dev/win32/ SyntheticKeyStrokes

Use SendInput

Prototype

UINT SendInput(
  [in] UINT    cInputs,
  [in] LPINPUT pInputs,
  [in] int     cbSize
);

Example 1

//**********************************************************************
//
// Sends Win + D to toggle to the desktop
//
//**********************************************************************
void ShowDesktop()
{
    OutputString(L"Sending 'Win-D'\r\n");
    INPUT inputs[4] = {};
    ZeroMemory(inputs, sizeof(inputs));

    inputs[0].type = INPUT_KEYBOARD;
    inputs[0].ki.wVk = VK_LWIN;

    inputs[1].type = INPUT_KEYBOARD;
    inputs[1].ki.wVk = VK_D;

    inputs[2].type = INPUT_KEYBOARD;
    inputs[2].ki.wVk = VK_D;
    inputs[2].ki.dwFlags = KEYEVENTF_KEYUP;

    inputs[3].type = INPUT_KEYBOARD;
    inputs[3].ki.wVk = VK_LWIN;
    inputs[3].ki.dwFlags = KEYEVENTF_KEYUP;

    UINT uSent = SendInput(ARRAYSIZE(inputs), inputs, sizeof(INPUT));
    if (uSent != ARRAYSIZE(inputs))
    {
        OutputString(L"SendInput failed: 0x%x\n", HRESULT_FROM_WIN32(GetLastError()));
    } 
}