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Re: Backend functions
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From: |
Adam Fedor |
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Subject: |
Re: Backend functions |
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Date: |
Sun, 22 Apr 2001 20:21:41 -0600 |
Fred Kiefer wrote:
> BTW: Can anybody explain to my, why we need the second DPSgsave() call
> in the [NSView lockFocusInRect:] method? Some comments in the code here
> would help.
>
The second gsave protects the currently installed graphics context from
being modified by the user (or the AppKit, for that matter) in any
subsequent drawing. In essence, it 'installs' the gstate specific to the
lockFocused view.