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/*
* nvidia-settings: A tool for configuring the NVIDIA X driver on Unix
* and Linux systems.
*
* Copyright (C) 2004 NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of Version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See Version 2
* of the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the:
*
* Free Software Foundation, Inc.
* 59 Temple Place - Suite 330
* Boston, MA 02111-1307, USA
*
*/
/*
* nv-control-info.c - trivial sample NV-CONTROL client that
* demonstrates how to determine if the NV-CONTROL extension is
* present.
*/
#include <stdio.h>
#include <X11/Xlib.h>
#include "NVCtrl.h"
#include "NVCtrlLib.h"
int main(void)
{
Display *dpy;
Bool ret;
int event_base, error_base, major, minor, screens, i;
char *str;
/*
* open a connection to the X server indicated by the DISPLAY
* environment variable
*/
dpy = XOpenDisplay(NULL);
if (!dpy) {
fprintf(stderr, "Cannot open display '%s'.\n", XDisplayName(NULL));
return 1;
}
/*
* check if the NV-CONTROL X extension is present on this X server
*/
ret = XNVCTRLQueryExtension(dpy, &event_base, &error_base);
if (ret != True) {
fprintf(stderr, "The NV-CONTROL X extension does not exist on '%s'.\n",
XDisplayName(NULL));
return 1;
}
/*
* query the major and minor extension version
*/
ret = XNVCTRLQueryVersion(dpy, &major, &minor);
if (ret != True) {
fprintf(stderr, "The NV-CONTROL X extension does not exist on '%s'.\n",
XDisplayName(NULL));
return 1;
}
/*
* print statistics thus far
*/
printf("NV-CONTROL X extension present\n");
printf(" version : %d.%d\n", major, minor);
printf(" event base : %d\n", event_base);
printf(" error base : %d\n", error_base);
/*
* loop over each screen, and determine if each screen is
* controlled by the NVIDIA X driver (and thus supports the
* NV-CONTROL X extension); then, query the string attributes on
* the screen.
*/
screens = ScreenCount(dpy);
for (i = 0; i < screens; i++) {
if (XNVCTRLIsNvScreen(dpy, i)) {
printf("Screen %d supports the NV-CONTROL X extension\n", i);
ret = XNVCTRLQueryStringAttribute(dpy, i,
0, /* XXX not curently used */
NV_CTRL_STRING_PRODUCT_NAME,
&str);
if (ret) {
printf(" GPU : %s\n", str);
XFree(str);
}
ret = XNVCTRLQueryStringAttribute(dpy, i,
0, /* XXX not curently used */
NV_CTRL_STRING_VBIOS_VERSION,
&str);
if (ret) {
printf(" VideoBIOS : %s\n", str);
XFree(str);
}
ret = XNVCTRLQueryStringAttribute(dpy, i,
0, /* XXX not curently used */
NV_CTRL_STRING_NVIDIA_DRIVER_VERSION,
&str);
if (ret) {
printf(" Driver version : %s\n", str);
XFree(str);
}
}
}
/*
* close the display connection
*/
XCloseDisplay(dpy);
return 0;
}
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