IWMDMStorageGlobals::GetTotalBad

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The GetTotalBad method retrieves the total amount of unusable space on the storage medium, in bytes.

Syntax

HRESULT GetTotalBad(
  DWORD*  pdwBadLow,
  DWORD*  pdwBadHigh
);

Parameters

pdwBadLow

[out]  Pointer to a DWORD that receives the low-order bytes identifying the amount of unusable space.

pdwBadHigh

[out]  Pointer to a DWORD that receives the high-order bytes identifying the amount of unusable space.

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 A parameter is an invalid or NULL pointer.
E_FAIL An unspecified error occurred.
WMDM_E_NOTCERTIFIED The caller is not certified.

Remarks

To determine the amount of storage space in use by the medium for file management, subtract the number of bad bytes identified by using the GetTotalBad method from the number of free bytes identified by using GetTotalFree.

Requirements

Header: Defined in wmdm.idl.

Library: mssachlp.lib

See Also