Changing the Current Position

To change the current position in a device element, use the MCI_SEEK command message along with the MCI_TO flag and the MCI_SEEK_PARMS structure. If you use the dwTo member to specify a seek position with MCI_SEEK, you should query the time format and set it, if necessary.

In addition to specifying a position with the dwTo member, you can specify the MCI_SEEK_TO_START or MCI_SEEK_TO_END flags for the dwParam1 parameter of the mciSendCommand function to find the starting and ending positions of the device element. If you use one of these flags, don't specify the MCI_TO flag.