Drawing in a Pocket PC Picture Box

Drawing in a Pocket PC Picture Box

• MMV2007

  Thanks Manav but that's not the problem. The problem is that while in a windows application I can do something like this:

  private pictureBox_Paint (object sender, PaintEventArgs e)

  {

  e.Graphics.DrawImage(...);

  }

  I can't do the same thing in a Pocket PC application because the picture box doesn't have a Paint event. I should also say that my application involves image transformations and that's why I prefere DrawImage to pictureBox1.Image=bitMap. Thanks!

  
  

• Wil Burton

  I can't. I need the Picture Box. I've created a custom picture box which has a paint event and that can be associated to CreateGraphics. The problem now is that I have a terrible flickering whenever I try to draw a line or a rectangle over the image (because of the Refresh in the Mouse Move event).
  

• AWOLMAN

  PictureBox is used to display a picture - you can either associate one at the design time or set one at runtime using PictureBox.Image property. e.g. below

  byte[] buffer = {}; // read bytes

  System.IO.MemoryStream stream = new System.IO.MemoryStream(buffer);

  Bitmap bitMap = new Bitmap(stream);

  pictureBox1.Image = bitMap;

  Manav

  
  
  

• albidochon

  PictureBox has Paint event in NETCF V2; you just can't see it in designers due to a bug. Hook it up manually and it would work.

  Alternatively get rid of picture box and do DrawImage on a form instead.

  
  
  

• RizwanSharp

  You should also check this MSDN article http://msdn.microsoft.com/library/en-us/mobilesdk5/html/mob5samInk2.asp

  Manav

  
  
  

• Robert3234

  Thanks Ilya. It really appears that the Paint event can be added manually although I'm getting the following warning: Members not supported by the device platform should not be called: System.Windows.Forms.PictureBox.add_Paint is not a supported method in this platform. And I'm using the NETCF 2.0. Anyway, I have other problem. How to associate a Graphics object to the Picture Box

  In a windows application I could make:

  Graphics g = pictureBox1.CreateGraphics; // this isn't possible in NETCF

  PaintEventArgs e = new PaintEventArgs (g, new Rectagle(..));

  pictureBox1_Paint = (sender, e); //here I just call the Paint event

  Do you have any idea Thanks!

  
  

• MartinHowe

  This warning is produced due to the very same bug and could be ignored.

  There's no CreateGraphics on PB in NETCF so you can not. As I suggested before, consider getting rid of PB and draw on the form directly.

  
  
  

• Chris Honcoop

  Moving to Smart Device General forum where it has got better chance of being answered.

  -Thanks,

  Mohit

  
  
• Drawing in a Pocket PC Picture Box