NSEvent addGlobalMonitorForEventsMatchingMask:热键拦截 [英] NSEvent addGlobalMonitorForEventsMatchingMask: Hotkey Intercepting

问题描述

我想截取以 Control + Shift 开头并以字符(强制性)结尾的热键.
我有以下代码:

I wanna intercept hotkeys that begin with Control+Shift and ends with a character (mandatory).
I have the following code:

[NSEvent addGlobalMonitorForEventsMatchingMask:NSFlagsChangedMask handler: ^(NSEvent *event) {
    NSUInteger flags = [event modifierFlags] & NSDeviceIndependentModifierFlagsMask;
    if(flags == NSControlKeyMask + NSShiftKeyMask){
        NSLog(@"pressed!");
    }
}];

我需要在代码中添加些什么，以检查用户是否按了 Control Shift +字符，以及用户按了什么字符?
仅当我上面所说的为真时，才会执行代码NSLog(@"pressed!");.

这是我正在寻找的伪代码:

What do i need to add to my code to check if the user pressed ControlShift+character, and what character the user pressed?
The code NSLog(@"pressed!"); will be executed only if what i said above is true.

This is my pseudo-code for what i'm looking for:

[NSEvent addGlobalMonitorForEventsMatchingMask:NSFlagsChangedMask handler: ^(NSEvent *event) {
    NSUInteger flags = [event modifierFlags] & NSDeviceIndependentModifierFlagsMask;
    if((flags == NSControlKeyMask + NSShiftKeyMask) && [event containsCharacter]){
       NSLog(@"%@", [event character];
    }
}];

因此，如果用户按下 Control + Shift +1，我会做一件事，如果 Control + Shift +2其他东西，依此类推...

So if the user presses Control+Shift+1 i'll do one thing, if Control+Shift+2 other thing, and so on...

推荐答案

您需要按位比较:

- (void)keyDown:(NSEvent *)theEvent { 
    if ([theEvent modifierFlags] & (NSControlKeyMask | NSShiftKeyMask)) { 
        if (theEvent.keyCode == 1/* add the right key code */) {
            NSLog(@"Do something");
        }
    } else { 
        [super keyDown:theEvent]; 
    } 
} 

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