Hi ng,

I have a problem when trying to focus certain forms.

My application consists of several forms, at first form1 is shown. Clicking
a button here will close form1 and show form2. When form2 i showing, I try
to open the File manager in PPC. From here, I can navigate to my project
folder and open my application by clicking on the .exe. This opens up the
app where I left it, showing form2 - as suspected.

Then I click a button on form2 which closes form2 and create a new instance
of Form1 (the first instance was disposed and it's reference set to null).
On this new instance i've tried to call BringtoFront(), Focus(), Show and
Visible = true, but I simply can't get the form to show. Instead, the file
manager is shown - which is okay, since it's the next form in the Z-order
after form2. But after creating Form1 and calling BringToFront etc. I
believe that form1 should be put on top.

How can I activate form1?

Thanks in advantage,

Hi, there

I am wondering when you click the button on form2, it closes form2 itself
AND
create a new instance of form1, is that right?
If correct, the the sequence of statement is important, for example:
<in form2 instance>
this.Close(); // When it close, who will keep the reference of frm?
form1 frm=new form1();
frm.Show();

Another exampler:
<in form2 instance>
form1 frm=new form1();
frm.Show();
this.Close(); // When it close, it dispose everything in form2, including
frm.

The result of above will cause frm instance disappear, as you've seen.

----------------------------------------------------------------------------
--
You may try the following way.
<in form1 instance>
private void Button1_Click(
form2 frm2=new form2(this); // pass the handle of form1 to form2
frm2.Show();
this.Hide();
<in form2 instance>
private form1 f=null;
public form2(form1 frm)
{
f=frm; // form2 will take the handle of form1 instance
}

private void Button1_Click(object sender, EventArgs e)
{
f.Show();
this.Hide(); // or this.Close();
// then it will back to the original form1, instead of a new instance.
}

"Anders Thomsen" <(E-Mail Removed)> ¦b¶l¥ó
news:(E-Mail Removed) ¤¤¼¶¼g...
> Hi ng,
>
> I have a problem when trying to focus certain forms.
>
> My application consists of several forms, at first form1 is shown.
Clicking
> a button here will close form1 and show form2. When form2 i showing, I try
> to open the File manager in PPC. From here, I can navigate to my project
> folder and open my application by clicking on the .exe. This opens up the
> app where I left it, showing form2 - as suspected.
>
> Then I click a button on form2 which closes form2 and create a new
instance
> of Form1 (the first instance was disposed and it's reference set to null).
> On this new instance i've tried to call BringtoFront(), Focus(), Show and
> Visible = true, but I simply can't get the form to show. Instead, the file
> manager is shown - which is okay, since it's the next form in the Z-order
> after form2. But after creating Form1 and calling BringToFront etc. I
> believe that form1 should be put on top.
>
> How can I activate form1?
>
> Thanks in advantage,
>
>

Actually, it's not form2 who creates form1, but some underlying handlers.
The form1 IS there, as it is focused when I minimize the filemanager.



"Jan Yeh" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Hi, there
>
> I am wondering when you click the button on form2, it closes form2 itself
> AND
> create a new instance of form1, is that right?
> If correct, the the sequence of statement is important, for example:
> <in form2 instance>
> this.Close(); // When it close, who will keep the reference of frm?
> form1 frm=new form1();
> frm.Show();
>
> Another exampler:
> <in form2 instance>
> form1 frm=new form1();
> frm.Show();
> this.Close(); // When it close, it dispose everything in form2,
including
> frm.
>
> The result of above will cause frm instance disappear, as you've seen.

To set focus on a form I had to P/Invoke to get it to work properly. Try
this code:

[DllImport("coredll",EntryPoint="FindWindow")]
public static extern IntPtr FindWindow(string lpClassName,string
lpWindowName);
[DllImport("coredll",EntryPoint="SetForegroundWindow")]
public static extern bool SetForegroundWindow(IntPtr hWnd);

IntPtr hWnd = FindWindow(null,form1.Text);
if(!hWnd.Equals(IntPtr.Zero))
SetForegroundWindow(hWnd);

HTH
Mark Arteaga
www.clearknowledge.com

"Anders Thomsen" <(E-Mail Removed)> wrote in message
news:u6$(E-Mail Removed)...
> Actually, it's not form2 who creates form1, but some underlying handlers.
> The form1 IS there, as it is focused when I minimize the filemanager.
>
>
>
> "Jan Yeh" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> > Hi, there
> >
> > I am wondering when you click the button on form2, it closes form2
itself
> > AND
> > create a new instance of form1, is that right?
> > If correct, the the sequence of statement is important, for example:
> > <in form2 instance>
> > this.Close(); // When it close, who will keep the reference of frm?
> > form1 frm=new form1();
> > frm.Show();
> >
> > Another exampler:
> > <in form2 instance>
> > form1 frm=new form1();
> > frm.Show();
> > this.Close(); // When it close, it dispose everything in form2,
> including
> > frm.
> >
> > The result of above will cause frm instance disappear, as you've seen.
>
>
>

Okay, thanks.

Do you know if there's another way to get the handle of the form - many of
my forms has
the same title.

-and thanks again : )

"Mark Arteaga" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> To set focus on a form I had to P/Invoke to get it to work properly. Try
> this code:
>
> [DllImport("coredll",EntryPoint="FindWindow")]
> public static extern IntPtr FindWindow(string lpClassName,string
> lpWindowName);
> [DllImport("coredll",EntryPoint="SetForegroundWindow")]
> public static extern bool SetForegroundWindow(IntPtr hWnd);
>
> IntPtr hWnd = FindWindow(null,form1.Text);
> if(!hWnd.Equals(IntPtr.Zero))
> SetForegroundWindow(hWnd);
>
> HTH
> Mark Arteaga
> www.clearknowledge.com
>
> "Anders Thomsen" <(E-Mail Removed)> wrote in message
> news:u6$(E-Mail Removed)...
> > Actually, it's not form2 who creates form1, but some underlying
handlers.
> > The form1 IS there, as it is focused when I minimize the filemanager.
> >
> >
> >
> > "Jan Yeh" <(E-Mail Removed)> wrote in message
> > news:%(E-Mail Removed)...
> > > Hi, there
> > >
> > > I am wondering when you click the button on form2, it closes form2
> itself
> > > AND
> > > create a new instance of form1, is that right?
> > > If correct, the the sequence of statement is important, for example:
> > > <in form2 instance>
> > > this.Close(); // When it close, who will keep the reference of frm?
> > > form1 frm=new form1();
> > > frm.Show();
> > >
> > > Another exampler:
> > > <in form2 instance>
> > > form1 frm=new form1();
> > > frm.Show();
> > > this.Close(); // When it close, it dispose everything in form2,
> > including
> > > frm.
> > >
> > > The result of above will cause frm instance disappear, as you've seen.
> >
> >
> >
>
>

yup....on the form set Capture=ture then p/invoke get capture. this will
return the handle.

[DllImport("coredll.dll", EntryPoint="GetCapture", SetLastError=true)]
private static extern IntPtr GetCapture();

HTH
Mark.
"Anders Thomsen" <(E-Mail Removed)> wrote in message
news:u05Dj$(E-Mail Removed)...
> Okay, thanks.
>
> Do you know if there's another way to get the handle of the form - many of
> my forms has
> the same title.
>
> -and thanks again : )
>
> "Mark Arteaga" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> > To set focus on a form I had to P/Invoke to get it to work properly.
Try
> > this code:
> >
> > [DllImport("coredll",EntryPoint="FindWindow")]
> > public static extern IntPtr FindWindow(string lpClassName,string
> > lpWindowName);
> > [DllImport("coredll",EntryPoint="SetForegroundWindow")]
> > public static extern bool SetForegroundWindow(IntPtr hWnd);
> >
> > IntPtr hWnd = FindWindow(null,form1.Text);
> > if(!hWnd.Equals(IntPtr.Zero))
> > SetForegroundWindow(hWnd);
> >
> > HTH
> > Mark Arteaga
> > www.clearknowledge.com
> >
> > "Anders Thomsen" <(E-Mail Removed)> wrote in message
> > news:u6$(E-Mail Removed)...
> > > Actually, it's not form2 who creates form1, but some underlying
> handlers.
> > > The form1 IS there, as it is focused when I minimize the filemanager.
> > >
> > >
> > >
> > > "Jan Yeh" <(E-Mail Removed)> wrote in message
> > > news:%(E-Mail Removed)...
> > > > Hi, there
> > > >
> > > > I am wondering when you click the button on form2, it closes form2
> > itself
> > > > AND
> > > > create a new instance of form1, is that right?
> > > > If correct, the the sequence of statement is important, for example:
> > > > <in form2 instance>
> > > > this.Close(); // When it close, who will keep the reference of
frm?
> > > > form1 frm=new form1();
> > > > frm.Show();
> > > >
> > > > Another exampler:
> > > > <in form2 instance>
> > > > form1 frm=new form1();
> > > > frm.Show();
> > > > this.Close(); // When it close, it dispose everything in form2,
> > > including
> > > > frm.
> > > >
> > > > The result of above will cause frm instance disappear, as you've
seen.
> > >
> > >
> > >
> >
> >
>
>

When I try to deploy my project with VS.NET on the device (PocketPC 2002) OR
on the emulator TOO !,
VS.NET gives me this error while copying the files:
"Error: Cannot establish a connection. Be sure the device is physically
connected to the development computer."

therefore I can't debug, well I could copy the application and see what
happen....
but it would be better if I could use the debugger !