reactos/sdk/include/crt/comdef.h

   1 /**
   2  * This file has no copyright assigned and is placed in the Public Domain.
   3  * This file is part of the mingw-w64 runtime package.
   4  * No warranty is given; refer to the file DISCLAIMER.PD within this package.
   5  */
   6 #ifndef _INC_COMDEF
   7 #define _INC_COMDEF
   8
   9 #include <_mingw.h>
  10
  11 #ifndef RC_INVOKED
  12
  13 #ifndef __cplusplus
  14 #error Native Compiler support only available in C++ compiler
  15 #endif
  16
  17 #include <ole2.h>
  18 #include <olectl.h>
  19 #include <comutil.h>
  20
  21 #ifndef WINAPI
  22 #define WINAPI __stdcall
  23 #endif
  24
  25 #ifdef __cplusplus
  26
  27 class _com_error;
  28 void WINAPI _com_raise_error(HRESULT hr,IErrorInfo *perrinfo = 0);
  29 void WINAPI _set_com_error_handler(void (WINAPI *pHandler)(HRESULT hr,IErrorInfo *perrinfo));
  30 void WINAPI _com_issue_error(HRESULT);
  31 void WINAPI _com_issue_errorex(HRESULT,IUnknown*,REFIID);
  32 HRESULT WINAPI _com_dispatch_propget(IDispatch*,DISPID,VARTYPE,void*);
  33 HRESULT __cdecl _com_dispatch_propput(IDispatch*,DISPID,VARTYPE,...);
  34 HRESULT __cdecl _com_dispatch_method(IDispatch*,DISPID,WORD,VARTYPE,void*,const wchar_t*,...);
  35 HRESULT WINAPI _com_dispatch_raw_propget(IDispatch*,DISPID,VARTYPE,void*) throw();
  36 HRESULT __cdecl _com_dispatch_raw_propput(IDispatch*,DISPID,VARTYPE,...) throw();
  37 HRESULT __cdecl _com_dispatch_raw_method(IDispatch*,DISPID,WORD,VARTYPE,void*,const wchar_t*,...) throw();
  38
  39 class _com_error {
  40 public:
  41   _com_error(HRESULT hr,IErrorInfo *perrinfo = NULL,bool fAddRef = false) throw();
  42   _com_error(const _com_error &that) throw();
  43   virtual ~_com_error() throw();
  44   _com_error &operator=(const _com_error &that) throw();
  45   HRESULT Error() const throw();
  46   WORD WCode() const throw();
  47   IErrorInfo *ErrorInfo() const throw();
  48   _bstr_t Description() const;
  49   DWORD HelpContext() const throw();
  50   _bstr_t HelpFile() const;
  51   _bstr_t Source() const;
  52   GUID GUID_() const throw();
  53   const TCHAR *ErrorMessage() const throw();
  54   static HRESULT WCodeToHRESULT(WORD wCode) throw();
  55   static WORD HRESULTToWCode(HRESULT hr) throw();
  56 private:
  57   void Dtor() throw();
  58   void Ctor(const _com_error &that) throw();
  59   enum {
  60     WCODE_HRESULT_FIRST = MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF,0x200),WCODE_HRESULT_LAST = MAKE_HRESULT(SEVERITY_ERROR,FACILITY_ITF+1,0) - 1
  61   };
  62   HRESULT m_hresult;
  63   IErrorInfo *m_perrinfo;
  64   mutable TCHAR *m_pszMsg;
  65 };
  66
  67 inline _com_error::_com_error(HRESULT hr,IErrorInfo *perrinfo,bool fAddRef) throw() : m_hresult(hr),m_perrinfo(perrinfo),m_pszMsg(NULL) {
  68   if(m_perrinfo!=NULL && fAddRef) m_perrinfo->AddRef();
  69 }
  70
  71 inline _com_error::_com_error(const _com_error &that) throw() {
  72   Ctor(that);
  73 }
  74
  75 inline _com_error::~_com_error() throw() {
  76   Dtor();
  77 }
  78
  79 inline _com_error &_com_error::operator=(const _com_error &that) throw() {
  80   if(this!=&that) {
  81     Dtor();
  82     Ctor(that);
  83   }
  84   return *this;
  85 }
  86
  87 inline HRESULT _com_error::Error() const throw() { return m_hresult; }
  88 inline WORD _com_error::WCode() const throw() { return HRESULTToWCode(m_hresult); }
  89
  90 inline IErrorInfo *_com_error::ErrorInfo() const throw() {
  91   if(m_perrinfo!=NULL) m_perrinfo->AddRef();
  92   return m_perrinfo;
  93 }
  94
  95 inline _bstr_t _com_error::Description() const {
  96   BSTR bstr = NULL;
  97   if(m_perrinfo!=NULL) m_perrinfo->GetDescription(&bstr);
  98   return _bstr_t(bstr,false);
  99 }
 100
 101 inline DWORD _com_error::HelpContext() const throw() {
 102   DWORD dwHelpContext = 0;
 103   if(m_perrinfo!=NULL) m_perrinfo->GetHelpContext(&dwHelpContext);
 104   return dwHelpContext;
 105 }
 106
 107 inline _bstr_t _com_error::HelpFile() const {
 108   BSTR bstr = NULL;
 109   if(m_perrinfo!=NULL)  m_perrinfo->GetHelpFile(&bstr);
 110   return _bstr_t(bstr,false);
 111 }
 112
 113 inline _bstr_t _com_error::Source() const {
 114   BSTR bstr = NULL;
 115   if(m_perrinfo!=NULL) m_perrinfo->GetSource(&bstr);
 116   return _bstr_t(bstr,false);
 117 }
 118
 119 inline _GUID _com_error::GUID_() const throw() {
 120   _GUID guid;
 121   memset (&guid, 0, sizeof (_GUID));
 122   if(m_perrinfo!=NULL) m_perrinfo->GetGUID(&guid);
 123   return guid;
 124 }
 125
 126 inline const TCHAR *_com_error::ErrorMessage() const throw() {
 127   if(!m_pszMsg) {
 128     FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,NULL,m_hresult,MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),(LPTSTR)&m_pszMsg,0,NULL);
 129     if(m_pszMsg!=NULL) {
 130       int nLen = lstrlen(m_pszMsg);
 131       if(nLen > 1 && m_pszMsg[nLen - 1]=='\n') {
 132         m_pszMsg[nLen-1] = 0;
 133         if(m_pszMsg[nLen - 2]=='\r') m_pszMsg[nLen-2] = 0;
 134       }
 135     } else {
 136       m_pszMsg = (LPTSTR)LocalAlloc(0,32 *sizeof(TCHAR));
 137       if(m_pszMsg!=NULL) {
 138         WORD wCode = WCode();
 139         if(wCode!=0) {
 140         _COM_PRINTF_S_1(m_pszMsg,32,TEXT("IDispatch error #%d"),wCode);
 141         } else {
 142         _COM_PRINTF_S_1(m_pszMsg,32,TEXT("Unknown error 0x%0lX"),m_hresult);
 143         }
 144       }
 145     }
 146   }
 147   return m_pszMsg;
 148 }
 149
 150 inline HRESULT _com_error::WCodeToHRESULT(WORD wCode) throw() { return wCode >= 0xFE00 ? WCODE_HRESULT_LAST : WCODE_HRESULT_FIRST + wCode; }
 151 inline WORD _com_error::HRESULTToWCode(HRESULT hr) throw() { return (hr >= WCODE_HRESULT_FIRST && hr <= WCODE_HRESULT_LAST) ? WORD(hr - WCODE_HRESULT_FIRST) : 0; }
 152
 153 inline void _com_error::Dtor() throw() {
 154   if(m_perrinfo!=NULL) m_perrinfo->Release();
 155   if(m_pszMsg!=NULL) LocalFree((HLOCAL)m_pszMsg);
 156 }
 157
 158 inline void _com_error::Ctor(const _com_error &that) throw() {
 159   m_hresult = that.m_hresult;
 160   m_perrinfo = that.m_perrinfo;
 161   m_pszMsg = NULL;
 162   if(m_perrinfo!=NULL) m_perrinfo->AddRef();
 163 }
 164
 165 typedef int __missing_type__;
 166
 167 #if !defined(_COM_SMARTPTR)
 168 #if !defined(_INC_COMIP)
 169 #include <comip.h>
 170 #endif
 171 #define _COM_SMARTPTR _com_ptr_t
 172 #define _COM_SMARTPTR_LEVEL2 _com_IIID
 173 #endif
 174 #if defined(_COM_SMARTPTR)
 175 #if !defined(_COM_SMARTPTR_TYPEDEF)
 176 #if defined(_COM_SMARTPTR_LEVEL2)
 177 #define _COM_SMARTPTR_TYPEDEF(Interface,IID) UUID IIDArgForTypedef ## Interface = IID; typedef _COM_SMARTPTR< _COM_SMARTPTR_LEVEL2<Interface, &IIDArgForTypedef ## Interface > > Interface ## Ptr
 178 #else
 179 #define _COM_SMARTPTR_TYPEDEF(Interface,IID) UUID IIDArgForTypedef ## Interface  = IID; typedef _COM_SMARTPTR<Interface,&IIDArgForTypedef ## Interface > Interface ## Ptr
 180 #endif
 181 #endif
 182 #endif
 183
 184 #if !defined(_COM_NO_STANDARD_GUIDS_)
 185 #if defined(__IFontDisp_INTERFACE_DEFINED__)
 186 #if !defined(Font)
 187   struct Font : IFontDisp {};
 188 #endif
 189 _COM_SMARTPTR_TYPEDEF(Font, IID_IDispatch);
 190
 191 #endif
 192 #if defined(__IFontEventsDisp_INTERFACE_DEFINED__)
 193 #if !defined(FontEvents)
 194   struct FontEvents : IFontEventsDisp {};
 195 #endif
 196 _COM_SMARTPTR_TYPEDEF(FontEvents, IID_IDispatch);
 197 #endif
 198 #if defined(__IPictureDisp_INTERFACE_DEFINED__)
 199 #if !defined(Picture)
 200   struct Picture : IPictureDisp {};
 201 #endif
 202 _COM_SMARTPTR_TYPEDEF(Picture, IID_IDispatch);
 203 #endif
 204
 205 #include "comdefsp.h"
 206 #endif
 207 #endif
 208
 209 #endif /* __cplusplus */
 210
 211 #endif