Re: alpha color and drawRect
Re: alpha color and drawRect
- Subject: Re: alpha color and drawRect
- From: Valerio Ferrucci <email@hidden>
- Date: Mon, 3 Apr 2006 15:52:34 +0200
Here is the code:
- (void)drawRect:(NSRect)rect
{
NSRect bounds = [self bounds];
[[NSColor colorWithDeviceRed:22. green:22. blue:22. alpha:.3] set];
[NSBezierPath fillRect:NSInsetRect(bounds, 100, 100)];
}
Il giorno 03/apr/06, alle ore 15:45, Stephane ha scritto:
On Apr 3, 2006, at 3:38 PM, Valerio Ferrucci wrote:
Hi,
I have a window with backGroundcolor completely transparent.
[myWin setBackgroundColor:[NSColor colorWithDeviceRed:22. green:
22. blue:22. alpha:0]];
then I add to it a subView to draw something inside. (all this is
inspired by the overlay win apple example).
The view's drawRect routine simply draw a little centered rect
with the semi-transparent color:
[NSColor colorWithDeviceRed:22. green:22. blue:22. alpha:.3]
The problem is:
the centered rect doesn't remain transparent. Instead it becomes
completely in 2 or 3 redraws white!!.
Any idea?
Probably if you could show the code you're using to fill that rect.
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