Macintosh-like Slider Control

Environment: Windows NT4 SP4, Visual C++ 6

This image shows an example of my CMacSliderCtrl and CMacProgressCtrl. For more information on the CMacProgressCtrl, please refer to this article.

This class is my attempt at recreating the slider control of the Macintosh. This control (CMacSliderCtrl) allows you to change the thumb, channel and selection colors.

Public Member Functions


void SetChannelColor(COLORREF crColor)
COLORREF GetChannelColor()
void SetSelectionColor(COLORREF crColor)
COLORREF GetSelectionColor()
void SetThumbColor(COLORREF crColor)
COLORREF GetThumbColor()

Steps to add a CMacSliderCtrl to a dialog

  • Add the desired files to your project.
  • Add the #include directive to the header file of your dialog class.
  • Add a slider control to your dialog in the resource editor.
  • Use ClassWizard to add a member variable of type CMacSliderCtrl for the corresponding controls you just added. If the CMacSliderCtrl classe is not in the Variable Type list, choose CSliderCtrl, and manually change the types in the header file of your dialog class.
  • Known bugs

    There is one problem with the CMacSliderCtrl class that have been unable to fix. If run the sample application and change the slider's thumb, channel or selection colors, you will notice that the colors do not change immediately. If you click on the slider, then the color will change. In my SetXXXColor() functions, I call RedrawWindow() so the control is drawn with the new color. RedrawWindow() starts the painting process, which sends the NM_CUSTOMDRAW message for the prepainting stage. I then return CDRF_NOTIFYITEMDRAW in my OnCustomDraw, which is supposed to request prepaint notifications for each item. But the item prepaint notifications are never sent. If anyone can come up with a solution for this I would love to hear about it.

    Downloads

    Special Note: The demo and source files are the sames available in the CMacProgressCtrl article.
    Download demo project - 35 Kb
    Download source - 11 Kb


    Comments

    • SetChannelColor() doesn't work if change orientation to Horizontal?

      Posted by Legacy on 03/16/2000 12:00am

      Originally posted by: zigzag

      Very COOL! But if you change the orientation of CMacSliderCtrl from Vertical to Horizontal, the SetChannelColor() will not work. Can't change the Channel Color of CMacSliderCtrl!
      Why?

      Reply
    • How to do a transparent background beside CMacSliderCtrl?

      Posted by Legacy on 02/01/2000 12:00am

      Originally posted by: Roland Chanishvily

      How to do a transparent background beside CMacSliderCtrl?
      I am beginner, sorry if question foolish ;(

      Reply
    • Kludgy, but it fixes the redraw-after-color-change problem...

      Posted by Legacy on 01/13/2000 12:00am

      Originally posted by: James R. Twine

         Had a similar problem with the updating of a Custom-Draw ListView control...  In place of your RedrawWindow(...) calls, use:
      
      

      EnableWindow( FALSE );
      EnableWindow( TRUE );

      This "blipping" of the window state will cause Custom Draw to correctly send a full set of drawing messages.

      -=- James.

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

    Top White Papers and Webcasts

    • As mobile devices have pushed their way into the enterprise, they have brought cloud apps along with them. This app explosion means account passwords are multiplying, which exposes corporate data and leads to help desk calls from frustrated users. This paper will discover how IT can improve user productivity, gain visibility and control over SaaS and mobile apps, and stop password sprawl. Download this white paper to learn: How you can leverage your existing AD to manage app access. Key capabilities to …

    • Live Event Date: September 16, 2014 @ 11:00 a.m. ET / 8:00 a.m. PT Are you starting an on-premise-to-cloud data migration project? Have you thought about how much space you might need for your online platform or how to handle data that might be related to users who no longer exist? If these questions or any other concerns have been plaguing you about your migration project, check out this eSeminar. Join our speakers Betsy Bilhorn, VP, Product Management at Scribe, Mike Virnig, PowerSucess Manager and Michele …

    Most Popular Programming Stories

    More for Developers

    Latest Developer Headlines

    RSS Feeds