SupportODXReadWrite Property

Whether the virtual filesystem supports ODX (Offloaded Data Transfer) operations.


int GetSupportODXReadWrite();
int SetSupportODXReadWrite(int bSupportODXReadWrite);
BOOL GetSupportODXReadWrite();
INT SetSupportODXReadWrite(BOOL bSupportODXReadWrite);

Default Value



This property specifies whether the virtual filesystem should indicate to the system that it supports ODX (Offloaded Data Transfer) operations. Refer to Microsoft's Offloaded Data Transfer article for more information.

If this property is enabled, the application must properly handle the OffloadReadFile and OffloadWriteFile events, which will fire anytime the OS sends an offload read or offload write request to the virtual filesystem.

Note: This property cannot be changed when Active is true, and cannot be changed within events.

This property is not available at design time.

Data Type


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CBFS Connect 2020 C++ Edition - Version 20.0 [Build 7545]