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Fixed a Windows GDI leak when testing alpha blending capabilities, 

simplified code by removing an obsolete if clause.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7009 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Albrecht Schlosser 2010-01-15 14:29:48 +00:00
parent 3f2a7c829d
commit 21235502c3
2 changed files with 5 additions and 5 deletions
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1
CHANGES
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@ -1,5 +1,6 @@
CHANGES IN FLTK 1.3.0
- Fixed a Windows GDI leak when testing alpha blending capabilities
- Fixed a name conflict with new (VC 2008 Express) winsock2.h
versions and another conflict that produced compile errors
with VC 2008 (STR #2301).

9
src/Fl_Double_Window.cxx
View File

@ -100,10 +100,9 @@ char fl_can_do_alpha_blending() {
fl_alpha_blend = (fl_alpha_blend_func)GetProcAddress(hMod, "AlphaBlend");
// give up if we can't find it (Win95)
if (!fl_alpha_blend) return 0;
// we have the call, but does our display support alpha blending?
HDC dc = 0L;//fl_gc;
// get the current or the desktop's device context
if (!dc) dc = GetDC(0L);
// we have the call, but does our display support alpha blending?
// get the desktop's device context
HDC dc = GetDC(0L);
if (!dc) return 0;
// check the device capabilities flags. However GetDeviceCaps
// does not return anything useful, so we have to do it manually:
@ -117,8 +116,8 @@ char fl_can_do_alpha_blending() {
RestoreDC(new_gc, save);
DeleteDC(new_gc);
DeleteObject(bm);
ReleaseDC(0L, dc);
if (!fl_gc) ReleaseDC(0L, dc);
if (alpha_ok) can_do = 1;
return can_do;
}