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#include <Xw_Extension.h>
/* ifdef then trace on */
#ifdef TRACE
#define TRACE_GET_BACKGROUND_COLOR
#endif
/*
STATUS Xw_get_background_color(awindow,r,g,b):
XW_EXT_WINDOW *awindow Window extension structure
float *r,*g,*b ; Return Red,Green,Blue color value 0. >= x <= 1.
Get R,G,B Background Color values from Default index .
Returns ERROR if Extended Window Address is badly defined
Returns SUCCESS if Successful
*/
#ifdef XW_PROTOTYPE
XW_STATUS Xw_get_background_color (void* awindow,float* r,float* g,float* b)
#else
XW_STATUS Xw_get_background_color (awindow,r,g,b)
void *awindow;
float *r,*g,*b ;
#endif /*XW_PROTOTYPE*/
{
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*)awindow;
unsigned long pixel;
if ( !Xw_isdefine_window(pwindow) ) {
/*ERROR*Bad EXTENDED Window ADDRESS*/
Xw_set_error(24,"Xw_get_background_color",pwindow) ;
return (XW_ERROR) ;
}
if( pwindow->backindex >= 0 ) {
switch ( _CLASS ) {
case PseudoColor :
case StaticColor :
case TrueColor :
Xw_get_color (_COLORMAP,pwindow->backindex,r,g,b,&pixel) ;
break ;
default :
/*Unmatchable Visual class*/
Xw_set_error(67,"Xw_get_background_color",&_CLASS) ;
return (XW_ERROR) ;
}
} else {
*r = *g = *b = 1. ;
}
#ifdef TRACE_GET_BACKGROUND_COLOR
if( Xw_get_trace() ) {
printf(" Xw_get_background_color(%lx,%f,%f,%f)\n",(long ) pwindow,*r,*g,*b) ;
}
#endif
return (XW_SUCCESS);
}
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