How do I add a shadow on top of a bimap and darken the bitmap underneath? The shadow is also a bitmap.

If I draw the shadow on top of the first bitmap with transparency it lightens the image underneath if the areas are darker than the shadow.

I know about alpha blending and transparency, but how do I "Darken only"?

Hi Just Joe,

Perhaps you can take a look at the following article with a sample in code project, which introduces how to draw transparent drop shadow by using PNG pictures.

Transparent drop shadow in C# (GDI+)

Regards,

Xun

You can do this very easy in Photoshop CS. Perhaps you should do that then add the bitmap.

It's got to be at run-time.

Hi Just Joe,

Perhaps you can take a look at the following article with a sample in code project, which introduces how to draw transparent drop shadow by using PNG pictures.

Transparent drop shadow in C# (GDI+)

Regards,

Xun

Hey Xun,

Cool, I will add that to my list of UI stuff...