Thanks Nick,
I tried creating a RunLoop, that runs for 10 seconds, but I still had no
joy. I guess I'm still making beginner mistakes. Any ideas from the code
below, which now has a RunLoop?
#import <Foundation/Foundation.h>
#import <Cocoa/Cocoa.h>
void MyScreenRefreshCallback (CGRectCount count, const CGRect * rectArray,
void * userParameter){
NSLog(@"Refreshed");
}
void MyScreenUpdateMoveCallback (CGScreenUpdateMoveDelta delta, size_t
count, const CGRect * rectArray, void * userParameter) {
NSLog(@"Updated");
}
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSLog(@"Started");
CGRegisterScreenRefreshCallback(MyScreenRefreshCallback, NULL);
CGScreenRegisterMoveCallback(MyScreenUpdateMoveCallback, NULL);
NSRunLoop *runLoop = [NSRunLoop currentRunLoop];
[runLoop runUntilDate:[NSDate dateWithTimeIntervalSinceNow: 10]];
NSLog(@"Finished");
[pool drain];
return 0;
}
2008/10/29 Nick Zitzmann <[EMAIL PROTECTED]>
>
> On Oct 29, 2008, at 12:00 PM, Steve McLeod wrote:
>
> I am trying to detect whether any window moves on the screen. As far as I
>> can tell CGScreenRegisterMoveCallback should let me do this. But in the
>> little test code below, which registers callbacks then waits 20 seconds, I
>> never see the message "Updated" or "Refreshed". The code builds and runs
>> without warnings.
>>
>> Any ideas?
>>
>
>
> You need to create and run a run loop.
>
> Nick Zitzmann
> <http://www.chronosnet.com/>
>
>
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