Returns graphics hardware and library version information.
FORTRAN (libfgl.a)
Int32 gversion(Char8 *v)
INTEGER*4 GVERSI(v, length) CHARACTER*(*) v INTEGER*4 length
The gversion subroutine fills the buffer, identified by the v parameter, with a null-terminated string that specifies the graphics hardware type and the version number of GL.
It is not necessary to open a GL window or to call the ginit subroutine before using the getdesc subroutine.
The gversion subroutine returns a value of -1 if GL is not supported on this particular hardware configuration.
Note: This subroutine cannot be used to add to a display list.
Attention: Calling the gversion subroutine before calling the winopen subroutine on the POWERgraphics GTO and the POWERstation 730, results in a core dump when the initial winopen subroutine call is made.
In the following values table, m and n indicate the major and minor release numbers of the installed software libraries:
| Installed Adapter | String Returned |
| 3-D Color Graphics Processor | GL:CGP-m.n |
| Supergraphics Processor | GL:GTO-m.n |
| POWER GTO adapter | GL:GTO-m.n |
| POWER Gt4 adapter | GL:GT4-m.n |
| POWER Gt4x adapter | GL:GT4-m.n |
| v | Specifies a buffer into which you can copy a string. Reserve at least a 12-character buffer. |
| length | Specifies the length of the string. |
This subroutine is part of GL in the AIXwindows Environment/6000 Version 1, Release 2 with AIXwindows/3D Feature.
| /usr/include/gl/gl.h | Contains C language constant and variable type definitions for GL. |
| /usr/include/gl/fgl.h | Contains FORTRAN constant and variable type definitions for GL. |
Creating a new window with the winopen subroutine.
Understanding the Hardware Used by GL and Clearing, Resetting, and Initializing GL in GL3.2 Version 4 for AIX: Programming Concepts.