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_SCREEN_PIXELCOORD
27 XW_STATUS Xw_get_screen_pixelcoord (adisplay,px,py,sx,sy):
28 XW_EXT_DISPLAY *adisplay
29 int px,py Screen Coordinates defined in Pixels
30 float *sx,*sy Returns Screen Coordinates defined in [0,1] Space
32 Get screen coordinate from Pixel Space to [0,1] Space
34 returns XW_ERROR if Pixel Coordinate is outside the screen
35 or the if Extended Window address is not defined
36 returns XW_SUCCESS if successful
41 XW_STATUS Xw_get_screen_pixelcoord(void *adisplay,int px,int py,float *sx,float *sy)
43 XW_STATUS Xw_get_screen_pixelcoord(adisplay,px,py,sx,sy)
47 #endif /*XW_PROTOTYPE*/
49 XW_EXT_DISPLAY *pdisplay = (XW_EXT_DISPLAY*)adisplay;
53 if( !Xw_isdefine_display(pdisplay) ) {
54 /*ERROR*Bad EXT_DISPLAY Address*/
55 Xw_set_error(96,"Xw_get_screen_pixelcoord",pdisplay) ;
59 displaywidth = WidthOfScreen(_DSCREEN) ;
60 displayheight = HeightOfScreen(_DSCREEN) ;
62 *sx = (float)px/(float)displaywidth ;
63 *sy = 1. - (float)py/(float)displayheight ;
65 if( px < 0 || px >= displaywidth || py < 0 || py >= displayheight )
68 #ifdef TRACE_GET_SCREEN_PIXELCOORD
70 printf (" Xw_get_screen_pixelcoord(%lx,%d,%d,%f,%f)\n",(long ) pdisplay,px,py,*sx,*sy) ;