d3d9: Refuse to reset a lost device.

dlls/d3d9/device.c

@@ -635,6 +635,12 @@ static HRESULT WINAPI DECLSPEC_HOTPATCH d3d9_device_Reset(IDirect3DDevice9Ex *if
 
     TRACE("iface %p, present_parameters %p.\n", iface, present_parameters);
 
+    if (!device->d3d_parent->extended && device->device_state == D3D9_DEVICE_STATE_LOST)
+    {
+        WARN("App not active, returning D3DERR_DEVICELOST.\n");
+        return D3DERR_DEVICELOST;
+    }
+
     wined3d_mutex_lock();
 
     if (device->vertex_buffer)

dlls/d3d9/tests/d3d9ex.c

@@ -1374,6 +1374,23 @@ static void test_lost_device(void)
     hr = IDirect3DDevice9Ex_CheckDeviceState(device, NULL);
     ok(hr == S_PRESENT_OCCLUDED, "Got unexpected hr %#x.\n", hr);
 
+    ret = SetForegroundWindow(GetDesktopWindow());
+    ok(ret, "Failed to set foreground window.\n");
+    hr = IDirect3DDevice9Ex_Present(device, NULL, NULL, NULL, NULL);
+    ok(hr == S_PRESENT_OCCLUDED, "Got unexpected hr %#x.\n", hr);
+    hr = reset_device(device, &desc);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9Ex_TestCooperativeLevel(device);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9Ex_Present(device, NULL, NULL, NULL, NULL);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9Ex_PresentEx(device, NULL, NULL, NULL, NULL, 0);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9Ex_CheckDeviceState(device, window);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9Ex_CheckDeviceState(device, NULL);
+    ok(hr == S_PRESENT_OCCLUDED, "Got unexpected hr %#x.\n", hr);
+
     refcount = IDirect3DDevice9Ex_Release(device);
     ok(!refcount, "Device has %u references left.\n", refcount);
 done:

dlls/d3d9/tests/device.c

@@ -9751,6 +9751,17 @@ static void test_lost_device(void)
     hr = IDirect3DDevice9_Present(device, NULL, NULL, NULL, NULL);
     ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
 
+    ret = SetForegroundWindow(GetDesktopWindow());
+    ok(ret, "Failed to set foreground window.\n");
+    hr = reset_device(device, &device_desc);
+    ok(hr == D3DERR_DEVICELOST, "Got unexpected hr %#x.\n", hr);
+    ret = ShowWindow(window, SW_RESTORE);
+    ok(ret, "Failed to restore window.\n");
+    ret = SetForegroundWindow(window);
+    ok(ret, "Failed to set foreground window.\n");
+    hr = reset_device(device, &device_desc);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
     refcount = IDirect3DDevice9_Release(device);
     ok(!refcount, "Device has %u references left.\n", refcount);
 done: