How do I use SystemParametersInfo?

[vitkuz573]

And I'm trying to get the work area via SystemParametersInfo, but I don't understand how to use it correctly?

My code:

public static unsafe Rectangle WorkingArea
{
    get
    {
        fixed (RECT* rc = new RECT())
        {
            SystemParametersInfo(SYSTEM_PARAMETERS_INFO_ACTION.SPI_GETWORKAREA, 0, rc, 0);
            return Rectangle.FromLTRB(rc.left, rc.top, rc.right, rc.bottom);
        }
    }
}

[vitkuz573]

The issue is resolved as follows:

public static unsafe Rectangle WorkingArea
{
    get
    {
        var rc = new RECT();
        SystemParametersInfo(SYSTEM_PARAMETERS_INFO_ACTION.SPI_GETWORKAREA, 0, &rc, 0);
        return Rectangle.FromLTRB(rc.left, rc.top, rc.right, rc.bottom);
    }
}