+extern cvar_t vid_mouse_clickthrough;
+extern cvar_t vid_grabkeyboard;
+extern cvar_t vid_touchscreen;
+extern cvar_t vid_touchscreen_showkeyboard;
+extern cvar_t vid_touchscreen_supportshowkeyboard;
+extern cvar_t vid_stick_mouse;
+extern cvar_t vid_resizable;
+extern cvar_t vid_desktopfullscreen;
+#ifdef WIN32
+extern cvar_t vid_ignore_taskbar;
+#endif
+extern cvar_t vid_minwidth;
+extern cvar_t vid_minheight;
+extern cvar_t vid_sRGB;
+extern cvar_t vid_sRGB_fallback;
+
+extern cvar_t gl_finish;
+
+extern cvar_t v_gamma;
+extern cvar_t v_contrast;
+extern cvar_t v_brightness;
+extern cvar_t v_color_enable;
+extern cvar_t v_color_black_r;
+extern cvar_t v_color_black_g;
+extern cvar_t v_color_black_b;
+extern cvar_t v_color_grey_r;
+extern cvar_t v_color_grey_g;
+extern cvar_t v_color_grey_b;
+extern cvar_t v_color_white_r;
+extern cvar_t v_color_white_g;
+extern cvar_t v_color_white_b;