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currentcontext(3) [centos man page]

gl_getcontext(3)						Svgalib User Manual						  gl_getcontext(3)

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 struc- ture. 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)

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restoretextmode(1)                                              Svgalib User Manual                                             restoretextmode(1)

NAME
restoretextmode - save or restore the SVGA registers for textmode. SYNOPSIS
restoretextmode {-r|-w} filename DESCRIPTION
The state of the SVGA is written to or restored from filename using the vga_gettextmoderegs(3) and vga_settextmoderegs(3) functions. As of this writing this file is 385 bytes long but this might change with future versions. Please do not fiddle with the contents of the file except when you know what you do. It might even result in hardware damage. Because of that, you should think twice to make this command available to all users on your system. The purpose of this program is usually to recover from a crashed console due to an svgalib, Xfree or other program bug. First save the state of the SVGA card when on a text console. After the crash restore this state. The savetextmode(1) and textmode(1) script makes this procedure very easy. OPTIONS
-w filename write the SVGA state to the file filename. -r filename restore the SVGA state from the file filename. SEE ALSO
svgalib(7), vgagl(7), libvga.config(5), vga_gettextmoderegs(3), vga_settextmoderegs(3), dumpreg(1), convfont(1), fix132x43(1), restore- font(1), restorepalette(1), runx(1), savetextmode(1), setmclk(1), textmode(1). AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The exact source of the referenced utility 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 restoretextmode(1)
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