关于属性页的问题，强人帮忙啊！！！

[baidiaohappy]

小弟我在做一个基于对话框的程序，但我在里面加了另外两个对话框（其基类是CPropertyPage）,然后我又添加了一个类（基类是CPropertySheet），目的是把整个程序做成属性页的模式。为了把主对话框去掉，启动时只显示基类是CPropertyPage对话框，我在App类的InitInstance里修改了如下代码：
把
CTestDlg dlg;//CTestDlg dlg是原来的主对话框
m_pMainWnd = &dlg;
int nResponse = dlg.DoModal();
改为
CSheet dlg("Start");//CSheet的基类是CPropertySheet
m_pMainWnd = &dlg;
dlg.Create();
int nResponse = dlg.DoModal();
但在运行时，这个程序直接就崩掉了。请问这个问题该如何解决？

[baidiaohappy]

哦。那就是说只有保存原来的主对话框了？

[mengde007]

基类对话框是附属于主对话框的，必须先启动主对话框，然后可以启动CPropertyPage对话框

[baidiaohappy]

说了半天，我就是希望他能不现实主对话框，或是把主对话框改为我设定的属性页

[baidiaohappy]

说了半天，我就是希望他能不现实主对话框，或是把主对话框改为我设定的属性页

[hangyu628]

楼主这种想法用CProSheet 的DoModal不可能实现,你自己跟踪进去CPropSheet的DoModal看看就清楚了.


ASSERT_VALID(this);
ASSERT(m_hWnd == NULL);

// register common controls
VERIFY(AfxDeferRegisterClass(AFX_WNDCOMMCTLS_REG));
AfxDeferRegisterClass(AFX_WNDCOMMCTLSNEW_REG);

// finish building PROPSHEETHEADER structure
BuildPropPageArray();

// allow OLE servers to disable themselves
CWinApp* pApp = AfxGetApp();
if (pApp != NULL)
pApp->EnableModeless(FALSE);

// find parent HWND
HWND hWndTop;
HWND hWndParent = CWnd::GetSafeOwner_(m_pParentWnd->GetSafeHwnd(), &hWndTop);
AFX_OLDPROPSHEETHEADER* psh = GetPropSheetHeader();
psh->hwndParent = hWndParent;
BOOL bEnableParent = FALSE;
if (hWndParent != NULL && ::IsWindowEnabled(hWndParent))
{
::EnableWindow(hWndParent, FALSE);
bEnableParent = TRUE;
}
HWND hWndCapture = ::GetCapture();
if (hWndCapture != NULL)
::SendMessage(hWndCapture, WM_CANCELMODE, 0, 0);

// setup for modal loop and creation
m_nModalResult = 0;
m_nFlags |= WF_CONTINUEMODAL;

// hook for creation of window
AfxHookWindowCreate(this);
psh->dwFlags |= PSH_MODELESS;
m_nFlags |= WF_CONTINUEMODAL;
HWND hWnd = (HWND)::PropertySheet((PROPSHEETHEADER*)psh);

到上面的最后一句就异常了...

CPropSheet是需要父窗口的

[hangyu628]

楼主这种想法用CProSheet 的DoModal不可能实现,你自己跟踪进去CPropSheet的DoModal看看就清楚了.


ASSERT_VALID(this);
ASSERT(m_hWnd == NULL);

// register common controls
VERIFY(AfxDeferRegisterClass(AFX_WNDCOMMCTLS_REG));
AfxDeferRegisterClass(AFX_WNDCOMMCTLSNEW_REG);

// finish building PROPSHEETHEADER structure
BuildPropPageArray();

// allow OLE servers to disable themselves
CWinApp* pApp = AfxGetApp();
if (pApp != NULL)
pApp->EnableModeless(FALSE);

// find parent HWND
HWND hWndTop;
HWND hWndParent = CWnd::GetSafeOwner_(m_pParentWnd->GetSafeHwnd(), &hWndTop);
AFX_OLDPROPSHEETHEADER* psh = GetPropSheetHeader();
psh->hwndParent = hWndParent;
BOOL bEnableParent = FALSE;
if (hWndParent != NULL && ::IsWindowEnabled(hWndParent))
{
::EnableWindow(hWndParent, FALSE);
bEnableParent = TRUE;
}
HWND hWndCapture = ::GetCapture();
if (hWndCapture != NULL)
::SendMessage(hWndCapture, WM_CANCELMODE, 0, 0);

// setup for modal loop and creation
m_nModalResult = 0;
m_nFlags |= WF_CONTINUEMODAL;

// hook for creation of window
AfxHookWindowCreate(this);
psh->dwFlags |= PSH_MODELESS;
m_nFlags |= WF_CONTINUEMODAL;
HWND hWnd = (HWND)::PropertySheet((PROPSHEETHEADER*)psh);

到上面的最后一句就异常了...