Run the renderer so Steam can find the main window

test/controllermap.c

@@ -165,6 +165,7 @@ static Uint32 s_unPendingAdvanceTime;
 static SDL_bool s_bBindingComplete;
 
 static SDL_Window *window;
+static SDL_Renderer *screen;
 static SDL_bool done = SDL_FALSE;
 
 SDL_Texture *
@@ -375,7 +376,6 @@ BMergeAxisBindings(int iIndex)
 static void
 WatchJoystick(SDL_Joystick * joystick)
 {
-    SDL_Renderer *screen = NULL;
     SDL_Texture *background_front, *background_back, *button, *axis, *marker;
     const char *name = NULL;
     SDL_Event event;
@@ -384,12 +384,6 @@ WatchJoystick(SDL_Joystick * joystick)
     Uint32 alpha_ticks = 0;
     SDL_JoystickID nJoystickID;
 
-    screen = SDL_CreateRenderer(window, -1, 0);
-    if (screen == NULL) {
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
-        return;
-    }
-    
     background_front = LoadTexture(screen, "controllermap.bmp", SDL_FALSE);
     background_back = LoadTexture(screen, "controllermap_back.bmp", SDL_FALSE);
     button = LoadTexture(screen, "button.bmp", SDL_TRUE);
@@ -746,6 +740,12 @@ main(int argc, char *argv[])
         return 2;
     }
 
+    screen = SDL_CreateRenderer(window, -1, 0);
+    if (screen == NULL) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
+        return 2;
+    }
+
     while (!done && SDL_NumJoysticks() == 0) {
         SDL_Event event;
 
@@ -763,6 +763,7 @@ main(int argc, char *argv[])
                 break;
             }
         }
+        SDL_RenderPresent(screen);
     }
 
     /* Print information about the joysticks */