A Snap Size Dialog Class

While creating a fairly complex resizable dialog application, I became annoyed with the amount the controls flickered while being sized. What I wanted was something along the lines of the rubber band sizing available with Plus!, where the contents of the application are sized only when the dragging action is finished.

The solution I came up with sizes the contents of the dialog only when the dragging action is finished, whether or not "Size window contents while dragging" is checked in the Plus! settings.

  1. Add SnapDlg.h to your StdAfx.h.
  2. Derive your dialog class from CSnapDlg.
  3. Change your dialog's constructor to call CSnapDlg's constructor:
  4. CSnapDialogDlg::CSnapDialogDlg(CWnd* pParent /*=NULL*)
       : CSnapDlg(CSnapDialogDlg::IDD, pParent)
    
  5. Change your dialog's message map to flow through CSnapDlg:
  6. BEGIN_MESSAGE_MAP(CSnapDialogDlg, CSnapDlg)
  7. Overload the virtual function SizeDialog() to size your dialog's contents.
  8. Make sure your dialog's OnSize, OnSizing, OnInitDialog, and OnCaptureChanged handlers call the member functions of CSnapDlg instead of CDialog.

Download demo project - 32 KB

Download source - 2 KB



About the Author

Mike Scanlon

Visit http://mike.pricklysoft.com.

Comments

  • Sizing dialogs

    Posted by Legacy on 05/13/2002 12:00am

    Originally posted by: Davon

    This is exactly what I was looking for. Thanks.

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: November 20, 2014 @ 2:00 p.m. ET / 11:00 a.m. PT Are you wanting to target two or more platforms such as iOS, Android, and/or Windows? You are not alone. 90% of enterprises today are targeting two or more platforms. Attend this eSeminar to discover how mobile app developers can rely on one IDE to create applications across platforms and approaches (web, native, and/or hybrid), saving time, money, and effort and introducing apps to market faster. You'll learn the trade-offs for gaining long …

  • Live Event Date: October 29, 2014 @ 11:00 a.m. ET / 8:00 a.m. PT Are you interested in building a cognitive application using the power of IBM Watson? Need a platform that provides speed and ease for rapidly deploying this application? Join Chris Madison, Watson Solution Architect, as he walks through the process of building a Watson powered application on IBM Bluemix. Chris will talk about the new Watson Services just released on IBM bluemix, but more importantly he will do a step by step cognitive …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds