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InitAlpha() --avoid crash if empty/invalid

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Randalphwa 2024-01-27 11:51:33 -08:00
parent ac3cea5bcd
commit 994bc961e7
1 changed files with 3 additions and 0 deletions
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3
src/common/image.cpp
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@ -2185,6 +2185,9 @@ unsigned char *wxImage::GetAlpha() const
void wxImage::InitAlpha()
{
if (!IsOk())
return;
wxCHECK_RET( !HasAlpha(), wxT("image already has an alpha channel") );
// initialize memory for alpha channel