Question

I m trying to register for CGScreenRefreshCallback and CGScreenUpdateMoveCallback ( here s what apple s saying about http://developer.apple.com/mac/library/documentation/GraphicsImaging/Reference/Quartz_Services_Ref/Reference/reference.html#//apple_ref/doc/uid/TP30001070-CH1g-F16970 ) using C++ only.

我写了这一复电的简单测试器,以便检索不断变化的试金:

#include "ApplicationServices/ApplicationServices.h"
#include <iostream>

using namespace std;

/////////////HEADER
static void DHRefreshCallback (CGRectCount count,const CGRect * rectArray,void * userParameter);
///////////////////

int main (int argc, char * const argv[]) {

CGRegisterScreenRefreshCallback(DHRefreshCallback, NULL);

while (true) {
    // just hanging
}
return 0;
}


static void DHRefreshCallback (CGRectCount count,const CGRect * rectArray,void * userParameter){
cout << "something changed" << endl;
return;
}

......但是没有工作。

我知道,我需要与WowServer(Quartz Compositor Quartz extreme Quartz 2D......still can tates out the differences)联系,并且需要一丝不).,以便获得这些呼吁,但我确实不知道在C++中如何做到这一点(根本就没有目标C)。

任何方向?

thx in advance, pigiuz

Answer 1

它不使用目标C。报告从总体上介绍了由/code>(CFRunloop)填写的SOS X仪器中的事件。 See Run Loop管理和

不

while (true) {
    // just hanging
}

公正

extern "C" void NSApplicationLoad(void);
NSApplicationLoad();  // establish a connection to the window server. In <Cocoa/Cocoa.h>
CFRunLoopRun();       // run the event loop

Don t forget to link against Cocoa.framework; just add -framework Cocoa in the command line of the compiler. You can #import <Cocoa/Cocoa.h> but then you need to use Objective-C++ because of the Objective-C classes declared in it.

你可以使用

 RunApplicationEventLoop(); //establish a connection to the window server 
                            //and runs the event loop. In <Carbon/Carbon.h>

缩略语

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