I have created a function to do screen captures on OSX. Since I'm new to OSX, Xcode and the SDKs on OSX, I've asked for a code review of the screen capture function here:
http://codereview.stackexchange.com/questions/32466/reviewing-c-function-which-captures-the-screen The function is a bit messy since it's a prototype. I would be very happy if you could tell me how I can optimize the code I've posted in the link above. The screen capture function is being called every 100ms approximately and these frequent function calls seems to slow everything else down. After my program has run for a little while, the desktop and mouse pointer becomes very laggy/non-responsive. The mouse pointer icon periodically changes to that spinning circle (equivalent to the hour glass on Windows). Opening other apps while my program is running is also a problem. After my program has run for 30 seconds or so, opening up a browser takes more than a minute. Eventually everything just hangs and I have to reboot. I'm wondering if it's the screen capture method itself (i.e. using the Core Graphics API) which isn't ideal for this type of application or if there's something in the screen capture code which is causing the above mentioned problems. If I comment out the code in the screen capture function and run my program, I don't get the same laggy behavior. So the bottleneck/problem definitely seems to have something to do with the way I capture the screen. Any suggestions, comments, questions etc. are highly appreciated. Thank you!! _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
