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Mac Forum / Programming / CodeWarrior / May 2004SystemTask() replacement in Carbon
hello, I am porting my application from MacOS 9 to Carbon. I have a while loop that SystemTask() while the mouse button is held down. Since SystemTask() is not available in Carbon, is there another function more appropriate I should call in this loop so my application doesn't hog CPU resources?  SignatureVincent > hello, I am porting my application from MacOS 9 to Carbon. I have a > while loop that SystemTask() while the mouse button is held down. > > Since SystemTask() is not available in Carbon, is there another function > more appropriate I should call in this loop so my application doesn't > hog CPU resources? Yes. See "Tracking the mouse with TrackMouseLocation" http://developer.apple.com/documentation/Carbon/Conceptual/Carbon_Event_ Manager/Tasks/chapter_18_section_10.html HTH.. Milton Aupperle > hello, I am porting my application from MacOS 9 to Carbon. I have a > while loop that SystemTask() while the mouse button is held down. > > Since SystemTask() is not available in Carbon, is there another function > more appropriate I should call in this loop so my application doesn't > hog CPU resources? Reimplement your code to use mouse tracking events. See TrackMouseLocation and TrackMouseRegion. hth meeroh SignatureIf this message helped you, consider buying an item from my wish list: <http://web.meeroh.org/wishlist> > hello, I am porting my application from MacOS 9 to Carbon. I have a > while loop that SystemTask() while the mouse button is held down. > > Since SystemTask() is not available in Carbon, is there another function > more appropriate I should call in this loop so my application doesn't > hog CPU resources? If you use WaitNextEvent, which is in Carbon[1], then SystemTask is not needed at all. (Unless you wish to rewrite around Carbon Events[2]) Toby [1] http://developer.apple.com/documentation/Carbon/Reference/Event_Manager/event_mg r_ref/function_group_5.html#//apple_ref/c/func/WaitNextEvent [2] http://developer.apple.com/documentation/Carbon/Conceptual/Carbon_Event_Manager/ Concept/chapter_17_section_4.html |
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