Move pictures using keys

Question

3.00/5 (1 vote)

See more:

I want to move my pictures in the form based on key pressing .
Can you tell me an elegant way of doing it.

Suggest a way of selecting a control (eg Picturebox) when application is running.
For eg.-- i want to drag the picture in the form using mouse.

Posted 7-Jul-11 6:12am

Member 7668098

Updated 8-Jul-11 1:25am

v2

Add a Solution

Comments

Sergey Alexandrovich Kryukov 7-Jul-11 17:43pm

Tag it! Forms.
--SA

2 solutions

Solution 1

Handle key event, move as necessary.

private void onKey(object sender, KeyEventArgs e)
{
  switch(e.KeyCode)
  {
     case Keys.Left:
        img.Left++;
        break;
     case Keys.Up:
       img.Top++;
       break;

    ...
  }
}

Posted 7-Jul-11 6:22am

Not Active

Updated 7-Jul-11 12:00pm

v2

Comments

fjdiewornncalwe 7-Jul-11 12:28pm

Simple Elegance... :)

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)

Sergey Alexandrovich Kryukov · Accepted Answer · 2011-07-07T11:53:00

It's important to use KeyDown event, not KeyPress:

C#

MyControl.KeyDown += (sender, eventArgs) => {
    switch switch (eventArgs.KeyCode) {
        case Keys.Left: Image.Left -= step; break;
        case Keys.Right: Image.Left += step; break;
        case Keys.Up: Image.Top -= step; break;
        case Keys.Down: Image.Top += step; break;
    }
}

It's also can be good to check up eventArgs.Modifiers and choose different step depending on if Alt, Control or Shift is pressed.

—SA