Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

How to eliminate flickering when using ShowWindow()

Posted on 2000-03-09
1
Medium Priority
?
402 Views
Last Modified: 2013-11-20
Hi

  I need to show a series of dialog boxes.  I use ShowWindow() to hide a dialog box before showing the next one. However, i notice significant flickering and slow refreshing ( coz i can see glimpses of background applications) when i use this function .

Eg from Dialog Box 1 to Dialog Box 2

   ShowWindow(SW_HIDE);
   Dlg2.DoModal();
   ShowWindow(SW_SHOW);

   Any suggestions to the code or other methods to use??

  TIA
0
Comment
Question by:kc76
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 1

Accepted Solution

by:
mahno earned 150 total points
ID: 2603865
U can increase speed by following way:

Add to class for Dlg2:

class CClassName : public CDialog {
  //add class member
  CDialog *m_pParentDlg;  
  //...
  //add metdod
  void SetParentDlg(CDialog *pParentDlg);
}

//...

//Add string to constructor
void CClassName::CClassName() {
  //...
  //Initialize m_pParentDlg
  m_pParentDlg = NULL;
}

void CClassName::SetParentDlg(CDialog *pParentDlg) {
  m_pParentDlg = pParentDlg;
}

void CClassName::OnShowWindow(BOOL bShow, UINT nStatus) {
      CDialog::OnShowWindow(bShow, nStatus);
      
  if ((bShow == TRUE) && (m_pParentDlg != NULL))
    m_pParentDlg ->ShowWindow(SW_HIDE);
}

//Add this for OnClose, OnOk, etc.
void CClassName::OnClose() {
  //...
  if (m_pParentDlg != NULL)
    m_pParentDlg ->ShowWindow(SW_SHOW);
}


Hope this helps,
  mahno
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
If you use Adobe Reader X it is possible you can't open OLE PDF documents in the standard. The reason is the 'save box mode' in adobe reader X. Many people think the protected Mode of adobe reader x is only to stop the write access. But this fe…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB. How Percona can help Percona can help you determine if Percona Server for MongoDB is the right solution for …

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question