是否需要用户界面才能在Cocoa中进行全局事件监视？ [英] Is user interface required in order to do global event monitoring in Cocoa?

问题描述

我有一个简单的代码片段（不是MVC），代码看起来像下面

 ＃include< Cocoa / cocoa。 h。 
 
 int main（argc，* argv []）{
 [NSApplication sharedApplication] 
 [NSEvent addGlobalMonitorForEventsMatchingMask：NSKeyUpMask handler：^（NSEvent * evt）{....} ] 
 [NSApp run] 
} 
  

当编译为命令行二进制和运行，全局事件监控工作，允许程序从系统首选项 - >隐私&安全;然后我打包它一个.app，并运行它，全球监视器停止工作，即使允许应用程序从隐私&安全。

我刚刚接触Cocoa，为了为一个打包的应用程序实现一个简单的全局监视器，我需要做什么？

解决方案

blockquote>

您是将CLI程序放入应用程序包还是使用新的图形化Cocoa应用程序？

我建议你使用Xcode的项目窗口创建一个新的GUI应用程序，然后使用以下代码片段作为你的applicationDidFinishLaunching：实现：

  - （void）applicationDidFinishLaunching：（NSNotification *）aNotification 
 {
 Boolean isTrusted = AXIsProcessTrustedWithOptions（CFDictionaryCreate（NULL，（const void * []）{kAXTrustedCheckOptionPrompt}，（const void * []）{kCFBooleanTrue} ，1，NULL，NULL））; 
 if（isTrusted）
 {
 [NSEvent addGlobalMonitorForEventsMatchingMask：NSKeyUpMask handler：^（NSEvent * evt）{NSLog（@Received NSKeyUp event。 }]; 
} 
} 
  

这将自动打开系统首选项窗格，用户选择您的应用程序应该受信任。
AXIsProcessTrustedWithOptions 需要OS X 10.9（Mavericks）。

更新

有一些陷阱关于在调试全局事件监视器时支持辅助设备：

• 通过XcodeBuild& Run启动应用程序包附件调试程序，Xcode还需要在隐私预设窗格中授予辅助功能权限


• 当安装了监视器的Cocoa应用程序的窗口位于前景。

I have a simple snippet(not MVC) of code looking like the following

# include <Cocoa/cocoa.h> 

int main(argc, *argv[]) {
    [NSApplication sharedApplication]
    [NSEvent addGlobalMonitorForEventsMatchingMask:NSKeyUpMask handler:^(NSEvent *evt){ .... }]
    [NSApp run]
}

When compiled as command line binary and run, the global event monitoring works, after allowing the program from system preferences -> privacy & security; then I packed it int an .app, and ran it, the global monitor stopped working even after allowing the app from privacy & security.

I'm new to Cocoa, in order to implement a simple global monitor for a packaged app, what do I need to do else?

解决方案

then I packed it int an .app

Did you put your CLI program in an app bundle or did you start over with a new graphical Cocoa Application?

I'd suggest you create a new GUI app using Xcode's project window and then use the following snippet as your applicationDidFinishLaunching: implementation:

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    Boolean isTrusted = AXIsProcessTrustedWithOptions(CFDictionaryCreate(NULL, (const void*[]){ kAXTrustedCheckOptionPrompt }, (const void*[]){ kCFBooleanTrue }, 1, NULL, NULL));
    if(isTrusted)
    {
        [NSEvent addGlobalMonitorForEventsMatchingMask:NSKeyUpMask handler:^(NSEvent *evt){ NSLog(@"Received NSKeyUp event."); }];
    }
}

This will automatically bring up the System Preference pane that allows the user choose wether your application should be trusted. AXIsProcessTrustedWithOptions requires OS X 10.9 (Mavericks).

Update
There are some pitfalls regarding "Support for assistive devices" when debugging a global event monitor:

• When launching the app bundle via Xcode "Build & Run" with an attached debugger, Xcode also needs to be granted Accessibility rights in the Privacy pref pane
• The global event monitor does not receive events when a window from the Cocoa app that installed the monitor is in the foreground.

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