I am trying to set NSWindow (borderless, with no controls) to be transparent
before I display it (so that I can fade it onto the screen). Unfortunately, I
don't seem to be able to - it loads, visibly, then sets the opacity to 0
(resulting in the window flickering at full opacity, before disappearing and
then fading into view. Sure, it's a fast flick - but it's ugly, and not the
effect that I'm looking for. Does anyone have any idea how to set opacity to 0
before displaying the window?
Before we have the discussion about splash screens by the way, I'd just like to
say 'I agree - I hate them too'. To justify my actions, this is because the
app loads into the menu bar, not the dock, and so (in testing) I discovered
that users thought it hadn't loaded at all. So, on first load only (unless
specifically requested otherwise in preferences) a splash is displayed
informing the user that the app has loaded - and to look up to the menu bar,
not down to the dock.
- (id)initSplash
{
if (self = [super initWithWindowNibName:@"SplashScreen"])
{
(void) [splashWindow window];
[splashWindow setAlphaValue:0.0];
return self;
}
return nil;
}
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