How do I set the alpha channel of a GDI bitmap to 255?

Most GDI operations will destroy the alpha channel, because GDI was invented back in the days of monochrome and CGA, where you had one, maybe two bits per pixel, and the paper introducing the concept of an alpha channel wouldn’t be published for another year. The post How do I set the alpha channel of a GDI bitmap to 255? appeared first on The Old New Thing....

Submit