-extern cvar_t vid_conwidth;
-extern cvar_t vid_conheight;
-extern cvar_t vid_pixelheight;
-extern cvar_t scr_screenshot_jpeg;
-extern cvar_t scr_screenshot_jpeg_quality;
-extern cvar_t scr_screenshot_gammaboost;
-extern cvar_t scr_screenshot_name;
+extern struct cvar_s vid_conwidth;
+extern struct cvar_s vid_conheight;
+extern struct cvar_s vid_pixelheight;
+extern struct cvar_s scr_screenshot_jpeg;
+extern struct cvar_s scr_screenshot_jpeg_quality;
+extern struct cvar_s scr_screenshot_png;
+extern struct cvar_s scr_screenshot_gammaboost;
+extern struct cvar_s scr_screenshot_name;