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1 | // Copyright (c) 1999-2012 OPEN CASCADE SAS |
2 | // |
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. |
7 | // |
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. |
10 | // |
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. |
17 | |
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18 | |
19 | #include <Xw_Extension.h> |
20 | |
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21 | /* ifdef then trace on */ |
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22 | #ifdef TRACE |
23 | #define TRACE_GET_DISPLAY_VISUAL |
24 | #endif |
25 | |
26 | /* |
27 | Xw_TypeOfVisual Xw_get_display_visual (adisplay,pclass): |
28 | XW_EXT_DISPLAY *adisplay Extended Display structure |
29 | Xw_TypeOfVisual pclass Preferred Visual Class |
30 | |
31 | Returns the X display attributes of a connexion |
32 | |
33 | returns XW_DEFAULT_VISUAL if something is wrong |
34 | returns the best Visual class if Successfull |
35 | |
36 | */ |
37 | |
38 | #ifdef XW_PROTOTYPE |
39 | Xw_TypeOfVisual Xw_get_display_visual (void *adisplay,Xw_TypeOfVisual pclass) |
40 | #else |
41 | Xw_TypeOfVisual Xw_get_display_visual (adisplay,pclass) |
42 | void *adisplay ; |
43 | Xw_TypeOfVisual pclass; |
44 | #endif /*XW_PROTOTYPE*/ |
45 | { |
46 | XW_EXT_DISPLAY *pdisplay = (XW_EXT_DISPLAY*)adisplay ; |
47 | Xw_TypeOfVisual rclass = Xw_TOV_DEFAULT ; |
48 | XVisualInfo *ginfo ; |
49 | |
50 | if( !Xw_isdefine_display(pdisplay) ) { |
51 | /*ERROR*Bad EXT_DISPLAY Address*/ |
52 | Xw_set_error(96,"Xw_get_display_visual",pdisplay) ; |
53 | return (rclass) ; |
54 | } |
55 | |
56 | if( !(ginfo = Xw_get_visual_info(pdisplay,pclass)) ) return (rclass) ; |
57 | |
58 | #if defined(__cplusplus) || defined(c_plusplus) |
59 | rclass = (Xw_TypeOfVisual) ginfo->visual->c_class ; |
60 | #else |
61 | rclass = (Xw_TypeOfVisual) ginfo->visual->class ; |
62 | #endif |
63 | |
64 | XFree((char*)ginfo) ; |
65 | |
66 | |
67 | #ifdef TRACE_GET_DISPLAY_VISUAL |
68 | if( Xw_get_trace() > 1 ) { |
69 | printf (" %d = Xw_get_display_visual(%lx,%d)\n",rclass,(long ) adisplay,pclass) ; |
70 | } |
71 | #endif |
72 | |
73 | return (rclass) ; |
74 | } |