MakeTransparent on Graphics doesn't work

TinyCLR OS
1

I am trying to use MakeTransparent(Color.Yellow) and draw a bitmap with a yellow background with a black arrow on with Graphics.DrawImage but it still renders the yellow.

How to get this to work?

2

The color has to match exactly

3

I think you have similar to this issue, if color matched exactly.

Color needs to be 0x00YELLOW (alpha 00)

MakeTransparent not seeming to do anything - TinyCLR OS - GHI Electronics’ Forums

4

You can’t use the Color data type, you have to get the RGB values and make a new Color with those RGB values and an alpha of 0

1 Like
5

Thanks you , this works perfectly

1 Like