获取其它进程中的Web Browser中的HTML源码

HWND H1,H2,H3,H4,hw;
 H1=H2=H3=H4=hw=NULL;
 H1=::FindWindow("TForm1",NULL);
 if (H1) H2=::FindWindowEx(H1,NULL,"Shell Embedding",NULL);
 if (H2) H3=::FindWindowEx(H2,NULL,"Shell DocObject View",NULL);
 if (H3) H4=::FindWindowEx(H3,NULL,"Internet Explorer_Server",NULL);
 if (H4) hw=H4;
 else
 {
  AfxMessageBox("No Found the Dialog with IE!");
  return;
 }
 IHTMLDocument2 *pHTMLDocument=NULL;
 DWORD lRes;
 HRESULT hres;
 UINT MSG = RegisterWindowMessage("WM_HTML_GETOBJECT");
 SendMessageTimeout(hw, MSG, 0, 0, SMTO_ABORTIFHUNG, 1000, &lRes);
 hres=ObjectfromLresult(lRes,__uuidof(IHTMLDocument2),0,(void**)&pHTMLDocument);
 if(hres==S_OK) 
 {
  IPersistStreamInit *pPSI=NULL;
  IStream *pStream=NULL; 
  HGLOBAL  hHTMLText; 
    
  if  (FAILED(pHTMLDocument->QueryInterface(&pPSI))) return;
   
  hHTMLText = GlobalAlloc(GMEM_FIXED, 65534);
  CreateStreamOnHGlobal(hHTMLText, TRUE, &pStream); 
  pPSI->Save(pStream, FALSE);
  char *pText = (char*)hHTMLText;
  FILE *f=fopen("data_from_explorer.txt","w");
  fwrite(pText,1,strlen(pText),f);
  fclose(f);
  AfxMessageBox("the source codes Saved in data_from_explorer.txt");
  pStream->Release();
  pPSI->Release();
 }