I don't know if this is a well known hack, but I've found a work around that speeds up window resizing in Carbon apps. I used this hack in one of my apps, and window resizing is as fast as in any Cocoa app (if not faster)... before, it was so slow that I thought it wasn't working (which is why I came up with the hack in the first place).
The culpit behind slow window resizing is the GrowWindow() function.
The solution is to simply write your own GrowWindow() function, that may look something like this:
void myGrowWindow( WindowRef window){
Point pt;
int h,w;
SelectWindow(window);
while (Button()){
GetMouse(&pt);
h=pt.v; // calculate new height
w=pt.h; // calculate new width
SizeWindow(window,w,h,true);
UpdateWindowContents( window ); //redraw contents
}
}
AFAIK the above function (or something similar to it) works identical to GrowWindow, except much faster. I haven't tried this in OS 9 (my app is OS X only) but it should work, and might even give you live window resizing...
It's a simple work around, and I'm sure other people have thought of it. But if you haven't, well, now you know.
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