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Hi,
I need some help in MFC splitter windows. I create an user interface (GUI) which is look like new outloook application. I create a splitter window which have 3 panes, like the shape below.
+-----+------------+
| | |
| | |
| 1 | 2 |
| | |
+-----| |
| 3 | |
+-----+------------+
I place some buttons on pane 3 and when i click on button i switch views of pane 1 and pane 2 to some different views. Below is the code that i place in different modules of application:
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
// SIZE OF CLIENT AREA
CRect clientRect;
GetClientRect(&clientRect);
int Col1Width = clientRect.Width()/4;
int Col2Width = clientRect.Width() - Col1Width;
/*==========================================================
SPLIT CLIENT AREA INTO 2 SEPARATE COLUMNS
============================================================*/
VERIFY (
m_wndSpltForCols.CreateStatic (
this,
1, // NUMBER OF ROWS
2 // NUMBER OF COLUMNS
)
);
/*=======================================
VIEW FOR 2ND COLUMN
========================================*/
VERIFY (
m_wndSpltForCols.CreateView (0, // ROW POSITION
1, // COLUMN POSITION
RUNTIME_CLASS(CSplitFrame), // VIEW CLASS FOR PANE
CSize(Col2Width, clientRect.Height()), // SIZE OF PANE
pContext //
)
);
/*=======================================
SPLITTING 1ST COLUMNS INTO 2 COLUMNS
========================================*/
VERIFY (
m_wndSpltForRows.CreateStatic (
&m_wndSpltForCols, // PARENT OBJECT
2, // NUMBER OF ROWS
1, // NUMBER OF COLUMNS
WS_CHILD|WS_VISIBLE, // STYLES
m_wndSpltForCols.IdFromRowCol(0,0) // WHICH COLUMN IS TO BE SPLITTED
)
);
/*=======================================
VIEW FOR FIRST ROW - CONTAINS CTreeCtrl
========================================*/
VERIFY (
m_wndSpltForRows.CreateView (
0,
0,
RUNTIME_CLASS(CNavOptionsView),
CSize(10,10),
pContext
)
);
/*=============================================
VIEW FOR SECOND ROW - MAIN NAVIGATION BUTTONS
===============================================*/
VERIFY (
m_wndSpltForRows.CreateView (
1,
0,
RUNTIME_CLASS(CNavigateView),
CSize(10,10),
pContext
)
);
m_wndSpltForCols.RecalcLayout();
//SPLITTER WINDOW INITIALIZATION FLAG
m_isWndSpltsInitialize = true;
return true;
}
The actual problem that i face in below function....By logic i think it fails but below function works 100% when i run application in Debug mode but when i run it in Release mode...application popups an Unhandle Exception.
bool CSagsDoc::SwitchToView(CView* pOldViewClass, CRuntimeClass* pNewViewClass)
{
if (pOldViewClass->IsKindOf(pNewViewClass)) return TRUE;
CFrameWnd* pMainWnd = (CFrameWnd*)AfxGetMainWnd();
CEnhSplitterWnd* pSplitter = (CEnhSplitterWnd *)pOldViewClass->GetParent();
int row = 0, col= 0;
ASSERT(pSplitter->IsChildPane(pOldViewClass, &row, &col));
CRect viewrect;
pOldViewClass->GetWindowRect(&viewrect);
// DELETEING PANE VIEW
m_bAutoDelete = FALSE;
pOldViewClass->DestroyWindow();
m_bAutoDelete = TRUE;
CCreateContext context;
context.m_pNewViewClass = pNewViewClass;
context.m_pCurrentDoc = this;
if (!pSplitter->CreateView(row, col, pNewViewClass, viewrect.Size(),&context))
return false;
// Set active
CView* pNewView = (CView *)pSplitter->GetPane(row, col);
if (pNewView)
{
pNewView->GetParentFrame()->RecalcLayout();
}
// EXCEPTION In Release Version
if (pSplitter)
{
pSplitter->GetParentFrame()->SetActiveView(pNewView); /** EXCEPTION OCCUR HERE **/
pSplitter->SetActivePane(row, col);
pSplitter->RecalcLayout();
}
pNewView->OnInitialUpdate();
pNewView->SendMessage(WM_PAINT);
pNewView->SendMessage(WM_SIZE);
return true;
}
and last i am new in MFC world and feel lot of confusion and conflicts about MFC i spend more then 6 months in MFC but i still not satisfied with my MFC skills. if someone knows best MFC or any other related book please refer to me.
Regards,
Adnan
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