How can i Transparent Image in Picture Box

[RajKumarJain]

How can i transparent any image placed on picture box by any specific color.

 

[waynespangler]

Use color matrix and image attribute.
http://www.codeproject.com/useritems/Alphablend__using_matrix.asp

 

[JohnH]

waynespangler, can you do that for only one specific color with ColorMatrix applied to a multicolor image? Show how.

What can be used is MakeTransparent method of Bitmap class for one specific color, or SetColorKey of ImageAttributes class for a range of colors. Here's one example:

Dim bmp As New Bitmap(My.Resources.lite1)
bmp.MakeTransparent(Color.Blue)
PictureBox1.Image = bmp