×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Making a rotating knob in VB how to??

Making a rotating knob in VB how to??

Making a rotating knob in VB how to??

(OP)

I would like to make a Knob in VB that I can grab with the mouse pointer and rotate. Think should be started with only a line that could be rotated when grabed. I dont know but been reading about bitmaps and pixels and maybe this is the way to go. Is there an easier way to do it? I just want some general ideas.
Thanks

Rafael

RE: Making a rotating knob in VB how to??

You don't have to re-invent the wheel (or knob either)! there are a number of ocx controls available either free or for a small charge. A quick google for 'knob ocx' will find several, including:
http://www.programmersheaven.com/zone15/cat228/index.htm

If you want to roll your own, start with a picturebox control and a line control in that box. Use the picturebox width and height values (divided by 2) to set the line x1 and x2 coordinates and the picturebox mouse events to set the line x2 and y2 coodinates

Good Luck
johnwm
________________________________________________________
To get the best from these forums read FAQ731-376 before posting

RE: Making a rotating knob in VB how to??

(OP)
THANKS JOHNWM I JUST WANTED TO GO TRU THE CHALLENGE BUT LIKE YOU SAID DONT HAVE TO RE-INVENT THE KNOB.

THANKS
RAFAEL

Rafael

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close