Examples: DirectX9: Handle loss of D3D9 device (D3DERR_DEVICELOST). (#1464)

7 years ago · e000ee0116
parent 7e2d0d734c
commit e000ee0116
1 changed files with 9 additions and 1 deletions
--- a/examples/directx9_example/main.cpp
+++ b/examples/directx9_example/main.cpp
@ -154,7 +154,15 @@ int main(int, char**)
            ImGui::Render();
            g_pd3dDevice->EndScene();
        }
-        g_pd3dDevice->Present(NULL, NULL, NULL, NULL);
+        HRESULT result = g_pd3dDevice->Present(NULL, NULL, NULL, NULL);
+
+        // Handle loss of D3D9 device
+        if (result == D3DERR_DEVICELOST && g_pd3dDevice->TestCooperativeLevel() == D3DERR_DEVICENOTRESET)
+        {
+            ImGui_ImplDX9_InvalidateDeviceObjects();
+            g_pd3dDevice->Reset(&g_d3dpp);
+            ImGui_ImplDX9_CreateDeviceObjects();
+        }
    }

    ImGui_ImplDX9_Shutdown();