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IWMDMDevice::GetStatus

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The GetStatus method retrieves device status information.

Syntax

HRESULT GetStatus(
  DWORD*  pdwStatus
);

Parameters

pdwStatus

[out]  Pointer to a DWORD containing the device status. The possible values returned in pdwStatus are provided in the following table.

Status Description
WMDM_STATUS_READY Windows Media Device Manager and its subcomponents are in a ready state.
WMDM_STATUS_BUSY An operation is ongoing. Evaluate status values to determine the operation.

Return Values

The method returns an HRESULT. All the interface methods in Windows Media Device Manager and service provider can return any of the following classes of error codes:

  • Standard COM error codes
  • Windows error codes converted to HRESULT values
  • Windows Media Device Manager error codes

For a complete list of possible error codes, see Error Codes.

Possible values include, but are not limited to, those in the following table.

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

Remarks

Any status information that can be generated by the device can be retrieved by GetStatus. One or more status values can be returned. All of the status values of all media device interfaces are reported through this call. For example, if any operation is ongoing, a call to GetStatus reports that the device is busy, WMDM_STATUS_BUSY.

Requirements

Header: Defined in wmdm.idl.

Library: mssachlp.lib

See Also