keyval_convert_case
Description:
Obtains the upper- and lower-case versions of the keyval symbol.
Examples of keyvals are `GDK_KEY_a`, `GDK_KEY_Enter`, `GDK_KEY_F1`, etc.
Parameters:
| symbol |
a keyval |
| lower |
return location for lowercase version of |
| upper |
return location for uppercase version of |
Namespace: Gdk
Package: gtk4