1 // Copyright (c) 1999-2012 OPEN CASCADE SAS
3 // The content of this file is subject to the Open CASCADE Technology Public
4 // License Version 6.5 (the "License"). You may not use the content of this file
5 // except in compliance with the License. Please obtain a copy of the License
6 // at http://www.opencascade.org and read it completely before using this file.
8 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
9 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
11 // The Original Code and all software distributed under the License is
12 // distributed on an "AS IS" basis, without warranty of any kind, and the
13 // Initial Developer hereby disclaims all such warranties, including without
14 // limitation, any warranties of merchantability, fitness for a particular
15 // purpose or non-infringement. Please see the License for the specific terms
16 // and conditions governing the rights and limitations under the License.
19 #include <Xw_Extension.h>
21 /* ifdef then trace on */
23 #define TRACE_GET_PIXEL_SCREENVALUE
27 int Xw_get_pixel_screenvalue (adisplay,sv):
28 XW_EXT_DISPLAY *adisplay
29 float sv Screen Values in [0,1] Space
31 Returns pixel value from screen value
36 int Xw_get_pixel_screenvalue(void* adisplay,float sv)
38 int Xw_get_pixel_screenvalue(adisplay,sv)
41 #endif /*XW_PROTOTYPE*/
43 XW_EXT_DISPLAY *pdisplay = (XW_EXT_DISPLAY*)adisplay;
46 if( !Xw_isdefine_display(pdisplay) ) {
47 /*ERROR*Bad EXT_DISPLAY Address*/
48 Xw_set_error(96,"Xw_get_pixel_screenvalue",pdisplay) ;
52 pv = (int)(sv*min(WidthOfScreen(_DSCREEN),HeightOfScreen(_DSCREEN))) ;
54 #ifdef TRACE_GET_PIXEL_SCREENVALUE
55 if( Xw_get_trace() > 1 ) {
56 printf (" %d = Xw_get_pixel_screenvalue(%lx,%f)\n",pv,(long ) pdisplay,sv) ;