如何在可可应用程序中阻止/重定向全局键盘事件

发布于 2024-11-25 03:03:31 字数 590 浏览 2 评论 0原文

我使用以下代码设置了全局键盘陷阱：

    self.machPortRef =  CGEventTapCreate(kCGSessionEventTap,
                                         kCGTailAppendEventTap,
                                         kCGEventTapOptionDefault,
                                         CGEventMaskBit(kCGEventKeyUp),
                                         (CGEventTapCallBack)eventTapFunction,
                                         self);

How can i block/redirect keydown events of frontmost active window in my cocoa app。我尝试在 eventTapFunction 中返回 NULL，但它并没有阻止事件。

谢谢，

原文

I have setup global keyboard trap using following code:

    self.machPortRef =  CGEventTapCreate(kCGSessionEventTap,
                                         kCGTailAppendEventTap,
                                         kCGEventTapOptionDefault,
                                         CGEventMaskBit(kCGEventKeyUp),
                                         (CGEventTapCallBack)eventTapFunction,
                                         self);

How can i block/redirect keydown events of front most active window in my cocoa app. I tried to return NULL in eventTapFunction, but it didn't block the event.

Thanks,

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