cocoa - NSView won't draw through bezierpath -

dear fellow cocoa programmers,

what i'd accomplish:

i have checkbox, popupbutton(which hidden) , nsview on canvas. if mycheckbox checked -> show popupbutton , draw line through bezierpath on nsview. if mycheckbox unchecked -> hide popupbutton again , "undraw" path

the code:

- (ibaction)ischecked:(id)sender {   //if mychekcbox checked, show pop button   if ([sender state]==nsonstate) {     nslog(@"checked");     [mypopup sethidden:no];   }   else   {     //if checkbox unchecked, hide popupbutton     [mypopup sethidden:yes];     nslog(@"unchecked");    }   //reload drawrect method (reload view)   [self setneedsdisplay:yes]; }  - (void)drawrect:(nsrect)dirtyrect {   //if checkedbutton checked, draw line   if ([mycheckbox state]==nsonstate)   {     nsbezierpath *mypath = [nsbezierpath bezierpath];     [mypath movetopoint:nsmakepoint(10, 20)];     [mypath linetopoint:nsmakepoint(50, 20)];     [mypath setlinewidth:2];     [mypath stroke];   }  } 

the problem:

if checked state = nsonstate popupbutton visible line won't draw , wonder why... think it's connection(s) problem.

i uploaded project file (it's rather small-35kb) here:drawing.zip

globally: i've read nsview documentation , it's saying there 1 way draw view , it's through drawrect method. true? descent way draw view? (if function in view , setneedsdisplay:yes in method)

thanks in advance, ben

you need nscolor instance , call setstroke on set current stroke color. not know color use stroke path @ start of drawrect:, have tell it.