如何使NSWindow处理mouseDown事件而不关注焦点？
现在我有一个无边框窗口，可以处理鼠标按下事件以移动和调整自身大小。但是如何处理没有焦点的鼠标按下事件？
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疾很毋悲
方法并返回。温拎凯玛
通过in，您将通过Quartz Event Services捕获。它将返回鼠标悬停在其上的窗口编号。抓住那个窗口然后移动/调整大小。 示例实现（主要取自此处）：#import <ApplicationServices/ApplicationServices.h> // Required globals/ivars: // 1) CGEventTap eventTap is an ivar or other global // 2) NSInteger (or int) myWindowNumber is the window // number of your borderless window void createEventTap(void) { CFRunLoopSourceRef runLoopSource; CGEventMask eventMask = NSLeftMouseDownMask; // mouseDown event //create the event tap eventTap = CGEventTapCreate(kCGSessionEventTap, kCGHeadInsertEventTap, // triggers before other event taps do kCGEventTapOptionDefault, eventMask, myCGEventCallback, //the callback we receive when the event fires nil); // Create a run loop source. runLoopSource = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, eventTap, 0); // Add to the current run loop. CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopCommonModes); // Enable the event tap. CGEventTapEnable(eventTap, true); } //the CGEvent callback that does the heavy lifting CGEventRef myCGEventCallback(CGEventTapProxy proxy, CGEventType type, CGEventRef theEvent, void *refcon) { // handle the event here if([NSWindow windowNumberAtPoint:CGEventGetLocation(theEvent) belowWindowWithWindowNumber:0] == myWindowNumber) { // now we know our window is the one under the cursor } // If you do the move/resize at this point, // then return NULL to prevent anything else // from responding to the event, // otherwise return theEvent. return theEvent; }