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function BlendToOpaque(bgColor, fgColor: TColor32): TColor32;
A callback function that can be passed as a parameter to the TImage32.CopyBlend method. This function blends a semi-transparent image onto an opaque background. (If the background image also has some transparency, then the BlendToAlpha callback function should be used.)
uses Image32, Image32_PNG; ... img := TImage32.Create; img.LoadFromFile('fruit.png'); img2 := TImage32.Create; img2.LoadFromFile('beetle.png'); img2.Resize(20,20); img.CopyBlend(img2, img2.Bounds, Rect(100,100,120,120), BlendToOpaque); img.SaveToFile('beetle_on_fruit.png'); img.Free; img2.Free;
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TImage32.CopyBlend, BlendToAlpha
Copyright ©2019 Angus Johnson - Image32 ver. 1.54 - Documentation last updated on 7-November-2020