DYNOUTC.C

/******************************************************************************\ 
*       This is a part of the Microsoft Source Code Samples. 
*       Copyright 1995 - 1998 Microsoft Corporation. 
*       All rights reserved. 
*       This source code is only intended as a supplement to 
*       Microsoft Development Tools and/or WinHelp documentation. 
*       See these sources for detailed information regarding the 
*       Microsoft samples programs. 
\******************************************************************************/ 
// 
// Sample code to show server-side 
// memory allocation for an [out] parameter 
// 
// 
#include <stdio.h> 
#include <conio.h> 
#include <stdlib.h> 
#include <assert.h> 
#include <malloc.h> 
#include "dynout.h" 
 
void main(int argc,char **argv) 
{ 
unsigned char *pr = NULL; 
long lSize; 
int i; 
int bOK; 
 
RpcTryExcept 
{ 
for(;;) 
{ 
pr = NULL;// This is *REALLY* important! 
 
GrabChunk(&lSize,&pr); 
 
// quick sanity check 
for (i=0, bOK=TRUE; (i < lSize) && bOK; i++) 
{ 
if (*pr != pr[i]) 
{ 
puts("***Error***"); 
bOK=FALSE; 
break; 
} 
} 
 
printf("Returned %d bytes of '%c'\n",lSize,*pr); 
 
midl_user_free(pr); 
} 
} 
RpcExcept(1) 
{ 
printf("Err: %u\n",RpcExceptionCode()); 
} 
RpcEndExcept 
} 
 
void  __RPC_FAR * __RPC_API midl_user_allocate(size_t len) 
{ 
    return malloc(len); 
} 
 
void __RPC_API midl_user_free(void __RPC_FAR * ptr) 
{ 
 
    free(ptr); 
}