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fix for uninitialized alpha being used to create mask, fixes wxMemoryDC with 32-bit bitmaps

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57052 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Paul Cornett 2008-12-01 02:03:38 +00:00
parent 74dda7b23b
commit 150a349a4f
1 changed files with 3 additions and 0 deletions
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3
src/gtk/bitmap.cpp
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@ -285,6 +285,9 @@ bool wxBitmap::Create( int width, int height, int depth )
if (depth == 32) if (depth == 32)
{ {
SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 32); SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 32);
// must initialize alpha, otherwise GetPixmap()
// will create a mask out of garbage
gdk_pixbuf_fill(M_BMPDATA->m_pixbuf, 0x000000ff);
} else } else
if (depth == 24) if (depth == 24)
{ {