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#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_GET_MMSCREEN_PIXELVALUE
#endif
/*
float Xw_get_mmscreen_pixelvalue (adisplay,pv):
XW_EXT_DISPLAY *adisplay
int pv Pixel Values
Returns Screen value from Pixel value in MM
*/
#ifdef XW_PROTOTYPE
float Xw_get_mmscreen_pixelvalue(void* adisplay,int pv)
#else
float Xw_get_mmscreen_pixelvalue(adisplay,pv)
void *adisplay;
int pv ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_DISPLAY *pdisplay = (XW_EXT_DISPLAY*)adisplay;
float sv ;
if( !Xw_isdefine_display(pdisplay) ) {
/*ERROR*Bad EXT_DISPLAY Address*/
Xw_set_error(96,"Xw_get_mmscreen_pixelvalue",pdisplay) ;
return (XW_ERROR) ;
}
sv = (MMPXVALUE(pv) + MMPYVALUE(pv))/2. ;
#ifdef TRACE_GET_MMSCREEN_PIXELVALUE
if( Xw_get_trace() > 1 ) {
printf (" %f = Xw_get_mmscreen_pixelvalue(%lx,%d)\n",sv,(long ) pdisplay,pv) ;
}
#endif
return (sv);
}
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