Bug 3868 - Could not set X locale modifiers
Summary: Could not set X locale modifiers
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: 2.10.x
Hardware: PC Linux
: Lowest normal
Target Milestone: Community
Assignee: Bugzilla
Depends on:
Reported: 2012-03-13 04:53 UTC by dglassey
Modified: 2017-09-01 11:56 UTC (History)
3 users (show)

Tags: mono-community
Is this bug a regression?: ---
Last known good build:

XSetLocaleModifiers returns a char* not a bool (1.38 KB, patch)
2012-03-13 04:53 UTC, dglassey
change dispose to destructor (1.15 KB, patch)
2012-03-13 04:54 UTC, dglassey
retry SetupXIM (2.16 KB, patch)
2012-03-13 04:55 UTC, dglassey

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Description dglassey 2012-03-13 04:53:34 UTC
Created attachment 1504 [details]
XSetLocaleModifiers returns a char* not a bool

Sometimes when a form with a text control is created this message appears on the console. Once this happens it is not possible to type into the control with an input method e.g. ibus.

See Novell bug 436000 https://bugzilla.novell.com/show_bug.cgi?id=436000 for a simple test program that shows the problem when run repeatedly - it isn't consistent enough for a proper test case. And more issues that may come from the same problem.

Looking at the man page for XSetLocaleModifiers it returns a char *. But the mono code in System.Windows.Forms/X11Keyboard.cs has it returning a bool.

patch 1 changes it to return an IntPtr

Another issue raised in 436000 is that the X11Keyboard Dispose is never called.
patch 2 changes it to a destructor since it clears up unmanaged X things.

patch 3 is less important and retries SetupXIM later if it fails because of XSetLocaleModifiers
Comment 1 dglassey 2012-03-13 04:54:56 UTC
Created attachment 1505 [details]
change dispose to destructor
Comment 2 dglassey 2012-03-13 04:55:28 UTC
Created attachment 1506 [details]
retry SetupXIM