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MCI_LOAD command

The MCI_LOAD command loads a file. Digital-video and video-overlay devices recognize this command.

To send this command, call the mciSendCommand function with the following parameters.



MCIERROR mciSendCommand(
  MCIDEVICEID wDeviceID, 
  MCI_LOAD, 
  DWORD dwFlags, 
  (DWORD) (LPMCI_LOAD_PARMS) lpLoad
);


Parameters

wDeviceID

Device identifier of the MCI device that is to receive the command message.

dwFlags

MCI_NOTIFY, MCI_WAIT, or, for digital-video devices, MCI_TEST. For information about these flags, see The Wait, Notify, and Test Flags.

lpLoad

Pointer to an MCI_LOAD_PARMS structure. (Devices with additional parameters might replace this structure with a device-specific structure. For digital-video devices, the lpLoad parameter points to an MCI_DGV_LOAD_PARMS structure.)

Return Value

Returns zero if successful or an error otherwise.

Remarks

The following additional flag applies to all devices supporting MCI_LOAD:

MCI_LOAD_FILE

The lpfilename member of the structure identified by lpLoad contains an address of a buffer containing the filename.

The following additional flag is used with the overlay device type:

MCI_OVLY_RECT

The rc member of the structure identified by lpLoad contains a valid display rectangle that identifies the area of the video buffer to update.

For video-overlay devices, the lpLoad parameter points to an MCI_OVLY_LOAD_PARMS structure.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Mmsystem.h (include Windows.h)

See also

MCI
MCI Commands

 

 

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