CODEWITHSUNDEEP
objective-cnsevent
Sanich
Sanich

Reputation: 1835

Filtering window modifyning events

I have this message loop:

while (!shutdown_now_) 
    {
        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
        NSEvent *event = [NSApp nextEventMatchingMask:NSAnyEventMask
                                            untilDate:[NSDate distantFuture]
                                               inMode:NSDefaultRunLoopMode
                                              dequeue:YES];
        if (event) [NSApp sendEvent:event];
        // If modifying window event, do something!!! 
        [pool drain];
    }

I want to filter all NSEvents that modifying a window, for example move, resize, order out e.t.c. I've trying looking for the type in Apple documentation but w/o success. Any help? Thanks!

Upvotes: 0

Views: 313

Answers (2)

Sanich
Sanich

Reputation: 1835

The event type I was looking for is NSAppKitDefined:

while (!shutdown_now_) 
    {
        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
        NSEvent *event = [NSApp nextEventMatchingMask:NSAnyEventMask
                                            untilDate:[NSDate distantFuture]
                                               inMode:NSDefaultRunLoopMode
                                              dequeue:YES];
        if (event.type == NSAppKitDefined)
        {
            NSLog(@"NSAppKitDefinedEvent with subtype: %d", event.subtype);
        }
        if (event) [NSApp sendEvent:event];
        [pool drain];
    }

Upvotes: 0

Ken Thomases
Ken Thomases

Reputation: 90531

Filtering events is not the right approach for this.

If you don't want to allow the user to move a window, set the window's movable property to false.

If you don't want to allow the user to resize the window, set the window's styleMask to not include NSResizableWindowMask. Or, possibly, set its contentMinSize and contentMaxSize to its current size.

No event can directly order a window out. The window's delegate gets to decide whether or not the close button actually closes the window, by implementing -windowShouldClose:. If you don't want the close button to be enabled at all, set the styleMask to not include NSClosableWindowMask.

Upvotes: 2

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