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  • Your email address will not be published.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

  • On-demand Event Event Date: September 10, 2014 Modern mobile applications connect systems-of-engagement (mobile apps) with systems-of-record (traditional IT) to deliver new and innovative business value. But the lifecycle for development of mobile apps is also new and different. Emerging trends in mobile development call for faster delivery of incremental features, coupled with feedback from the users of the app "in the wild." This loop of continuous delivery and continuous feedback is how the best mobile …

  • The explosion in mobile devices and applications has generated a great deal of interest in APIs. Today's businesses are under increased pressure to make it easy to build apps, supply tools to help developers work more quickly, and deploy operational analytics so they can track users, developers, application performance, and more. Apigee Edge provides comprehensive API delivery tools and both operational and business-level analytics in an integrated platform. It is available as on-premise software or through …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds