GetVolumeGUID Method

Retrieves the volume GUID of the device targeted by a filesystem operation.

Syntax

ANSI (Cross Platform)
char* GetVolumeGUID();

Unicode (Windows)
LPWSTR GetVolumeGUID();
#define MID_CBMONITOR_GETVOLUMEGUID 18

CBFSFILTER_EXTERNAL int CBFSFILTER_CALL CBFSFilter_CBMonitor_Do(void *lpObj, int methid, int cparam, void *param[], int cbparam[], int64 *lpllVal);

Remarks

This method can be called within events fired for filesystem operations to retrieve the volume GUID of the device targeted by the operation, returned in the Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} format. If the query fails, this method returns empty string.

Volume GUIDs can be used to enumerate the mounting points of a device using the Windows API's GetVolumePathNamesForVolumeName function.

Note: This method can only be called within events.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.
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CBFS Filter 2020 C++ Edition - Version 20.0 [Build 8317]