I have PNG and need to know if it has an alpha (or if the alpha is completely white)? How can I accomplish this in vb.net code.
Use System.Drawing.Image.Flags:
Dim HasAlpha As Boolean
Using I = System.Drawing.Image.FromFile("c: est.png")
HasAlpha = (I.Flags And System.Drawing.Imaging.ImageFlags.HasAlpha) = System.Drawing.Imaging.ImageFlags.HasAlpha
End Using
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