[Mono-bugs] [Bug 80552][Nor] Changed - [WIN] Font.ToLogFont leaks GDI objects

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Fri Jan 19 10:43:54 EST 2007

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Changed by sebastien at ximian.com.


--- shadow/80552	2007-01-19 10:30:43.000000000 -0500
+++ shadow/80552.tmp.25490	2007-01-19 10:43:54.000000000 -0500
@@ -1,23 +1,23 @@
 Bug#: 80552
 Product: Mono: Class Libraries
 Version: 1.2
 OS: Windows XP
 OS Details: 
-Status: NEW   
+Status: ASSIGNED   
 Severity: Unknown
 Priority: Normal
 Component: Sys.Drawing.
 AssignedTo: sebastien at ximian.com                            
 ReportedBy: monkey at jpobst.com               
 QAContact: mono-bugs at ximian.com
 TargetMilestone: ---
-Summary: [Windows] Font.ToHfont leaks GDI objects
+Summary: [WIN] Font.ToLogFont leaks GDI objects
 Calling Font.ToHfont seems to leak a GDI object every time it is called.
 Running the attached case on WinMono reports ~2030 GDI objects in use.
 Running on MS .Net reports ~30 GDI objects in use.
@@ -56,6 +56,16 @@
 ------- Additional Comments From sebastien at ximian.com  2007-01-19 10:30 -------
 Hmm... can't duplicate yesterday's results :-( ToHFont returns a
 different handle each time.
 note to self: I should have fixed it yesterday ;-)
+------- Additional Comments From sebastien at ximian.com  2007-01-19 10:43 -------
+The leak problem comes from ToLogFont(object), which is one of the
+worse API method in SD.
+If I cache the LOGFONT then the number of GDI objects stops at 40. I
+commited this part in r71324 (I don't trust tomorrow results ;-) and
+will look into ToLogFont (summary updated).
+Thanks for the sample!

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