Determines whether a given keyval and modifier mask constitute
a valid keyboard accelerator. For example, the #GDK_KEY_a keyval
plus #GDK_CONTROL_MASK is valid - this is a “Ctrl+a” accelerator.
But, you can't, for instance, use the #GDK_KEY_Control_L keyval
as an accelerator.
Determines whether a given keyval and modifier mask constitute a valid keyboard accelerator. For example, the #GDK_KEY_a keyval plus #GDK_CONTROL_MASK is valid - this is a “Ctrl+a” accelerator. But, you can't, for instance, use the #GDK_KEY_Control_L keyval as an accelerator.