NAME

       gl_getcontext, currentcontext - get the current graphics contents.

SYNOPSIS

       #include <vgagl.h>

       void gl_getcontext(GraphicsContext *gc);

       extern GraphicsContext currentcontext; /* this is already in vgagl.h */

DESCRIPTION

       Save the current context in the structure variable gc.

       You can also get the current context from the global variable currentcontext;

       However,  simply  access  single  elements in this structure with the macros given in vgagl(7) but do not
       copy currentcontext in another structure. This is because the size of the structure might change and your
       program does not know it when it will be linked dynamically to future svgalib versions.

       Instead use gl_allocatecontext(3) to allocate such a structure, fill it with gl_getcontext and release it
       with free(3) after usage.

SEE ALSO

       svgalib(7),    vgagl(7),    svgalib.conf(5),    threedkit(7),    testgl(1),    plane(1),     wrapdemo(1),
       gl_allocatecontext(3),      gl_copyboxfromcontext(3),      gl_copyboxtocontext(3),     gl_freecontext(3),
       gl_setcontext(3),      gl_setcontextheight(3),      gl_setcontextvga(3),      gl_setcontextvgavirtual(3),
       gl_setcontextvirtual(3), gl_setcontextwidth(3).

AUTHOR

       This  manual  page  was  edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The exact source of the
       referenced demo as well as of the original documentation is unknown.

       It  is  very  likely  that  both  are  at  least  to   some   extent   are   due   to   Harm   Hanemaayer
       <H.Hanemaayer@inter.nl.net>.

       Occasionally  this  might  be wrong. I hereby asked to be excused by the original author and will happily
       accept any additions or corrections to this first version of the svgalib manual.

Svgalib (>= 1.2.11)                                2 Aug 1997                                   gl_getcontext(3)