www.pudn.com > Winmobile.zip > SimpleBlockModeInvoke.cpp

// SimpleBlockModeInvoke.cpp : Defines the entry point for the DLL application. 
// 
 
#include "stdafx.h" 
 
BOOL APIENTRY DllMain( HANDLE hModule,  
                       DWORD  ul_reason_for_call,  
                       LPVOID lpReserved 
					 ) 
{ 
    return TRUE; 
} 
 
//-------------------------------------------------------------- 
// UpperCaseInvoke -- Win32 device-side function 
//-------------------------------------------------------------- 
extern "C" HRESULT __declspec(dllexport)  
UpperCaseInvoke( DWORD cbInput, BYTE  *pInput, 
   DWORD *pcbOutput, BYTE  **ppOutput, 
   IRAPIStream *pIRAPIStream ) 
{ 
   // Init output values. 
   *pcbOutput = 0; 
   *ppOutput = (BYTE *)NULL; 
 
   if (cbInput != 0) 
   { 
      // Check for a valid input parameter. 
      if (IsBadReadPtr(pInput, cbInput)) 
         return E_INVALIDARG; 
 
      // Allocate a buffer 
      BYTE * pData = (BYTE *)LocalAlloc(LPTR, cbInput); 
      if (pData == NULL) 
         return E_OUTOFMEMORY; 
 
      // Copy bytes 
      memcpy(pData, pInput, cbInput); 
 
      // Make upper-case 
      LPWSTR lpwstr = (LPWSTR)pData; 
      wcsupr(lpwstr); 
 
      // Send return data to caller. 
      *pcbOutput = cbInput; 
      *ppOutput = pData; 
   } 
 
   return S_OK; 
 
} //UpperCaseInvoke