Hi,all.I am new to cocoa. I am reading Aaron Hillegass's Book "Cocoa
Programming for Mac OS X".
I have got some problems with challenge 2 of Chapter 20.I have a
custom NSView called BigLetterView, and then it show the input letter
on the view.Now I want to make the letter which I just inputted
appears in italics. So, I define this method:
- (IBAction) isItalic: (id) sender
{
if ([italicBox state])
{
NSFontManager *fontManager = [NSFontManager
sharedFontManager];
[fontManager convertFont: [NSFont fontWithName: @"Helvetica"
size: 75]
toHaveTrait:
NSItalicFontMask];
}else {
NSFontManager *fontManager = [NSFontManager
sharedFontManager];
[fontManager convertFont: [NSFont fontWithName: @"Helvetica"
size: 75]
toHaveTrait:
NSUnitalicFontMask];
}
[self setNeedsDisplay: YES];
}
When I click the italics check button. Nothing happens. How do I
suppose to make this wok?
How can I get the font the letter is using?
Thanks.
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