Using these two calls:
NSRect nsRect = [screen frame];
CGRect cgRect = CGDisplayBounds (displayID);
I get for my two screens:
NS x=0 y=0 w=2560 h=1600 // screen A
CG x=0 y=0 w=2560 h=1600
NS x=-1920 y=184 w=1920 h=1200 // screen B
CG x=-1920 y=216 w=1920 h=1200
It seems CG origin is Top, Left with y growing down, while NS is origin
Bottom, Left, y growing up. So I convert CG to NS with:
// Convert CG coordinates from (TL, y down) to (BL, y up)
CGRect mainScreenRect = CGDisplayBounds (CGMainDisplayID ());
cgRect.origin.y = (cgRect.origin.y + cgRect.size.height -
mainScreenRect.size.height) * -1;
(216 + 1200 - 1600) * -1 = 184
Is there a system function that does this? NSRectFromCGRect does not do the
coordinate conversion.
Thanks,
Trygve
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