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  • Generating a readable colour from RGB?

    - by Joe Simpson
    Hi, I'm putting in a function which will allow a user to input a color (eg: purple) and it will change the look of their profile to be purple. It's interpreted from text into a 'Color' class which stores them inside itself as RGB numbers (int for red, one for green and other for blue). What i don't know how to do is logically turn these three numbers into another 3 which will make a readable colour. Can anyone help me on how to do this? Joe

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  • Impossible to use ref and out in Extension methods?

    - by Hun1Ahpu
    Why is it forbidden to call Extension method with ref modifier? This one is possible: public static void Change(ref TestClass testClass, TestClass testClass2) { testClass = testClass2; } And this one not: public static void ChangeWithExtensionMethod(this ref TestClass testClass, TestClass testClass2) { testClass = testClass2; } But why?

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  • How to edit the code table for one row only?

    - by TomatoSandwich
    I understand that dw-control.Object.columnname.Values("Red~tR/Blue~tB) changes columnname's values for all rows, but is there code that can just change the dropdown values of a code table for specific row/s? I've tried dw-control.Object.columnname[row].Values but I get R0039 in response :(

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  • Why does the rename() syscall prohibit moving a directory that I can't write to a different director

    - by Daniel Papasian
    I am trying to understand why this design decision was made with the rename() syscall in 4.2BSD. There's nothing I'm trying to solve here, just understand the rationale for the behavior itself. 4.2BSD saw the introduction of the rename() syscall for the purpose of allowing atomic renames/moves of files. From 4.3BSD-Reno/src/sys/ufs/ufs_vnops.c: /* * If ".." must be changed (ie the directory gets a new * parent) then the source directory must not be in the * directory heirarchy above the target, as this would * orphan everything below the source directory. Also * the user must have write permission in the source so * as to be able to change "..". We must repeat the call * to namei, as the parent directory is unlocked by the * call to checkpath(). */ if (oldparent != dp->i_number) newparent = dp->i_number; if (doingdirectory && newparent) { VOP_LOCK(fndp->ni_vp); error = ufs_access(fndp->ni_vp, VWRITE, tndp->ni_cred); VOP_UNLOCK(fndp->ni_vp); So clearly this check was added intentionally. My question is - why? Is this behavior supposed to be intuitive? The effect of this is that one cannot move a directory (located in a directory that one can write) that one cannot write to another directory that one can write to atomically. You can, however, create a new directory, move the links over (assuming one has read access to the directory), and then remove one's write bit on the directory. You just can't do so atomically. % cd /tmp % mkdir stackoverflow-question % cd stackoverflow-question % mkdir directory-1 % mkdir directory-2 % mkdir directory-1/directory-i-cant-write % echo "foo" > directory-1/directory-i-cant-write/contents % chmod 000 directory-1/directory-i-cant-write/contents % chmod 000 directory-1/directory-i-cant-write % mv directory-1/directory-i-cant-write directory-2 mv: rename directory-1/directory-i-cant-write to directory-2/directory-i-cant-write: Permission denied We now have a directory I can't write with contents I can't read that I can't move atomically. I can, however, achieve the same effect non-atomically by changing permissions, making the new directory, using ln to create the new links, and changing permissions. (Left as an exercise to the reader) . and .. are special cased already, so I don't particularly buy that it is intuitive that if I can't write a directory I can't "change .." which is what the source suggests. Is there any reason for this besides it being the perceived correct behavior by the author of the code? Is there anything bad that can happen if we let people atomically move directories (that they can't write) between directories that they can write?

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  • How to create dependencies in automake?

    - by Sam
    Hello, I have a Makefile.am file right now that looks like this: lib_LIBRARIES = foo.a foo_a_SOURCES = bar.F90 baz.F90 When compiled, bar.F90 gives bar.o. However, bar.F90 depends on several other Fortran files (cat.F90, dog.F90, pig.F90). I want to set up Automake to rebuild bar.o if the source of one of these dependencies change. I've been reading the GNU manuals for automake/autoconf and was unable to find a solution to this. Thanks for reading.

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  • Pause-able download

    - by zubin71
    Hello, I have an Apache server running which hosts a php web application. Also, its provides provisions for downloading a file of size around 900MB from it. However, while testing the application I found out that its not possible to pause the downloads and resume them later on. Could someone help me? Is it an apache property I must change?

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  • how to apply the center of image view for another image view center

    - by maddy
    hi, I am developing image redraw app. i know the center of one image view which is having scaling property. i.e it can change it frame and center . that to be applied to another view center. when i apply center to newly formed Image view it giving wrong center because of the previous image view is having scaling property. so how can i get exact center to my new image view from previous imageview

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  • Changing the name of a folder in php

    - by SpikETidE
    Hi everyone... All are aware of the rename function in php .... But is there a way to just change the name of a folder using php...? Or copying the whole folder to a new place with the intended name is the only way..? Thanks for your answers...

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  • Helicon ISAPI_REWRITE for masking folder

    - by Brian
    Hello, I would like to use the Helicon ISAPI_REWRITE module to rewrite a url: 123.45.67.89/folder to www.site.com I need to mask the IP/folder due to an IIS structure change. The reason why I don't want to get into, but it's valid based on the setup. Any help would be appreciated. Thanks.

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  • Android Nfc Sample Demo - reads only fake information from the Tag

    - by ubiquitous
    I just installed the Nfc Demo from google, but it doesn´t read the information from the Tag.- It just provides some fakeTag information. Has anybody an idea, where I can change the sample to read from the nfc Tag? Or has somebody a working nfc demo for the nexus? If we could bring a nfc demo to work, many people would have the possibility to develop a nfc demo on their own. Best regards Alexander

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  • MIgrations ans Rspec

    - by pablorc
    Hi, I'm developing a Rails application with Rspec for unit testing. Weeks ago, Rspec used to migrate the database to the last version automatically when executing 'rake spec', but now it doesn't do it automatically, I have to implement everything for myself. This happens in test environment, because my development data doesn't desappear. Is my fault? I didn't change anything, I think :) Thanks in advance.

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  • Where to find good examples or Templates for Configuration Management Plans?

    - by Geo
    Documentation is not the favorite area of a developer but an important area to fulfill if you want to have standards in the organization. We are trying to put together a new Configuratio Mgmt Plan to setup Change Controls, Backups strategies and other fun things, like the process from development, staging to production. I will like to have your opinions on good examples or probably a good start for CMP process.

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  • sIFR selected text background

    - by elon
    It seems to me that sIFRed text when selected allways have black background. My site design is dark (mostly black). So when use select sIFRed text it looks like nothing happens, it is selected but no one can see that cause both site and selected text background are black. Normal text have white or some kind of dark-green color depending on font color. How to change color of selected text background?

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  • Silverlight 3 oob window border

    - by Ali Shafai
    I was wondering if I can customise the look and feel of the OOB window of my SL app? I want it to look different than the standard windows frame (maybe at least change the visible buttons like minimise or maximise...) thanks

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  • How To Make iPhone App For Multiple Firmwares

    - by Dyldo42
    With iOS4 coming out soon, I have already planned to include an iAd in a future update of an app of mine. I assume that this will make my app unusable for anyone on a firmware lower than 4.0. Is there a way to change that variables and the .xib file based on the user's firmware? Cheers.

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  • throws SecurityException when signing with the default debug keystore

    - by Omer
    I am receiving a SecurityException since yesterday when I launch the service using signature protection level for permission with the default debug keystore. The strange thing is I wasn't receiving this error before yesterday and I didn't make any security related change. On the other hand, my own keystore using for releases is still working good. Related AndroidManifest.xml part: <permission android:name="com.my.app.privateservices" android:protectionLevel="signature" /> <service android:name=".MyService" android:permission="com.my.app.privateservices" />

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  • Append SQL table name with today's date

    - by Ricardo Deano
    Hello all. I understand that I can change a sql table using the follow sp: EXEC sp_rename 'customers', 'custs' How would I go about appending this so that the new table has today's date as a suffix? I've attempt variations on the below theme with little success!! EXEC sp_rename 'customers', 'customers +(CONVERT(VARCHAR(8),GETDATE(),3))' Any help greatly appreciated.

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  • #1130 - Host ‘localhost’ is not allowed to connect to this MySQL server

    - by Raph
    I accidently changed the "host" value for the root user inside of the user table for mysql. I need to change it back to localhost because I changed it to arancillary2125 (my other machines DNS name) but I cannot access mysql (from PHPMYADMIN or command prompt) due to "localhost" not having permissions anymore. I am running windows XP // apache // I have tried the following solutions but they didn't work: http://serverfault.com/questions/92870/1130-host-localhost-is-not-allowed-to-connect-to-this-mysql-server

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  • Add dynamic URL (or button) to each node in Drupal

    - by Bryan Folds
    I've used CCK to create a 'Travel Offer' content-type which basically just lists the details for a travel package. My question is how to have a button or link on each node (when the user views it) that will link to a url that includes the title of the current node (eg: example.com/requestQuote/Title_Of_This_Node). I haven't implemented my system yet so I am free to change the content-type to include a button field or something like that...

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