CODEWITHSUNDEEP
c#.netwinformsimage
RandomDude
RandomDude

Reputation: 117

Moving a picture quickly

I Need to move a picture in my Windows Forms application.

This works but is terribly slow. Are there any ways to move a picture faster? I want to do this because I want to reach a "Flyin' effect".

// First try
for (int i = 0; i < 500; i++)
{
  //Tempbox is a picturebox
  this.Tempbox.Location = new Point(this.Tempbox.Left++, 0);
  Application.DoEvents();
  System.Threading.Thread.Sleep(50);
}

// Second try
using (Graphics g = Graphics.FromImage(BufferBm))
{
  for (int i = 0; i < 500; i++)
  {
    g.DrawImage(tempContolImage, new System.Drawing.Point(i, 0));
    this.Tempbox.Image = BufferBm;
    Application.DoEvents();
    System.Threading.Thread.Sleep(50);
  }
}

Upvotes: 0

Views: 136

Answers (3)

speti43
speti43

Reputation: 3046

I would also recommend WPF because it uses directx, but if you don't have time to learn it, this can help you:

How to fix the flickering in User controls

Set DoubleBuffered = true;

Put this hack into the form code:

protected override CreateParams CreateParams {
  get {
    CreateParams cp = base.CreateParams;
    cp.ExStyle |= 0x02000000;  // Turn on WS_EX_COMPOSITED
    return cp;
  }
}

If you have usercontrol put this into it's code:

protected override CreateParams CreateParams {
  get {
    var parms = base.CreateParams;
    parms.Style &= ~0x02000000;  // Turn off WS_CLIPCHILDREN
    return parms;
  }
}

Upvotes: 3

Cahit Burak K&#252;&#231;&#252;ks&#252;tc&#252;
Cahit Burak K&#252;&#231;&#252;ks&#252;tc&#252;

Reputation: 587

  • One of the easiest way can be drawing the image on a panel or etc -like you did- then move it on the form.
  • Another way can be using transformation techniques.

Upvotes: 0

Mat
Mat

Reputation: 2072

use WPF. http://msdn.microsoft.com/de-de/library/ms752312(v=vs.110).aspx

you can also mix winForms and WPF.

If you not use WPF make sure to set doublebuffer to true

Upvotes: 2

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