IWMDMStorage::GetSize
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The GetSize method retrieves the size of the storage, in bytes.
Syntax
HRESULT GetSize(DWORD*pdwSizeLow,DWORD*pdwSizeHigh);
Parameters
pdwSizeLow
[out] Pointer to a DWORD specifying the low-order part of the storage object size, in bytes.
pdwSizeHigh
[out] Pointer to a DWORD specifying the high-order part of the storage object size, in bytes.
Return Values
The method returns an HRESULT. All the interface methods in Windows Media Device Manager 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 an extenstive 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
For folders or abstract objects (such as abstract playlists), the size is zero.
Example Code
The following C++ code retrieves the size of a file, in kilobytes.
// Get size of file in kilobytes.
DWORD lowSize = 0;
DWORD highSize = 0;
hr = pStorage->GetSize(&lowSize, &highSize);
//TODO: Display the file size.
Requirements
Header: Defined in mswmdm.h.
Library: mssachlp.lib
See Also