reactos/lib/sdk/comsupp/comsupp.cpp

   1 /*
   2  * PROJECT:         ReactOS crt library
   3  * LICENSE:         GPLv2+ - See COPYING in the top level directory
   4  * PURPOSE:         Compiler support for COM
   5  * PROGRAMMER:      Thomas Faber
   6  */
   7
   8 #include <stdarg.h>
   9
  10 #define WIN32_NO_STATUS
  11 #define _INC_WINDOWS
  12
  13 #include <windef.h>
  14 #include <winbase.h>
  15 #include <comdef.h>
  16
  17 /* comdef.h */
  18 typedef void WINAPI COM_ERROR_HANDLER(HRESULT, IErrorInfo *);
  19 static COM_ERROR_HANDLER *com_error_handler;
  20
  21 void WINAPI _com_raise_error(HRESULT hr, IErrorInfo *perrinfo)
  22 {
  23     throw _com_error(hr, perrinfo);
  24 }
  25
  26 void WINAPI _set_com_error_handler(COM_ERROR_HANDLER *phandler)
  27 {
  28     com_error_handler = phandler;
  29 }
  30
  31 void WINAPI _com_issue_error(HRESULT hr)
  32 {
  33     com_error_handler(hr, NULL);
  34 }
  35
  36 void WINAPI _com_issue_errorex(HRESULT hr, IUnknown *punk, REFIID riid)
  37 {
  38     void *pv;
  39     IErrorInfo *perrinfo = NULL;
  40
  41     if (SUCCEEDED(punk->QueryInterface(riid, &pv)))
  42     {
  43         ISupportErrorInfo *pserrinfo = static_cast<ISupportErrorInfo *>(pv);
  44         if (pserrinfo->InterfaceSupportsErrorInfo(riid) == S_OK)
  45             (void)GetErrorInfo(0, &perrinfo);
  46         pserrinfo->Release();
  47     }
  48
  49     com_error_handler(hr, perrinfo);
  50 }
  51
  52 /* comutil.h */
  53 _variant_t vtMissing(DISP_E_PARAMNOTFOUND, VT_ERROR);