很多问题。。。

[maxh718]

1单文档，多视的拆分窗口，如何在窗口大小改变时，其中的一个视大小不变？
2如何用最简单的方法在SDI窗口中实现两个视的切换，像属性页一样，但不是对话框。

[RedFire]

1、视类也是从窗口类继承而来的，你自己处理视类的WM_SIZE不就行了吗？
2、下面的例子是从《VC++技术内幕5.0》中直接拷贝出来的，都是E文，不过很容易看懂的。

The EX20C Example—Switching View Classes Without a Splitter
Sometimes you just want to switch view classes under program control and you don't want to be bothered with a splitter window. The EX20C example is an SDI application that switches between CStringView and CHexView in response to selections on the View menu. Starting with what AppWizard generates, all you need to do is add two new menu commands and then add some code to the CMainFrame class. You also need to change the CStringView and CHexView constructors from protected to public.

Resource Requirements
The following two items have been added to the View menu in the IDR_MAINFRAME menu resource. Caption Command ID CMainFrame Function
St&ring View ID_VIEW_STRINGVIEW OnViewStringView
&Hex View ID_VIEW_HEXVIEW OnViewHexView


ClassWizard was used to add the command-handling functions (and corresponding update command UI handlers) to the CMainFrame class.

CMainFrame
The CMainFrame class gets a new private helper function, SwitchToView, which is called from the two menu command handlers. The enum parameter tells the function which view to switch to. Here are the two added items in the MainFrm.h header file:


private:
enum eView { STRING = 1, HEX = 2 };
void SwitchToView(eView nView);
The SwitchToView function (in MainFrm.cpp) makes some low-level MFC calls to locate the requested view and to activate it. Don't worry about how it works. Just adapt it to your own applications when you want the view- switching feature. Add the following code:


void CMainFrame::SwitchToView(eView nView)
{
CView* pOldActiveView = GetActiveView();
CView* pNewActiveView = (CView*) GetDlgItem(nView);
if (pNewActiveView == NULL) {
switch (nView) {
case STRING:
pNewActiveView = (CView*) new CStringView;
break;
case HEX:
pNewActiveView = (CView*) new CHexView;
break;
}
CCreateContext context;
context.m_pCurrentDoc = pOldActiveView->GetDocument();
pNewActiveView->Create(NULL, NULL, WS_BORDER,
CFrameWnd::rectDefault, this, nView, &context);
pNewActiveView->OnInitialUpdate();
}
SetActiveView(pNewActiveView);
pNewActiveView->ShowWindow(SW_SHOW);
pOldActiveView->ShowWindow(SW_HIDE);
pOldActiveView->SetDlgCtrlID(
pOldActiveView->GetRuntimeClass() ==
RUNTIME_CLASS(CStringView) ? STRING : HEX);
pNewActiveView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
RecalcLayout();
}
Finally, here are the menu command handlers and update command UI handlers that ClassWizard initially generated (along with message map entries and prototypes). The update command UI handlers test the current view's class.


void CMainFrame::OnViewStringView()
{
SwitchToView(STRING);
}

void CMainFrame::OnUpdateViewStringView(CCmdUI* pCmdUI)
{
pCmdUI->Enable(
!GetActiveView()->IsKindOf(RUNTIME_CLASS(CStringView)));
}

void CMainFrame::OnViewHexView()
{
SwitchToView(HEX);
}

void CMainFrame::OnUpdateViewHexView(CCmdUI* pCmdUI)
{
pCmdUI->Enable(
!GetActiveView()->IsKindOf(RUNTIME_CLASS(CHexView)));
}