Sounds like your window is initially visible before it's had its alpha set; try
turning off "visible at launch" in the nib.
On Nov 7, 2011, at 12:04 PM, Chris Paveglio wrote:
> I have a custom about box, and it's sort of like Adobe apps, where it's not a
> traditional window but a graphic/image I made that is a shape like a hexagon
> with a drop shadow.
> It works fine and I can call it and I disable the window background by
> setting the window alpha to 0.999.
> One little tiny issue is that when I invoke the about box, for just a
> millisecond I sort of see the window bounds and background, and then it goes
> away. The second time I show the about box the blink of background window is
> not present.
> Is there some way to not have that flash happen the first time? I'm not doing
> anything in init or awakeFromNib, only this:
>
> -(IBAction)showAboutWindow:(id)sender
> {
> if(!aboutWindow)
> [NSBundleloadNibNamed:@"AboutWindow"owner:self];
> [aboutWindowsetBackgroundColor:[NSColorclearColor]];
> [aboutWindowsetAlphaValue:0.9999999]; //will only show transparent
> backgrounds if set to something less than 1.0
> [aboutWindowcenter];
> [aboutWindowsetStyleMask:NSBorderlessWindowMask];
> [aboutWindowmakeKeyAndOrderFront:nil];
> }
>
> I tried setting some of the settings in awakeFromNib but they didn't seem to
> apply properly.
>
> Thanks, Chris
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