C#

bool Release;
public void MyMethod()
{
     Release = false;
     UseWaitCursor = true;
     MyControl.Capture = true;
     //Do a lengthy operation...
     UseWaitCursor = false;
     Release = true;
     MyControl.Capture = false;
}

private void MyControl_MouseCaptureChanged(object sender, EventArgs e)
        {
            if(!Release)
               MyControl.Capture = true;
        }

class MyClass : Form
        {
            Control Dummy;
            bool busy;
            MyClass()
            {
                Dummy = new Control();
                busy = false;
                Dummy.MouseCaptureChanged += new EventHandler(Dummy_MouseCaptureChanged);
            }

            public void MyLongMethod()
            {
                busy = true;
                Dummy.Capture = true;
                UseWaitCursor = true;

                // TODO: Add your code here

                busy = false;
                Dummy.Capture = false;
                UseWaitCursor = false;
            }

            void Dummy_MouseCaptureChanged(object sender, EventArgs e)
            {
                if (busy)
                    Dummy.Capture = true;
            }
        }

lushgrass wrote:

turns out this event is only in 2.0

Dummy.LostFocus += new EventHandler(Dummy_LostFocus);

private void Dummy_LostFocus(object sender, System.EventArgs e)
{
    if(Busy)
        Dummy.Capture = true;
}

<br />
public class Form1<br />
{<br />
     private StatusBar status;<br />
     private bool busy;<br />
     private Control control;<br />
<br />
     public Form1()<br />
     {<br />
          status.Capture = true;<br />
          busy = false;<br />
          control = new Control();<br />
          control.Capture = false;<br />
          control.LostFocus += new EventHandler(control_LostFocus);<br />
     }<br />
<br />
     private void control_LostFocus()<br />
     {<br />
          if(busy)<br />
               control.Capture = true;<br />
     }<br />
<br />
     private void Search()<br />
     {<br />
          status.Text = "Searching";<br />
          busy = true;<br />
          control.Capture = true;<br />
<br />
          // search code here<br />
<br />
          control.Capture = false;<br />
          busy = false;<br />
          status.Text = "";<br />
     }<br />
}<br />

public class Form1
{
    private StatusBar status;
    private bool busy;
    private Control control;
    
    public Form1()
    {
        //status.Capture = true;    1)Don't put this or you'll lose capture to the status bar. Whyis that?
        busy = false;
        control = new Control();
        control.Capture = false;
        control.LostFocus += new EventHandler(control_LostFocus);
    }

    private void control_LostFocus()
    {
        if(busy)
            control.Capture = true;
    }

    private void Search()
    {
        status.Text = "Searching";
        busy = true;
        control.Capture = true;
    
        // search code here
    
        busy = false;    //2)This must be before changing the capture to false
        control.Capture = false;
        status.Text = "";
    }
}

if(busy)
    return;

private void m_Control_LostFocus(object sender, EventArgs e)
{
	if(this.m_BusySearching)
	{
		Debug.WriteLine("control_lostfocus: busy");
		this.m_Control.Capture = true;
	}
	else
	{
		Debug.WriteLine("control_lostfocus: not busy");
	}
}

dummy.Capture = true;

dummy.Select();

myControl.Select();
myControl.Capture = true;

myControl.Focus();
myControl.Capture = true;

SearchButton.Enable = false;

lushgrass wrote:

however this doesnt work either.

lushgrass wrote:

how is your Control solution different from Form.Controls?

lushgrass wrote:

i'm not able to add MainMenu items to Form.Controls

lushgrass wrote:

however, there is a this.Capture field. can i use that somehow?

public partial class Form1 : Form
    {
        private delegate void React();

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Thread MyThread = new Thread(new ThreadStart(MySearchMethod));

            foreach (Control C in this.Controls)
                C.Enabled = false;

            MyThread.Start();
            //Code would fall here before the thread finish, so reactivate in anthoer method
        }

        private void Reactivate()
        {
            foreach (Control C in this.Controls)
                C.Enabled = true;
        }

        private void MySearchMethod()
        {
            int temp = 0;
            while(temp < long.MaxValue)
                temp++;

            Invoke(new React(Reactivate));
            //We have to call this method by Invoke to avoid Cross thread access
        }
    }