C#

public class HardFileStream : FileStream
{
  private bool hardPositionSet;

  public HardFileStream( string path )
    : base( path, FileMode.OpenOrCreate, FileAccess.ReadWrite ) {}

  public bool HasHardPositionSet
  {
    get
    {
      return hardPositionSet;
    }
  }

  // Sets the position of the file stream and prevents seeking to other positions.
  public void SetHardPosition( long pos )
  {
    base.Position = pos;
    hardPositionSet = true;
  }

  // Releases the hold on seeking.
  public void ReleaseHardPosition()
  {
    hardPositionSet = false;
  }

  public override long Position
  {
    get
    {
      return base.Position;
    }
    set
    {
      if( !hardPositionSet )
        base.Position = value;
    }
  }

  public override bool CanSeek
  {
    get
    {
      return !hardPositionSet;
    }
  }

  public override long Seek( long offset, SeekOrigin origin )
  {
    if( !hardPositionSet )
    {
      return base.Seek( offset, origin );
    }
    return 0;
  }
}

HardFileStream fs = new HardFileStream( "test.dat" );
Image img;
img = Image.FromFile( "image1.jpg" );
img.Save(fs,ImageFormat.Jpeg);
img.Dispose();

long p2 = fs.Position;
img = Image.FromFile( "image2.jpg" );
img.Save( fs, ImageFormat.Jpeg );
img.Dispose();

fs.Position=0; //set the stream position to the start of image1
pictureBox1.Image = Image.FromStream(fs);
fs.SetHardPosition( p2 ); //set the stream position to the start of image2
pictureBox2.Image = Image.FromStream(fs);
fs.ReleaseHardPosition();

"we must lose precision to make significant
      statements about complex systems."
              -deKorvin on uncertainty

Kuira wrote:

Is there a way such that I can use the Process to store it as a string without resorting to using a shell to execute the command, store it as a text file, read its contents then removing the temporary text file?

Seraphin wrote:

Now I need all Keys with value "1". It is possible to extract them without a for loop?

Seraphin wrote:

each node needs ALL nodes from the upper levels to check.

Seraphin wrote:

Simple example:

[$0001][00]
[$0002][01]
[$0003][04]
[$0004][01]
[$0005][02]

Recursion - check element and its connectors

1. 0001 - my for loop checks all connectors -> Result: 0002 and 0004 (because Key is 01).

Seraphin wrote:

2. now check the connectors for connectors (we have 0002 and 0004)
3. 0002 has 0005(key = 02)
and so on .....

<br />
switch(naam)<br />
{<br />
.   case "textbox1":<br />
.             TextBox1.Text="...";<br />
.                      break;<br />
.   case "textbox2"<br />
.   //........<br />
}<br />

// From within your form
int i = 9;
string naam = "textBox" + Convert.toString( i );
Control targetControl = null;

foreach( Control c in Controls )
{
  if( c.Name == naam )
  {
    targetControl = c;
    break;
  }
}

if( targetControl != null )
{
  // Do something to the control here. If you need TextBox-
  // specific stuff, cast it here. Don't forget to catch the
  // InvalidCastException, just in case.
}

"we must lose precision to make significant
      statements about complex systems."
              -deKorvin on uncertainty