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调用dll 中VIEW创建文档模板出错

时间:2011-12-28

来源:互联网

BOOL CTest9App::InitInstance()
{
  CMultiDocTemplate* pDocTemplate;
pDocTemplate = new CMultiDocTemplate(IDR_Test9TYPE,
RUNTIME_CLASS(CTest9Doc),
RUNTIME_CLASS(CChildFrame), RUNTIME_CLASS(CTest9View));//
if (!pDocTemplate)
return FALSE;
AddDocTemplate(pDocTemplate);
}

LRESULT CMainFrame::OnMyMessage(WPARAM wParam,LPARAM lParam)
{//自定消息
  CRuntimeClass *pNewViewClass;
  if(!GetViewFromDll(_T("CFormView.dll"),"Init",&pNewViewClass))//从DLL读取
return 0;
CMultiDocTemplate* pNewDocTemplate;
pNewDocTemplate =new CMultiDocTemplate(IDR_Test9TYPE,
RUNTIME_CLASS(CTest9Doc),
RUNTIME_CLASS(CChildFrame), pNewViewClass);
//这里出问题
//CDocTemplate::CDocTemplate(UINT nIDResource, CRuntimeClass* pDocClass,
// CRuntimeClass* pFrameClass, CRuntimeClass* pViewClass)
//{
// ASSERT_VALID_IDR(nIDResource);
// ASSERT(pDocClass == NULL ||
// pDocClass->IsDerivedFrom(RUNTIME_CLASS(CDocument)));
// ASSERT(pFrameClass == NULL ||
// pFrameClass->IsDerivedFrom(RUNTIME_CLASS(CFrameWnd)));
// ASSERT(pViewClass == NULL ||
// pViewClass->IsDerivedFrom(RUNTIME_CLASS(CView)));<---弹出窗口

AfxGetApp()->AddDocTemplate (pNewDocTemplate);
CDocument * pNewDoc=pNewDocTemplate->CreateNewDocument();
}


BOOL CMainFrame::GetViewFromDll(LPCTSTR lplibFileName,LPCSTR lpProcName,CRuntimeClass **pNewViewClass)
{
//
typedef UINT ( * LPDLLFUNC)(CRuntimeClass**);
LPDLLFUNC lpfnDllFunc = NULL;
  HINSTANCE hDLL = NULL;  
   
hDLL = LoadLibrary(lplibFileName);
  if(hDLL)
  {
  lpfnDllFunc = (LPDLLFUNC)::GetProcAddress(hDLL,lpProcName);
  if (!lpfnDllFunc)
  {
  AfxMessageBox("Function not found in DLL");
FreeLibrary(hDLL);
  return 0;
  }
  lpfnDllFunc(pNewViewClass);
  ASSERT(*pNewViewClass);
return 1;
}
  AfxMessageBox("Can't find dll files ");

return 0 ;
}

作者: wangjugui   发布时间: 2011-12-28

DLL 中定义的的pNewViewClass ::CFormView

作者: wangjugui   发布时间: 2011-12-28