/* * $Id$ */ /* * File......: SHIFT.C * Author....: Ted Means * CIS ID....: 73067,3332 * * This is an original work by Ted Means and is placed in the * public domain. * * Modification history: * --------------------- * * Rev 1.4 15 Jul 1993 23:53:12 GLENN * Dropped _MK_FP for the preferred 0x00400017 * * Rev 1.3 15 Jul 1993 08:06:46 GLENN * Added call to _MK_FP() in order to make this work in protected mode. * * Rev 1.2 15 Aug 1991 23:08:26 GLENN * Forest Belt proofread/edited/cleaned up doc * * Rev 1.1 14 Jun 1991 19:53:56 GLENN * Minor edit to file header * * Rev 1.0 01 Apr 1991 01:03:00 GLENN * Nanforum Toolkit * * */ /* $DOC$ * $FUNCNAME$ * FT_SHIFT() * $CATEGORY$ * Keyboard/Mouse * $ONELINER$ * Determine status of shift key * $SYNTAX$ * FT_SHIFT() -> lValue * $ARGUMENTS$ * None * $RETURNS$ * .T. if a shift key is pressed, .F. if otherwise. * $DESCRIPTION$ * This function is useful for times you need to know whether or not the * shift key is pressed, such as during a MemoEdit(). * $EXAMPLES$ * IF FT_SHIFT() * @24, 0 say "Shift" * ELSE * @24, 0 say " " * ENDIF * $SEEALSO$ * FT_CAPLOCK() FT_CTRL() FT_NUMLOCK() FT_PRTSCR() FT_ALT() * $END$ */ #include HB_FUNC(FT_SHIFT ) { #if defined(HB_OS_DOS) { hb_retl( ( int ) ( ( *( char * ) 0x00400017 ) & 0x3 ) ); return; } #endif }