/// <summary>
/// 关闭当前播放文件。
/// </summary>
public void Close()
{
int err;
StringBuilder buf = new StringBuilder(1000);
if (deviceID > 0)
{
Stop();
MCI_GENERIC_PARMS gen = new MCI_GENERIC_PARMS();
err = mciSendCommandA(deviceID, MCI_CLOSE, MCI_WAIT, ref gen);
if (err != 0)
{
mciGetErrorStringA(err, buf, 1000);
//throw new ApplicationException(buf.ToString());
}
deviceID = 0;
devCaps = DevCaps.None;
size = Size.Empty;
if ((int)timer.Tag == 1)
{
timer.Tag = 0;
timer.Stop();
}
}
}
private void GetDevcaps()
{
int devType = 0;
if (GetDevcap(MCI_GETDEVCAPS_CAN_PLAY) > 0)
devCaps = DevCaps.CanPlay;
if (GetDevcap(MCI_GETDEVCAPS_CAN_RECORD) > 0)
devCaps |= DevCaps.CanRecord;
if (GetDevcap(MCI_GETDEVCAPS_CAN_SAVE) > 0)
devCaps |= DevCaps.CanSave;
if (GetDevcap(MCI_GETDEVCAPS_CAN_EJECT) > 0)
devCaps |= DevCaps.CanEject;
if (GetDevcap(MCI_GETDEVCAPS_HAS_VIDEO) > 0)
{
if (ShowHnd() == 0)
devCaps |= DevCaps.CanShowVideo;
}
devType = GetDevcap(MCI_GETDEVCAPS_DEVICE_TYPE);
if (devType == MCI_DEVTYPE_ANIMATION || devType == MCI_DEVTYPE_DIGITAL_VIDEO
|| devType == MCI_DEVTYPE_VCR || devType == MCI_DEVTYPE_OVERLAY)
{
devCaps = devCaps | DevCaps.CanStep;
}
else if (devType == MCI_DEVTYPE_CD_AUDIO)
{
deviceType = DeviceType.CDAudio;
}
else if (devType == MCI_DEVTYPE_VIDEODISC)
{
deviceType = DeviceType.VideoDisc;
}
}
