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#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_GET_WINDOW_PIXELVALUE
#endif
/*
float Xw_get_window_pixelvalue (awindow,pv):
XW_EXT_WINDOW *awindow
int pv Pixel Values
Returns DWU value from Pixel value
*/
#ifdef XW_PROTOTYPE
float Xw_get_window_pixelvalue(void *awindow,int pv)
#else
float Xw_get_window_pixelvalue(awindow,pv)
void *awindow;
int pv ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow;
float uv ;
if( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXT_WINDOW Address*/
Xw_set_error(24,"Xw_get_window_pixelvalue",pwindow) ;
return (XW_ERROR) ;
}
uv = UVALUE(pv) ;
#ifdef TRACE_GET_WINDOW_PIXELVALUE
if( Xw_get_trace() > 1 ) {
printf (" %f = Xw_get_window_pixelvalue(%lx,%d)\n",uv,(long ) pwindow,pv) ;
}
#endif
return (uv);
}
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