cgeventtap

I'm trying to use CGCreateEventTap to monitor global mouse clicks, however when I do this it seems to block interaction with my own app. Mouse clicks in other running apps work fine, but my own app (that is the DemoAppDelegate app) does not respond completely. I can drag the main window for the app, but the red/yellow/green window buttons are greyed out. And the DemoApp's menu is unclickable as well. This seems really strange to me, and I've been unable to figure it out. Examples of using event taps are few and far between, so any advice is greatly appreciated. #import "DemoAppDelegate.h"

I'm running into a thorny problem with posting an event from an event tap. I'm tapping for NSSystemDefined at kCGHIDEventTap, then replacing the event with a new one. The problem I'm running in to is that depending on how I post the event, it's being seen only by some applications. My test applications are Opera, Firefox, Quicksilver, and Xcode. Here are the different techniques I've tried within my event tap callback, with results. I'm expecting an action (the "correct response") from each app; "system beep" means the nothing-is-bound-to-that-key system sound. Create a new event, and return

I'm having a hard time dealing with custom keyboard events. I want to be able to send any key with / without kCGEventFlagMasks like command, alt, ctrl, shift... e.g. I want to send the current frontmost app, let's assume it's TextEdit, the key combo cmd+t, which should show the font window. But currently only t is added to the current document of TextEdit. I tried posting the event with custom set CGEventFlags and alternatively generating keyDown and keyUp events for cmd around the t event. The free app Key Codes shows me when I use the CGEventFlags set, that cmd+t has been pressed, but this

I am using CGEventTapCreateForPSN to trap and filter keys for my application. I'm not interested in intercepting events for other applications. I'm pretty sure an event tap is too heavy handed for my purpose, but I've been unable to find a better way, and using the event tap works. Specifically, this code does what I want. GetCurrentProcess(&psn); CFMachPortRef eventTap = CGEventTapCreateForPSN( &psn, kCGHeadInsertEventTap, kCGEventTapOptionDefault, CGEventMaskBit(kCGEventKeyDown) | CGEventMaskBit(kCGEventKeyUp), eventCallback, userInfo); And my callback is handled nicely, with the events

I have seen many post on this topic. But haven't found a clear answer anywhere. Is there a way to toggle CAPS LOCK in Objective-C or C code? I am not looking for a solution using X11 libs. I am not bothered about the LED on/off status. But just the functionality of CAPS LOCK (changing the case of letters and printing the special characters on number keys). Why is CGEvent not supporting this the way it does for other keys? var ioConnect: io_connect_t = .init(0) let ioService = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching(kIOHIDSystemClass)) IOServiceOpen(ioService, mach

I'm using the following code to simulate a click of the mouse: void PostMouseEvent(CGMouseButton button, CGEventType type, const CGPoint point) { CGEventRef theEvent = CGEventCreateMouseEvent(NULL, type, point, button); CGEventSetType(theEvent, type); CGEventPost(kCGHIDEventTap, theEvent); CFRelease(theEvent); } void LeftClick(const CGPoint point) { PostMouseEvent(kCGMouseButtonLeft, kCGEventMouseMoved, point); NSLog(@"Click!"); PostMouseEvent(kCGMouseButtonLeft, kCGEventLeftMouseDown, point); PostMouseEvent(kCGMouseButtonLeft, kCGEventLeftMouseUp, point); } I can use basically the same code

Has anyone managed to get this function to work in Swift? Here is a reference SO post from last year: Using CGEventTapCreate Trouble with parameters in Swift Apple Doc: https://developer.apple.com/library/prerelease/mac/documentation/Carbon/Reference/QuartzEventServicesRef/index.html#//apple_ref/c/func/CGEventTapCreate Here is how the CGEventTapCallBack is defined: typealias CGEventTapCallBack = CFunctionPointer<((CGEventTapProxy, CGEventType, CGEvent!, UnsafeMutablePointer<Void>) -> Unmanaged<CGEvent>!)> Here is how I've written the block: let eventTapCallBackBlock : @objc_block