vkf_viewer_key Interface

interface

public function vkf_viewer_key(viewer, pressed, symbol, modified_symbol, modifier) bind(C, name="vkf_viewer_key")

Arguments

Type	Intent	Optional	Attributes		Name
type(c_ptr),			value	::	viewer	viewer handle (vkf_viewer_create)
integer(kind=c_int),			value	::	pressed	1 for a press, 0 for a release
integer(kind=c_int),			value	::	symbol	the key's base symbol (unmodified)
integer(kind=c_int),			value	::	modified_symbol	the key's symbol with the modifiers applied ('V' with shift)
integer(kind=c_int),			value	::	modifier	the modifier keys held (vsg::KeyModifier mask)

Return Value integer(kind=c_int)

Description

A key press or release from the host's window, as VSG key symbols and modifiers (vsg/ui/KeyEvent.h: ASCII for printable keys, X11-style codes otherwise). Returns 0, or -1 on failure.