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buffer.cpp
Package: shell.rar　[view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 1k
Category:

Windows Kernel

Development Platform:

Visual C++

buffer.cpp：Code Content
  1. /*****************************************************************/
  2. /**   Microsoft Windows for Workgroups **/
  3. /**       Copyright (C) Microsoft Corp., 1991-1992 **/
  4. /*****************************************************************/ 
  6. /* BUFFER.CPP -- Implementation of BUFFER class.
  7.  *
  8.  * History:
  9.  * 03/24/93 gregj Created
  10.  * 10/25/93 gregj Use shell232.dll routines
  11.  */
  13. #include "npcommon.h"
  14. #include "buffer.h"
  15. #include <netlib.h>
  17. BOOL BUFFER::Alloc( UINT cbBuffer )
  18. {
  19. _lpBuffer = (LPSTR)::MemAlloc(cbBuffer);
  20. if (_lpBuffer != NULL) {
  21. _cb = cbBuffer;
  22. return TRUE;
  23. }
  24. return FALSE;
  25. }
  27. BOOL BUFFER::Realloc( UINT cbNew )
  28. {
  29. LPVOID lpNew = ::MemReAlloc(_lpBuffer, cbNew);
  30. if (lpNew == NULL)
  31. return FALSE;
  33. _lpBuffer = (LPSTR)lpNew;
  34. _cb = cbNew;
  35. return TRUE;
  36. }
  38. BUFFER::BUFFER( UINT cbInitial /* =0 */ )
  39.   : BUFFER_BASE(),
  40. _lpBuffer( NULL )
  41. {
  42. if (cbInitial)
  43. Alloc( cbInitial );
  44. }
  46. BUFFER::~BUFFER()
  47. {
  48. if (_lpBuffer != NULL) {
  49. ::MemFree(_lpBuffer);
  50. _lpBuffer = NULL;
  51. }
  52. }