투명 Image Draw : .NET Framework & .NET Compact Framework

1) Create the Image attribute
System.Drawing.Imaging.ImageAttributes attrib = new System.Drawing.Imaging.ImageAttributes();

2) Set the transparency color key (black for the example)
attrib.SetColorKey(Color.Black, Color.Black);

: 투명으로 지정될 Color를 정해준다. 

3) Draw the image using the image attribute
e.Graphics.DrawImage(backgroundIm, destRect, 0, 0, backgroundIm.Width, backgroundIm.Height, GraphicsUnit.Pixel, attrib);

 

And here is the result with a light green background!