[Bug 24522] New: CreateCompatibleDC( NULL ) crash
http://bugs.winehq.org/show_bug.cgi?id=24522 Summary: CreateCompatibleDC( NULL ) crash Product: Wine Version: 1.2 Platform: x86 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: gdi32 AssignedTo: wine-bugs(a)winehq.org ReportedBy: milasudril(a)gmail.com Created an attachment (id=30955) --> (http://bugs.winehq.org/attachment.cgi?id=30955) Backtrace When creating a DC compatible with the current screen wine crashes. To reproduce try this: #include <windows.h> int main() { HDC dc=CreateCompatibleDC(NULL); DeleteDC(dc); } It is supposed to create a DC compatible with the current screen. See http://msdn.microsoft.com/en-us/library/dd183489%28VS.85%29.aspx -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=24522 Jeff Zaroyko <jeffz(a)jeffz.name> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |download, testcase --- Comment #1 from Jeff Zaroyko <jeffz(a)jeffz.name> 2010-09-26 04:02:27 CDT --- Which application depends on this? -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=24522 --- Comment #2 from milasudril(a)gmail.com 2010-09-26 05:09:38 CDT --- (In reply to comment #1)
Which application depends on this?
The posted one :-) Well, this technique can be used when you want to draw to a bitmap with GDI functions in an application that does not have a window for example rendering graphics to a high resolution bitmap. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=24522 --- Comment #3 from Jeff Zaroyko <jeffz(a)jeffz.name> 2010-09-26 05:41:24 CDT --- Yes, but is there a real world application which depends on this behavior which you have encountered? If so, it's nicer to mention the name in the bug title to show which application will be fixed. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=24522 --- Comment #4 from milasudril(a)gmail.com 2010-09-26 06:18:33 CDT --- (In reply to comment #3)
Yes, but is there a real world application which depends on this behavior which you have encountered? If so, it's nicer to mention the name in the bug title to show which application will be fixed.
It appeared when I tried to use a self-made plotter that uses GDI to draw text on a bitmap. It is a class that can draw the graph of a function in a coordinate system. A Windows API guru would know if CreateCompatibleDC(NULL) is unconventional or not. That is the question. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=24522 --- Comment #5 from Alexandre Julliard <julliard(a)winehq.org> 2010-09-26 16:37:22 CDT --- CreateCompatibleDC(NULL) is OK, and works fine. It's used in many places in the Wine code. The problem is that a tiny sample app like your example doesn't import user32, which is thus not initialized properly. It's arguably a bug, but not something that's going to happen with any real app. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=24522 Alexandre Julliard <julliard(a)winehq.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE --- Comment #6 from Alexandre Julliard <julliard(a)winehq.org> 2010-09-26 16:40:38 CDT --- Duplicate. *** This bug has been marked as a duplicate of bug 17929 *** -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
http://bugs.winehq.org/show_bug.cgi?id=24522 Dmitry Timoshkov <dmitry(a)codeweavers.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED --- Comment #7 from Dmitry Timoshkov <dmitry(a)codeweavers.com> 2010-09-27 04:01:17 CDT --- Closing duplicate. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.
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