Check if bitmap pixel data contains alpha information.
While reading this topic Image.GetFlags method (the topic was written in C language) , I came with a solution to check if the bitmap or image pixel data contains alpha information, In Dot Net to gets flags that indicate certain attributes of an Image , simply check the value of Flags property which will return a bitwise combination of ImageFlags. The following Function shows how to check bitmap alpha information. Code: Public Shared Function IsHasAlpha(bmp As Bitmap) As Boolean Return bmp IsNot Nothing AndAlso (bmp.Flags And Imaging.ImageFlags.HasAlpha) > Imaging.ImageFlags.None End Function Usage: 1 - Define a bitmap. 2 - Pass the bitmap value to the above function, and if the image has alpha information the function shall returned True If IsHasAlpha(bmp) Then ' Do something End If References: GetFlags Method I...