I first loaded one bitmap into a DDSurface,set it to a rect and blitted it from the backbuffer to the primary surface and everything was ok. Then i loaded a second bitmap(same size etc) in a different DDSurface, set it to different rect and the bitmaps were then moving really weird, like trembling,(i dont know how to describe it.Anyway they were not normal). Note that i use a variable (int count)like this "count = GetTickCount();" at the start of the loop and "while(GetTickCount() - count < 33);"at the end (although i tried changing number 33 nothing changed). please S M P a y r v o e j e c t

maybe your source RECT and dest RECT sizes don't match in size? Try changing them and see what happens.

Edit: Oh, I think the problem might be that you're using source RECT instead of dest rect and vice versa when you call blt().

That happened to me

[edited by - Zeraan on September 15, 2002 8:03:58 PM]

It''s a pretty bad idea to store GetTickCount() in an int!
GetTickCount() returns a 32-bit value that represents the number of milliseconds that has passed since the computer was started. That means that if you mashine has run more that 32 seconds, you''re in trouble!