Anybody know how to use NSHighlightRect ?
Anybody know how to use NSHighlightRect ?
- Subject: Anybody know how to use NSHighlightRect ?
- From: Robert Miller <email@hidden>
- Date: Fri, 4 Oct 2002 16:09:00 -0400
Hello, please help,
Here goes another one of those seemingly basic questions that has
eroded some of my brain trying to figure out. Does anyone know how to
use NSHighlightRect ? I am trying to implement a live selection
rectangle which tracks mouse dragged and changes the size of the rect
from an anchor point. I'm keeping track of the last rectangle and the
new rectangle coordinates and calling the following sequence.
[self lockFocus];
NSHighlightRect(lastRect);
NSHighlightRect(newRect);
[self unlockFocus];
I thought that NSHighlightRect was supposed to take care of the drawing
'mode' using the current highlight color and provide a clean efficient
selection rect without the need to incur the overhead of an actual view
display call. I've tried changing the current foreground color, etc
just to see if anything happens but, nothing is drawn at all, even if I
never call it for the 'lastRect' you'd think that there would at least
be a rect drawn that doesn't erase any old areas. I could swear that I
saw NSHighlightRect work in the past. Am I missing something (besides a
few million brain cells) ?
Thanks for any insight,
Regards,
Bob M.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.