RpcBindingCopy function (rpcdce.h)

The RpcBindingCopy function copies binding information and creates a new binding handle.


RPC_STATUS RpcBindingCopy(
  RPC_BINDING_HANDLE *DestinationBinding



Server binding handle whose referenced binding information is copied.


Returns a pointer to the server binding handle that refers to the copied binding information.

Return value

Value Meaning
The call succeeded.
The binding handle was invalid.
This was the wrong kind of binding for the operation.
Note  For a list of valid error codes, see RPC Return Values.


The RpcBindingCopy function copies the server-binding information referenced by the SourceBinding parameter. RpcBindingCopy uses the DestinationBinding parameter to return a new server binding handle for the copied binding information. RpcBindingCopy also copies the authentication information from the SourceBinding parameter to the DestinationBinding parameter.

An application uses RpcBindingCopy when it wants to prevent a change being made to binding information by one thread from affecting the binding information used by other threads.

Once an application calls RpcBindingCopy, operations performed on the SourceBinding binding handle do not affect the binding information referenced by the DestinationBinding binding handle. Similarly, operations performed on the DestinationBinding binding handle do not affect the binding information referenced by the SourceBinding binding handle.

If an application wants one thread's changes to binding information to affect the binding information used by other threads, the application should share a single binding handle across the threads. In this case, the application is responsible for binding-handle concurrency control.

When an application is finished using the binding handle specified by the DestinationBinding parameter, the application should call the RpcBindingFree function to release the memory used by the DestinationBinding binding handle and its referenced binding information.

Note  Microsoft RPC supports RpcBindingCopy only in client applications, not in server applications.


Minimum supported client Windows 2000 Professional [desktop apps | UWP apps]
Minimum supported server Windows 2000 Server [desktop apps | UWP apps]
Target Platform Windows
Header rpcdce.h (include Rpc.h)
Library Rpcrt4.lib
DLL Rpcrt4.dll

See also