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Bliter speeds up when key pressed!?

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Hi, I''m n the end of chapter ten in Windows Game Programming fo Dummies and have just writen the program that bliters random parts of a bitmap to the screen. This is where I notised something strange, if I press a key (any) the program will speed up significantely. How can that be? The only code I have conserning the keys is a if case to check if escape is pressed incase the program quits. But even if I coment out those lines I get the same "phenomen". Anyone knows why it might be doing this?

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Are you updateing the screen in the windows messaging callback function, if so its because keypresses are messages.

See Move bmp thread in this section.


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