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Cocoa: setting the key equivalent

i want to set the key equivalent of a menuitem with [menuitem setKeyEquivalent:(NSString *)s], how can i do that if i have multiple modifiers ?

i tried:

unichar shift = NSShiftKeyMask, cmd = NSCommandKeyMask;
NSMutableString *keyequiv = [[NSMutableString alloc] init];

[keyequiv appendString:[NSString stringWithCharacter:&shift, 1]];
[keyequiv appendString:[NSString stringWithCharacter:&cmd, 1]];
[keyequiv appendString:@"x"];
[menuItem setKeyEquivalent:keyequivalent];

but that doesnt work.

like image 985
Eike Cochu Avatar asked Jun 03 '11 16:06

Eike Cochu


2 Answers

The modifier key masks are just that: masks, not characters. You can't insert them into the key equivalent string. To apply them, use setKeyEquivalentModifierMask:

[menuItem setKeyEquivalentModifierMask: NSShiftKeyMask | NSCommandKeyMask];
[menuItem setKeyEquivalent:@"x"];

As with any other mask, use the bitwise OR operator | to form combinations. See "Setting a Menu Item's Key Equivalent" for more details.

like image 128
jscs Avatar answered Sep 27 '22 02:09

jscs


The setKeyEquivalent: method is used to specify the character which triggers the command, but not the modifiers. It will set default modifiers by examining the character you pass. If you pass a lowercase character, it will use just command. If you pass an uppercase character, it will use shift+command. Because of this, you simply need to do this for shift+command+x:

[menuItem setKeyEquivalent:@"X"];

If you want to use other modifiers, you then call setKeyEquivalentModifierMask: with the proper constants, chosen from NSShiftKeyMask, NSAlternateKeyMask (option), NSCommandKeyMask, and NSControlKeyMask.

like image 30
ughoavgfhw Avatar answered Sep 26 '22 02:09

ughoavgfhw