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  • Your email address will not be published.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 …

  • A modern mobile IT strategy is no longer an option, it is an absolute business necessity. Today's most productive employees are not tied to a desk, an office, or a location. They are mobile. And your company's IT strategy has to be ready to support them with easy, reliable, 24/7 access to the business information they need, from anywhere in the world, across a broad range of communication devices. Here's how some of the nation's most progressive corporations are meeting the many needs of their mobile workers …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds