How can I refresh image in picturebox whitout flickering

Question

0.00/5 (No votes)

See more:

Hi,

I want to redraw picturebox's image in a thread in 50 msec intervals.
When I clear the picturebox before redrawing, it flickers.
And when I don't clear, the old image also remains!
(In fact I have two pictures overlaying (pictures background is transparent) and I want to rotate second image by angle on the first one).
My aim is to create a radar screen like real radar.
I saw a project here but I wanted to do my own.

Could you pls tell me what to do??
Should I use another control? Which one?

Thanks.

What I have tried:

Picturebox, Panel Control,
Graphics.Clear(), Panel.Invalidate(), Panel.Refresh(),

Posted 1-Jan-17 21:27pm

jamshid_m

Updated 2-Jan-17 0:07am

Add a Solution

2 solutions

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)

JayantaChatterjee · Answer 1 · 2017-01-01T22:37:00

Solution 1

You can use

Control.DoubleBuffered

to reduce the flickering..

for more info :-
Control.DoubleBuffered Property (System.Windows.Forms)[^]

Posted 1-Jan-17 22:37pm

JayantaChatterjee

Ralf Meier · Answer 2 · 2017-01-02T00:07:00

Solution 2

I can imagine that DoubleBuffered doesn't solve your Problem.
What you can do is : only repaint / refresh those area where the rotating Picture was before and also the area where it is now.

Posted 2-Jan-17 0:07am

Ralf Meier

Comments

jamshid_m 2-Jan-17 11:23am

There is not such component in .NET that can show or draw image effectively!?
I have tried refreshing panel. I can't repaint rotating picture old area.

Ralf Meier 2-Jan-17 12:33pm

No ... you should develop your own customized control which has the Behaviour you want to have.
But I thought, that you still have developed something like this and you are stucking at a special point.
Are you familiar with controls-development ...?

jamshid_m 4-Jan-17 11:42am

Hi Ralf Meier,
Thanks for your reply.
Right now I'm learning WPF, I saw somewhere that in WPF I can do it.
Am I right?

Ralf Meier 5-Jan-17 5:57am

I don't know because I mostly work with Windows-Forms.
But ... I don't think, that a Standard-Control will help you ... I think, the only way is to build your own Control which does exactly what you want.
If else the Suggestion from Solution 1 would solve your Problem - I think it doesn't do ...

What do you want to do now ?

jamshid_m 5-Jan-17 7:25am

I don't know much about WPF.
I read that working with pictures is easy in WPF. Therefore I want to do my job in WPF and call it in Windows-Form.