acmfiu@serss0.fiu.edu (ACMFIU) (02/16/91)
i've setup a window on the screen and would like to update the window region (visible region) by first drawing what i need to an off-screen port (i don't know if i mean grafport, region, etc) and then copy that to the GrafPort of the window. i can't figure out how to do this. all i'm drawing to the port is character data. how can i tell quickdraw to draw off-screen (which i want because it's faster) and then copy it to my windows GrafPort? albert
toddpw@nntp-server.caltech.edu (Todd P. Whitesel) (02/16/91)
acmfiu@serss0.fiu.edu (ACMFIU) writes: > how can i tell quickdraw to draw off-screen > and then copy it to my windows GrafPort? Use GetPortLoc and SetPortLoc to retrieve and set the LocInfo record in the GrafPort. LocInfo records are described on page 16-13 of toolbox ref 2. Good luck, and let us know if you discover anything -- enhancing quickdraw for larger screens has a lot to do with the LocInfo records and how quickdraw handles them. Todd Whitesel toddpw @ tybalt.caltech.edu