Yes, but you should leave the window's alpha at 1.0.
Off top of my head, it goes something like this:
Create a subclass of NSView and set that class as the class for the contentView
of the window (in IB)
Change that class's drawRect to :
- (void)drawRect:(NSRect)rect {
// Clear the drawing rect.
[[NSColor clearColor] set];
NSRectFill(rect);
}
Now any non-opague views you place within that view can decide their own alpha
values (or draw with differing levels of alpha) as needed.
Matt
On 5 Oct 2010, at 11:25:45, Trygve Inda wrote:
> Is there a way to have a window with a 50% opaque background, but several
> odd-shaped views that are 100% opaque? The dock does this but seems be one
> window per icon. Can I do it all as one window?
>
> My NSWindow subclass looks like:
>
> [self setOpaque:NO];
> [self setHasShadow: YES];
> [self setLevel:NSFloatingWindowLevel];
> [self setAlphaValue:0.50];
>
> This sets the alpha of the whole window to 50% (and works) but If I add a
> line or replace the alpha line with: [[self contentView]
> setAlphaValue:0.50];
>
> Then the window is totally opaque... Even subviews in the main contentView.
>
> Any way to do this w/o using multiple windows?
>
> Trygve
>
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