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IMDSPDeviceControl::GetCapabilities

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The GetCapabilities method retrieves the capabilities mask for the device with which this control interface is associated. The capabilities describe the methods of the device control that are supported by the media device.

Syntax

HRESULT GetCapabilities(
  DWORD*  pdwCapabilitiesMask
);

Parameters

pdwCapabilitiesMask

[out]  Pointer to a DWORD containing the capabilities of the device. The following flags can be returned in this variable.

Flag Description
MDM_DEVICECAP_CANPLAY The media device can play MP3 audio.
MDM_DEVICECAP_CANSTREAMPLAY The media device can play streaming audio directly from the host computer.
MDM_DEVICECAP_CANRECORD The media device can record audio.
MDM_DEVICECAP_CANSTREAMRECORD The media device can record streaming audio directly to the host computer.
MDM_DEVICECAP_CANPAUSE The media device can pause during play or record operations.
MDM_DEVICECAP_CANRESUME The media device can resume an operation from a pause command.
MDM_DEVICECAP_CANSTOP The media device can stop playing before the end of a file.
MDM_DEVICECAP_CANSEEK The media device can seek to a position other than the beginning of a file.

Return Values

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK The method succeeded.
E_INVALIDARG The pdwCapabilitiesMask parameter is an invalid or NULL pointer.
E_FAIL An unspecified error occurred.

Requirements

Header: Defined in wmsp.idl.

Library: mssachlp.lib

See Also