How to find out if something in the GTK application reserved particular accelerator?

Dejan Lekic

Posted Tue, 23 Aug 2022 20:00:17 GMT

In the tiny IDE I work on I have the following problem:

This works:

MenuItem compileFileItem = new MenuItem("_Compile file", (MenuItem mi) => pm.compileFile(), "activate");
compileFileItem.addAccelerator("activate", accelGroup, GdkKeysyms.GDK_F6, ModifierType.SHIFT_MASK, 
                            AccelFlags.VISIBLE);
projectMenu.add(compileFileItem);

However, this does not

MenuItem compileFileItem = new MenuItem("_Compile file", (MenuItem mi) => pm.compileFile(), "activate");
compileFileItem.addAccelerator("activate", accelGroup, GdkKeysyms.GDK_F6, ModifierType.CONTROL_MASK, 
                            AccelFlags.VISIBLE);
projectMenu.add(compileFileItem);

I suspect something "stole" the CTRL-F6 shortcut. Same is happening with ALT-F6. Any ideas how to fix this?