Cocoa: change cursor when it's over an NSButto

问题:

How can I change the cursor when it's over an NSButton?

回答1:

[yourButton addCursorRect:[yourButton bounds] cursor:[theCursorYouWant]];

回答2:

You should subclass NSButton first, then add the code below.

- (void)resetCursorRects
{
    if (self.cursor) {
        [self addCursorRect:[self bounds] cursor: self.cursor];
    } else {
        [super resetCursorRects];
    }
}

Now you can set cursor as you like.

[self.button setCursor:[NSCursor pointingHandCursor]];

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Note: add cursor as a property of your subclass, like this:

@property (strong) NSCursor *cursor;  

回答3:

Have the button add a cursor rect.