[Mono-bugs] [Bug 78285][Nor] Changed - Graphics.DrawIcon memory
leak ?
bugzilla-daemon at bugzilla.ximian.com
bugzilla-daemon at bugzilla.ximian.com
Thu May 4 11:57:59 EDT 2006
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Changed by sebastien at ximian.com.
http://bugzilla.ximian.com/show_bug.cgi?id=78285
--- shadow/78285 2006-05-04 05:26:18.000000000 -0400
+++ shadow/78285.tmp.20237 2006-05-04 11:57:59.000000000 -0400
@@ -1,14 +1,14 @@
Bug#: 78285
Product: Mono: Class Libraries
Version: unspecified
-OS:
+OS: unknown
OS Details:
-Status: NEW
+Status: NEEDINFO
Resolution:
-Severity:
+Severity: Unknown
Priority: Normal
Component: Sys.Drawing.
AssignedTo: peter at novonyx.com
ReportedBy: xenomorph2 at onlinehome.de
QAContact: mono-bugs at ximian.com
TargetMilestone: ---
@@ -19,6 +19,19 @@
Graphics.DrawIcon creates a bitmap for an icon with Icon.ToBitmap() but it
doesn't dispose the bitmap (Icon.ToBitmap always creates a new bitmap).
Though, for performance reasons, it would be better to keep a reference of
the bitmap in Icon and only create a new bitmap if the bitmap is null.
Icons are not that big so a few more KB shouldn't matter...
+
+------- Additional Comments From sebastien at ximian.com 2006-05-04 11:57 -------
+I agreed the bitmaps should be disposed (and it's fixed in SVN r60264).
+
+But anyway the GC will (at some point) finalize the object and reclaim
+the memory - so it *shouldn't* be leaking unless there a bug elsewhere
+else. Do you have some data that show a leak ? (and not just a
+temporary retention)
+
+As for keeping a cached bitmap it could be done in Icon.ToBitmap.
+However we still must return a clone of that bitmap when asked (and
+not just a reference) as we don't know if the caller will call Dispose
+on it. Not sure if it's worth the extra code ?!?
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