dinput: Implement GetDeviceStatus.

dlls/dinput/dinput_main.c

@@ -417,8 +417,15 @@ static HRESULT WINAPI IDirectInputWImpl_Initialize(LPDIRECTINPUT7W iface, HINSTA
 static HRESULT WINAPI IDirectInputAImpl_GetDeviceStatus(LPDIRECTINPUT7A iface, REFGUID rguid)
 {
     IDirectInputImpl *This = (IDirectInputImpl *)iface;
+    HRESULT hr;
+    LPDIRECTINPUTDEVICEA device;
 
-    FIXME( "(%p)->(%s): stub\n", This, debugstr_guid(rguid) );
+    TRACE( "(%p)->(%s)\n", This, debugstr_guid(rguid) );
+
+    hr = IDirectInput_CreateDevice( iface, rguid, &device, NULL );
+    if (hr != DI_OK) return DI_NOTATTACHED;
+
+    IUnknown_Release( device );
 
     return DI_OK;
 }

dlls/dinput/tests/device.c

@@ -124,10 +124,13 @@ static BOOL CALLBACK enum_devices(LPCDIDEVICEINSTANCE lpddi, LPVOID pvRef)
     LPDIRECTINPUTDEVICE device;
     HRESULT hr;
 
-    hr = IDirectInput_CreateDevice(data->pDI, &lpddi->guidInstance, &device, NULL);
-    ok(SUCCEEDED(hr), "IDirectInput_CreateDevice() failed: %s\n", DXGetErrorString8(hr));
-    if (SUCCEEDED(hr))
+    hr = IDirectInput_GetDeviceStatus(data->pDI, &lpddi->guidInstance);
+    ok(hr == DI_OK, "IDirectInput_GetDeviceStatus() failed: %s\n", DXGetErrorString8(hr));
+
+    if (hr == DI_OK)
     {
+        hr = IDirectInput_CreateDevice(data->pDI, &lpddi->guidInstance, &device, NULL);
+        ok(SUCCEEDED(hr), "IDirectInput_CreateDevice() failed: %s\n", DXGetErrorString8(hr));
         trace("Testing device \"%s\"\n", lpddi->tszInstanceName);
         test_object_info(device, data->hwnd);
         IUnknown_Release(device);
@@ -164,6 +167,18 @@ static void device_tests(void)
         hr = IDirectInput_EnumDevices(pDI, 0, enum_devices, &data, DIEDFL_ALLDEVICES);
         ok(SUCCEEDED(hr), "IDirectInput_EnumDevices() failed: %s\n", DXGetErrorString8(hr));
 
+
+        /* If GetDeviceStatus returns DI_OK the device must exist */
+        hr = IDirectInput_GetDeviceStatus(pDI, &GUID_Joystick);
+        if (hr == DI_OK)
+        {
+            LPDIRECTINPUTDEVICE device = NULL;
+
+            hr = IDirectInput_CreateDevice(pDI, &GUID_Joystick, &device, NULL);
+            ok(SUCCEEDED(hr), "IDirectInput_CreateDevice() failed: %s\n", DXGetErrorString8(hr));
+            if (device) IUnknown_Release(device);
+        }
+
         DestroyWindow(hwnd);
     }
     if (pDI) IUnknown_Release(pDI);