Win: make sure SDL keyboard state reflects system capslock state at startup.

src/video/windows/SDL_windowskeyboard.c

@@ -102,6 +102,20 @@ WIN_InitKeyboard(_THIS)
     SDL_SetScancodeName(SDL_SCANCODE_APPLICATION, "Menu");
     SDL_SetScancodeName(SDL_SCANCODE_LGUI, "Left Windows");
     SDL_SetScancodeName(SDL_SCANCODE_RGUI, "Right Windows");
+	
+    /* Are system caps/num/scroll lock active? Set our state to match. */
+    if (GetKeyState(VK_CAPITAL) & 0x0001) {
+        SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_CAPSLOCK);
+        SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_CAPSLOCK);
+    }
+    if (GetKeyState(VK_NUMLOCK) & 0x0001) {
+        SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_NUMLOCKCLEAR);
+        SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_NUMLOCKCLEAR);
+    }
+    if (GetKeyState(VK_SCROLL) & 0x0001) {
+        SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_SCROLLLOCK);
+        SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_SCROLLLOCK);
+    }
 }
 
 void