【MFC】窗口切分

在MFC的文档模式中，为了用户界面友好，以多种形式现实用户数据，我们需要切分视图窗口。

在SDI模式中若需要切分窗口步骤如下：

step1： 在CMainFrame类中添加窗口切分变量CSplitterWnd m_wndSplitter, m_wndSplitterRight.

step2：在CMainFrame类中重载CFrameWnd的成员函数OnCreateClient

step2：在OnCreateClient函数中添加如下代码

BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
	// TODO: Add your specialized code here and/or call the base class
	
	// Get the client rect of application
	CRect rect;
	this->GetClientRect(&rect);
	// Width of the client rect
	int nWidth = rect.right - rect.left;
	//height of the client rect
	int nHeight = rect.bottom - rect.top;
#define FRACTION	4
	// split the view into 1 row 2 cols
	m_wndSplitter.CreateStatic(this, 1, 2); 
	// create a view in 0 row 0 col
	m_wndSplitter.CreateView(0, 0, RUNTIME_CLASS(CProjectFormView), CSize(nWidth / FRACTION, 0), pContext);
	
	// split the view in 0 row 1 col into 2 rows 1 col
	m_wndSplitterRight.CreateStatic(&m_wndSplitter, 2, 1, WS_CHILD | WS_VISIBLE, m_wndSplitter.IdFromRowCol(0, 1));
	// create two views in the subview
	m_wndSplitterRight.CreateView(0, 0, RUNTIME_CLASS(CClientView), CSize(0, nHeight / FRACTION * 3), pContext);
	m_wndSplitterRight.CreateView(1, 0, RUNTIME_CLASS(CMessageView), CSize(0, 0), pContext);
	
	// mentions : the function must return TRUE.
	return TRUE;
	//return CFrameWnd::OnCreateClient(lpcs, pContext);
}