/* * $Id$ */ /* * File......: ALT.C * Author....: Ted Means * CIS ID....: 73067,3332 * * This function is an original work by Ted Means and is placed in the * public domain. * * Modification history: * --------------------- * * Rev 1.5 16 Apr 2000 17:30:00 Luiz Rafael Culik * Ported to Harbour * * Rev 1.4 15 Jul 1993 23:48:00 GLENN * Dropped _MK_FP for preferred 0x00400017 * * Rev 1.3 13 Jul 1993 22:28:58 GLENN * Added call to _MK_FP in order to be compatible in protected mode. * * Rev 1.2 15 Aug 1991 23:08:34 GLENN * Forest Belt proofread/edited/cleaned up doc * * Rev 1.1 14 Jun 1991 19:53:36 GLENN * Minor edit to file header * * Rev 1.0 01 Apr 1991 01:02:42 GLENN * Nanforum Toolkit * * */ /* $DOC$ * $FUNCNAME$ * FT_ALT() * $CATEGORY$ * Keyboard/Mouse * $ONELINER$ * Determine status of the Alt key * $SYNTAX$ * FT_ALT() -> lValue * $ARGUMENTS$ * None * $RETURNS$ * .T. if Alt key is pressed, .F. if otherwise. * $DESCRIPTION$ * This function is useful for times you need to know whether or not the * Alt key is pressed, such as during a MemoEdit(). * $EXAMPLES$ * IF FT_ALT() * @24, 0 say "Alt" * ELSE * @24, 0 say " " * ENDIF * $SEEALSO$ * FT_CAPLOCK() FT_CTRL() FT_NUMLOCK() FT_PRTSCR() FT_SHIFT() * $END$ */ #include HB_FUNC(FT_ALT) { #if defined(HB_OS_DOS) { hb_retl( ( int ) ( ( *( char * ) 0x00400017 ) & 0x8 ) ); return; } #endif }