transmit_as

Article
01/03/2018

The latest version of this topic can be found at transmit_as.

Instructs the compiler to associate a presented type that client and server applications manipulate, with a transmitted type.

Syntax

  
      [ transmit_as(  
   type  
) ]

Parameters

type
Specifies the data type that is transmitted between client and server.

Remarks

The transmit_as C++ attribute has the same functionality as the transmit_as MIDL attribute.

Example

The following code shows a use of the transmit_as attribute:

// cpp_attr_ref_transmit_as.cpp  
// compile with: /LD  
#include "windows.h"  
[module(name="MyLibrary")];  
  
[export] typedef struct _TREE_NODE_TYPE {  
unsigned short data;   
struct _TREE_NODE_TYPE * left;  
struct _TREE_NODE_TYPE * right;   
} TREE_NODE_TYPE;  
  
[export] struct PACKED_NODE {  
   unsigned short data;   // same as normal node  
   int index;   // array index of parent  
};  
  
// A left node recursive built array of  
// the nodes in the tree.  Can be unpacked with  
// that knowledge  
[export] typedef struct _TREE_XMIT_TYPE {  
   int count;  
   [size_is(count)] PACKED_NODE node[];  
} TREE_XMIT_TYPE;  
  
[transmit_as(TREE_XMIT_TYPE)] typedef TREE_NODE_TYPE * TREE_TYPE;

Requirements

Attribute Context

Applies to	`typedef`
Repeatable	No
Required attributes	None
Invalid attributes	None

For more information about the attribute contexts, see Attribute Contexts.

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