How to draw an arc through three points in VB6?

Question

1.00/5 (1 vote)

See more:

Hello,
I am working in VB6. I have to draw an arc through three-point on a Form. I dont know how to start doing this! I have this question with your ideas to help me solve it. Thanks.

Posted 4-Feb-14 3:03am

Andrewpeter

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Yvan Rodrigues · Accepted Answer · 2014-02-04T03:14:00

Solution 1

1. To draw on a Form, you need to subclass the form an override Control.OnPaint[^]. This gives you access to a GDI+ Graphics[^] object that you use to draw.

See User-Drawn Controls[^] or Custom Drawing User Control Sample[^].

2. To draw an arc through 3 points, see Ellipses and Arcs in GDI+[^] or Graphics Paths in GDI+[^].

Follow-up:

Sergey is right. #1 applies to Windows Forms (.NET), and won't help you.

#2 should still work but you still need access to a GDI+ Graphics object. It is possible, but not as easy with VB6. These may help:

A GDI+ Introduction for Visual Basic 6 Programmers[^]

GDI+ wrapper for VB6[^]

Posted 4-Feb-14 3:14am

Yvan Rodrigues

Updated 4-Feb-14 5:56am

v2

Comments

Andrewpeter 4-Feb-14 9:52am

Thanks. GDI+ with VB6 is a difficult problem. I'll try to do it. My vote is 5 for you.

Sergey Alexandrovich Kryukov 4-Feb-14 11:10am

It won't work for you at all. The solution of for .NET. A good idea is to forget VB6 forever as nightmare. It was never any adequate tool, even at the moment of its introduction to the market.
—SA

Sergey Alexandrovich Kryukov 4-Feb-14 11:08am

Unfortunately, none of those referenced articles solve this particular simple mathematical problem... It should be solved from scratch, it may or may not have the solution or have many solutions, etc...
—SA

Yvan Rodrigues 4-Feb-14 11:57am

Right you are, my bad. See follow-up.