On Oct 23, 2012, at 2:24 AM, alex wrote:
> am always getting nil returned by REALGetControlHandle()
> I think this is because only objects based on RealControl have the Handle
> property.
>
> For the moment I am resorting to a workaround of also placing an extra Canvas
> object
> on my Window and passing the handle of that Canvas object to my control.
>
> How can I make my control to inherit the properties of a RealControl object ?
Call [init] in the constructor callback of the REALcontrol:
ControlData(myControl, instance, myViewData, data);
NSRect newFrame;
Rect bounds;
REALGetControlBounds(instance, &bounds);
newFrame.size.width = bounds.right - bounds.left;
newFrame.size.height = bounds.bottom - bounds.top;
newFrame.origin.x = bounds.left;
newFrame.origin.y = bounds.top;
myView* ed = [[myView alloc] initWithFrame: newFrame];
myViewData->theView = ed;
Make sure you implement the HandleGetter callback of the REALcontrol:
unsigned long HandleGetter(REALcontrolInstance instance)
{
ControlData(myControl, instance, myViewData, data);
return (unsigned long)myViewData->theView;
}
This way, you get what you want. The Redraw callback will not be called,
because REALcontrol-cocoa will handle almost everything, including giving time
to your view's draw implementation. No need to call REALcontrolHandle to add
your view to the view hierarchy.
- Alfred Van Hoek
[email protected]
http://vanhoekplugins.com
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