可可 - CGEventPost鼠标点击后屏幕没有刷新

Question

当用户单击某个键盘键(CapsLock)时,我以编程方式生成鼠标单击.因此,当CapsLock打开时我向左鼠标按下,然后在CapsLock关闭时向左鼠标向上.

这样做是正确的,例如,如果我将鼠标放在窗口标题栏上,单击CapsLock,然后移动鼠标,然后单击CapsLock,窗口正确移动.即我正确地"拖动"窗口,就像我在移动鼠标时按住鼠标左键一样.

然而,有一个问题 - 当我移动鼠标时窗口不移动,它只在我第二次点击CapsLock后移动到最终位置.即在我'释放'鼠标按钮之后.

我需要做些什么来确保在鼠标移动过程中刷新屏幕？

有趣的是,我也迷上了

[NSEvent addGlobalMonitorForEventsMatchingMask:NSLeftMouseDraggedMask

并且发现我的NSLog语句仅在我释放鼠标左键(真正的鼠标左键)后输出

鼠标点击代码如下,我可以发布所有代码,如果有必要,没有太多的..

// simulate mouse down

// get current mouse pos
CGEventRef ourEvent = CGEventCreate(NULL);
CGPoint point = CGEventGetLocation(ourEvent);
NSLog(@"Location? x= %f, y = %f", (float)point.x, (float)point.y);

CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
CGEventRef theEvent = CGEventCreateMouseEvent(source, kCGEventLeftMouseDown, point, kCGMouseButtonLeft);
CGEventSetType(theEvent, kCGEventLeftMouseDown);
CGEventPost(kCGHIDEventTap, theEvent);
CFRelease(theEvent);


// simulate mouse up

// get current mouse pos
CGEventRef ourEvent = CGEventCreate(NULL);
CGPoint point = CGEventGetLocation(ourEvent);
NSLog(@"Location? x= %f, y = %f", (float)point.x, (float)point.y);

CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
CGEventRef theEvent = CGEventCreateMouseEvent(source, kCGEventLeftMouseUp, point, kCGMouseButtonLeft);
CGEventSetType(theEvent, kCGEventLeftMouseUp);
CGEventPost(kCGHIDEventTap, theEvent);
CFRelease(theEvent);

Answer 1

如果您希望能够拖动窗口,问题是您还需要发布一个LeftMouseDragged事件.

只需调用beginEventMonitoring即可开始监听大写锁定键事件和鼠标移动事件.事件处理程序将按照您的需要模拟鼠标左键和移动.这是我的博客的链接,您可以在其中下载Xcode 4的完整工作示例:http://www.jakepetroules.com/2011/06/25/simulating-mouse-events-in-cocoa

这个例子是在公共领域,做任何你喜欢的事情.:)

根据Apple(NSEvent文档),需要在"系统偏好设置">"通用访问"中检查"为辅助设备启用访问权限"才能使其正常工作,但我没有检查它,这不是问题.只是一个抬头.

如果您有任何其他问题,请告诉我,我会尽力帮助您.

// Begin listening for caps lock key presses and mouse movements
- (void)beginEventMonitoring
{
    // Determines whether the caps lock key was initially down before we started listening for events
    wasCapsLockDown = CGEventSourceKeyState(kCGEventSourceStateHIDSystemState, kVK_CapsLock);

    capsLockEventMonitor = [NSEvent addGlobalMonitorForEventsMatchingMask:(NSFlagsChangedMask) handler: ^(NSEvent *event)
    {
        // Determines whether the caps lock key was pressed and posts a mouse down or mouse up event depending on its state
        bool isCapsLockDown = [event modifierFlags] & NSAlphaShiftKeyMask;
        if (isCapsLockDown && !wasCapsLockDown)
        {
            [self simulateMouseEvent: kCGEventLeftMouseDown];
            wasCapsLockDown = true;
        }
        else if (wasCapsLockDown)
        {
            [self simulateMouseEvent: kCGEventLeftMouseUp];
            wasCapsLockDown = false;
        }
    }];

    mouseMovementEventMonitor = [NSEvent addGlobalMonitorForEventsMatchingMask:(NSMouseMovedMask) handler:^(NSEvent *event)
    {
        [self simulateMouseEvent: kCGEventLeftMouseDragged];
    }];
}

// Cease listening for caps lock key presses and mouse movements
- (void)endEventMonitoring
{
    if (capsLockEventMonitor)
    {
        [NSEvent removeMonitor: capsLockEventMonitor];
        capsLockEventMonitor = nil;
    }

    if (mouseMovementEventMonitor)
    {
        [NSEvent removeMonitor: mouseMovementEventMonitor];
        mouseMovementEventMonitor = nil;
    }
}

-(void)simulateMouseEvent:(CGEventType)eventType
{
    // Get the current mouse position
    CGEventRef ourEvent = CGEventCreate(NULL);
    CGPoint mouseLocation = CGEventGetLocation(ourEvent);

    // Create and post the event
    CGEventRef event = CGEventCreateMouseEvent(CGEventSourceCreate(kCGEventSourceStateHIDSystemState), eventType, mouseLocation, kCGMouseButtonLeft);
    CGEventPost(kCGHIDEventTap, event);
    CFRelease(event);
}