NdrUserMarshalUnmarshall function (rpcndr.h)
The NdrUserMarshalUnmarshall function calls a user-defined unmarshal routine to unmarshal data with the attribute.
Syntax
unsigned char * NdrUserMarshalUnmarshall(
[in, out] PMIDL_STUB_MESSAGE pStubMsg,
[in] unsigned char **ppMemory,
[in] PFORMAT_STRING pFormat,
[in] unsigned char fMustAlloc
);
Parameters
[in, out] pStubMsg
Pointer to a MIDL_STUB_MESSAGE structure that maintains the current status of the RPC stub. The MIDL_STUB_MESSAGE structure is for internal use only, and must not be modified.
[in] ppMemory
Pointer to user data object to be unmarshalled.
[in] pFormat
Format string description of the pointer.
[in] fMustAlloc
Flag that specifies whether the stub must allocate the memory into which the user data object is to be unmarshalled. Specify TRUE if RPC must allocate ppMemory.
Return value
Returns NULL upon success. Returns one of the following exception codes upon error.
| Error | Description |
|---|---|
| STATUS_ACCESS_VIOLATION | An access violation occurred. |
| RPC_S_INTERNAL_ERROR | An error occurred in RPC. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps | UWP apps] |
| Minimum supported server | Windows 2000 Server [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | rpcndr.h |
| Library | Rpcrt4.lib |
| DLL | Rpcrt4.dll |