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      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,__uuidof(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,__uuidof(IDispatch));
    197 #endif
    198 #if defined(__IPictureDisp_INTERFACE_DEFINED__)
    199 #if !defined(Picture)
    200   struct Picture : IPictureDisp {};
    201 #endif
    202 _COM_SMARTPTR_TYPEDEF(Picture,__uuidof(IDispatch));
    203 #endif
    204 
    205 #include "comdefsp.h"
    206 #endif
    207 #endif
    208 
    209 #endif /* __cplusplus */
    210 
    211 #endif
    212