IWMDMStorageControl::Insert method (mswmdm.h)

The Insert method puts content into the storage on the device.


  [in]  UINT           fuMode,
  [in]  LPWSTR         pwszFile,
  [in]  IWMDMOperation *pOperation,
  [in]  IWMDMProgress  *pProgress,
  [out] IWMDMStorage   **ppNewObject


[in] fuMode

A bitwise OR of the following values. The following table lists the processing modes that can be specified in the fuMode parameter. You must specify exactly one of the first two modes, exactly one of the STORAGECONTROL modes, and exactly one of the CONTENT modes. If both WMDM_MODE_BLOCK and WMDM_MODE_THREAD are specified, block mode is used.

Combinations Mode Description
Exactly one of: WMDM_MODE_BLOCK The operation is performed using block mode processing. The call will not return until the operation is finished.
WMDM_MODE_THREAD The operation is performed using thread mode processing. The call will return immediately, and the operation is performed in a background thread.
Exactly one of: WMDM_STORAGECONTROL_INSERTBEFORE The object is inserted before the current object.
WMDM_STORAGECONTROL_INSERTAFTER The object is inserted after the current object.
WMDM_STORAGECONTROL_INSERTINTO The object is inserted into the current object. This will only work if the current object is a folder.
Exactly one of: WMDM_CONTENT_FILE The content being inserted is a file.
WMDM_CONTENT_FOLDER The content being inserted is a folder. This will not transfer the contents of the folder.
WMDM_CONTENT_OPERATIONINTERFACE The content being inserted is an operation interface. The data for the content should be written to the application-implemented IWMDMOperation interface.
Zero or more of: WMDM_FILE_CREATE_OVERWRITE The object will replace the current object.
WMDM_MODE_QUERY A test is performed to determine whether the insert operation could succeed, but the insert will not be performed.
WMDM_MODE_PROGRESS The method should return progress notifications through pProgress.
Zero or one of: WMDM_MODE_TRANSFER_PROTECTED The insertion is in protected transfer mode.
WMDM_MODE_TRANSFER_UNPROTECTED The insertion is in unprotected transfer mode.

[in] pwszFile

Pointer to a wide-character null-terminated string indicating where to find the content for the insert operation. This parameter must be NULL if WMDM_CONTENT_OPERATIONINTERFACE is specified in fuMode.

[in] pOperation

Optional pointer to an IWMDMOperation interface, to control the transfer of content to a media device. If specified, fuMode must include the WMDM_CONTENT_OPERATIONINTERFACE flag. This parameter must be NULL if WMDM_CONTENT_FILE or WMDM_CONTENT_FOLDER is specified in fuMode.

[in] pProgress

Optional pointer to an IWMDMProgress interface to be used by Windows Media Device Manager to report progress back to the application. If this is used, fuMode should include WMDM_MODE_PROGRESS.

[out] ppNewObject

Pointer to an IWMDMStorage interface that will contain the new content. The caller must release this interface when finished with it.

Return value

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 extensive list of possible error codes, see Error Codes.


If the device supports IWMDMStorageControl3::Insert3, that is the preferred method to use.

The name and extension of the object saved on the device will be the same as the name and extension of the source file (if pOperation is NULL).

If the WMDM_MODE_THREAD flag is specified, you should obtain completion status by calling either IWMDMProgress2::End2 or IWMDMProgress3::End3. These methods will ensure that the operation is complete and will also return an HRESULT with success or failure information.

The Insert method does not guarantee that the device supports ordered file insertion, but it provides the flags WMDM_STORAGECONTROL_INSERTBEFORE and WMDM_STORAGECONTROL_INSERTAFTER in case it does. If the file system does not support ordering (for instance, FAT32), WMDM_STORAGECONTROL_INSERTBEFORE and WMDM_STORAGECONTROL_INSERTAFTER will simply insert the new storage object at the same level as the current object in the file system hierarchy.

If an application uses WMDM_MODE_THREAD and passes a non-nullpProgress parameter, the application must ensure that the object to which pProgress belongs is not destroyed until the insert operation completes, because Windows Media Device Manager will send progress notifications to this object. This object can be destroyed only after it receives an End notification. Failure to do this will result in access violations.


Target Platform Windows
Header mswmdm.h
Library Mssachlp.lib

See also

IWMDMStorageControl Interface




Writing Files to the Device