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Source code of Windows XP (NT5)
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windows-xp/Source/XPSP1/NT/admin/pchealth/pchmars/inc/dllload.h

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  1. //***************************************************************************
  2. // delay load macros ripped from shell\lib\dllload.c
  3. //***************************************************************************
  5. extern HINSTANCE g_hinstShell32;
  7. void _GetProcFromDLL(HMODULE* phmod, LPCSTR pszDLL, FARPROC* ppfn, LPCSTR pszProc);
  9. #define DELAY_LOAD_NAME_EXT_ERR(_hmod, _dll, _ext, _ret, _fnpriv, _fn, _args, _nargs, _err) \
  10. _ret __stdcall _fnpriv _args \
  11. { \
  12. static _ret (__stdcall *_pfn##_fn) _args = NULL; \
  13. _GetProcFromDLL(&_hmod, #_dll "." #_ext, (FARPROC*)&_pfn##_fn, #_fn); \
  14. if (_pfn##_fn) \
  15. return _pfn##_fn _nargs; \
  16. return (_ret)_err; \
  17. }
  19. #define DELAY_LOAD_NAME_ERR(_hmod, _dll, _ret, _fnpriv, _fn, _args, _nargs, _err) \
  20. DELAY_LOAD_NAME_EXT_ERR(_hmod, _dll, DLL, _ret, _fnpriv, _fn, _args, _nargs, _err)
  22. #define DELAY_LOAD_ERR(_hmod, _dll, _ret, _fn, _args, _nargs, _err) \
  23. DELAY_LOAD_NAME_ERR(_hmod, _dll, _ret, _fn, _fn, _args, _nargs, _err)
  25. #define DELAY_LOAD(_hmod, _dll, _ret, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, _ret, _fn, _args, _nargs, 0)
  26. #define DELAY_LOAD_HRESULT(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, HRESULT, _fn, _args, _nargs, E_FAIL)
  27. #define DELAY_LOAD_SAFEARRAY(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, SAFEARRAY *, _fn, _args, _nargs, NULL)
  28. #define DELAY_LOAD_UINT(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, UINT, _fn, _args, _nargs, 0)
  29. #define DELAY_LOAD_INT(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, INT, _fn, _args, _nargs, 0)
  30. #define DELAY_LOAD_BOOL(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, BOOL, _fn, _args, _nargs, FALSE)
  31. #define DELAY_LOAD_BOOLEAN(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, BOOLEAN, _fn, _args, _nargs, FALSE)
  32. #define DELAY_LOAD_DWORD(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, DWORD, _fn, _args, _nargs, FALSE)
  33. #define DELAY_LOAD_LRESULT(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, LRESULT, _fn, _args, _nargs, FALSE)
  34. #define DELAY_LOAD_WNET(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, DWORD, _fn, _args, _nargs, WN_NOT_SUPPORTED)
  35. #define DELAY_LOAD_LPVOID(_hmod, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hmod, _dll, LPVOID, _fn, _args, _nargs, 0)
  37. #define DELAY_LOAD_NAME(_hmod, _dll, _ret, _fn, _fni, _args, _nargs) DELAY_LOAD_NAME_ERR(_hmod, _dll, _ret, _fn, _fni, _args, _nargs, 0)
  38. #define DELAY_LOAD_NAME_HRESULT(_hmod, _dll, _fn, _fni, _args, _nargs) DELAY_LOAD_NAME_ERR(_hmod, _dll, HRESULT, _fn, _fni, _args, _nargs, E_FAIL)
  39. #define DELAY_LOAD_NAME_SAFEARRAY(_hmod, _dll, _fn, _fni, _args, _nargs) DELAY_LOAD_NAME_ERR(_hmod, _dll, SAFEARRAY *, _fn, _fni, _args, _nargs, NULL)
  40. #define DELAY_LOAD_NAME_UINT(_hmod, _dll, _fn, _fni, _args, _nargs) DELAY_LOAD_NAME_ERR(_hmod, _dll, UINT, _fn, _fni, _args, _nargs, 0)
  41. #define DELAY_LOAD_NAME_BOOL(_hmod, _dll, _fn, _fni, _args, _nargs) DELAY_LOAD_NAME_ERR(_hmod, _dll, BOOL, _fn, _fni, _args, _nargs, FALSE)
  42. #define DELAY_LOAD_NAME_DWORD(_hmod, _dll, _fn, _fni, _args, _nargs) DELAY_LOAD_NAME_ERR(_hmod, _dll, DWORD, _fn, _fni, _args, _nargs, 0)
  44. #define DELAY_LOAD_SHELL_ERR_FN(_hinst, _dll, _ret, _fn, _ord, _args, _nargs, _err, _realfn) \
  45. _ret __stdcall _fn _args \
  46. { \
  47. static _ret (__stdcall *_pfn##_fn) _args = NULL; \
  48. _GetProcFromDLL(&_hinst, #_dll ".DLL", (FARPROC*)&_pfn##_fn, (LPCSTR)_ord); \
  49. if (_pfn##_fn) \
  50. return _pfn##_fn _nargs; \
  51. return (_ret)_err; \
  52. }
  54. #define DELAY_LOAD_SHELL_FN(_hinst, _dll, _ret, _fn, _ord, _args, _nargs, _realfn) DELAY_LOAD_SHELL_ERR_FN(_hinst, _dll, _ret, _fn, _ord, _args, _nargs, 0, _realfn)
  55. #define DELAY_LOAD_SHELL_HRESULT_FN(_hinst, _dll, _fn, _ord, _args, _nargs, realfn) DELAY_LOAD_SHELL_ERR_FN(_hinst, _dll, HRESULT, _fn, _ord, _args, _nargs, E_FAIL, _realfn)