c81c4ddc8c
* harbour/contrib/libnf/numlock.c
* harbour/contrib/libnf/caplock.c
* harbour/contrib/libct/keyset.c
! fixed typo
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/*
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* $Id$
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*/
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/*
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* File......: NUMLOCK.C
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* Author....: Ted Means
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* CIS ID....: 73067,3332
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*
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* This function is an original work by Ted Means and is placed in the
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* public domain.
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*
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* Modification history:
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* ---------------------
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*
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* Rev 1.3 15 Jul 1993 00:08:46 GLENN
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* Changed reference to status_byte in order to make this work in
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* protected mode.
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*
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* Rev 1.2 15 Aug 1991 23:08:12 GLENN
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* Forest Belt proofread/edited/cleaned up doc
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*
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* Rev 1.1 27 May 1991 14:43:20 GLENN
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* Ted added a parameter to toggle the Numlock on or off.
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*
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* Rev 1.0 01 Apr 1991 01:02:50 GLENN
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* Nanforum Toolkit
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*
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*
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*/
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/* $DOC$
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* $FUNCNAME$
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* FT_NUMLOCK()
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* $CATEGORY$
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* Keyboard/Mouse
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* $ONELINER$
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* Return status of NumLock key
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* $SYNTAX$
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* FT_NUMLOCK( [ <lNewSetting> ] ) -> lCurrentSetting
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* $ARGUMENTS$
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* <lNewSetting> is optional and if supplied is the new setting
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* for the CapLock key. Specify .T. to turn CapLock on, or .F. to
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* turn it off.
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* $RETURNS$
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* lValue is .T. if NumLock is set, .F. if it isn't set. The value
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* returned represents the setting in effect prior to any changes that
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* might by made by <lNewSetting>.
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* $DESCRIPTION$
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* This function is useful if you need to know or set the status of the
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* NumLock key for some reason.
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* $EXAMPLES$
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* IF FT_NUMLOCK()
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* Qout( "NumLock is active" )
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* ENDIF
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*
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* Another one, slightly strange, courtesy of Glenn Scott:
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*
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*
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* function numBlink()
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* local lOldNum := ft_numlock()
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*
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* while inkey( .5 ) != 27
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* ft_numlock( !ft_numlock() )
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* end
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*
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* return ft_numlock( lOldNum )
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* $SEEALSO$
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* FT_CAPLOCK() FT_CTRL() FT_PRTSCR() FT_SHIFT() FT_ALT()
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* $END$
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*/
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#include "hbapigt.h"
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#include "hbapiitm.h"
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HB_FUNC( FT_NUMLOCK )
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{
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int iState = 0, iNewState;
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HB_GT_INFO gtInfo;
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gtInfo.pNewVal = gtInfo.pResult = NULL;
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hb_gtInfo( GTI_KBDSHIFTS, >Info );
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if( gtInfo.pResult )
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{
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iState = hb_itemGetNI( gtInfo.pResult );
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gtInfo.pNewVal = gtInfo.pResult;
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gtInfo.pResult = NULL;
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}
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if( ISLOG( 1 ) )
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{
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iNewState = hb_parl( 1 ) ? ( iState | GTI_KBD_NUMLOCK ) :
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( iState & ~GTI_KBD_NUMLOCK );
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gtInfo.pNewVal = hb_itemPutNI( gtInfo.pNewVal, iNewState );
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hb_gtInfo( GTI_KBDSHIFTS, >Info );
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}
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if( gtInfo.pNewVal )
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hb_itemRelease( gtInfo.pNewVal );
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if( gtInfo.pResult )
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hb_itemRelease( gtInfo.pResult );
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hb_retl( ( iState & GTI_KBD_NUMLOCK ) != 0 );
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}
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