IDirectManipulationManager::ProcessInput method (directmanipulation.h)

Article
02/22/2024

Passes keyboard and mouse messages to the manipulation manager on the app's UI thread.

Syntax

HRESULT ProcessInput(
  [in]          const MSG *message,
  [out, retval] BOOL      *handled
);

Parameters

[in] message

The input message to process.

[out, retval] handled

TRUE if no further processing should be done with this message; otherwise, FALSE.

Return value

If the method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

Call this method for mouse and keyboard input.

Examples

The following example shows how to pass messages to the manipulation manager.

LRESULT WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    BOOL handled = FALSE;

LRESULT WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    BOOL handled = FALSE;
    switch (msg)
    {
    case WM_KEYDOWN:
    case WM_POINTERWHEEL:
    case WM_POINTERHWHEEL:
    case WM_MOUSEWHEEL:
    case WM_MOUSEHWHEEL:
        MSG msg = {};
        msg.hwnd = hwnd;
        msg.message = message;
        msg.lParam = lParam;
        msg.wParam = wParam;

        if (FAILED(m_pManipulationManager->ProcessInput(&msg, &handled)))
        {
            handled = false;
        }
        break;
    }

    if ( !handled)
    {
        return DefWindowProc(hwnd,msg,wParam,lParam);
    }
    else
    {
        return 0;
    }
}

Requirements

Requirement	Value
Minimum supported client	Windows 8 [desktop apps only]
Minimum supported server	Windows Server 2012 [desktop apps only]
Target Platform	Windows
Header	directmanipulation.h

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