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61 lines
1.9 KiB
C++
Executable File
61 lines
1.9 KiB
C++
Executable File
// Copyright (c) 1999-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#include <Xw_Extension.h>
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#ifdef TRACE
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#define TRACE_GET_SCREEN_PIXELVALUE
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#endif
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/*
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float Xw_get_screen_pixelvalue (adisplay,pv):
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XW_EXT_DISPLAY *adisplay
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int pv Pixel Values
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Returns screen value from Pixel value in [0,1] Space
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*/
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#ifdef XW_PROTOTYPE
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float Xw_get_screen_pixelvalue(void *adisplay,int pv)
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#else
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float Xw_get_screen_pixelvalue(adisplay,pv)
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void *adisplay;
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int pv ;
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#endif /*XW_PROTOTYPE*/
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{
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XW_EXT_DISPLAY *pdisplay = (XW_EXT_DISPLAY*)adisplay;
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float sv ;
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if( !Xw_isdefine_display(pdisplay) ) {
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/*ERROR*Bad EXT_DISPLAY Address*/
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Xw_set_error(96,"Xw_get_screen_pixelvalue",pdisplay) ;
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return (0.) ;
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}
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sv = (float)pv/min(WidthOfScreen(_DSCREEN),HeightOfScreen(_DSCREEN)) ;
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#ifdef TRACE_GET_SCREEN_PIXELVALUE
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if( Xw_get_trace() > 1 ) {
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printf (" %f = Xw_get_screen_pixelvalue(%lx,%d)\n",sv,(long ) pdisplay,pv) ;
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}
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#endif
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return (sv);
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}
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