IDebugBreakpointRequest2::GetRequestInfo
获取描述此断点请求的断点请求信息。
语法
参数
dwFields
[in]BPREQI_FIELDS枚举中的标志的组合，用于确定要填写参数中的pBPRequestInfo哪些字段。
pBPRequestInfo
[out]指定要 用断点请求的说明填充的BP_REQUEST_INFO 结构。
返回值
如果成功，则返回 S_OK；否则，返回错误代码。
示例
以下示例演示如何为公开 IDebugBreakpointRequest2 接口的简单CDebugBreakpointRequest对象实现此方法。
HRESULT CDebugBreakpointRequest::GetRequestInfo(
BPREQI_FIELDS dwFields,
BP_REQUEST_INFO* pBPRequestInfo)
{
HRESULT hr;
if (pBPRequestInfo)
{
// Copy the specified fields of the request info from the class
// member variable to the local BP_REQUEST_INFO variable.
hr = CopyBP_REQUEST_INFO(m_bpRequestInfo,
*pBPRequestInfo, dwFields);
}
else
{
hr = E_INVALIDARG;
}
return hr;
}
HRESULT CDebugBreakpointRequest::CopyBP_REQUEST_INFO(
BP_REQUEST_INFO& bpReqSrc,
BP_REQUEST_INFO& bpReqDest,
DWORD dwFields)
{
HRESULT hr = S_OK;
// Start with a raw copy.
memcpy(&bpReqDest, &bpReqSrc, sizeof (BP_REQUEST_INFO));
// The fields in the destination are the result of the AND of
// bpReqSrc.dwFields and dwFields.
bpReqDest.dwFields = dwFields & bpReqSrc.dwFields;
// Fill in the bp location information if the BPREQI_BPLOCATION flag is
// set in BPREQI_FIELDS.
if (IsFlagSet(bpReqDest.dwFields, BPREQI_BPLOCATION))
{
// Switch based on the BP_LOCATION_TYPE.
switch (bpReqSrc.bpLocation.bpLocationType)
{
case BPLT_CODE_FILE_LINE:
{
// Copy the bstrContext and AddRef the IDebugDocumentPosition2
// of the BP_LOCATION_CODE_FILE_LINE structure.
bpReqDest.bpLocation.bpLocation.bplocCodeFileLine.bstrContext =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeFileLine.bstrContext);
bpReqDest.bpLocation.bpLocation.bplocCodeFileLine.pDocPos->AddRef();
break;
}
case BPLT_CODE_FUNC_OFFSET:
{
// Copy the bstrContext and AddRef the IDebugFunctionPosition2
// of the BP_LOCATION_CODE_FUNC_OFFSET structure.
bpReqDest.bpLocation.bpLocation.bplocCodeFuncOffset.bstrContext =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeFuncOffset.bstrContext);
bpReqDest.bpLocation.bpLocation.bplocCodeFuncOffset.pFuncPos->AddRef();
break;
}
case BPLT_CODE_CONTEXT:
{
// AddRef the IDebugCodeContext2 of the BP_LOCATION_CODE_CONTEXT
// structure.
bpReqDest.bpLocation.bpLocation.bplocCodeContext.pCodeContext->AddRef();
break;
}
case BPLT_CODE_STRING:
{
// Copy the bstrContext and bstrCodeExpr of the BP_LOCATION_CODE_STRING
// structure.
bpReqDest.bpLocation.bpLocation.bplocCodeString.bstrContext =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeString.bstrContext);
bpReqDest.bpLocation.bpLocation.bplocCodeString.bstrCodeExpr =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeString.bstrCodeExpr);
break;
}
case BPLT_CODE_ADDRESS:
{
// Copy the bstrContext, bstrModuleUrl, bstrFunction, and bstrAddress
// of the BP_LOCATION_CODE_ADDRESS structure.
bpReqDest.bpLocation.bpLocation.bplocCodeAddress.bstrContext =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeAddress.bstrContext);
bpReqDest.bpLocation.bpLocation.bplocCodeAddress.bstrModuleUrl =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeAddress.bstrModuleUrl);
bpReqDest.bpLocation.bpLocation.bplocCodeAddress.bstrFunction =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeAddress.bstrFunction);
bpReqDest.bpLocation.bpLocation.bplocCodeAddress.bstrAddress =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocCodeAddress.bstrAddress);
break;
}
case BPLT_DATA_STRING:
{
// Conditional AddRef of the IDebugThread2 of the BP_LOCATION_DATA_STRING
// structure.
if (bpReqDest.bpLocation.bpLocation.bplocDataString.pThread)
{
bpReqDest.bpLocation.bpLocation.bplocDataString.pThread->AddRef();
}
// Copy the bstrContext and bstrDataExpr of the BP_LOCATION_DATA_STRING
// structure.
bpReqDest.bpLocation.bpLocation.bplocDataString.bstrContext =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocDataString.bstrContext);
bpReqDest.bpLocation.bpLocation.bplocDataString.bstrDataExpr =
SysAllocString(bpReqSrc.bpLocation.bpLocation.bplocDataString.bstrDataExpr);
break;
}
case BPLT_RESOLUTION:
{
// AddRef of the IDebugBreakpointResolution2 of the BP_LOCATION_RESOLUTION
// structure.
bpReqDest.bpLocation.bpLocation.bplocResolution.pResolution->AddRef();
break;
}
default:
{
assert(FALSE);
// Clear the BPREQI_BPLOCATION flag in the BPREQI_FIELDS of the
// destination BP_REQUEST_INFO.
ClearFlag(bpReqDest.dwFields, BPREQI_BPLOCATION);
break;
}
}
}
// AddRef the IDebugProgram2 if the BPREQI_PROGRAM flag is set in BPREQI_FIELDS.
if (IsFlagSet(bpReqDest.dwFields, BPREQI_PROGRAM))
{
bpReqDest.pProgram->AddRef();
}
// Copy the bstrProgramName if the BPREQI_PROGRAMNAME flag is set in BPREQI_FIELDS.
if (IsFlagSet(bpReqDest.dwFields, BPREQI_PROGRAMNAME))
{
bpReqDest.bstrProgramName = SysAllocString(bpReqSrc.bstrProgramName);
}
// AddRef the IDebugThread2 if the BPREQI_THREAD flag is set in BPREQI_FIELDS.
if (IsFlagSet(bpReqDest.dwFields, BPREQI_THREAD))
{
bpReqDest.pThread->AddRef();
}
// Copy the bstrThreadName if the BPREQI_THREADNAME flag is set in BPREQI_FIELDS.
if (IsFlagSet(bpReqDest.dwFields, BPREQI_THREADNAME))
{
bpReqDest.bstrThreadName = SysAllocString(bpReqSrc.bstrThreadName);
}
// Check to see if the BPREQI_CONDITION flag is set in BPREQI_FIELDS.
if (IsFlagSet(bpReqDest.dwFields, BPREQI_CONDITION))
{
// Conditional AddRef of the IDebugThread2 of the BP_CONDITION structure.
if (bpReqDest.bpCondition.pThread)
{
bpReqDest.bpCondition.pThread->AddRef();
}
// Copy the bstrContext and bstrCondition of the BP_CONDITION structure.
bpReqDest.bpCondition.bstrContext = SysAllocString(bpReqSrc.bpCondition.bstrContext);
bpReqDest.bpCondition.bstrCondition = SysAllocString(bpReqSrc.bpCondition.bstrCondition);
}
return hr;
}