C#

using (Bitmap bitmap = new Bitmap(200, 200, PixelFormats.Format24bppRgb))
{
    using (Graphics gfx = Graphics.FromImage(bitmap))
    {
        gfx.DrawImage(originalImage, 0, 0, 200, 200);
    }
    bitmap.Save(@"filename.bmp", ImageFormats.Bmp);
}

int many = 10;
System.Collections.Hashtable AllControls = new Hashtable();
 
for(int x=0;x<=many;x++)
{
	UserControl2 myControl = new UserControl2();
	myControl.Location = new Point(10, x*(myControl.Height+10));
	this.Controls.Add(myControl);
        AllControls.Add(x, myControl);
}

foreach (string key in keys) {      
  ThreadPool.QueueUserWorkItem(new WaitCallback(getValueThreaded), key);    
}    
Console.WriteLine(beans.Capacity);

Kelsen wrote:

In the console the list prints out a capacity of 0 every time. Can anyone explain this?

Leslie Sanford wrote:

Could it be that the console prints out before the thread pool items have a chance to run?

public class SomeClass {
  private static ManagerClass manager = new ManagerClass();

  public static void Main() {
    List<BeanType> beans = manager.getBeans();
    Console.WriteLine(beans.Capacity);
  }
}

Kelsen wrote:

but my list is not being populated after the threads finish.

Kelsen wrote:

Can anyone explain this?

led mike wrote:

The threads are NOT "finished" after they are "queued", they are ummmm... queued.

public class ThreadTest
{
    private static readonly int MAX_THREADS = 5;

    public static void Main()
    {
        ThreadPool.SetMaxThreads(MAX_THREADS, MAX_THREADS);
        for (int i = 0; i < 20; i++)
            ThreadPool.QueueUserWorkItem(new WaitCallback(processThread), (i + 1));
        Thread.Sleep(25000);
        Console.WriteLine("Finished!");
    }

    static void processThread(object obj)
    {
        Console.WriteLine("Thread " + (int)obj + " executing.");
        Thread.Sleep(5000);
    }
}

led mike wrote:

The threads are NOT "finished" after they are "queued", they are ummmm... queued.

goldoche wrote:

but there doesn't seem to be any way of moving the items around