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Null check in PremultiplyBitmap()

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Blind attempt to eliminate a crash which seems to occur when PremultiplyBitmap() is called after LoadImage() fails.
I'm hoping this might fix the issue reported here: https://github.com/Open-Shell/Open-Shell-Menu/issues/400
This commit is contained in:
rkagerer
2020-07-12 10:33:45 -07:00
committed by ge0rdi
parent fcf95a3ea6
commit 473f7e1445
1 changed files with 1 additions and 0 deletions
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Src/Lib/ResourceHelper.cpp
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@@ -332,6 +332,7 @@ HBITMAP BitmapFromIcon( HICON hIcon, int iconSize, unsigned int **pBits, bool bD
// Premultiplies a DIB section by the alpha channel and a given color // Premultiplies a DIB section by the alpha channel and a given color
void PremultiplyBitmap( HBITMAP hBitmap, COLORREF rgb ) void PremultiplyBitmap( HBITMAP hBitmap, COLORREF rgb )
{ {
if (hBitmap == NULL) return;
BITMAP info; BITMAP info;
GetObject(hBitmap,sizeof(info),&info); GetObject(hBitmap,sizeof(info),&info);
int n=info.bmWidth*info.bmHeight; int n=info.bmWidth*info.bmHeight;