Method WndProc

Source/Engine/Platform/Windows/WindowsWindow.cpp:879–1321

}

LRESULT WindowsWindow::WndProc(UINT msg, WPARAM wParam, LPARAM lParam)
{
    const UINT_PTR MouseStopTimerID = 1;
    switch (msg)
    {
    case WM_PAINT:
    {
        // Check if window is during resizing
        if (_isResizing && _swapChain)
        {
            // Redraw window backbuffer on DX11
            switch (GPUDevice::Instance->GetRendererType())
            {
            case RendererType::DirectX10:
            case RendererType::DirectX10_1:
            case RendererType::DirectX11:
                _swapChain->Present(false);
                break;
            }
        }
        break;
    }
    case WM_TIMER:
    {
        if (wParam == MouseStopTimerID)
        {
            // Kill the timer after processing it
            KillTimer(_handle, MouseStopTimerID);
            return 0;
        }
        break;
    }
    case WM_SETCURSOR:
    {
        if (LOWORD(lParam) == HTCLIENT)
        {
            UpdateCursor();
            return true;
        }
        break;
    }
    case WM_MOUSEMOVE:
    {
        if (!_trackingMouse)
        {
            TrackMouse(_handle);
            _trackingMouse = true;
        }

        if (_isTrackingMouse)
        {
            KillTimer(_handle, MouseStopTimerID);
            SetTimer(_handle, MouseStopTimerID, 100, nullptr);
        }

        // Here we can transfer mouse pointer over virtual workspace
        if (_isTrackingMouse && _isUsingMouseOffset)
        {