建立一个单文档的应用程序,添加一个对话框作为登录框,当登录成功后,完成文档的创建,进入该程序,点击取消按钮时,取消文档的创建程序退出!
在CMainFrame的OnCreate函数中添加以下代码:
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
CTestDlg td;//登录对话框
if(td.DoModal()==IDOK)
{ if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
return -1;
if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
{
TRACE0("Failed to create toolbar\n");
return -1; // fail to create
} if (!m_wndStatusBar.Create(this) ||
!m_wndStatusBar.SetIndicators(indicators,
sizeof(indicators)/sizeof(UINT)))
{
TRACE0("Failed to create status bar\n");
return -1; // fail to create
} // TODO: Delete these three lines if you don't want the toolbar to
// be dockable
m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
EnableDocking(CBRS_ALIGN_ANY);
DockControlBar(&m_wndToolBar);
return 0;
}
else
return -1;
}
点击取消时会出现MFC的消息提示框“建立空文档失败”,放在PreCreateWindow()中也有该提示,如何才能取消该提示框?
在CMainFrame的OnCreate函数中添加以下代码:
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
CTestDlg td;//登录对话框
if(td.DoModal()==IDOK)
{ if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
return -1;
if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
{
TRACE0("Failed to create toolbar\n");
return -1; // fail to create
} if (!m_wndStatusBar.Create(this) ||
!m_wndStatusBar.SetIndicators(indicators,
sizeof(indicators)/sizeof(UINT)))
{
TRACE0("Failed to create status bar\n");
return -1; // fail to create
} // TODO: Delete these three lines if you don't want the toolbar to
// be dockable
m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
EnableDocking(CBRS_ALIGN_ANY);
DockControlBar(&m_wndToolBar);
return 0;
}
else
return -1;
}
点击取消时会出现MFC的消息提示框“建立空文档失败”,放在PreCreateWindow()中也有该提示,如何才能取消该提示框?
如果要放到这里,光return -1可能没有让系统得到需要的预期,可以改成Exit(0)或者其它的直接关闭程序的代码,如:PostQuitMessage(0)等