RawImage lazarus / 39-Graphics ---------------------------------------------------------------------- Mando · 2016-01-18 09:35 HI all: I want to perform some transformations to a a bitmap. I createa procedure thar receives two bitmaps (TBITMAP), one is the source and the other the result. I use RawImage for fast pixel access. I read that is the fastest way. I read data from source image and write to the destination image. My problem is this: The image in destination bitmap doesn't refresh correctly if I don't do a canvas.textout call o save the image to a file. Any suggestions?? Thanks in avance. Regards. ---------------------------------------------------------------------- engkin · 2016-01-18 15:54 Quote from: Mando on January 18, 2016, 10:35:17 amMy problem is this: The image in destination bitmap doesn't refresh correctly if I don't do a canvas.textout call o save the image to a file. You are using Windows, right? If so, I believe the problem is related to this thread, and this bug report mentioned in its last post.