Switching between multiple views in an SDI 1

[coredump]

I'm writing an SDI program which requires three views of the same document. I know its possible, MS published a sample application called collection that does this (in MSDN that shipped with vc++ 6).

According to the example, this should create the new view when placed in the CMainFrame class. But when I try to compile it I get (among others) a CINV_trial3View is not a class or namespace name error. Are there special requirements for a view class, other than setting the base class to (in my case) CFormView? I know you have to write the constructor yourself and call CFormView::CFormView() at the end of it, but that should be it, right?

CRuntimeClass* pNewViewClass = RUNTIME_CLASS(CINV_trial3View);
CCreateContext context;
context.m_pNewViewClass = pNewViewClass;
context.m_pCurrentDoc = GetActiveDocument();

CView* PNewView = STATIC_DOWNCAST(CView, CreateView(&context));

pNewView->ShowWindow(SW_SHOW);
pNewView->OnInitialUpdate();
SetActiveView(pNewWindow);
RecalcLayout();
m_nCurrentExample = nCmdID;


Thanks in advance!

 

[IonelBurtan]

I think you just forgot aan #include, something like:
#include "INV_trial3View.h" before your code. I suppose this code is in the CMainFrame class. s-)

Blessed is he who in the name of justice and goodwill, sheperds the weak through the valley of darkness...

http://www20.brinkster.com/ionelb

 

[coredump]

Yep. That's what it was. Thanks.
Now for the next snag: To create the second view class I copied the header/implementation files generated by the MFC app wizard, and used the find/replace feature to replace every instance of CINV_trial_3View with CView1. The program compiles correctly but when I change the document template code, replacing the wizard's view class with my new class:

CSingleDocTemplate* pNewDocTemplate = new CSingleDocTemplate(
IDR_EDITFORMVIEW_TMPL,
RUNTIME_CLASS(CINV_trial_3Doc), //document class
RUNTIME_CLASS(CMainFrame), // frame class
RUNTIME_CLASS(CView2)); // view class

AddDocTemplate(pNewDocTemplate);


But I get a debug assertion failed error at runtime. The line of the error is listed as line 69 of viewform.cpp When I debug the app, it points me to the following code

#ifdef _DEBUG
//dialog template must exist and be invisible with WS_CHILD
//set

if (!_AfxCheckDialogTemplate(m_lpszTemplateName, TRUE))
{
(line69)=> ASSERT(FALSE); // invalid dialog template name
PostNcDestroy(); // cleanup if Create fails too soon
return FALSE;
}
#endif //_DEBUG


I'm not sure what to make of this, especially since the MFC wizard view class works fine.

Thanks again.

 

[IonelBurtan]

IDR_EDITFORMVIEW_TMPL is a resource. Go look after it in the string table maybe you have to replace some part of it.

the you put
RUNTIME_CLASS(CView2)); // view class

I think you meant CView1.

Do you still have the problem? If so, give me more details.
s-)

Blessed is he who in the name of justice and goodwill, sheperds the weak through the valley of darkness...

http://www20.brinkster.com/ionelb