// private void CalcCallback(IAsyncResult ar)
//{
// // Following line is used when this callback method can not acquire a handle of the delegate, mDeleg, for
// // example, when it is in another class. The AsyncDelegate property was generated by the compiler together
// // with the BeginInvoke and EndInvoke methods.
// // CalcDelegate mDeleg = (CalcDelegate)(ar.AsyncDelegate);
// string strResult = null;
// int iResult = mDeleg.EndInvoke(ref strResult, ar);
// tbResult.Text = Convert.ToString(iResult); // the third textbox
// tbMsg.Text = strResult; // the message textbox
// int i = (int)ar.AsyncState;
// MessageBox.Show("The ar.AsyncState is " + i); // will show 123456789
// }
private void Button_Click_1(object sender, RoutedEventArgs e)
{
//mDeleg = new CalcDelegate(Calc);
//AsyncCallback callback = new AsyncCallback(CalcCallback);
//int input1 = Convert.ToInt16(tbInput1.Text);
//int input2 = Convert.ToInt16(tbInput2.Text);
//string strResult = null; // dummy parameter
//mDeleg.BeginInvoke(input1, input2, ref strResult, callback, 123456789);
CalcDelegate deleg = new CalcDelegate(Calc);
//AsyncCallback callback = new AsyncCallback(CalcCallback);
int input1 = Convert.ToInt16(tbInput1.Text);
int input2 = Convert.ToInt16(tbInput2.Text);
string strResult = null; // dummy parameter
IAsyncResult ar = deleg.BeginInvoke(input1, input2, ref strResult, null, new object());
//deleg.BeginInvoke(input1, input2, ref strResult, callback, new object());
ar.AsyncWaitHandle.WaitOne();
strResult = null;
int iResult = deleg.EndInvoke(ref strResult, ar);
tbResult.Text = Convert.ToString(iResult);
tbMsg.Text = strResult;
}
protected void apress(object sender, EventArgs e)
{
if (!validinput())
{
return;
}
if (button4.Label == "Cancel")
{
button4.Label = "Pending";
Globals.cancelled = true;
return;
}
else if (button4.Label == "Pending")
{
button4.Label = "Cancel";
Globals.cancelled = false;
return;
}
GLib.Timeout.Add(100, new GLib.TimeoutHandler(timerTick));
CalcDelegate cd = RunCalc;
button4.Label = "Cancel";
starttime = DateTime.Now;
IAsyncResult asyncRes = cd.BeginInvoke(textview1.Buffer.Text, xtext.Buffer.Text, ytext.Buffer.Text, ztext.Buffer.Text,
calcprec.Buffer.Text, printprec.Buffer.Text, digitgrp.Active, new AsyncCallback(CalcCallback), null);
}