模态和非模态对话框 [英] Modal and modeless dialog

问题描述

我在关闭无模式对话框时遇到问题.给出诸如调试断言失败"之类的错误.在dlgcore.cpp

我正在一个项目中，我正在从模式对话框中调用无模式对话框.
喜欢:

在模式对话框中，我正在调用无模式对话框
例如:

Hi,

i am facing a problem in closing the modeless dialog. giving some errors like "Debug Assertion Failed". in dlgcore.cpp

I am working on a project where i am calling a modeless dialog from the modal dialog.
Like:

in Modal dialog, i am calling a modeless dialog
ex:

a Class called CModalDlg.
void CModalDlg::OnCall()
{ 
   CDlg1* pDlg1 = new CDlg1;
   pDlg1->Create(CDlg1::IDD);
   pDlg1->ShowWindow(SW_SHOW);
}

in Modeless dialog, here i am trying to close the modeless dialog.
ex:
a class called CModelessDlg.
void CModelessDlg::OnCancel()
{
    CDialog::OnCancel();
}

我正在关闭像这样的无模式对话框，但是它给出了一个错误"Debug Assertion Failed".

我不知道我在哪里出问题.

谢谢您在Advance.

i am closing the modeless dialog like this but its giving an error "Debug Assertion Failed".

I dont know where i am making a problem.

Thank u in Advance.

推荐答案

不要为无模式对话框调用EndDialog()，OnOK()和OnCancel().这些功能仅用于模式对话框.从OnCancel()调用DestroyWindow().

您应该阅读有关无模式对话框的信息.例如此CP文章:教程-使用MFC的无模式对话框 [

Don''t call EndDialog(), OnOK() and OnCancel() for modeless dialogs. These functions are for modal dialogs only. Call DestroyWindow() from OnCancel().

You should read about modeless dialogs; e.g. this CP article: Tutorial - Modeless Dialogs with MFC[^].

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