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  • Building Awesome WM

    - by Dragan Chupacabrovic
    Hello, I am following these steps in order to build Awesome window manager on 10.04 I am building 3.4 while the tutorial is for 3.1 I installed all of the specified dependencies including cairo. EDIT I ran: sudo apt-get install libxcb-xtest0-dev libxcb-property1-dev libxdg-basedir-dev libstartup-notification0-dev and now it looks like I'm missing a library Please advise: awesome-3.4$ make Running cmake… -- cat - /bin/cat -- ln - /bin/ln -- grep - /bin/grep -- git - /usr/bin/git -- hostname - /bin/hostname -- gperf - /usr/bin/gperf -- asciidoc - /usr/bin/asciidoc -- xmlto - /usr/bin/xmlto -- gzip - /bin/gzip -- lua - /usr/bin/lua -- luadoc - /usr/bin/luadoc -- convert - /usr/bin/convert -- Configuring lib/naughty.lua -- Configuring lib/awful/tooltip.lua -- Configuring lib/awful/init.lua -- Configuring lib/awful/titlebar.lua -- Configuring lib/awful/key.lua -- Configuring lib/awful/mouse/init.lua -- Configuring lib/awful/mouse/finder.lua -- Configuring lib/awful/autofocus.lua -- Configuring lib/awful/screen.lua -- Configuring lib/awful/rules.lua -- Configuring lib/awful/widget/init.lua -- Configuring lib/awful/widget/taglist.lua -- Configuring lib/awful/widget/graph.lua -- Configuring lib/awful/widget/tasklist.lua -- Configuring lib/awful/widget/common.lua -- Configuring lib/awful/widget/prompt.lua -- Configuring lib/awful/widget/launcher.lua -- Configuring lib/awful/widget/button.lua -- Configuring lib/awful/widget/layoutbox.lua -- Configuring lib/awful/widget/layout/init.lua -- Configuring lib/awful/widget/layout/vertical.lua -- Configuring lib/awful/widget/layout/horizontal.lua -- Configuring lib/awful/widget/layout/default.lua -- Configuring lib/awful/widget/progressbar.lua -- Configuring lib/awful/widget/textclock.lua -- Configuring lib/awful/dbus.lua -- Configuring lib/awful/remote.lua -- Configuring lib/awful/client.lua -- Configuring lib/awful/prompt.lua -- Configuring lib/awful/completion.lua -- Configuring lib/awful/tag.lua -- Configuring lib/awful/util.lua -- Configuring lib/awful/button.lua -- Configuring lib/awful/menu.lua -- Configuring lib/awful/hooks.lua -- Configuring lib/awful/wibox.lua -- Configuring lib/awful/layout/init.lua -- Configuring lib/awful/layout/suit/init.lua -- Configuring lib/awful/layout/suit/floating.lua -- Configuring lib/awful/layout/suit/fair.lua -- Configuring lib/awful/layout/suit/spiral.lua -- Configuring lib/awful/layout/suit/magnifier.lua -- Configuring lib/awful/layout/suit/tile.lua -- Configuring lib/awful/layout/suit/max.lua -- Configuring lib/awful/placement.lua -- Configuring lib/awful/startup_notification.lua -- Configuring lib/beautiful.lua -- Configuring themes/zenburn//theme.lua -- Configuring themes/default//theme.lua -- Configuring themes/sky//theme.lua -- Configuring config.h -- Configuring awesomerc.lua -- Configuring awesome-version-internal.h -- Configuring awesome.doxygen -- Configuring done -- Generating done -- Build files have been written to: /home/druden/util/awesome-3.4/.build-vedroid-i486-linux-gnu-4.4.3 Running make Makefile… Building… [ 4%] Built target generated_sources [ 5%] Building C object CMakeFiles/awesome.dir/awesome.c.o In file included from /home/druden/util/awesome-3.4/spawn.h:25, from /home/druden/util/awesome-3.4/awesome.c:33: /home/druden/util/awesome-3.4/globalconf.h:57: error: expected specifier-qualifier-list before ‘xcb_event_handlers_t’ In file included from /home/druden/util/awesome-3.4/awesome.c:34: /home/druden/util/awesome-3.4/client.h: In function ‘client_stack’: /home/druden/util/awesome-3.4/client.h:212: error: ‘awesome_t’ has no member named ‘client_need_stack_refresh’ /home/druden/util/awesome-3.4/client.h: In function ‘client_raise’: /home/druden/util/awesome-3.4/client.h:227: error: ‘awesome_t’ has no member named ‘stack’ In file included from /home/druden/util/awesome-3.4/awesome.c:42: /home/druden/util/awesome-3.4/titlebar.h: In function ‘titlebar_update_geometry’: /home/druden/util/awesome-3.4/titlebar.h:150: error: ‘awesome_t’ has no member named ‘L’ /home/druden/util/awesome-3.4/titlebar.h:151: error: ‘awesome_t’ has no member named ‘L’ /home/druden/util/awesome-3.4/titlebar.h:152: error: ‘awesome_t’ has no member named ‘L’ In file included from /home/druden/util/awesome-3.4/awesome.c:47: /home/druden/util/awesome-3.4/common/xutil.h: In function ‘xutil_get_text_property_from_reply’: /home/druden/util/awesome-3.4/common/xutil.h:39: warning: ‘STRING’ is deprecated (declared at /usr/local/include/xcb/xcb_atom.h:83) /home/druden/util/awesome-3.4/common/xutil.h: At top level: /home/druden/util/awesome-3.4/common/xutil.h:60: error: expected ‘)’ before ‘*’ token /home/druden/util/awesome-3.4/awesome.c: In function ‘awesome_atexit’: /home/druden/util/awesome-3.4/awesome.c:65: error: ‘awesome_t’ has no member named ‘hooks’ /home/druden/util/awesome-3.4/awesome.c:66: error: ‘awesome_t’ has no member named ‘L’ /home/druden/util/awesome-3.4/awesome.c:66: error: ‘awesome_t’ has no member named ‘hooks’ /home/druden/util/awesome-3.4/awesome.c:68: error: ‘awesome_t’ has no member named ‘L’ /home/druden/util/awesome-3.4/awesome.c:73: error: ‘awesome_t’ has no member named ‘embedded’ /home/druden/util/awesome-3.4/awesome.c:76: error: ‘awesome_t’ has no member named ‘embedded’ /home/druden/util/awesome-3.4/awesome.c:77: error: ‘awesome_t’ has no member named ‘embedded’ /home/druden/util/awesome-3.4/awesome.c:89: error: ‘awesome_t’ has no member named ‘clients’ /home/druden/util/awesome-3.4/awesome.c:89: error: ‘awesome_t’ has no member named ‘clients’ /home/druden/util/awesome-3.4/awesome.c:89: error: ‘awesome_t’ has no member named ‘clients’ /home/druden/util/awesome-3.4/awesome.c:89: warning: type defaults to ‘int’ in declaration of ‘c’ /home/druden/util/awesome-3.4/awesome.c:89: error: ‘awesome_t’ has no member named ‘clients’ /home/druden/util/awesome-3.4/awesome.c:89: error: ‘awesome_t’ has no member named ‘clients’ /home/druden/util/awesome-3.4/awesome.c:89: error: ‘awesome_t’ has no member named ‘clients’ /home/druden/util/awesome-3.4/awesome.c:91: error: invalid type argument of ‘unary *’ (have ‘int’) /home/druden/util/awesome-3.4/awesome.c:92: error: invalid type argument of ‘unary *’ (have ‘int’) /home/druden/util/awesome-3.4/awesome.c:96: error: ‘awesome_t’ has no member named ‘L’ /home/druden/util/awesome-3.4/awesome.c: In function ‘a_xcb_check_cb’: /home/druden/util/awesome-3.4/awesome.c:223: warning: implicit declaration of function ‘xcb_event_handle’ /home/druden/util/awesome-3.4/awesome.c:223: error: ‘awesome_t’ has no member named ‘evenths’ /home/druden/util/awesome-3.4/awesome.c:230: error: ‘awesome_t’ has no member named ‘evenths’ /home/druden/util/awesome-3.4/awesome.c: In function ‘awesome_restart’: /home/druden/util/awesome-3.4/awesome.c:277: error: ‘awesome_t’ has no member named ‘argv’ /home/druden/util/awesome-3.4/awesome.c: In function ‘xerror’: /home/druden/util/awesome-3.4/awesome.c:305: error: ‘XCB_EVENT_ERROR_BAD_WINDOW’ undeclared (first use in this function) /home/druden/util/awesome-3.4/awesome.c:305: error: (Each undeclared identifier is reported only once /home/druden/util/awesome-3.4/awesome.c:305: error: for each function it appears in.) /home/druden/util/awesome-3.4/awesome.c:306: error: ‘XCB_EVENT_ERROR_BAD_MATCH’ undeclared (first use in this function) /home/druden/util/awesome-3.4/awesome.c:308: error: ‘XCB_EVENT_ERROR_BAD_VALUE’ undeclared (first use in this function) /home/druden/util/awesome-3.4/awesome.c: In function ‘main’: /home/druden/util/awesome-3.4/awesome.c:369: error: ‘awesome_t’ has no member named ‘keygrabber’ /home/druden/util/awesome-3.4/awesome.c:370: error: ‘awesome_t’ has no member named ‘mousegrabber’ /home/druden/util/awesome-3.4/awesome.c:376: error: ‘awesome_t’ has no member named ‘argv’ /home/druden/util/awesome-3.4/awesome.c:377: error: ‘awesome_t’ has no member named ‘argv’ /home/druden/util/awesome-3.4/awesome.c:381: error: ‘awesome_t’ has no member named ‘argv’ /home/druden/util/awesome-3.4/awesome.c:382: error: ‘awesome_t’ has no member named ‘argv’ /home/druden/util/awesome-3.4/awesome.c:424: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:425: error: ‘awesome_t’ has no member named ‘timer’ /home/druden/util/awesome-3.4/awesome.c:425: error: ‘awesome_t’ has no member named ‘timer’ /home/druden/util/awesome-3.4/awesome.c:425: error: ‘awesome_t’ has no member named ‘timer’ /home/druden/util/awesome-3.4/awesome.c:425: error: ‘awesome_t’ has no member named ‘timer’ /home/druden/util/awesome-3.4/awesome.c:425: error: ‘awesome_t’ has no member named ‘timer’ /home/druden/util/awesome-3.4/awesome.c:425: error: ‘awesome_t’ has no member named ‘timer’ /home/druden/util/awesome-3.4/awesome.c:431: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:432: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:433: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:434: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:435: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:436: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:443: error: ‘awesome_t’ has no member named ‘default_screen’ /home/druden/util/awesome-3.4/awesome.c:450: error: ‘awesome_t’ has no member named ‘have_xtest’ /home/druden/util/awesome-3.4/awesome.c:462: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:464: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:465: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:467: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:468: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:471: warning: implicit declaration of function ‘xcb_event_handlers_init’ /home/druden/util/awesome-3.4/awesome.c:471: error: ‘awesome_t’ has no member named ‘evenths’ /home/druden/util/awesome-3.4/awesome.c:472: warning: implicit declaration of function ‘xutil_error_handler_catch_all_set’ /home/druden/util/awesome-3.4/awesome.c:472: error: ‘awesome_t’ has no member named ‘evenths’ /home/druden/util/awesome-3.4/awesome.c:490: warning: implicit declaration of function ‘xcb_event_poll_for_event_loop’ /home/druden/util/awesome-3.4/awesome.c:490: error: ‘awesome_t’ has no member named ‘evenths’ /home/druden/util/awesome-3.4/awesome.c:493: error: ‘awesome_t’ has no member named ‘evenths’ /home/druden/util/awesome-3.4/awesome.c:496: error: ‘awesome_t’ has no member named ‘keysyms’ /home/druden/util/awesome-3.4/awesome.c:507: error: ‘awesome_t’ has no member named ‘colors’ /home/druden/util/awesome-3.4/awesome.c:510: error: ‘awesome_t’ has no member named ‘colors’ /home/druden/util/awesome-3.4/awesome.c:513: error: ‘awesome_t’ has no member named ‘font’ /home/druden/util/awesome-3.4/awesome.c:519: error: ‘awesome_t’ has no member named ‘keysyms’ /home/druden/util/awesome-3.4/awesome.c:519: error: ‘awesome_t’ has no member named ‘numlockmask’ /home/druden/util/awesome-3.4/awesome.c:520: error: ‘awesome_t’ has no member named ‘shiftlockmask’ /home/druden/util/awesome-3.4/awesome.c:520: error: ‘awesome_t’ has no member named ‘capslockmask’ /home/druden/util/awesome-3.4/awesome.c:521: error: ‘awesome_t’ has no member named ‘modeswitchmask’ /home/druden/util/awesome-3.4/awesome.c:563: error: ‘awesome_t’ has no member named ‘evenths’ /home/druden/util/awesome-3.4/awesome.c:572: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:575: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:576: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:577: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:578: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:579: error: ‘awesome_t’ has no member named ‘loop’ /home/druden/util/awesome-3.4/awesome.c:580: error: ‘awesome_t’ has no member named ‘loop’ make[3]: * [CMakeFiles/awesome.dir/awesome.c.o] Error 1 make[2]: [CMakeFiles/awesome.dir/all] Error 2 make[1]: [all] Error 2 make: * [cmake-build] Error 2

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  • How do I send traffic from my Mac's wifi to my VPN client?

    - by Heath Borders
    I need to connect my Android to a Juniper VPN. Unfortunately, Juniper doesn't support Android on our VPN version. We've already put in a feature request for it, but we have no idea how long it will take to be complete. Right now, I connect to the Juniper VPN with a Juniper Mac OSX VPN client that uses Java to install kernel extensions to start and stop the VPN. Thus, I can't use the Network panel in System Preferences to create a VPN device, which means it won't show up in the 'Sharing' panel's Internet Sharing Share your connection from: menu, as suggested here. I used newproc.d to see what /usr/libexec/InternetSharing did when it ran, and it runs the following processes: 2013 Nov 1 00:26:54 5565 <1> 64b /usr/libexec/launchdadd 2013 Nov 1 00:26:55 5566 <1> 64b /usr/libexec/InternetSharing 2013 Nov 1 00:26:56 5568 <5566> 64b natpmpd -d -y bridge100 en0 2013 Nov 1 00:26:56 5569 <1> 64b /usr/libexec/pfd -d 2013 Nov 1 00:26:56 5567 <5566> 64b bootpd -d -P My Juniper VPN client creates the following devices (output of ifconfig): jnc0: flags=841<UP,RUNNING,SIMPLEX> mtu 1400 inet 10.61.9.61 netmask 0xffffffff open (pid 920) jnc1: flags=841<UP,RUNNING,SIMPLEX> mtu 1450 closed So, it seems like I should just be able to do this and have everything work: sudo killall -9 natpmpd sudo /usr/libexec/natpmpd -y bridge100 jnc0 My android connected fine and could hit public internet sites, but it couldn't hit private VPN sites. I assume this is because I need to change the routes that /usr/libexec/InternetSharing sets up. This is the output from sudo pfctl -s all before starting Internet Sharing: No ALTQ support in kernel ALTQ related functions disabled TRANSLATION RULES: nat-anchor "com.apple/*" all rdr-anchor "com.apple/*" all FILTER RULES: scrub-anchor "com.apple/*" all fragment reassemble anchor "com.apple/*" all DUMMYNET RULES: dummynet-anchor "com.apple/*" all INFO: Status: Disabled for 0 days 00:11:02 Debug: Urgent State Table Total Rate current entries 0 searches 22875 34.6/s inserts 1558 2.4/s removals 1558 2.4/s Counters match 2005 3.0/s bad-offset 0 0.0/s fragment 0 0.0/s short 0 0.0/s normalize 0 0.0/s memory 0 0.0/s bad-timestamp 0 0.0/s congestion 0 0.0/s ip-option 12 0.0/s proto-cksum 0 0.0/s state-mismatch 1 0.0/s state-insert 0 0.0/s state-limit 0 0.0/s src-limit 0 0.0/s synproxy 0 0.0/s dummynet 0 0.0/s TIMEOUTS: tcp.first 120s tcp.opening 30s tcp.established 86400s tcp.closing 900s tcp.finwait 45s tcp.closed 90s tcp.tsdiff 60s udp.first 60s udp.single 30s udp.multiple 120s icmp.first 20s icmp.error 10s grev1.first 120s grev1.initiating 30s grev1.estblished 1800s esp.first 120s esp.estblished 900s other.first 60s other.single 30s other.multiple 120s frag 30s interval 10s adaptive.start 6000 states adaptive.end 12000 states src.track 0s LIMITS: states hard limit 10000 app-states hard limit 10000 src-nodes hard limit 10000 frags hard limit 5000 tables hard limit 1000 table-entries hard limit 200000 OS FINGERPRINTS: 696 fingerprints loaded This is the output from sudo pfctl -s all after starting Internet Sharing: No ALTQ support in kernel ALTQ related functions disabled TRANSLATION RULES: nat-anchor "com.apple/*" all nat-anchor "com.apple.internet-sharing" all rdr-anchor "com.apple/*" all rdr-anchor "com.apple.internet-sharing" all FILTER RULES: scrub-anchor "com.apple/*" all fragment reassemble scrub-anchor "com.apple.internet-sharing" all fragment reassemble anchor "com.apple/*" all anchor "com.apple.internet-sharing" all DUMMYNET RULES: dummynet-anchor "com.apple/*" all STATES: ALL tcp 10.0.1.32:50593 -> 74.125.225.113:443 SYN_SENT:CLOSED ALL udp 10.0.1.32:61534 -> 10.0.1.1:53 SINGLE:NO_TRAFFIC ALL udp 10.0.1.32:55433 -> 10.0.1.1:53 SINGLE:NO_TRAFFIC ALL udp 10.0.1.32:64041 -> 10.0.1.1:53 SINGLE:NO_TRAFFIC ALL tcp 10.0.1.32:50619 -> 74.125.225.131:443 SYN_SENT:CLOSED INFO: Status: Enabled for 0 days 00:00:01 Debug: Urgent State Table Total Rate current entries 5 searches 22886 22886.0/s inserts 1563 1563.0/s removals 1558 1558.0/s Counters match 2010 2010.0/s bad-offset 0 0.0/s fragment 0 0.0/s short 0 0.0/s normalize 0 0.0/s memory 0 0.0/s bad-timestamp 0 0.0/s congestion 0 0.0/s ip-option 12 12.0/s proto-cksum 0 0.0/s state-mismatch 1 1.0/s state-insert 0 0.0/s state-limit 0 0.0/s src-limit 0 0.0/s synproxy 0 0.0/s dummynet 0 0.0/s TIMEOUTS: tcp.first 120s tcp.opening 30s tcp.established 86400s tcp.closing 900s tcp.finwait 45s tcp.closed 90s tcp.tsdiff 60s udp.first 60s udp.single 30s udp.multiple 120s icmp.first 20s icmp.error 10s grev1.first 120s grev1.initiating 30s grev1.estblished 1800s esp.first 120s esp.estblished 900s other.first 60s other.single 30s other.multiple 120s frag 30s interval 10s adaptive.start 6000 states adaptive.end 12000 states src.track 0s LIMITS: states hard limit 10000 app-states hard limit 10000 src-nodes hard limit 10000 frags hard limit 5000 tables hard limit 1000 table-entries hard limit 200000 TABLES: OS FINGERPRINTS: 696 fingerprints loaded It looks like I need to change the pf settings that /usr/libexec/InternetSharing set up, but I have no idea how to do that.

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  • I can learn either C or Java, which one should I choose first? Should I take them concurrently?

    - by GR1000
    I realize this is a subject of hot debate, but I'm interested in opinions that relate to my specific situation. I want to learn the basics and fundamentals of programming, so I'm already taking a college course in general programming concepts. It isn't covering a specific language, but it's giving me a solid foundation that I can build upon when I move on to a class that teaches a specific language. My two options for a specific language are Java and C because those are the two languages taught at the college I want to take classes from. What I want to do is learn a complex language so that I can apply that knowledge to languages that I use, or will eventually use, in my current job building web pages: XHTML, CSS, JavaScript, PHP, XML, ActionScript. I'm not necessariy interested in becoming a Java developer or a C developer in the immediate future, but I do have aspirations of developing web applications and iPod/iPhone applications. So, basically, I'm looking for answers to these questions and the reasoning behind them: Do I take the introductory course in Java first, and then take the intro course in C, or Do I take C first and then take Java? Is there any reason not to take them concurrently? Should I skip C altogether as Java covers everything I need to know? EDIT: Thanks everyone for your thoughtful and insightful responses.

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  • how to think like a computer scientist java edition exercise 7.2 [on hold]

    - by James Canfield
    I cannot figure out how to write this program, can someone please help me?! The purpose of this method is to practice manipulating St rings. Create a new program called Name.java. This program will take a name string consisting of EITHER a first name followed by a last name (nonstandar d format) or a last name followed by a comma then a first name (standard format). Ie . “Joe Smith” vs. “Smith, Joe”. This program will convert the string to standard format if it is not already in standard format. Write a method called hasComma that takes a name as an argument and that returns a boolean indicating whether it contains a comma. If i t does, you can assume that it is in last name first format. You can use the indexOf String m ethod to help you. Write a method called convertName that takes a name as an argument. It should check whether it contains a comma by calling your hasComma method. If it does, it should just return the string. If not, then it should assume th at the name is in first name first format, and it should return a new string that contains the name converted to last name comma first format. Uses charAt, length, substring, and indexOf methods. In your main program, loop, asking the user for a n ame string. If the string is not blank, call convertName and print the results. The loop terminat es when the string is blank. HINTS/SUGGESTIONS: Use the charAt, length, substring, and indexOf Str ing methods. Use scanner for your input. To get the full line, complete with spaces, use reader.nextLine()

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  • Glitch-free cross-fades in HTML5

    - by Alexander Gladysh
    In my HTML5 canvas game, I need to cross-fade two sprites which have some glow around them. (Glow is backed into sprites.) Initially, the first sprite is visible. During the cross-fade the first sprite should vanish, and be replaced with the second one. How exactly the cross-fade is done — does not matter, as long as it is smooth and there are no visual glitches. I've tried two techniques: During the cross-fade I simultaneously interpolate alpha of the first sprite from 1.0 to 0.0, and alpha of the second sprite — from 0.0 to 1.0. With this technique I can see background in the middle of the cross-fade. That's because both sprites are semi-transparent most of the time. During the cross-fade I first interpolate alpha of the second sprite from 0.0 to 1.0 (first sprite alpha is at 1.0), and then interpolate alpha of the first sprite from 1.0 to 0.0. With this technique background is not seen, but the glow around sprites flashes during the cross-fide — when both sprites are near the full visibility. In non-HTML5 game I'd use shaders to do cross-fade separately in RGB and alpha channels. Is there a trick to do the cross-fade I need in HTML5 without visual glitches?

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  • Web Crawler for Learnign Topics on Wikipedia

    - by Chris Okyen
    When I want to learn a vast topic on wikipedia, I don't know where to start. For instance say I want to learn about Binary Stars, I then have to know other things linked on that pages and linked pages on all the linked pages and so on for the specified number of levels. I want to write a web crawler like HTTracker or something similiar, that will display a heiarchy of the links on a certain page and the links on those linked pages.I wish to use as much prewritten code as possible. Here is an example: Pretending we are bending the rules by grabing links from only the first sentence of each pages The example archives and "processes" two levels deep The page is Ternary operation The First Level In mathematics a ternary operation is an N-ary operation The Second Level Under Mathmatics: Mathematics (from Greek µ???µa máthema, “knowledge, study, learning”) is the abstract study of topics encompassing quantity, structure, space, change and others; it has no generally accepted definition. Under N-ary In logic,mathematics, and computer science, the arity i/'ær?ti/ of a function or operation is the number of arguments or operands that the function takes Under Operation In its simplest meaning in mathematics and logic, an operation is an action or procedure which produces a new value from one or more input values ------------------------------------------------------------------------- I need some way to determine what oder to approach all these wiki pages to learn the concept ( in this case ternary operations )... Following along with this exmpakle, one way to show the path to read would a printout flowout like so: This shows that the first sentence of the Mathematics page doesn't link to the first sentence of pages linked on ternary page two levels deep. (Please tell me how I should explain this ) --- In otherwords, the child node of the top pages first sentence, ternary_operation, does not have any child nodes that reference the children of the top pages other children nodes- N-ary and operation. Thus it is safe to read this first. Since N-ary has a link to operations we shoudl read the operation page second and finally read the N-ary page last. Again, I wish to use as much prewritten code as possible, and was wondering what language to use and what would be the simpliest way to go about doing this if there isn't already somethign out there? Thank You!

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  • Where is the best place to teach myself a language, and which one?

    - by Lorinda
    Hello, I do not know any programming languages at all. I will self teach myself and need to know the best place to do so where I can learn from a most basic level. Where is a great place to begin learning a language? What language is best to learn first? Is it silly to learn Ruby first? Here, I came across someone saying that learning some of the higher languages can make you 'lazy' if you learn them first. Like Ruby amongst others. For my first language, my husband is advising me to learn Ruby (for his own personal interests). However, I need some independent advice of how to get started and what language I should learn first. I will eventually learn Ruby and then Rails. Four months ago, my husband ordered a text of objective C because he thought he would take it on. I flipped through and it was clearly starting at a place more advanced than where I am coming from. I have dabbled with a Ruby tutorial and I don't get it. I get what I am putting in is what I get, but I don't understand what is leading up to that. I need to know ALL the rules first. I then looked up computer languages and stared researching binary code which helped a lot, but not where I want to start. I don't have a lot of time right now in my life (with four kids) to go back that far. If I were going to school, that would be different. Any advice you could give is most welcomed.

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  • How to set tooltips on ListView Subitems in .Net

    - by Ryan
    I am trying to set the tool tip text for some of my subitems in my listview control. I am unable to get the tool tip to show up. Anyone have any suggestions? Private _timer As Timer Private Sub Timer() If _timer Is Nothing Then _timer = New Timer _timer.Interval = 500 AddHandler _timer.Tick, AddressOf TimerTick _timer.Start() End If End Sub Private Sub TimerTick(ByVal sender As Object, ByVal e As EventArgs) _timer.Enabled = False End Sub Protected Overrides Sub OnMouseMove(ByVal e As System.Windows.Forms.MouseEventArgs) If Not _timer.Enabled Then Dim item = Me.HitTest(e.X, e.Y) If Not item Is Nothing AndAlso Not item.SubItem Is Nothing Then If item.SubItem.Text = "" Then Dim tip = New ToolTip Dim p = item.SubItem.Bounds tip.ToolTipTitle = "Status" tip.ShowAlways = True tip.Show("FOO", Me, e.X, e.Y, 1000) _timer.Enabled = True End If End If End If MyBase.OnMouseMove(e) End Sub

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  • How To AutoScroll a DataGridView during Drag and Drop

    - by Mason
    One of the forms in my C# .NET application has multiple DataGridViews that implement drag and drop to move the rows around. The drag and drop mostly works right, but I've been having a hard time getting the DataGridViews to AutoScroll - when a row is dragged near the top or bottom of the box, to scroll it in that direction. So far, I've tried implementing a version of this solution. I have a ScrollingGridView class inheriting from DataGridView that implements the described timer, and according to the debugger, the timer is firing appropriately, but the timer code: SendMessage(Handle, WM_VSCROLL, (IntPtr)scrollDirectionInt, IntPtr.Zero); doesn't do anything as far as I can tell, possibly because I have multiple DataGridViews in the form. I also tried modifying the AutoScrollOffset property, but that didn't do anything either. Investigation of the DataGridView and ScrollBar classes doesn't seem to suggest any other commands or functions that will actually make the DataGridView scroll. Can anyone help me with a function that will actually scroll the DataGridView, or some other way to solve the problem?

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  • NSTask or NSThread?

    - by Ben Packard
    I have some code that is attached to an NSTimer. Around 5 times every second, it interacts with another application (by emulating keystrokes) and when appropriate spits out an NSNotification, that is handled by another piece of code. While the timer code is running, the UI is unresponsive, so I can't include a 'stop' button that halts the timer. How should I handle this? A separate process (NSTask right?) or thread? Remember that at unpredictable times, the timer code will need to send some info back for processing. Thanks.

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  • Is there a way to delay an event handler (say for 1 sec) in Windows Forms

    - by Essam
    I need to be able to delay the event handlers for some controls (like a button) to be fired for example after 1 sec of the actual event (click event for example) .. is this possible by the .net framework ? I use a timer and call my code from the timer's tick event as below but I am not sure if this is the best approach ! void onButtonClick( ..) { timer1.Enabled = true; } void onTimerTick( ..) { timer.Enabled = false; CallMyCodeNow(); }

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  • Where to look for real url

    - by smallB
    I'm trying to write simple application for downloading videos from youtube. My code for getting file (http://www.youtube.com/watch?v=pViMzR_ylXg) looks like: bool FD_core::get_file() { QNetworkRequest request; request.setUrl(QUrl("http://www.youtube.com/watch?v=pViMzR_ylXg")); connect(network_access_manager_, SIGNAL(finished(QNetworkReply*)), this, SLOT(onRequestCompleted(QNetworkReply *))); network_access_manager_->get(request); return true; } void FD_core::onRequestCompleted(QNetworkReply * reply) { QByteArray data_ = reply->readAll(); cout << data_.constData(); qDebug() << "size: " << data_.size(); } In the above function data_.constData() produces lots of text, part (very small) of it: <!DOCTYPE html> <html lang="en" dir="ltr" > <head> <script> var yt = yt || {};yt.timing = yt.timing || {};yt.timing.tick = function(label, opt_time) {var timer = yt.timing['timer'] || {};if(opt_time) {timer[label] = opt_time;}else {timer[label] = new Date().getTime();}yt.timing['timer'] = timer;};yt.timing.info = function(label, value) {var info_args = yt.timing['info_args'] || {};info_args[label] = value;yt.timing['info_args'] = info_args;};yt.timing.info('e', "907050,906359,927900,919320,914021,916611,922401,920704,912806,927201,925706,928001,922403,913546,913556,920201,911116,901451");yt.timing.wff = true;yt.timing.info('pr', "1");yt.timing.info('an', "dclk,aftv,afv");if (document.webkitVisibilityState == 'prerender') {document.addEventListener('webkitvisibilitychange', function() {yt.timing.tick('start');}, false);}yt.timing.tick('start');yt.timing.info('li','0');try {yt.timing['srt'] = window.gtbExternal && window.gtbExternal.pageT() ||window.external && window.external.pageT;} catch(e) {}if (window.chrome && window.chrome.csi) {yt.timing['srt'] = Math.floor(window.chrome.csi().pageT);}if (window.msPerformance && window.msPerformance.timing) {yt.timing['srt'] = window.msPerformance.timing.responseStart - window.msPerformance.timing.navigationStart;} </script> <script>var yt = yt || {};yt.preload = {};yt.preload.counter_ = 0;yt.preload.start = function(src) {var img = new Image();var counter = ++yt.preload.counter_;yt.preload[counter] = img;img.onload = img.onerror = function () {delete yt.preload[counter];};img.src = src;img = null;};yt.preload.start("http:\/\/o-o---preferred---sn-xn5ucu-q0ce---v3---lscache7.c.youtube.com\/crossdomain.xml");yt.preload.start("http:\/\/o-o---preferred---sn-xn5ucu-q0ce---v3---lscache7.c.youtube.com\/generate_204?ip=95.83.224.63\u0026upn=A3aUhLYV55M\u0026sparams=algorithm%2Cburst%2Ccp%2Cfactor%2Cgcr%2Cid%2Cip%2Cipbits%2Citag%2Csource%2Cupn%2Cexpire\u0026fexp=907050%2C906359%2C927900%2C919320%2C914021%2C916611%2C922401%2C920704%2C912806%2C927201%2C925706%2C928001%2C922403%2C913546%2C913556%2C920201%2C911116%2C901451\u0026mt=1354207274\u0026key=yt1\u0026algorithm=throttle-factor\u0026burst=40\u0026ipbits=8\u0026itag=34\u0026sver=3\u0026signature=692E605215EB4D2CA407291CA26E14B844768A89.7A2930CE25FDDFC7C4FF5AA56DD02538B0020267\u0026mv=m\u0026source=youtube\u0026ms=au\u0026gcr=ie\u0026expire=1354228237\u0026factor=1.25\u0026cp=U0hUSVJNVl9IUUNONF9KR1pDOi0tSFhhRzVFRkd6\u0026id=a5588ccd1ff29578");</script><title>Die Antwoord - Fok Julle Naaiers (Mike Tyson&#39;s Words NOT DJ Hi-Teks) - YouTube</title><link rel="search" type="application/opensearchdescription+xml" href="http://www.youtube.com/opensearch?locale=en_US" title="YouTube Video Search"><link rel="icon" href="http://s.ytimg.com/yts/img/favicon-vfldLzJxy.ico" type="image/x-icon"><link rel="shortcut icon" href="http://s.ytimg.com/yts/img/favicon-vfldLzJxy.ico" type="image/x-icon"> <link rel="icon" href="//s.ytimg.com/yts/img/favicon_32-vflWoMFGx.png" sizes="32x32"><link rel="canonical" href="/watch?v=pViMzR_ylXg"><link rel="alternate" media="handheld" href="http://m.youtube.com/watch?v=pViMzR_ylXg"><link rel="alternate" media="only screen and (max-width: 640px)" href="http://m.youtube.com/watch?v=pViMzR_ylXg"><link rel="shortlink" href="http://youtu.be/pViMzR_ylXg"> <meta name="title" content="Die Antwoord - Fok Julle Naaiers (Mike Tyson&#39;s Words NOT DJ Hi-Teks)"> <meta name="description" content="Some of the lyrics of &quot;Die Antwoord&quot; new single &quot;Fok Julle Naaiers&quot; have caused such controversy that Die Antwoord have split with their record label Intersc..."> <meta name="keywords" content="Die Antwoord, Fok Julle Naaiers, Mike Tyson, DJ Hi-Tek, Faggot"> <link rel="alternate" type="application/json+oembed" href="http://www.youtube.com/oembed?url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DpViMzR_ylXg&amp;format=json" title="Die Antwoord - Fok Julle Naaiers (Mike Tyson&#39;s Words NOT DJ Hi-Teks)"> <link rel="alternate" type="text/xml+oembed" href="http://www.youtube.com/oembed?url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DpViMzR_ylXg&amp;format=xml" title="Die Antwoord - Fok Julle Naaiers (Mike Tyson&#39;s Words NOT DJ Hi-Teks)"> <meta property="og:url" content="http://www.youtube.com/watch?v=pViMzR_ylXg"> <meta property="og:title" content="Die Antwoord - Fok Julle Naaiers (Mike Tyson&#39;s Words NOT DJ Hi-Teks)"> <meta property="og:description" content="Some of the lyrics of &quot;Die Antwoord&quot; new single &quot;Fok Julle Naaiers&quot; have caused such controversy that Die Antwoord have split with their record label Intersc..."> <meta property="og:type" content="video"> <meta property="og:image" content="http://i1.ytimg.com/vi/pViMzR_ylXg/mqdefault.jpg"> <meta property="og:video" content="http://www.youtube.com/v/pViMzR_ylXg?version=3&amp;autohide=1"> <meta property="og:video:type" content="application/x-shockwave-flash"> <meta property="og:video:width" content="853"> <meta property="og:video:height" content="480"> <meta property="og:site_name" content="YouTube"> <meta property="fb:app_id" content="87741124305"> <meta name="twitter:card" value="player"> <meta name="twitter:site" value="@youtube"> <meta name="twitter:player" value="https://www.youtube.com/embed/pViMzR_ylXg"> <meta property="twitter:player:width" content="853"> <meta property="twitter:player:height" content="480"> So my question is, where in this file is the url hidden which will allow me to download the wanted file?

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  • setTimout not stopping

    - by Ken
    Hi all, I'm building a quiz and user has 5 seconds to respond to the qeustion if he doesn't resond within the time the answer is 3(wich is a code for no answer). Timer updates just fine until you answer a qeustion from that point the timer runs out of control you see 5,3,4,0 and go to the next qeustion with the answer 3 does anyone know how to kill the old timer? function tijd(aantalSec){ document.getElementById("sec").innerHTML = aantalSec; if(aantalSec == 0){ clearTimeout(tijd); antwoord(3); }else{ aantalSec = aantalSec - 1; var tijd = setTimeout('tijd(' + aantalSec + ',0)',1000); } }

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  • JPanel Layout Image Cutoff

    - by Trizicus
    I am adding images to a JPanel but the images are getting cut off. I was originally trying BorderLayout but that only worked for one image and adding others added image cut-off. So I switched to other layouts and the best and closest I could get was BoxLayout however that adds a very large cut-off which is not acceptable either. So basically; How can I add images (from a custom JComponent) to a custom JPanel without bad effects such as the one present in the code. Custom JPanel: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import javax.swing.BoxLayout; import javax.swing.JPanel; import javax.swing.Timer; public class GraphicsPanel extends JPanel implements MouseListener { private Entity test; private Timer timer; private long startTime = 0; private int numFrames = 0; private float fps = 0.0f; GraphicsPanel() { test = new Entity("test.png"); Thread t1 = new Thread(test); t1.start(); Entity ent2 = new Entity("images.jpg"); ent2.setX(150); ent2.setY(150); Thread t2 = new Thread(ent2); t2.start(); Entity ent3 = new Entity("test.png"); ent3.setX(0); ent3.setY(150); Thread t3 = new Thread(ent3); t3.start(); //ESSENTIAL setLayout(new BoxLayout(this, BoxLayout.X_AXIS)); add(test); add(ent2); add(ent3); //GAMELOOP timer = new Timer(30, new Gameloop(this)); timer.start(); addMouseListener(this); } @Override public void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D) g.create(); g2.setClip(0, 0, getWidth(), getHeight()); g2.setColor(Color.BLACK); g2.drawString("FPS: " + fps, 1, 15); } public void getFPS() { ++numFrames; if (startTime == 0) { startTime = System.currentTimeMillis(); } else { long currentTime = System.currentTimeMillis(); long delta = (currentTime - startTime); if (delta > 1000) { fps = (numFrames * 1000) / delta; numFrames = 0; startTime = currentTime; } } } public void mouseClicked(MouseEvent e) {} public void mousePressed(MouseEvent e) {} public void mouseReleased(MouseEvent e) {} public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } class Gameloop implements ActionListener { private GraphicsPanel gp; Gameloop(GraphicsPanel gp) { this.gp = gp; } public void actionPerformed(ActionEvent e) { try { gp.getFPS(); gp.repaint(); } catch (Exception ez) { } } } } Main class: import java.awt.EventQueue; import javax.swing.JFrame; public class MainWindow { public static void main(String[] args) { new MainWindow(); } private JFrame frame; private GraphicsPanel gp = new GraphicsPanel(); MainWindow() { EventQueue.invokeLater(new Runnable() { public void run() { frame = new JFrame("Graphics Practice"); frame.setSize(680, 420); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(gp); } }); } } Custom JComponent import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import javax.swing.JComponent; public class Entity extends JComponent implements Runnable { private BufferedImage bImg; private int x = 0; private int y = 0; private int entityWidth, entityHeight; private String filename; Entity(String filename) { this.filename = filename; } public void run() { bImg = loadBImage(filename); entityWidth = bImg.getWidth(); entityHeight = bImg.getHeight(); setPreferredSize(new Dimension(entityWidth, entityHeight)); } @Override public void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g.create(); g2d.drawImage(bImg, x, y, null); g2d.dispose(); } public BufferedImage loadBImage(String filename) { try { bImg = ImageIO.read(getClass().getResource(filename)); } catch (Exception e) { } return bImg; } public int getEntityWidth() { return entityWidth; } public int getEntityHeight() { return entityHeight; } public int getX() { return x; } public int getY() { return y; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } }

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  • Negative execution time

    - by FinalArt2005
    Hello, I wrote a little program that solves 49151 sudoku's within an hour for an assignment, but we had to time it. I thought I'd just let it run and then check the execution time, but it says -1536.087 s. I'm guessing it has to do with the timer being some signed dataype or something, but I have no idea what datatype is used for the timer in the console (code::blocks console, I'm not sure if this is actually a separate console, or just a runner that runs the terminal from the local operating system), so I can't check what the real time was. I'd rather not run this again with some coded timer within my program, since I'd like to be able to use my pc again now. Anybody have any idea what this time could be? It should be somewhere between 40 and 50 minutes, so between 2400 and 3000 seconds. Regards, Erik

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  • Pause and Resume AsyncTasks? (Android)

    - by Matt Swanson
    I have an AsyncTask that acts as a countdown timer for my game. When it completes the countdown it displays the out of time end screen and it also updates the timer displayed on the screen. Everything works fine, except I need to be able to pause and resume this when the pause button in the game is pressed. If I cancel it and try to re-execute it, it crashes with an IllegalStateException. If I cancel it and instantiate a new AsyncTask in its place the old one begins to run again and the new one runs at the same time. Is there a way to cancel/pause the timer and restart it using AsyncTasks or is there a different way I should be going about doing this?

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  • Are rails timers reliable when using Net::HTTP?

    - by Frank
    Hi All. When reading data from a potentially slow website, I want to ensure that get_response can not hang, and so added a timer to timeout after x seconds. So far, so good. I then read http://ph7spot.com/musings/system-timer which illustrates that in certain situations timer.rb doesn't work due to ruby's implementation of threads. Does anyone know if this is one of these situations? url = URI.parse(someurl) begin Timeout::timeout(30) do response = Net::HTTP.get_response(url) @responseValue = CGI.unescape(response.body) end rescue Exception = e dosomething end

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  • NSMutableArray EXC_BAD_EXCESS SIGBUS

    - by sujyanarayan
    Hi, I've the following code which causes crashes after sometime as i've set the below code in a timer:- CGImageRef cgImage = UIGetScreenImage(); [array addObject:(id)cgImage]; CGImageRelease(cgImage); Where initiallly i've declared "array" as: array = [[NSMutableArray alloc] init]; The timer goes well till 10 seconds as timer is of 1/10 seconds after 10 seconds it crashes. I think the application crashes because of EXC_BAD_EXCESS but dont know how to solve. Can Anybody help in solving the problem? Thanks in Adv.

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  • Reducing time in C# Forms Control.set_Text(string) function

    - by awshepard
    Hoping for a quick answer (which SO seems to be pretty good for)... I just ran a performance analysis with VS2010 on my app, and it turns out that I'm spending about 20% of my time in the Control.set_Text(string) function, as I'm updating labels in quite a few places in my app. The window has a timer object (Forms timer, not Threading timer) that has a timer1_Tick callback, which updates one label every tick (to give a stop-watch sort of effect), and updates about 15 labels once each second. Does anyone have quick suggestions for how to reduce the amount of time spent updating text on a form, other than increasing the update interval? Are there other structures or functions I should be using?

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  • Flash CS, reference root from external class

    - by Lotus
    Hi, I made this class and I put it in the same package of Timeline.as (the Document Class): package { import flash.utils.Timer; import flash.events.TimerEvent; public class Counter2 extends Timer { public function Counter2(delay:Number, repeatCount:int=0) { super(delay, repeatCount); super.addEventListener(TimerEvent.TIMER, timerHandler); } public override function start():void { super.start(); } public override function stop():void { super.stop(); } public function timerHandler(evt:TimerEvent) { trace(evt.target.currentCount); } } } This class is instanciated in Timeline.as constructor. Is there any way to reference Timeline(root) from this class? And, if so, how? Thanks!

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  • android: Check if a View is bringed to front

    - by user329692
    Hi Guys! I made a custom component which simple extends a WebView This component is used into activities that are loaded from a tabhost. This component creates a timertask too. I'd like to execute the task only if the activity that contains the component is visible. Ex: public class MyWebView extends WebView { public MyWebView(Context context, AttributeSet as) { super(context,as); /** More code **/ TimerTask ttask = new TimerTask() { @Override public void run() { if (iamvisible) doStuff(); } }; timer = new Timer(); timer.schedule(ttask, refreshInterval * 1000, refreshInterval * 1000); } } How can I set the iamvisible variable? I tried overriding onWindowFocusChanged and onWindowVisibilityChanged but with no luck Regards in advance

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  • Client-side session timeout redirect in ASP.Net

    - by Mercury821
    I want to build a way to automatically redirect users to Timeout.aspx when their session expires due to inactivity. My application uses forms authentication and relies heavily on update panels within the same aspx page for user interaction, so I don't want to simply redirect after a page-level timer expires. For the same reason, I can't use '<meta http-equiv="refresh"/>' What I want to do is create a simple ajax web service with a method called IsSessionTimedOut(), that simply returns a boolean. I will use a javascript timer to periodically call the method, and if it returns true, then redirect to Timeout.aspx. However, I don't want calling this method to reset the session timeout timer, or the session would never time out because of the service call. Is there a clean way to avoid this catch-22? Hopefully there is an easy solution that has so far eluded me.

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  • Forked Function not assigning pointer

    - by Luke Mcneice
    In the code below I have a function int GetTempString(char Query[]); calling it in main works fine. However, when calling the function from a fork the fork hangs (stops running, no errors, no output) before this line: pch = strtok (Query," ,"); the printf shows that the pointer to pch is null. Again this only happens when the fork is executing it. What am I doing doing wrong? int main() { if((Timer =fork())==-1) printf("Timer Fork Failed"); else if(Timer==0) { while(1) { sleep(2); GetTempString("ch 1,2,3,4"); } } else { //CODE GetTempString("ch 1,2,3,4"); } } int GetTempString(char Query[]) { char * pch; printf("DEBUG: '%s'-'%d'\n",Query,pch); pch = strtok (Query," ,");//* PROBLEM HERE* //while loop for strtok... return 1; }

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  • use boolean with visible, as3

    - by VideoDnd
    Is there a better way to do use a use a boolean with visible? This animation blinks 30 times and stops. It works without error, but takes a moment to load. I would like to learn other ways of using visibility with conditionals. var timz:Timer = new Timer(100,30); timz.addEventListener(TimerEvent.TIMER, doIt); var condition:Number = 5; function doIt(event:TimerEvent):void{ trace("fire!"); if(condition=5){ box.visible = !box.visible; } } timz.start();

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  • Pause auto-rotate on mouseover (jQuery)

    - by Nimbuz
    I'm using a content slider plugin that is nice but lacks one important feature: does not stop auto-rotating slides on mouseover. Here's the relevant part from the script: var dotimer = function (x){ if((opts.auto) == true) { if(timer != null) clearInterval(timer); timer = setInterval(function() { $(opts.next).click(); }, 3000); } } dotimer(); Full script can be previewed here I want the rotation to pause on mouseover and resume on mouseout. Thanks in advance for your help!

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