On Jan 19, 2016, at 6:30 PM, Graham Cox wrote:
>
> OK, I got this working - thanks for all the help.
>
> There is a follow-up issue though. On 10.11 (others not yet tried), the
> drawing only appears on the main screen. When I make my transparent window, I
> size it to the union of all NSScree
OK, I got this working - thanks for all the help.
There is a follow-up issue though. On 10.11 (others not yet tried), the drawing
only appears on the main screen. When I make my transparent window, I size it
to the union of all NSScreens, thinking that would cover the entire desktop no
matter h
> On 16 Jan 2016, at 5:02 PM, Ken Thomases wrote:
>
> What is calling -setNeedsDisplayInRect:, in response to what event or
> occurrence, and with what rect?
It’s complicated, but events that start off in view1, and also draw stuff
there, end up also drawing overlaid graphics in view2 (the o
On Jan 15, 2016, at 11:31 PM, Graham Cox wrote:
>
> What isn’t working is correctly setting the dirty rects when part of the view
> needs to be refreshed. This is what has been leading me astray - because the
> dirty region is misaligned, the drawing I’m doing is clipped, so it doesn’t
> appea
> On 16 Jan 2016, at 4:10 PM, Ken Thomases wrote:
>
> NSView* view1 = /* ... */;
> NSRect rect = /* some rect in view1's internal coordinate space (relative to
> its bounds, not its frame) */;
> NSView* view2 = /* some view in another window */;
>
> rect = [view1 convertRect:rect toView:nil];
On Jan 15, 2016, at 10:27 PM, Graham Cox wrote:
>
> I have a need to draw as if to the entire screen as an overlay.
> Where I’m having a problem is that I need the overlay content to match up to
> objects drawn in another view, in another window. This view can be scrolled
> and zoomed arbitrar
> On 16 Jan 2016, at 12:27, Graham Cox wrote:
>
>
> summary: view -> window -> screen -> window -> view
>
>
> Tried this and many variants of it, nothing works - the coordinates I end up
> with are not in the visible part of my overlay so don’t appear.
>
>
> A better solution (i.e. less wo
I have a need to draw as if to the entire screen as an overlay. For this
purpose I have created an invisible window that covers the entire desktop, and
in that I have a view set as its contentView in which I can draw my content in
the normal manner (-drawRect:, etc). The window and view are tran
