topic Re: WaitCursor at the command line in .NET Forum

WaitCursor at the command line

hericson — Tue, 11 Aug 2009 09:14:03 GMT

To display the wait cursor when using a form I use System.Windows.Forms Namespace like this (VB.NET):

System.Windows.Forms.Cursor = Cursors.WaitCursor

But how should I do if I don't use a form? I ask for some options from the command line and while executing my code I want to display a wait cursor (still VB.NET).

Re: WaitCursor at the command line

Anonymous — Tue, 11 Aug 2009 14:10:17 GMT

hericson wrote:

> But how should I do if I don't use a form?

Have you considered using a ProgressMeter instead? If you know the
number of iterations it seems like a better option.

Terry

Re: WaitCursor at the command line

hericson — Thu, 13 Aug 2009 08:43:20 GMT

Yes, I have considered that. But I have some problems with the progress meter, testing using a simple for next loop from 1 to 100 it will count all the percents but when using in it my real case it will only show every 6 percents and I can't figure out why.
Secondly I think it should be one way to show an hourglass without a form.

Re: WaitCursor at the command line

Anonymous — Thu, 13 Aug 2009 12:29:56 GMT

Are there only 16 or 17 loops in your real world example?

Re: WaitCursor at the command line

hericson — Thu, 13 Aug 2009 12:59:49 GMT

I had over 5000 loops but I found out that the order of pm.Start and pm.SetLimit made a difference (pm.Start first) and I also had to add pm.Dispose after pm.Stop to get it to work so that's not a problem anymore.

Re: WaitCursor at the command line

Anonymous — Thu, 13 Aug 2009 22:56:10 GMT

You can reference System.Windows.Forms from any app,
even if it doesn't use any forms or UI components.

If for some reason you need to avoid referencing WinForms,
the only other option is P/Invoking the SetCursor() API

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wrote in message news:6234752@discussion.autodesk.com...
To display the wait cursor when using a form I use System.Windows.Forms
Namespace like this (VB.NET):

System.Windows.Forms.Cursor = Cursors.WaitCursor

But how should I do if I don't use a form? I ask for some options from the
command line and while executing my code I want to display a wait cursor
(still VB.NET).

Re: WaitCursor at the command line

Anonymous — Fri, 14 Aug 2009 13:19:14 GMT

Tony Tanzillo wrote:
> You can reference System.Windows.Forms from any app,
> even if it doesn't use any forms or UI components.
>
> If for some reason you need to avoid referencing WinForms,
> the only other option is P/Invoking the SetCursor() API
>

Can you give an example with the correct namespace because when I try
with: System.Windows.Forms.Cursor = Cursors.WaitCursor I'll get an error
message: 'Cursor' is an type in 'Forms' and cannot be use as an expression.

If I have a form I just have this code: Me.Cursor = Cursors.WaitCursor

Re: WaitCursor at the command line

Anonymous — Fri, 14 Aug 2009 14:48:12 GMT

Here's what I use:

{code}

using System.Windows.Forms;
using Autodesk.AutoCAD.Runtime;

namespace MyNamespace
{
public class CurrentCursor : IDisposable
{
private Cursor saved = Cursor.Current;

public CurrentCursor( Cursor newCursor )
{
Cursor.Current = newCursor;
}

public void Dispose()
{
Cursor.Current = this.saved;
}
}

public class WaitCursor : CurrentCursor
{
public WaitCursor()
: base( Cursors.WaitCursor )
{
}
}

// example usage:

public class MyCommands
{
[CommandMethod("MYCOMMAND")
public static void MyCommand()
{
using( new WaitCursor() )
{
// wait cursor is visible here,
// so do what you need to do

} // the prevous cursor is restored here.
}
}

}

{code}

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"Hericson" wrote in message
news:6237315@discussion.autodesk.com...
Tony Tanzillo wrote:
> You can reference System.Windows.Forms from any app,
> even if it doesn't use any forms or UI components.
>
> If for some reason you need to avoid referencing WinForms,
> the only other option is P/Invoking the SetCursor() API
>

Can you give an example with the correct namespace because when I try
with: System.Windows.Forms.Cursor = Cursors.WaitCursor I'll get an error
message: 'Cursor' is an type in 'Forms' and cannot be use as an expression.

If I have a form I just have this code: Me.Cursor = Cursors.WaitCursor

Re: WaitCursor at the command line

hericson — Sat, 15 Aug 2009 12:30:11 GMT

Sorry but I'm not able to convert your sample to VB.NET (lack of skills I guess). I think I can understand the example but not how to make the two classes into VB.NET.

Re: WaitCursor at the command line

Anonymous — Sun, 16 Aug 2009 01:38:16 GMT

Imports System.Windows.Forms
Imports Autodesk.AutoCAD.Runtime

Namespace MyNamespace
Public Class CurrentCursor
Implements IDisposable
Private saved As Cursor = Cursor.Current

Public Sub New(ByVal newCursor As Cursor)
Cursor.Current = newCursor
End Sub

Public Sub Dispose()
Cursor.Current = Me.saved
End Sub
End Class

Public Class WaitCursor
Inherits CurrentCursor
Public Sub New()
MyBase.New(Cursors.WaitCursor)
End Sub
End Class

' example usage:

Public Class MyCommands
_
Public Shared Sub MyCommand()
Using New WaitCursor()
' wait cursor is visible here,
' so do what you need to do

' the prevous cursor is restored here.
End Using
End Sub
End Class

End Namespace

Re: WaitCursor at the command line

Anonymous — Mon, 17 Aug 2009 05:34:54 GMT

For future reference, there are a number of ways to translate C# code to
VB.NET code.

You can use reflector (http://www.red-gate.com/products/reflector/), or any
number of online translators (google 'translate C# to VB').

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Supporting AutoCAD 2000 through 2010

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Email: string.Format("{0}@{1}.com", "tonyt", "caddzone");

wrote in message news:6237829@discussion.autodesk.com...
Sorry but I'm not able to convert your sample to VB.NET (lack of skills I
guess). I think I can understand the example but not how to make the two
classes into VB.NET.

Re: WaitCursor at the command line

hericson — Mon, 17 Aug 2009 19:23:12 GMT

Thanks for the link.

I have a problem in the code above and that is the Implements IDisposable row. It will give me an error I don't understand:

Class 'CurrentCursor' must implement 'Sub Dispose()' for interface 'System.IDisposable'.

Re: WaitCursor at the command line

Anonymous — Mon, 17 Aug 2009 20:32:25 GMT

Change the Dispose() method to:

Public Sub Dispose() Implements IDisposable.Dispose
Cursor.Current = Me.saved
End Sub

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AcadXTabs: MDI Document Tabs for AutoCAD
Supporting AutoCAD 2000 through 2010

http://www.acadxtabs.com

Email: string.Format("{0}@{1}.com", "tonyt", "caddzone");

wrote in message news:6238441@discussion.autodesk.com...
Thanks for the link.

I have a problem in the code above and that is the Implements IDisposable
row. It will give me an error I don't understand:

Class 'CurrentCursor' must implement 'Sub Dispose()' for interface
'System.IDisposable'.

Re: WaitCursor at the command line

Anonymous — Mon, 17 Aug 2009 21:07:46 GMT

{code}
wrote in message news:6238441@discussion.autodesk.com...
Thanks for the link.

I have a problem in the code above and that is the Implements IDisposable
row. It will give me an error I don't understand:

Class 'CurrentCursor' must implement 'Sub Dispose()' for interface
'System.IDisposable'.

Re: WaitCursor at the command line

Anonymous — Mon, 17 Aug 2009 21:09:11 GMT

I hit some send button on the keyboard oops... Tony answered anyway.
"Paul Richardson" wrote in message
news:6238509@discussion.autodesk.com...
{code}
wrote in message news:6238441@discussion.autodesk.com...
Thanks for the link.

I have a problem in the code above and that is the Implements IDisposable
row. It will give me an error I don't understand:

Class 'CurrentCursor' must implement 'Sub Dispose()' for interface
'System.IDisposable'.