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CView/CDocument

Started by doctorsixstring Aug 14, 2002 at 2:37 PM 4 replies 300+ views

Original Post

Aug 14, 2002 at 2:37 PM

In my SDI MFC app, I have a few classes that need to interact with the CView object. I am fairly experience with C++, but since this is MFC, I can''t quite figure out how to exchange data between the CView/CDocument objects and my new objects. The function DoDataExchange() looks promising, but I''m not really sure. Does any one have any ideas? Thanks in advance, -Mike

doctorsixstring

Author

doctorsixstring

Aug 14, 2002 at 4:51 PM

Perhaps I should rephrase my question:

How can I gain access to the CView object of my MFC app? It looks like the following code creates the View, Document, and MainFrame objects.

  
CSingleDocTemplate* pDocTemplate;
pDocTemplate = new CSingleDocTemplate(
	IDR_MAINFRAME,
	RUNTIME_CLASS(CMyProgramDoc),
	RUNTIME_CLASS(CMainFrame),       // main SDI frame window

	RUNTIME_CLASS(CMyProgramView));
AddDocTemplate(pDocTemplate);

I want to be able to store a pointer to the CMyProgramView object, or find some other way to access that object from other MFC objects. I''m sure there is some easy way to do this, but I can''t seem to find it.

Any thoughts at all would be greatly appreciated.

-Mike

TDragon

Aug 14, 2002 at 4:55 PM

Well, I''d really like to help you, but I''d be going in over my head. I have found that often times MFC is a hassle, a mess, and a big pain when trying to do something simple, and that''s why I stick to straight Win32.

Twilight Dragon
Win32 API Programmer
www.freewebz.com/j-world

niyaw

Aug 14, 2002 at 4:56 PM

CDocTemplate::GetFirstDocPosition
CDocTemplate::GetNextDoc
CDocument::GetFirstViewPosition
CDocument::GetNextView

niyaw

Aug 14, 2002 at 5:15 PM

quote:
Original post by TDragon
Well, I''d really like to help you, but I''d be going in over my head. I have found that often times MFC is a hassle, a mess, and a big pain when trying to do something simple, and that''s why I stick to straight Win32.

you do know what msdn is, right? it took me all of thirty seconds to open it and look at class members under doctemplate and document. maybe you should learn to use your browser productively.

or maybe you keep writing wndprocs that only have one handler, WM_DESTROY?

now getting through these timeout errors takes much longer.

500 errors x17

doctorsixstring

Author

doctorsixstring

Aug 15, 2002 at 8:32 AM

Thanks for the replies guys. After much additional MSDN perusing, and reading your posts, I came up with this jolly bit of code:

//////////////
//called from function in sub-sub dialog window object
CWnd* pwndMain = GetParent()->GetParent()->GetParent();
m_pMainView = ((CFrameWnd*)pwndMain)->GetActiveView();
//////////////

Looks great, doesn''t it?

Well anyways, it works, and I now have a pointer to my main view object from within my new classes.

-Mike

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