BOOL FASTCALL UserSystemParametersInfo	(	UINT	uiAction,
		UINT	uiParam,
		PVOID	pvParam,
		UINT	fWinIni
	)

Definition at line 1542 of file sysparams.c.

Referenced by IntPaintDesktop(), NtUserSystemParametersInfo(), and UserDrawCaptionText().

{
    ULONG_PTR ulResult;
    PPROCESSINFO ppi = PsGetCurrentProcessWin32Process();

    ASSERT(ppi);

    if (!gbSpiInitialized)
    {
        KeRosDumpStackFrames(NULL, 20);
        //ASSERT(FALSE);
        return FALSE;
    }

    /* Get a pointer to the current Windowstation */
    if (!ppi->prpwinsta)
    {
        ERR("UserSystemParametersInfo called without active windowstation.\n");
        //ASSERT(FALSE);
        //return FALSE;
    }

    /* Do the actual operation */
    ulResult = SpiGetSet(uiAction, uiParam, pvParam, fWinIni);

    /* Did we change something? */
    if (ulResult > 1)
    {
        SpiFixupValues();

        /* Update system metrics */
        InitMetrics();

        /* Send notification to toplevel windows, if requested */
        if (fWinIni & (SPIF_SENDCHANGE | SPIF_SENDWININICHANGE))
        {
            /* Send WM_SETTINGCHANGE to all toplevel windows */
            co_IntSendMessageTimeout(HWND_BROADCAST,
                                     WM_SETTINGCHANGE,
                                     (WPARAM)uiAction,
                                     (LPARAM)ulResult,
                                     SMTO_NORMAL,
                                     100,
                                     &ulResult);
        }
        ulResult = 1;
    }

    return ulResult;
}

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