mac监听Dock激活程序

涉及库添加：
LIBS += -framework CoreFoundation -framework Carbon -lobjc

涉及头文件：
#include <objc/objc.h>
#include <objc/message.h>

监听回调函数：
bool dockClickHandler(id self,SEL _cmd,...)
{
    Q_UNUSED(self)
    Q_UNUSED(_cmd)
    (QMainWindow *)mainWindow->OnHandleClickDock();
    return true;
}

主程序监听：
Class cls = objc_getClass("NSApplication");
objc_object *appInst = objc_msgSend((objc_object*)cls, sel_registerName("sharedApplication"));

if(appInst != NULL)
{
    objc_object* delegate = objc_msgSend(appInst, sel_registerName("delegate"));
    Class delClass = (Class)objc_msgSend(delegate, sel_registerName("class"));
    SEL shouldHandle = sel_registerName("applicationShouldHandleReopen:hasVisibleWindows:");
    if (class_getInstanceMethod(delClass, shouldHandle))
    {
        if (class_replaceMethod(delClass, shouldHandle, (IMP)dockClickHandler, "[email protected]:"))
            qDebug() << "Registered dock click handler (replaced original method)";
        else
            qWarning() << "Failed to replace method for dock click handler";
    }
    else
    {
        if (class_addMethod(delClass, shouldHandle, (IMP)dockClickHandler,"[email protected]:"))
            qDebug() << "Registered dock click handler";
        else
            qWarning() << "Failed to register dock click handler";
    }
}