NSOpenGLView，NSWindow& NSResponder - makeFirstResponder不工作 [英] NSOpenGLView, NSWindow & NSResponder - makeFirstResponder not working

问题描述

在下面的代码中我正在初始化一个 NSViewController [a NSResponder]， NSWindow ， NSOpenGLView ，显示视图并尝试将 NSViewController 设置为Windows第一响应程序。

它不工作。我希望能够在下面的 keyUp：和 keyDown：方法中打破一个断点，发生。

我缺少一些东西？

   - （void）initwithFrame： （CGRect）框架
 {
 window = [[MyNSWindow alloc] initWithContentRect：frame styleMask：NSClosableWindowMask | NSTitledWindowMask backing：NSBackingStoreBuffered defer：YES]; 
 
 
 OpenGLView * glView = [[[OpenGLView alloc] initWithFrame：window.frame] autorelease]; 
 
 window.contentView = glView; 
 
 [window makeFirstResponder：self]; 
 [window makeKeyWindow]; 
 
 [window display]; 
} 
 
  - （void）keyDown：（NSEvent *）theEvent 
 {
 unichar unicodeKey = [[TheEvent characters] characterAtIndex：0]; 
 unicodeKey = 0; 
} 
 
  - （void）keyUp：（NSEvent *）theEvent 
 {
 unichar unicodeKey = [[theEvent characters] characterAtIndex：0]; 
 unicodeKey = 0; 
} 
  

解决方案

我一直在使用此睡眠功能来控制应用帧速率：

  void System :: Sleep（double seconds）
 {
 NSDate * limit = [NSDate dateWithTimeIntervalSinceNow：seconds]; 
 NSRunLoop * runLoop = [NSRunLoop currentRunLoop]; 
 
 [runLoop runUntilDate：limit]; 
} 
  

这样做似乎完全冻结了系统并阻止了关键事件。 p>

而是使用此来计划更新函数：

  [NSTimer scheduledTimerWithTimeInterval： interval target：self selector：@selector（updateApp :) userInfo：nil repeats：YES]; 
  

In the code below I am Initialising a NSViewController [a NSResponder], with a NSWindow, a NSOpenGLView, presenting the view and attempting to set the NSViewController as the windows first responder.

It is not working. I was expecting to be able to hit a breakpoint in the keyUp: and keyDown: methods also below, but nothing is happening.

Am I missing something?

-(void)initwithFrame:(CGRect)frame 
{
    window = [[MyNSWindow alloc] initWithContentRect:frame styleMask:NSClosableWindowMask | NSTitledWindowMask backing:NSBackingStoreBuffered                           defer: YES ];   


    OpenGLView* glView = [[[OpenGLView alloc] initWithFrame:window.frame] autorelease];

    window.contentView = glView;

    [window makeFirstResponder:self];   
    [window makeKeyWindow];     

    [window display];   
}   

-(void)keyDown:(NSEvent*)theEvent
{
    unichar unicodeKey = [ [ theEvent characters ] characterAtIndex:0 ];
    unicodeKey = 0;
}

-(void)keyUp:(NSEvent *)theEvent
{
    unichar unicodeKey = [ [ theEvent characters ] characterAtIndex:0 ];
    unicodeKey = 0;
}

解决方案

Returning to this issue, actually the problem is elsewhere.

I had been using this sleep function to control the apps frame rate:

void System::Sleep(double seconds)
{
    NSDate* limit       = [NSDate dateWithTimeIntervalSinceNow:seconds];
    NSRunLoop* runLoop  = [NSRunLoop currentRunLoop];

    [runLoop runUntilDate:limit];
}

Doing this seems to freeze the system completely and block the key events.

Instead use this to schedule the update function:

[NSTimer scheduledTimerWithTimeInterval:interval target:self selector:@selector(updateApp:) userInfo:nil repeats:YES];

这篇关于NSOpenGLView，NSWindow& NSResponder - makeFirstResponder不工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！