In the dialog how to destroy a dynamically created control when other child control's got focus?











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I have a MFC dialog based application, when click on CButton I am dynamically creating and displaying a list box.



If I click on other child controls in the dialog or click on dialog's client area I have to destroy this list box.



But I dont know how to get notification in the dialog when click on dialog's client area or click on child controls other than this list box in the dialog?



my code snippet



void CbtntestDlg::OnBnClickedButton1()
{
CRect rcBtn;
m_ctrlbtn.GetWindowRect(rcBtn);
int w = rcBtn.Width();
int h = rcBtn.Height();
POINT p;
p.x=rcBtn.left;
p.y=rcBtn.top;
::ScreenToClient(this->m_hWnd,&p);
/*CRect r(rcBtn.right-100,rcBtn.bottom, rcBtn.right, rcBtn.bottom+30);*/
CRect r(p.x,p.y+h,p.x+100,p.y+h+150);

//CRect rect(10,10,300,250);
listbox.Create( WS_CHILD | WS_CLIPSIBLINGS|WS_VISIBLE | WS_TABSTOP | WS_BORDER | WS_VSCROLL | WS_HSCROLL,r,this,IDC_LIST1 );
listbox.SetFont(m_ctrlbtn.GetFont());

listbox.ModifyStyleEx(0,WS_EX_CLIENTEDGE, SWP_DRAWFRAME);
int i=listbox.AddString(_T("City1"));
i=listbox.AddString(_T("City2"));
i=listbox.AddString(_T("City3"));
i=listbox.AddString(_T("City4"));
listbox.ShowWindow(SW_SHOW);
listbox.BringWindowToTop();

}


I shared my sample application in the below path.



https://aspiresysinc-my.sharepoint.com/:u:/g/personal/sujitha_ramamoorthy_aspiresys_com/EdjCEZVuwXxNqhm6TkNvF8cB6THPPw7i12sR71VtOw1xlA?e=ncgJ5g



Thanks in advance.










share|improve this question
























  • Show a Minimal, Complete, and Verifiable example, in the question itself. And make sure you explain exactly, what you need. From the sounds of it, you haven't quite grasped, how Windows works, and are programming it the way you think things work. Not going to be a successful strategy going forward. Get yourself a copy of Petzold's "Programming Windows", and take it from there.
    – IInspectable
    Nov 11 at 11:27










  • @IInspectable - The same question was answered by msdn. The link is social.msdn.microsoft.com/Forums/vstudio/en-US/…
    – user369287
    Nov 19 at 6:16










  • The MSDN has a forum, with rules different from those of a Q&A site like Stack Overflow. The answer posted there would get flagged as "not an answer" over here. Please take the tour to learn, how Stack Overflow works and how it's different.
    – IInspectable
    Nov 19 at 8:18















up vote
0
down vote

favorite












I have a MFC dialog based application, when click on CButton I am dynamically creating and displaying a list box.



If I click on other child controls in the dialog or click on dialog's client area I have to destroy this list box.



But I dont know how to get notification in the dialog when click on dialog's client area or click on child controls other than this list box in the dialog?



my code snippet



void CbtntestDlg::OnBnClickedButton1()
{
CRect rcBtn;
m_ctrlbtn.GetWindowRect(rcBtn);
int w = rcBtn.Width();
int h = rcBtn.Height();
POINT p;
p.x=rcBtn.left;
p.y=rcBtn.top;
::ScreenToClient(this->m_hWnd,&p);
/*CRect r(rcBtn.right-100,rcBtn.bottom, rcBtn.right, rcBtn.bottom+30);*/
CRect r(p.x,p.y+h,p.x+100,p.y+h+150);

//CRect rect(10,10,300,250);
listbox.Create( WS_CHILD | WS_CLIPSIBLINGS|WS_VISIBLE | WS_TABSTOP | WS_BORDER | WS_VSCROLL | WS_HSCROLL,r,this,IDC_LIST1 );
listbox.SetFont(m_ctrlbtn.GetFont());

listbox.ModifyStyleEx(0,WS_EX_CLIENTEDGE, SWP_DRAWFRAME);
int i=listbox.AddString(_T("City1"));
i=listbox.AddString(_T("City2"));
i=listbox.AddString(_T("City3"));
i=listbox.AddString(_T("City4"));
listbox.ShowWindow(SW_SHOW);
listbox.BringWindowToTop();

}


I shared my sample application in the below path.



https://aspiresysinc-my.sharepoint.com/:u:/g/personal/sujitha_ramamoorthy_aspiresys_com/EdjCEZVuwXxNqhm6TkNvF8cB6THPPw7i12sR71VtOw1xlA?e=ncgJ5g



Thanks in advance.










share|improve this question
























  • Show a Minimal, Complete, and Verifiable example, in the question itself. And make sure you explain exactly, what you need. From the sounds of it, you haven't quite grasped, how Windows works, and are programming it the way you think things work. Not going to be a successful strategy going forward. Get yourself a copy of Petzold's "Programming Windows", and take it from there.
    – IInspectable
    Nov 11 at 11:27










  • @IInspectable - The same question was answered by msdn. The link is social.msdn.microsoft.com/Forums/vstudio/en-US/…
    – user369287
    Nov 19 at 6:16










  • The MSDN has a forum, with rules different from those of a Q&A site like Stack Overflow. The answer posted there would get flagged as "not an answer" over here. Please take the tour to learn, how Stack Overflow works and how it's different.
    – IInspectable
    Nov 19 at 8:18













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have a MFC dialog based application, when click on CButton I am dynamically creating and displaying a list box.



If I click on other child controls in the dialog or click on dialog's client area I have to destroy this list box.



But I dont know how to get notification in the dialog when click on dialog's client area or click on child controls other than this list box in the dialog?



my code snippet



void CbtntestDlg::OnBnClickedButton1()
{
CRect rcBtn;
m_ctrlbtn.GetWindowRect(rcBtn);
int w = rcBtn.Width();
int h = rcBtn.Height();
POINT p;
p.x=rcBtn.left;
p.y=rcBtn.top;
::ScreenToClient(this->m_hWnd,&p);
/*CRect r(rcBtn.right-100,rcBtn.bottom, rcBtn.right, rcBtn.bottom+30);*/
CRect r(p.x,p.y+h,p.x+100,p.y+h+150);

//CRect rect(10,10,300,250);
listbox.Create( WS_CHILD | WS_CLIPSIBLINGS|WS_VISIBLE | WS_TABSTOP | WS_BORDER | WS_VSCROLL | WS_HSCROLL,r,this,IDC_LIST1 );
listbox.SetFont(m_ctrlbtn.GetFont());

listbox.ModifyStyleEx(0,WS_EX_CLIENTEDGE, SWP_DRAWFRAME);
int i=listbox.AddString(_T("City1"));
i=listbox.AddString(_T("City2"));
i=listbox.AddString(_T("City3"));
i=listbox.AddString(_T("City4"));
listbox.ShowWindow(SW_SHOW);
listbox.BringWindowToTop();

}


I shared my sample application in the below path.



https://aspiresysinc-my.sharepoint.com/:u:/g/personal/sujitha_ramamoorthy_aspiresys_com/EdjCEZVuwXxNqhm6TkNvF8cB6THPPw7i12sR71VtOw1xlA?e=ncgJ5g



Thanks in advance.










share|improve this question















I have a MFC dialog based application, when click on CButton I am dynamically creating and displaying a list box.



If I click on other child controls in the dialog or click on dialog's client area I have to destroy this list box.



But I dont know how to get notification in the dialog when click on dialog's client area or click on child controls other than this list box in the dialog?



my code snippet



void CbtntestDlg::OnBnClickedButton1()
{
CRect rcBtn;
m_ctrlbtn.GetWindowRect(rcBtn);
int w = rcBtn.Width();
int h = rcBtn.Height();
POINT p;
p.x=rcBtn.left;
p.y=rcBtn.top;
::ScreenToClient(this->m_hWnd,&p);
/*CRect r(rcBtn.right-100,rcBtn.bottom, rcBtn.right, rcBtn.bottom+30);*/
CRect r(p.x,p.y+h,p.x+100,p.y+h+150);

//CRect rect(10,10,300,250);
listbox.Create( WS_CHILD | WS_CLIPSIBLINGS|WS_VISIBLE | WS_TABSTOP | WS_BORDER | WS_VSCROLL | WS_HSCROLL,r,this,IDC_LIST1 );
listbox.SetFont(m_ctrlbtn.GetFont());

listbox.ModifyStyleEx(0,WS_EX_CLIENTEDGE, SWP_DRAWFRAME);
int i=listbox.AddString(_T("City1"));
i=listbox.AddString(_T("City2"));
i=listbox.AddString(_T("City3"));
i=listbox.AddString(_T("City4"));
listbox.ShowWindow(SW_SHOW);
listbox.BringWindowToTop();

}


I shared my sample application in the below path.



https://aspiresysinc-my.sharepoint.com/:u:/g/personal/sujitha_ramamoorthy_aspiresys_com/EdjCEZVuwXxNqhm6TkNvF8cB6THPPw7i12sR71VtOw1xlA?e=ncgJ5g



Thanks in advance.







mfc






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edited Nov 11 at 11:42

























asked Nov 11 at 11:21









user369287

181213




181213












  • Show a Minimal, Complete, and Verifiable example, in the question itself. And make sure you explain exactly, what you need. From the sounds of it, you haven't quite grasped, how Windows works, and are programming it the way you think things work. Not going to be a successful strategy going forward. Get yourself a copy of Petzold's "Programming Windows", and take it from there.
    – IInspectable
    Nov 11 at 11:27










  • @IInspectable - The same question was answered by msdn. The link is social.msdn.microsoft.com/Forums/vstudio/en-US/…
    – user369287
    Nov 19 at 6:16










  • The MSDN has a forum, with rules different from those of a Q&A site like Stack Overflow. The answer posted there would get flagged as "not an answer" over here. Please take the tour to learn, how Stack Overflow works and how it's different.
    – IInspectable
    Nov 19 at 8:18


















  • Show a Minimal, Complete, and Verifiable example, in the question itself. And make sure you explain exactly, what you need. From the sounds of it, you haven't quite grasped, how Windows works, and are programming it the way you think things work. Not going to be a successful strategy going forward. Get yourself a copy of Petzold's "Programming Windows", and take it from there.
    – IInspectable
    Nov 11 at 11:27










  • @IInspectable - The same question was answered by msdn. The link is social.msdn.microsoft.com/Forums/vstudio/en-US/…
    – user369287
    Nov 19 at 6:16










  • The MSDN has a forum, with rules different from those of a Q&A site like Stack Overflow. The answer posted there would get flagged as "not an answer" over here. Please take the tour to learn, how Stack Overflow works and how it's different.
    – IInspectable
    Nov 19 at 8:18
















Show a Minimal, Complete, and Verifiable example, in the question itself. And make sure you explain exactly, what you need. From the sounds of it, you haven't quite grasped, how Windows works, and are programming it the way you think things work. Not going to be a successful strategy going forward. Get yourself a copy of Petzold's "Programming Windows", and take it from there.
– IInspectable
Nov 11 at 11:27




Show a Minimal, Complete, and Verifiable example, in the question itself. And make sure you explain exactly, what you need. From the sounds of it, you haven't quite grasped, how Windows works, and are programming it the way you think things work. Not going to be a successful strategy going forward. Get yourself a copy of Petzold's "Programming Windows", and take it from there.
– IInspectable
Nov 11 at 11:27












@IInspectable - The same question was answered by msdn. The link is social.msdn.microsoft.com/Forums/vstudio/en-US/…
– user369287
Nov 19 at 6:16




@IInspectable - The same question was answered by msdn. The link is social.msdn.microsoft.com/Forums/vstudio/en-US/…
– user369287
Nov 19 at 6:16












The MSDN has a forum, with rules different from those of a Q&A site like Stack Overflow. The answer posted there would get flagged as "not an answer" over here. Please take the tour to learn, how Stack Overflow works and how it's different.
– IInspectable
Nov 19 at 8:18




The MSDN has a forum, with rules different from those of a Q&A site like Stack Overflow. The answer posted there would get flagged as "not an answer" over here. Please take the tour to learn, how Stack Overflow works and how it's different.
– IInspectable
Nov 19 at 8:18

















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