A "grayed" (mixed) CheckBox does not appear to be working in Cocoa, either by clicking or in code.
cb.AllowGrayed := true;
cb.State := cbGrayed;
Using current updated trunk compiled for Cocoa. It works in Carbon, Windows, and Linux. Would appreciate confirmation before reporting bug. Project files attached.
I built it using Cocoa IDE, and noticed that context menus are not working in the editor tabs (i.e., control click to close a tab) or editor window.