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MCIDRV_RESTORE

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Revision as of 02:28, 26 November 2025 by Martini (talk | contribs) (Created page with "{{DISPLAYTITLE:MCIDRV_RESTORE}} This message is sent from MDM (Media Device Manager) to MCDs (Media Control Drivers) to restore the state of an inactive device context. If this message is received for an active device context, the MCD should save the shareability for the device instance (either shareable or exclusive). See ''ulParam1'' for more details. ==Syntax== <PRE> param1 ULONG ulParam1; →Standard flags.: param2 PVOID pParam2; →Not used.: </PRE> ==Paramet...")
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This message is sent from MDM (Media Device Manager) to MCDs (Media Control Drivers) to restore the state of an inactive device context. If this message is received for an active device context, the MCD should save the shareability for the device instance (either shareable or exclusive). See ulParam1 for more details.

Syntax

param1
ULONG ulParam1; /* Standard flags. */

param2
PVOID pParam2; /* Not used. */

Parameters

ulParam1 (ULONG) - input
This parameter can contain the following standard flags:
  • MCI_WAIT The message is not to be returned until the device context restore is complete.
  • MCI_SHAREABLE Device context is in shareable mode.
  • MCI_EXCLUSIVE Device context is in exclusive mode.
pParam2 (PVOID) - input
Not used.

Returns

rc (ULONG) - returns
The documentation provided does not explicitly list return codes for this message.

Remarks

This section has no remarks.

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