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IDebugBreakpointResolution2::GetResolutionInfo

  • Artikkeli

Gets the breakpoint resolution information that describes this breakpoint.

Syntax

int GetResolutionInfo( 
   enum BPRESI_FIELDS   dwFields,
   BP_RESOLUTION_INFO[] pBPResolutionInfo
);

Parameters

dwFields
[in] A combination of flags from the BPRESI_FIELDS enumeration that determine which fields of the pBPResolutionInfo parameter are to be filled out.

pBPResolutionInfo
[out] The BP_RESOLUTION_INFO structure to be filled in with information about this breakpoint.

Return Value

If successful, returns S_OK; otherwise returns an error code.

Example

The following example implements this method for a simple CDebugBreakpointResolution object that exposes the IDebugBreakpointResolution2 interface.

HRESULT CDebugBreakpointResolution::GetResolutionInfo(
   BPRESI_FIELDS dwFields,
   BP_RESOLUTION_INFO* pBPResolutionInfo)
{
   HRESULT hr;

   if (pBPResolutionInfo)
   {
      // Copy the specified fields of the request information from the class
      // member variable to the local BP_RESOLUTION_INFO variable.
      hr = CopyBP_RESOLUTION_INFO(m_bpResolutionInfo,
                                  *pBPResolutionInfo,
                                  dwFields);
   }
   else
   {
      hr = E_INVALIDARG;
   }

   return hr;
}

HRESULT CDebugBreakpointResolution::CopyBP_RESOLUTION_INFO(
   BP_RESOLUTION_INFO& bpResSrc,
   BP_RESOLUTION_INFO& bpResDest,
   DWORD dwFields)
{
   HRESULT hr = S_OK;

   // Start with a raw copy.
   memcpy(&bpResDest, &bpResSrc, sizeof(BP_RESOLUTION_INFO));

   // The fields in the destination is the result of the AND of
   //  bpInfoSrc.dwFields and dwFields.
   bpResDest.dwFields = dwFields & bpResSrc.dwFields;

   // Fill in the bp location information if the BPRESI_BPRESLOCATION
   //  flag is set in BPRESI_FIELDS.
   if (IsFlagSet(bpResDest.dwFields, BPRESI_BPRESLOCATION))
   {
      // Switch based on the BP_TYPE.
      switch (bpResSrc.bpResLocation.bpType)
      {
         case BPT_CODE:
         {
            // AddRef the IDebugCodeContext2 of the BP_RESOLUTION_CODE structure.
            bpResDest.bpResLocation.bpResLocation.bpresCode.pCodeContext->AddRef();
            break;
         }
         case BPT_DATA:
         {
            // Copy the bstrDataExpr, bstrFunc, and bstrImage of the
            // BP_RESOLUTION_DATA structure.
            bpResDest.bpResLocation.bpResLocation.bpresData.bstrDataExpr =
               SysAllocString(bpResSrc.bpResLocation.bpResLocation.bpresData.bstrDataExpr);
            bpResDest.bpResLocation.bpResLocation.bpresData.bstrFunc =
               SysAllocString(bpResSrc.bpResLocation.bpResLocation.bpresData.bstrFunc);
            bpResSrc.bpResLocation.bpResLocation.bpresData.bstrImage =
               SysAllocString(bpResSrc.bpResLocation.bpResLocation.bpresData.bstrImage);
            break;
         }
         default:
         {
            assert(FALSE);
            // Clear the BPRESI_BPRESLOCATION flag in the BPRESI_FIELDS
            // of the destination BP_RESOLUTION_INFO.
            ClearFlag(bpResDest.dwFields, BPRESI_BPRESLOCATION);
            break;
         }
      }
   }
   // AddRef the IDebugProgram2 if the BPRESI_PROGRAM flag is set in BPRESI_FIELDS.
   if (IsFlagSet(bpResDest.dwFields, BPRESI_PROGRAM))
   {
      bpResDest.pProgram->AddRef();
   }
   // AddRef the IDebugThread2 if the BPRESI_THREAD flag is set in BPRESI_FIELDS.
   if (IsFlagSet(bpResDest.dwFields, BPRESI_THREAD))
   {
      bpResDest.pThread->AddRef();
   }

   return hr;
}

See also