Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: NSWindow hax0r

Actually, I don't think it does set the entire window's alpha value as evidenced by the titlebar, scroll bar, and even the text itself remaining solid while the background of the terminal as translucent.

I have actually tried a few things and found a solution. So here's the secret if you want to create a window where you can see through parts of it:

1. When you initialize the window, set the alpha value to just less than one and isOpaque to NO:

[window setAlphaValue: 0.999] ;
[window setOpaque: NO] ;

2. Add a custom view to your window that will draw with a partially transparent color. This transparency will actually show through the window itself. For example, if you create a custom view with the following drawRect: method and then add it to a window initialized as I stated above, then the view will display as a "hole" in the window:

- (void)drawRect: (NSRect)rect
{
[[NSColor clearColor] set] ;
NSRectFill([self frame]) ;
}

I have dropped the project I used to test this on my server. Check:

http://www.okito.net/charles/macosx/Quickie.sit

[Note: I'll probably take it off after some time.]

Cheers,
-Charles

On Tuesday, October 2, 2001, at 01:26 AM, Finlay Dobbie wrote:

On Tuesday, October 2, 2001, at 02:00 AM, Dustin Mierau wrote:

I want an NSWindow to have transparent parts but still draw the standard window controls, is this possible? It would be nice if I could have controls draw the transparent parts and have the window draw areas normally that are not transparent.

Actually, the terminal sets the entire window's alpha value (see -[NSWindow setAlpha])
You can do what you want, yes -- see the RoundTransparentWindow example at developer.apple.com/samplecode under Cocoa.

-- Finlay
_______________________________________________
cocoa-dev mailing list
email@hidden
http://www.lists.apple.com/mailman/listinfo/cocoa-dev

References: 
 >Re: NSWindow hax0r (From: Finlay Dobbie <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.