C#

//declaring three variables
GLUtesselator* gPtr =...;
        GLenum gType =...;
        void(* gFuncPtr  )(void);
        gFuncPtr = ...;

// call the function
gluTessCallback(gPtr, gType, gFuncPtr);

<br />
		[STAThread]<br />
		static void Main() <br />
		{<br />
			Application.Run(new myForm());<br />
		}<br />

myhas["David"] = "C#";

string item1 = myhash["David"]

foreach( string key in myhash.Keys )
{
  // 1st iteration key holds "David"
  string item1 = myhash[key];
  // item1 now holds "C#"
}

if( myhash.Contains("David") )
{
  // do something
}

if( myhash.ContainsValue("C#") )
{
  // do something
}

<br />
string[] months = {"Jan","Feb","Mar",...}<br />
<br />
		private int GetMonthIndex(string mo){<br />
			for(int i=0;i<mos.Length;i++){<br />
				if(mos[i]==mo)return i+1;<br />
			}<br />
			return -1; // <-- if it doesn't pan out...<br />
		}<br />

<br />
$hash{'David'} = 'C#';<br />
$hash{'Chris'} = 'Perl';<br />
@keys = grep { $hash{$_} eq 'Perl' } keys %hash;  #perl is s1ck<br />

<br />
		public static string GrepHashForKey(Hashtable ha, string search){<br />
			foreach(object o in ha.Keys){<br />
				if(ha[o].ToString().Equals(search))<br />
					return o.ToString();<br />
			}<br />
			return "";<br />
		}<br />

ArrayList months = new ArrayList();
months.Add("January");
months.Add("February");
// .... etc

int monthNum = months.IndexOf("January") + 1; 
// +1 to account for the zero-based index.

string monthName = months[monthNum - 1];
// -1 to account for the zero-based index.

static string PrintMonth(int i)
{
   return new DateTime(0).AddMonths(i).ToString("MMMM");
}

static int PrintMonthNr(string month)
{
   for (int i = 0; i < 12; i++) 
   {
      if (PrintMonth(i) == month) return i;
   }
   return -1;//some impossiblerroroccured
}

• Create a new form.
• Set the FormBorderStyle to FixedDialog.
• Add your controls.
• Set the AcceptButton property of the form to the default button, and the CancelButton property to the button you want to "click" when you press the "Escape" key.
• For each button, set the DialogResult property to the relevant value (DialogResult.Yes, DialogResult.No, etc.)
• Use the following:
  C#

  VerifyDialog myDialog = new VerifyDialog();
  DialogResult ret = myDialog.ShowDialog();
  if (ret == DialogResult.Yes)
  {
      // Do it!
  }

MessageBox.Show("Are you sure you want to do this?", 
    "Are you sure?", 
    MessageBoxButtons.YesNo
);