调试DirectShow程序的时候，利GraphEdit查看自已程序中的Graph

调试DirectShow程序的时候，利GraphEdit查看自已程序中的Graph

摘自DirectX帮助文档中的两个函数：

1.下面的这个函数是将我们的IGraphBuilder接口添加到GraphEdit中去.

HRESULT AddToRot(IUnknown  * pUnkGraph, DWORD  * pdwRegister) 
{
     IMoniker  *  pMoniker;
     IRunningObjectTable  * pROT;
     if  (FAILED(GetRunningObjectTable( 0 ,  & pROT))) {
         return  E_FAIL;
     }
     WCHAR wsz[ 256 ];
     wsprintfW(wsz, L " FilterGraph %08x pid %08x " , (DWORD_PTR)pUnkGraph, GetCurrentProcessId());
     HRESULT hr  =  CreateItemMoniker(L " ! " , wsz,  & pMoniker);
     if  (SUCCEEDED(hr)) {
         hr  =  pROT -> Register(ROTFLAGS_REGISTRATIONKEEPSALIVE, pUnkGraph,
             pMoniker, pdwRegister);
         pMoniker -> Release();
     }
     pROT -> Release();
     return  hr;
}

2.下面的这个函数是从GraphEdit中移除我们的IGraphBuilder.

void  RemoveFromRot(DWORD pdwRegister)
{
     IRunningObjectTable  * pROT;
     if  (SUCCEEDED(GetRunningObjectTable( 0 ,  & pROT))) {
         pROT -> Revoke(pdwRegister);
         pROT -> Release();
     }
}

3.以上两个函数在程序的使用方法.

IGraphBuilder  * pGraph;
DWORD dwRegister;
    
//  Create the filter graph manager.
CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
                         IID_IGraphBuilder, ( void   ** ) & pGraph);
#ifdef _DEBUG
hr  =  AddToRot(pGraph,  & dwRegister);
#endif

//  Rest of the application (not shown).
#ifdef _DEBUG
RemoveFromRot(dwRegister);
#endif
pGraph -> Release();

4.打开GraphEdit程序后，点击File菜单->Connect to Remote Graph或Ctrl+G出现一个选窗口点击确定就可以看到你程序中的Graph了！

摘自DirectX帮助文档中的两个函数：

1.下面的这个函数是将我们的IGraphBuilder接口添加到GraphEdit中去.

HRESULT AddToRot(IUnknown  * pUnkGraph, DWORD  * pdwRegister) 
{
     IMoniker  *  pMoniker;
     IRunningObjectTable  * pROT;
     if  (FAILED(GetRunningObjectTable( 0 ,  & pROT))) {
         return  E_FAIL;
     }
     WCHAR wsz[ 256 ];
     wsprintfW(wsz, L " FilterGraph %08x pid %08x " , (DWORD_PTR)pUnkGraph, GetCurrentProcessId());
     HRESULT hr  =  CreateItemMoniker(L " ! " , wsz,  & pMoniker);
     if  (SUCCEEDED(hr)) {
         hr  =  pROT -> Register(ROTFLAGS_REGISTRATIONKEEPSALIVE, pUnkGraph,
             pMoniker, pdwRegister);
         pMoniker -> Release();
     }
     pROT -> Release();
     return  hr;
}

2.下面的这个函数是从GraphEdit中移除我们的IGraphBuilder.

void  RemoveFromRot(DWORD pdwRegister)
{
     IRunningObjectTable  * pROT;
     if  (SUCCEEDED(GetRunningObjectTable( 0 ,  & pROT))) {
         pROT -> Revoke(pdwRegister);
         pROT -> Release();
     }
}

3.以上两个函数在程序的使用方法.

IGraphBuilder  * pGraph;
DWORD dwRegister;
    
//  Create the filter graph manager.
CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
                         IID_IGraphBuilder, ( void   ** ) & pGraph);
#ifdef _DEBUG
hr  =  AddToRot(pGraph,  & dwRegister);
#endif

//  Rest of the application (not shown).
#ifdef _DEBUG
RemoveFromRot(dwRegister);
#endif
pGraph -> Release();

4.打开GraphEdit程序后，点击File菜单->Connect to Remote Graph或Ctrl+G出现一个选窗口点击确定就可以看到你程序中的Graph了！