private void comboBoxVF_SelectedIndexChanged(object sender, EventArgs e)
{
M_VID_PROPS vidProps = new M_VID_PROPS();
string strFormat;
m_objFile.FormatVideoGetByIndex(eMFormatType.eMFT_Convert, comboBoxVF.SelectedIndex, out vidProps, out strFormat);
m_objFile.FormatVideoSet(eMFormatType.eMFT_Convert, ref vidProps);
}
void SetProps()
{
m_objFile.FormatVideoSet(eMFormatType.eMFT_Convert, ref props);
}