Question

之后,我收到了,该指南。

Whereas I sincerely failed to understand what it says at point 13, I just have opened the pane of the inspector, but it doesn t say what attributes to set. However, I have copied and pasted the code in the proper classes. But it appears a normal window, without the triangle draw, just like when I make a normal program in Objective-C having an empty window.

Edit:

我认为,问题在于窗户的初始化,因此,我撰写了一种觉醒基金从尼伯开始的方法:

- (void) awakeFromNib
{
    NSRect rect=NSMakeRect(100.0, 100.0, 100.0, 100.0);
    [self drawRect: rect];
}

但是,在第一项指示中, Rect I have an EXC_BAD_ 缩略语

glClearColor(0, 0, 0, 0);

Maybe the window is not initialized properly?

Answer 1

也许你会受到指责,因为开放式利比里亚联盟试图在目前情况下改变某些状态,而目前的情况却不存在(因为你寄了<代码>-drawRect:,而没有首先确定目前的情况)。

www.un.org/spanish/ecosoc 页: 1

- (void)awakeFromNib {
  self.needsDisplay = YES;
}

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