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• NHibernate Many-To-One on Joined Sublcass with Filter

  - by Nathan Roe

  I have a class setup that looks something like this: public abstract class Parent { public virtual bool IsDeleted { get; set; } } public class Child : Parent { } public class Other { public virtual ICollection<Child> Children { get; set; } } Child is mapped as a joined-subclass of Parent. Childen is mapped as a Many-To-One bag. The bag has a filter applied to it named SoftDeletableFilter. The filter mapping looks like: <filter-def name="SoftDeleteableFilter" condition="(IsDeleted = 0 or IsDeleted is null)" /> That problem is that when Other.Children is loaded the filter is being applied to the Child table and not the parent table. Is there any way to tell NHibernate to apply the filter to the parent class?

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• Use filter(), but work with both results

  - by Tomalak

  In jQuery, filter() reduces your result to those elements that fulfill a certain condition. This splits the list in two parts. Working with the "good half" of the elements is easy: $("some selector").filter(function() { // determine result... return result; }).each( /* do something */ ); But how can I work with the "other half" of my elements, too - but without doing the equivalent of this: $("some selector").filter(function() { // determine result... return !result; }).each( /* do something else */ ); Basically, I'd like to feed two separate /* do something */ parts to a single filter. One for those that match, and one for the others - without having to filter twice. Am I missing a jQuery function that does this? P.S.: I guess I could do: $("some selector").each(function() { // determine result... if (result) /* do something */ else /* do something else */ }); But I was hoping for something nicer.

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• BindingSource.Filter does not work with affected rows in DataSet

  - by Artru

  I created DataGridView in WinForms App. Then at the initializing create DataSet and fill it with some data, bind to DataGridView . I added textBox as a filter. `myBindingSource = new BindingSource(); myBindingSource.DataSource = ds; myBindingSource.DataMember = dt.TableName; dataGridView1.DataSource = myBindingSource;` string strCmd = "some filter query"; myBindingSource.Filter = strCmd; It works fine with filtering. If I add or delete any row to the DataSet then new data will occur in dridview, BUT filter will not work with new data. As I found on the forums there is a Table cash, which .NET uses for filter and I want to refresh it. How can I do it?

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• jQuery: use filter(), but work with both results

  - by Tomalak

  In jQuery, filter() reduces your result to those elements that fulfill a certain condition. This splits the list in two parts. Working with the "good half" of the elements is easy: $("some selector").filter(function() { // determine result... return result; }).each( /* do something */ ); But how can I work with the "other half" of my elements, too - but without doing the equivalent of this: $("some selector").filter(function() { // determine result... return !result; }).each( /* do something */ ); Basically, I'd like to feed two separate /* do something */ parts to a single filter. One for those that match, and one for the others - without having to select and filter twice.

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• jQuery: use Use filter(), but work with both results

  - by Tomalak

  In jQuery, filter() reduces your result to those elements that fulfill a certain condition. This splits the list in two parts. Working with the "good half" of the elements is easy: $("some selector").filter(function() { // determine result... return result; }).each( /* do something */ ); But how can I work with the "other half" of my elements, too - but without doing the equivalent of this: $("some selector").filter(function() { // determine result... return !result; }).each( /* do something else */ ); Basically, I'd like to feed two separate /* do something */ parts to a single filter. One for those that match, and one for the others - without having to filter twice. Am I missing a jQuery function that does this? P.S.: I guess I could do: $("some selector").each(function() { // determine result... if (result) /* do something */ else /* do something else */ }); But I was hoping for something nicer.

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• [Android] Returning to a ListView with a text filter

  - by sosiouxme

  I enabled text filtering on my ListView in the expected way; adding android:textFilterEnabled=”true” in resource definition and (as I'm using a SimpleCursorAdapter) setting a FilterQueryProvider that provides a filtered cursor like so: public Cursor runQuery(CharSequence constraint) { Cursor cur = mDba.fetchTrackers(mCurrentGroupId, constraint.toString()); startManagingCursor(cur); return cur; } My question is this: once the user selects a list item, goes off to another activity, and returns to this one, how can I control the state of the filter previously applied? What I'm seeing right now is that when I return to the activity, the cursor being used is the unfiltered one set on the filter at creation, but the filter text they typed is still shown (and typing keys causes the filter to be applied). What I'd like to do is either clear the filter, or keep the filtered cursor that the activity was left with.

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• Is it possible to use wildcards within J2EE - fitlers?

  - by Sergio del Amo

  I would like to apply a filter to severl url endings. The next configuraiton seems to work. <filter> <filter-name>LanguageFilter</filter-name> <filter-class>filters.LanguageFilter</filter-class> </filter> <filter-mapping> <filter-name>LanguageFilter</filter-name> <url-pattern>*.do</url-pattern> </filter-mapping> <filter-mapping> <filter-name>LanguageFilter</filter-name> <url-pattern>*.xml</url-pattern> </filter-mapping> Originally I asked if it was possible to use wildcards such as: <url-pattern>*.do|*.xml</url-pattern> But it does not seem to be possible.

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• git filter-branch chmod

  - by Evan Purkhiser

  I accidental had my umask set incorrectly for the past few months and somehow didn't notice. One of my git repositories has many files marked as executable that should be just 644. This repo has one main master branch, and about 4 private feature branches (that I keep rebased on top of the master). I've corrected the files in my master branch by running find -type f -exec chmod 644 {} \; and committing the changes. I then rebased my feature branches onto master. The problem is there are newly created files in the feature branches that are only in that branch, so they weren't corrected by my massive chmod commit. I didn't want to create a new commit for each feature branch that does the same thing as the commit I made on master. So I decided it would be best to go back through to each commit where a file was made and set the permissions. This is what I tried: git filter-branch -f --tree-filter 'chmod 644 `git show --diff-filter=ACR --pretty="format:" --name-only $GIT_COMMIT`; git add .' master.. It looked like this worked, but upon further inspection I noticed that the every commit after a commit containing a new file with the proper permissions of 644 would actually revert the change with something like: diff --git a b old mode 100644 new mode 100755 I can't for the life of me figure out why this is happening. I think I must be mis-understanding how git filter-branch works. My Solution I've managed to fix my problem using this command: git filter-branch -f --tree-filter 'FILES="$FILES "`git show --diff-filter=ACMR --pretty="format:" --name-only $GIT_COMMIT`; chmod 644 $FILES; true' development.. I keep adding onto the FILES variable to ensure that in each commit any file created at some point has the proper mode. However, I'm still not sure I really understand why git tracks the file mode for each commit. I had though that since I had fixed the mode of the file when it was first created that it would stay that mode unless one of my other commits explicit changed it to something else. That did not appear to the be the case. The reason I thought that this would work is from my understanding of rebase. If I go back to HEAD~5 and change a line of code, that change is propagated through, it doesn't just get changed back in HEAD~4.

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• Sync database with filter using SyncOrchestrator with Sync Framework 2.0

  - by Flo

  Hi, I want to synchronize two SQL databases. But since one of the databases only requires a subset of the data I am looking for a filter option. Is there a possibility to add a Filter to the SyncOrchestrator or do I have to add the filter to the SyncProvider? According to this: http://social.microsoft.com/Forums/en-US/uklaunch2007ado.net/thread/35d4deb8-a861-4fe3-a395-d175e14c353f it is not possible to filter with the DbSyncProvider. Quote: "I understand your scenario, and the hebavior of the DbSyncProvider is due to the current limitation. DbSyncProvider is built on top of the Microsoft Sync Framework that can support filtering. Unfortunately, DbSyncProvider does not yet." But that post is quite old, maybe that has changed now. I am working with this example at the moment: http://msdn.microsoft.com/en-us/library/cc807255.aspx but I can't figure out how to add filtering here.

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• java Filter URL pattern specific to request params

  - by Rohit Desai

  Hi All, We have a situation where we want to use filter for URL's containing some specific request parameters. e.g htt://mydomain.com/?id=78&formtype=simple_form&....... htt://mydomain.com/?id=788&formtype=special_form&....... and so on , id are fetched at run time, I want configure filter in web.xml only if formtype=special_form. How should achieve the solution . Can filter be configure with regex patterns? Really appreciate your help on this. Thanks, Rohit

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• Breakpoints not working in Delphi 6 DirectShow source filter

  - by Robert Oschler

  I'm trying to debug my DirectShow source filter. I'm using Delphi Pro 6 on Windows XP along with the DSPACK component library. I'm using Skype as my host application, which I set in the Parameters option in the Run menu, for testing my source filter DLL (ax file extension). Skype runs fine and I see a stream of my OutputDebugString messages in the Event Viewer, but none of my breakpoints are ever hit. In my Project Settings I have optimizations off, stack frames on, debug DCUs on, Range Checking on, and Overflow checking on. Each time I modify my code and run a test I: Do a full build Unregister the DirectShow filter (regsvr32 /u) Register the DirectShow filter (regsvr32) Run Skype as my Host application from the IDE When an Exception occurs, the IDE does trap it and pops up an error dialog box with the option to view the assembler code in the CPU window. However none of my breakpoints are being hit. Can anyone tell me how to get breakpoints working? Thanks.

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• WPF: Bind/Apply Filter on Boolean Property

  - by Julian Lettner

  I want to apply a filter to a ListBox accordingly to the IsSelected property of a CheckBox. At the moment I have something like this. XAML <CheckBox Name="_filterCheckBox" Content="Filter list" Checked="ApplyFilterHandler"/> <ListBox ItemsSource="{Binding SomeItems}" /> CodeBehind public ObservableCollection<string> SomeItems { get; private set; } private void ApplyFilterHandler(object sender, RoutedEventArgs e) { if (_filterCheckBox.IsChecked.Value) CollectionViewSource.GetDefaultView(SomeItems).Filter += MyFilter; else CollectionViewSource.GetDefaultView(SomeItems).Filter -= MyFilter; } private bool MyFilter(object obj) { return ... } It works but this solution feels like the old-fashioned way (Windows Forms). Question: Is it possible to achieve this with Bindings / in XAML? Thanks for your time.

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• Using a Filter to serve a specific page?

  - by user246114

  Hi, I am using a class which implements Filter for my jsp stuff. It looks like this: public class MyFilter implements Filter { public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { request.getRequestDispatcher("mypage.jsp").forward(request, response); } } So the target, "mypage.jsp", is just sitting in my top-level directory. The filter works fine if I'm entering urls like: http://www.mysite.com/foo http://www.mysite.com/boo but if I enter a trailing slash, I'll get a 404: http://www.mysite.com/foo/ http://www.mysite.com/boo/ HTTP ERROR: 404 /foo/mypage.jsp RequestURI=/foo/mypage.jsp it seems if I enter the trailing slash, then the filter thinks I want it to look for mypage.jsp in subfolder foo or boo, but I really always want it to just find it at: http://www.mysite.com/mypage.jsp how can I do that? Thank you

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• DSP - Filter sweep effect

  - by Trap

  I'm implementing a 'filter sweep' effect (I don't know if it's called like that). What I do is basically create a low-pass filter and make it 'move' along a certain frequency range. To calculate the filter cut-off frequency at a given moment I use a user-provided linear function, which yields values between 0 and 1. My first attempt was to directly map the values returned by the linear function to the range of frequencies, as in cf = freqRange * lf(x). Although it worked ok it looked as if the sweep ran much faster when moving through low frequencies and then slowed down during its way to the high frequency zone. I'm not sure why is this but I guess it's something to do with human hearing perceiving changes in frequency in a non-linear manner. My next attempt was to move the filter's cut-off frequency in a logarithmic way. It works much better now but I still feel that the filter doesn't move at a constant perceived speed through the range of frequencies. How should I divide the frequency space to obtain a constant perceived sweep speed? Thanks in advance.

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• Redirecting the response from a filter throws an IllegalStateException

  - by Ritesh M Nayak

  I am writing a filter that will handle all authentication related tasks. My filter is a standard servlet filter as shown below @Override public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException { UserSession attribute = (UserSession)request.getSession().getAttribute("user_session_key"); if(attribute!=null && attribute.isValid()) { //proceed as usual, chain.doFilter(req, res); return; } else { //means the user is not authenticated, so we must redirect him/her to the login page ((HttpServletResponse)res).sendRedirect("loginpage"); return; } } But when I do this, I get an IllegalStateException thrown by Tomcat's ResponseFacade. How do I acheive this in a filter. I read in other SO threads that in TOmcat this is a problem as the response object is already commited. How do I get past this ?

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• Javscript filter vs map problem

  - by graham.reeds

  As a continuation of my min/max across an array of objects I was wondering about the performance comparisons of filter vs map. So I put together a test on the values in my code as was going to look at the results in FireBug. This is the code: var _vec = this.vec; min_x = Math.min.apply(Math, _vec.filter(function(el){ return el["x"]; })); min_y = Math.min.apply(Math, _vec.map(function(el){ return el["x"]; })); The mapped version returns the correct result. However the filtered version returns NaN. Breaking it out, stepping through and finally inspecting the results, it would appear that the inner function returns the x property of _vec but the actual array returned from filter is the unfiltered _vec. I believe my usage of filter is correct - can anyone else see my problem?

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• Equivalant of this gradient code in ie css filter

  - by Wiika

  Hi All, i need an equivalent or an alternative for this code in internet explorer using the filter method background: -moz-linear-gradient(center bottom , rgb(132, 133, 132) 0%, rgb(35, 35, 35) 49%, rgb(104, 104, 104) 100%) repeat scroll 0% 0% transparent; the most important thing in the code is the points ( 0% - 49% - 100% ) i believe that the filter method doesn't have points and doesn't accpect more than two parms for the colors , Is there a way to do it in filter or a javascript script for that ? Thanks.

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• javascript filter nested object based on key value

  - by murray3

  I wish to filter a nested javascript object by the value of the "step" key: var data = { "name": "Root", "step": 1, "id": "0.0", "children": [ { "name": "first level child 1", "id": "0.1", "step":2, "children": [ { "name": "second level child 1", "id": "0.1.1", "step": 3, "children": [ { "name": "third level child 1", "id": "0.1.1.1", "step": 4, "children": []}, { "name": "third level child 2", "id": "0.1.1.2", "step": 5, "children": []} ]}, ]} ] }; var subdata = data.children.filter(function (d) { return (d.step <= 2)}); This just returns the unmodified nested object, even if I put value of filter to 1. does .filter work on nested objects or do I need to roll my own function here, advise and correct code appreciated. cjm

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• I need help understanding how this jQuery filter function works, line-by-line, if possible

  - by user717236

  Here is the HTML: <div> <h3>text</h3> </div> <div> <h3>moretext</h3> </div> <div> <h3>123</h3> </div>?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Here is the JS: var rv1_wlength = $("div").filter(function() { return $(this).find("h3").filter(function () { return $(this).text() != "123"; }).length; }); var rv1_wolength = $("div").filter(function() { return $(this).find("h3").filter(function () { return $(this).text() != "123"; }); }); var rv2 = $("div").find("h3").filter(function() { return $(this).text() != "123"; }); alert(rv1_wlength.text()); // text // moretext alert(rv1_wolength.text()); // text // moretext // 123 alert(rv2.text());? // textmoretext I don't understand why the first two methods print the elements on each line, whereas the second method concatenates them. "rv2" is a jQuery object. Then, what are the first two (rv1_wlength and rv1_wolength)? Furthermore, I don't understand why the inclusion of the length property makes all the difference in filtering the elements. The second method does nothing, since it returns all the elements. The first method, with the only change being the addition of the length property, correctly filters the elements. I would very much like a line-by-line explanation. I would sincerely appreciate any feedback. Thank you.

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• Filter rule for SMS / text messages in exchange active sync (SMS sync)

  - by kynan

  Exchange server 2010 introduces SMS Sync (via exchange active sync), which works fine with my android device and the Samsung email app. However, all text messages are synced to my exchange inbox, which is a pain. I'd like to have them filtered to a specific folder. So far, I haven't figured out a useful filter rule for achieving that, since there seems to be no header indicating it's a text message. Has anyone managed to do that? Note that I'm not using Outlook as an email client, so I'm specifically looking for a server-side rule.

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• How to configure LAN IP Filter on Huawei E586 UMTS Modem

  - by Mose

  I need to prevent clients of an Huawei E586 UMTS to WiFi modem from downloading much data from specific servers eg. Windows update or OSX update. On the config page of the device there's an "LAN IP Filter" which seems pretty good but I can't figure out the right settings. The mask looks like this: The help pages states the following: My problem with this is, I want some wildcard for the local ip and port. In my opinion the help page can not be correct by "lan port: enter 80" because the source port is normally dynamic. I tried to set it up like stated there but as expected it doesn't work. As wildcards I tried * and "ALL" but nothing worked as it prevents me from saving settings with an "wrong value" error. Any suggestions? Thanks in advance!

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• Archiving mails with postfix: how to filter mails?

  - by Tronic

  i wanto to implement the following scenario: we use a postfix mailserver. to archive all old and new mails, i want to setup a second postfix on our fileserver and create a single mailbox "archive". then every mail gets forwarded as bcc to this mailbox automatically. now, i want to create different folders in a maildir structure and let the server move each mail to the right subfolder of the mailbox based on its sender or receiver. e.g. when we get a mail to one of our employees named "John Doe" at [email protected], the mail should be moved to "Inbox/John Doe Incoming". the same applies when john doe sends a mail, folder would be "Inbox/John Doe Outgoing". how can i implement this filter behaviour. i heard of Procmail and Maildrop. Which of the two would you prefer? Which is more easy to configure? Any out-of-box solutions here? thanks in advance!

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• Need to set up a proxy on Linksys E3200 to filter home internet

  - by Justin Amberson

  the fact that I have a Linksys E3200 may not be important. I can configure the router through the web interface, but I don't know the things I will be toggling are called. I already do simple port forwarding to access applications on my Mac remotely. So router admin is not something I technically need explained. I'm looking to running a proxy on my home computer, that filters all HTTP traffic that goes through my router. So if my daughter is on her iPad and accesses Safari, my Mac will be the judge of the validity of the request. I need something like NetNanny I guess, but local. Actually, anything that can just filter all port 80 traffic that runs locally, but maybe validates with a password? I truly truly hope this question falls within the bounds of Serverfault. I'm not a total internet newb but I'm at a loss for what to Google. If possible answer this question: Is there a webapp that can listen on port 80, and validate requests to port 80 with a password? If so, can I forward all traffic on port 80 to my Mac, to be re-routed to the user? Is this the same as a VPN? Thank you for your help. Justin

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• Error 404 after change filter in web.xml

  - by Falci

  I'm trying to add Spring Security to the project. After adding a block of code in web.xml, all url's give 404. What is wrong? It's a Maven project, Spring MVC, hibernate, postgres. (I do not know what information is relevant to describe the scenario) <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <!-- The definition of the Root Spring Container shared by all Servlets and Filters --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/root-context.xml</param-value> </context-param> <!-- Creates the Spring Container shared by all Servlets and Filters --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Processes application requests --> <servlet> <servlet-name>appServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>appServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- After insert this block, all URL's return 404 error --> <filter> <filter-name>springSecurityFilterChain</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <filter-mapping> <filter-name>springSecurityFilterChain</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app> UPDATE: Grave: Exception starting filter springSecurityFilterChain org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'springSecurityFilterChain' is defined at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:529) at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1094) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:276) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1079) at org.springframework.web.filter.DelegatingFilterProxy.initDelegate(DelegatingFilterProxy.java:217) at org.springframework.web.filter.DelegatingFilterProxy.initFilterBean(DelegatingFilterProxy.java:145) at org.springframework.web.filter.GenericFilterBean.init(GenericFilterBean.java:179) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:103) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1366) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1454) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:295) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1379) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1537) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1547) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1526) at java.lang.Thread.run(Thread.java:722)

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• Apply a Quartz filter while saving PDF under Mac OS X 10.6.3

  - by olpa

  Using Mac OS X API, I'm trying to save a PDF file with a Quartz filter applied, just like it is possible from the "Save As" dialog in the Preview application. So far I've written the following code (using Python and pyObjC, but it isn't important for me): -- filter-pdf.py: begin from Foundation import * from Quartz import * import objc page_rect = CGRectMake (0, 0, 612, 792) fdict = NSDictionary.dictionaryWithContentsOfFile_("/System/Library/Filters/Blue \ Tone.qfilter") in_pdf = CGPDFDocumentCreateWithProvider(CGDataProviderCreateWithFilename ("test .pdf")) url = CFURLCreateWithFileSystemPath(None, "test_out.pdf", kCFURLPOSIXPathStyle, False) c = CGPDFContextCreateWithURL(url, page_rect, fdict) np = CGPDFDocumentGetNumberOfPages(in_pdf) for ip in range (1, np+1): page = CGPDFDocumentGetPage(in_pdf, ip) r = CGPDFPageGetBoxRect(page, kCGPDFMediaBox) CGContextBeginPage(c, r) CGContextDrawPDFPage(c, page) CGContextEndPage(c) -- filter-pdf.py: end Unfortunalte, the filter "Blue Tone" isn't applied, the output PDF looks exactly as the input PDF. Question: what I missed? How to apply a filter? Well, the documentation doesn't promise that such way of creating and using "fdict" should cause that the filter is applied. But I just rewritten (as far as I can) sample code /Developer/Examples/Quartz/Python/filter-pdf.py, which was distributed with older versions of Mac (meanwhile, this code doesn't work too): ----- filter-pdf-old.py: begin from CoreGraphics import * import sys, os, math, getopt, string def usage (): print ''' usage: python filter-pdf.py FILTER INPUT-PDF OUTPUT-PDF Apply a ColorSync Filter to a PDF document. ''' def main (): page_rect = CGRectMake (0, 0, 612, 792) try: opts,args = getopt.getopt (sys.argv[1:], '', []) except getopt.GetoptError: usage () sys.exit (1) if len (args) != 3: usage () sys.exit (1) filter = CGContextFilterCreateDictionary (args[0]) if not filter: print 'Unable to create context filter' sys.exit (1) pdf = CGPDFDocumentCreateWithProvider (CGDataProviderCreateWithFilename (args[1])) if not pdf: print 'Unable to open input file' sys.exit (1) c = CGPDFContextCreateWithFilename (args[2], page_rect, filter) if not c: print 'Unable to create output context' sys.exit (1) for p in range (1, pdf.getNumberOfPages () + 1): #r = pdf.getMediaBox (p) r = pdf.getPage(p).getBoxRect(p) c.beginPage (r) c.drawPDFDocument (r, pdf, p) c.endPage () c.finish () if __name__ == '__main__': main () ----- filter-pdf-old.py: end

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