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Resize an image: bug?

microsoft.public.dotnet.languages.vb
Author
26 Apr 2010 9:20 AM
zzz
Hi to all,
inside a subroutine i have this code:

Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
Me.dimensioni.Height * Me.zoom_factor)

When the program goes out of sub I get the error:

System.ComponentModel.Win32Exception non è stata gestita
  Message="Operazione completata"
  Source="System.Drawing"
  ErrorCode=-2147467259
  NativeErrorCode=0
  StackTrace:
       in System.Drawing.BufferedGraphicsContext.CreateCompatibleDIB(IntPtr
hdc, IntPtr hpal, Int32 ulWidth, Int32 ulHeight, IntPtr& ppvBits)
       in System.Drawing.BufferedGraphicsContext.CreateBuffer(IntPtr src,
Int32 offsetX, Int32 offsetY, Int32 width, Int32 height)
       in System.Drawing.BufferedGraphicsContext.AllocBuffer(Graphics
targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
       in
System.Drawing.BufferedGraphicsContext.AllocBufferInTempManager(Graphics
targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
       in System.Drawing.BufferedGraphicsContext.Allocate(IntPtr targetDC,
Rectangle targetRectangle)
       in System.Windows.Forms.Control.WmPaint(Message& m)
       in System.Windows.Forms.Control.WndProc(Message& m)
       in
System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       in System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&
m)
       in System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd,
Int32 msg, IntPtr wparam, IntPtr lparam)
       in System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG&
msg)
       in
System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32
dwComponentID, Int32 reason, Int32 pvLoopData)
       in
System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32
reason, ApplicationContext context)
       in
System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason,
ApplicationContext context)
       in System.Windows.Forms.Application.Run(ApplicationContext context)
       in
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
       in
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
       in
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[]
commandLine)
       in EGF.My.MyApplication.Main(String[] Args) in
17d14f5c-a337-4978-8281-53493378c1071.vb:riga 81
       in System.AppDomain._nExecuteAssembly(Assembly assembly, String[]
args)
       in System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence
assemblySecurity, String[] args)
       in Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       in System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       in System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
       in System.Threading.ThreadHelper.ThreadStart()
  InnerException:

I tried to insert the code inside a try catch but without success.
Can anyone help me?
Thanks

Author
26 Apr 2010 10:17 AM
Armin Zingler
Am 26.04.2010 11:20, schrieb zzz:
> Hi to all,
> inside a subroutine i have this code:
>
> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
> Me.dimensioni.Height * Me.zoom_factor)

Which event handler calles this sub routine?

What does

  debug.print(Me.PictureBox1.Size.tostring)

output directly after the assignment?



--
Armin
Author
26 Apr 2010 12:38 PM
zzz
Show quote Hide quote
"Armin Zingler" <az.nospam@freenet.de> ha scritto nel messaggio
news:%23Tes8nS5KHA.1932@TK2MSFTNGP05.phx.gbl...
> Am 26.04.2010 11:20, schrieb zzz:
>> Hi to all,
>> inside a subroutine i have this code:
>>
>> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
>> Me.dimensioni.Height * Me.zoom_factor)
>
> Which event handler calles this sub routine?
>
> What does
>
>  debug.print(Me.PictureBox1.Size.tostring)
>
> output directly after the assignment?
>
>
>
> --
> Armin

My code is inside
..MouseWheel event( is about zooming an image displayed in a form).

Private Sub pict_MouseMove(ByVal sender As System.Object, ByVal e As
System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseWheel

try

If e.Delta < 0 Then

Me.zoom_factor *= 2

Else

Me.zoom_factor /= 2

End If

Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
Me.dimensioni.Height * Me.zoom_factor)

Debug.Print(Me.zoom_factor.ToString)

Catch ex As Exception

MsgBox(ex.Message)

End Try



when zoom_factor reaches a 2048 value, I get the error, but the exception is
not raised.....so I really don't known where the dll exception is raised.

Maybe too large dimension of image makes it up....
Author
26 Apr 2010 1:32 PM
Patrice
Hello,

> when zoom_factor reaches a 2048 value, I get the error, but the exception
> is not raised.....so I really don't known where the dll exception is
> raised.

Looking at the call stack, it seems to happens when the control is painted,
not at the time of the change.

> Maybe too large dimension of image makes it up....

I would really set a max value for the zoom. 2048 likely means you just see
a single pixel on your screen anyway ;-)

--
Patrice
Author
26 Apr 2010 1:33 PM
Armin Zingler
Am 26.04.2010 14:38, schrieb zzz:
Show quoteHide quote
>> Am 26.04.2010 11:20, schrieb zzz:
>>> Hi to all,
>>> inside a subroutine i have this code:
>>>
>>> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
>>> Me.dimensioni.Height * Me.zoom_factor)
>>
>> Which event handler calles this sub routine?
>>
>> What does
>>
>>  debug.print(Me.PictureBox1.Size.tostring)
>>
>> output directly after the assignment?
>
> My code is inside
> ..MouseWheel event( is about zooming an image displayed in a form).


> Private Sub pict_MouseMove(ByVal sender As System.Object, ByVal e As
> System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseWheel
>
> try
>
> If e.Delta < 0 Then
>
> Me.zoom_factor *= 2
>
> Else
>
> Me.zoom_factor /= 2
>
> End If
>
> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
> Me.dimensioni.Height * Me.zoom_factor)
>
> Debug.Print(Me.zoom_factor.ToString)
>
> Catch ex As Exception
>
> MsgBox(ex.Message)
>
> End Try


Switch Option Strict On.


> when zoom_factor reaches a 2048 value, I get the error, but the exception is
> not raised.....so I really don't known where the dll exception is raised.

It's shown in the call stack you've posted before. The error occurs as soon
as the picturebox is to be repainted.


> Maybe too large dimension of image makes it up....

Unanswered:

  debug.print(Me.PictureBox1.Size.tostring)

Anyway, it's too large. What are you trying? I guess you have a picturebox
inside another control with Autscroll=true, right? If that large zoom factors
are expected, you must do the painting on your own by painting only the section
that shall be visible at the current scroll position.


--
Armin
Author
26 Apr 2010 2:00 PM
zzz
Show quote Hide quote
"Armin Zingler" <az.nospam@freenet.de> ha scritto nel messaggio
news:ePHBSaU5KHA.620@TK2MSFTNGP02.phx.gbl...
> Am 26.04.2010 14:38, schrieb zzz:
CUT
> Unanswered:
>
>  debug.print(Me.PictureBox1.Size.tostring)
>
> Anyway, it's too large. What are you trying? I guess you have a picturebox
> inside another control with Autscroll=true, right? If that large zoom
> factors
> are expected, you must do the painting on your own by painting only the
> section
> that shall be visible at the current scroll position.
>

Ok, I have turned Option Strict ON.
debug.print(Me.PictureBox1.Size.tostring):

{Width=16384, Height=16384}

I have a picturebox filling a form...so how can I scroll the image when it
is larger than teh form?

How can I paint only the visibile section of the form?

Thanks

Show quoteHide quote
:)
Author
26 Apr 2010 2:35 PM
Armin Zingler
Am 26.04.2010 16:00, schrieb zzz:
> Ok, I have turned Option Strict ON.

Hard to believe. :-) Because:
zoom_factor must be of type Single or Double, otherwise this does not compile:
> Me.zoom_factor /= 2


And if zoom_factor is Single/Double, the following line does not work because
the Size constructor doesn't accept floating point values:

> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
> Me.dimensioni.Height * Me.zoom_factor)


>  debug.print(Me.PictureBox1.Size.tostring):
>
> {Width=16384, Height=16384}

Thx.

> I have a picturebox filling a form...so how can I scroll the image when it
> is larger than teh form?

Put scrollbars on the Form.

> How can I paint only the visibile section of the form?

By passing the appropriate values as the srcWidth/srcHeight parameters
to the graphics.drawimage method called in the Form's paint event.
The srcX/srcY argument values depend on the current scroll position.


--
Armin
Author
26 Apr 2010 2:54 PM
zzz
"Armin Zingler" <az.nospam@freenet.de> ha scritto nel messaggio
news:uiOVm3U5KHA.6052@TK2MSFTNGP02.phx.gbl...
> Am 26.04.2010 16:00, schrieb zzz:
>> Ok, I have turned Option Strict ON.
>
> Hard to believe. :-) Because:

I mean: now I have turned on Option Strict :D

> By passing the appropriate values as the srcWidth/srcHeight parameters
> to the graphics.drawimage method called in the Form's paint event.
> The srcX/srcY argument values depend on the current scroll position.

Can I ask you 3 code rows? ;)
Author
26 Apr 2010 3:10 PM
Armin Zingler
Am 26.04.2010 16:54, schrieb zzz:
> Can I ask you 3 code rows? ;)

Yep, go on asking. :)


--
Armin
Author
26 Apr 2010 3:47 PM
zzz
"Armin Zingler" <az.nospam@freenet.de> ha scritto nel messaggio
news:%23QPITZV5KHA.5880@TK2MSFTNGP04.phx.gbl...
> Am 26.04.2010 16:54, schrieb zzz:
>> Can I ask you 3 code rows? ;)
>
> Yep, go on asking. :)


I mean if you can write the 3 code rows about displaying only the visible
part of the picturebox avoiding in this way the returned exception
Thanks
Author
29 Apr 2010 2:08 PM
Armin Zingler
Am 26.04.2010 17:47, schrieb zzz:
> "Armin Zingler" <az.nospam@freenet.de> ha scritto nel messaggio
> news:%23QPITZV5KHA.5880@TK2MSFTNGP04.phx.gbl...
>> Am 26.04.2010 16:54, schrieb zzz:
>>> Can I ask you 3 code rows? ;)
>>
>> Yep, go on asking. :)
>
>
> I mean if you can write the 3 code rows about displaying only the visible
> part of the picturebox avoiding in this way the returned exception
> Thanks

I didn't answer earlier beause the example I was trying to make takes
more than just 3 rows. You have to change the approach by not using
a Picturebox. So, I leave only some hints: Draw the image on your
own in the control's paint event. You can use a Panel for it; a picturebox
is not required. A simple Control would do it also but you can't use
the designer for that. Add two scrollbars next to the panel. In the
panel's paint event, draw the image using e.graphics.drawimage
There are a lot of overloaded methods, so pick out the one letting
you specify the source and destination areas of the image resp. the
panel. You have to calculate them from the scrollbar's positions and
the current zoom factor.

Success!

--
Armin
Author
26 Apr 2010 3:38 PM
Cor Ligthert[MVP]
You got that already.

The main point is that it should result in integers when it are two
parameters

http://msdn.microsoft.com/en-us/library/system.drawing.size_members.aspx

With option strict on, your already used code should go.

Be aware that you probably want to size the image itself because with the
values you show you need a very big screen as it is about the picturebox,
which you do by using streaming the bitmap using a stream and the
DrawingClass

Show quoteHide quote
"zzz" <z**@tin.it> wrote in message
news:4bd5a90f$0$1108$4fafbaef@reader2.news.tin.it...
>
> "Armin Zingler" <az.nospam@freenet.de> ha scritto nel messaggio
> news:uiOVm3U5KHA.6052@TK2MSFTNGP02.phx.gbl...
>> Am 26.04.2010 16:00, schrieb zzz:
>>> Ok, I have turned Option Strict ON.
>>
>> Hard to believe. :-) Because:
>
> I mean: now I have turned on Option Strict :D
>
>> By passing the appropriate values as the srcWidth/srcHeight parameters
>> to the graphics.drawimage method called in the Form's paint event.
>> The srcX/srcY argument values depend on the current scroll position.
>
> Can I ask you 3 code rows? ;)
>
>
>
Author
26 Apr 2010 10:23 AM
Cor Ligthert[MVP]
Why do you think that this quit standard code which is probably billion
times used has a bug.

Or do you mean in your program, that is possible, but then you can simply
try it by placing some fixed values instead of the calculation.

I assume you have option strict on in top of your program to be sure the
correct types are used.


Show quoteHide quote
"zzz" <z**@tin.it> wrote in message
news:4bd55b2d$0$1117$4fafbaef@reader2.news.tin.it...
> Hi to all,
> inside a subroutine i have this code:
>
> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
> Me.dimensioni.Height * Me.zoom_factor)
>
> When the program goes out of sub I get the error:
>
> System.ComponentModel.Win32Exception non è stata gestita
>  Message="Operazione completata"
>  Source="System.Drawing"
>  ErrorCode=-2147467259
>  NativeErrorCode=0
>  StackTrace:
>       in System.Drawing.BufferedGraphicsContext.CreateCompatibleDIB(IntPtr
> hdc, IntPtr hpal, Int32 ulWidth, Int32 ulHeight, IntPtr& ppvBits)
>       in System.Drawing.BufferedGraphicsContext.CreateBuffer(IntPtr src,
> Int32 offsetX, Int32 offsetY, Int32 width, Int32 height)
>       in System.Drawing.BufferedGraphicsContext.AllocBuffer(Graphics
> targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
>       in
> System.Drawing.BufferedGraphicsContext.AllocBufferInTempManager(Graphics
> targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
>       in System.Drawing.BufferedGraphicsContext.Allocate(IntPtr targetDC,
> Rectangle targetRectangle)
>       in System.Windows.Forms.Control.WmPaint(Message& m)
>       in System.Windows.Forms.Control.WndProc(Message& m)
>       in
> System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
>       in System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&
> m)
>       in System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd,
> Int32 msg, IntPtr wparam, IntPtr lparam)
>       in System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG&
> msg)
>       in
> System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32
> dwComponentID, Int32 reason, Int32 pvLoopData)
>       in
> System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32
> reason, ApplicationContext context)
>       in
> System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32
> reason,
> ApplicationContext context)
>       in System.Windows.Forms.Application.Run(ApplicationContext context)
>       in
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
>       in
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
>       in
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[]
> commandLine)
>       in EGF.My.MyApplication.Main(String[] Args) in
> 17d14f5c-a337-4978-8281-53493378c1071.vb:riga 81
>       in System.AppDomain._nExecuteAssembly(Assembly assembly, String[]
> args)
>       in System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence
> assemblySecurity, String[] args)
>       in Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
>       in System.Threading.ThreadHelper.ThreadStart_Context(Object state)
>       in System.Threading.ExecutionContext.Run(ExecutionContext
> executionContext, ContextCallback callback, Object state)
>       in System.Threading.ThreadHelper.ThreadStart()
>  InnerException:
>
> I tried to insert the code inside a try catch but without success.
> Can anyone help me?
> Thanks
>
>
>
Author
28 Apr 2010 9:55 PM
Chris Dunaway
Show quote Hide quote
On Apr 26, 4:20 am, "zzz" <z***@tin.it> wrote:
> Hi to all,
> inside a subroutine i have this code:
>
> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
> Me.dimensioni.Height * Me.zoom_factor)
>
> When the program goes out of sub I get the error:
>
> System.ComponentModel.Win32Exception non è stata gestita
>   Message="Operazione completata"
>   Source="System.Drawing"
>   ErrorCode=-2147467259
>   NativeErrorCode=0
>   StackTrace:
>        in System.Drawing.BufferedGraphicsContext.CreateCompatibleDIB(IntPtr
> hdc, IntPtr hpal, Int32 ulWidth, Int32 ulHeight, IntPtr& ppvBits)
>        in System.Drawing.BufferedGraphicsContext.CreateBuffer(IntPtr src,
> Int32 offsetX, Int32 offsetY, Int32 width, Int32 height)
>        in System.Drawing.BufferedGraphicsContext.AllocBuffer(Graphics
> targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
>        in
> System.Drawing.BufferedGraphicsContext.AllocBufferInTempManager(Graphics
> targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
>        in System.Drawing.BufferedGraphicsContext.Allocate(IntPtr targetDC,
> Rectangle targetRectangle)
>        in System.Windows.Forms.Control.WmPaint(Message& m)
>        in System.Windows.Forms.Control.WndProc(Message& m)
>        in
> System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
>        in System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&
> m)
>        in System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd,
> Int32 msg, IntPtr wparam, IntPtr lparam)
>        in System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG&
> msg)
>        in
> System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32
> dwComponentID, Int32 reason, Int32 pvLoopData)
>        in
> System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32
> reason, ApplicationContext context)
>        in
> System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason,
> ApplicationContext context)
>        in System.Windows.Forms.Application.Run(ApplicationContext context)
>        in
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
>        in
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
>        in
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[]
> commandLine)
>        in EGF.My.MyApplication.Main(String[] Args) in
> 17d14f5c-a337-4978-8281-53493378c1071.vb:riga 81
>        in System.AppDomain._nExecuteAssembly(Assembly assembly, String[]
> args)
>        in System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence
> assemblySecurity, String[] args)
>        in Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
>        in System.Threading.ThreadHelper.ThreadStart_Context(Object state)
>        in System.Threading.ExecutionContext.Run(ExecutionContext
> executionContext, ContextCallback callback, Object state)
>        in System.Threading.ThreadHelper.ThreadStart()
>   InnerException:
>
> I tried to insert the code inside a try catch but without success.
> Can anyone help me?
> Thanks

Try this:

http://www.bobpowell.net/zoompicbox.htm

Chris
Author
1 May 2010 11:10 AM
giggino
Thanks, it helped a lot ;)


Show quoteHide quote
"Chris Dunaway" <dunaw***@gmail.com> ha scritto nel messaggio
news:cee2c024-420b-4080-8ca3-904df2ddb3b9@e1g2000yqe.googlegroups.com...
> On Apr 26, 4:20 am, "zzz" <z***@tin.it> wrote:
>> Hi to all,
>> inside a subroutine i have this code:
>>
>> Me.PictureBox1.Size = New Size(Me.dimensioni.Width * Me.zoom_factor,
>> Me.dimensioni.Height * Me.zoom_factor)
>>
>> When the program goes out of sub I get the error:
>>
>> System.ComponentModel.Win32Exception non è stata gestita
>>   Message="Operazione completata"
>>   Source="System.Drawing"
>>   ErrorCode=-2147467259
>>   NativeErrorCode=0
>>   StackTrace:
>>        in
>> System.Drawing.BufferedGraphicsContext.CreateCompatibleDIB(IntPtr
>> hdc, IntPtr hpal, Int32 ulWidth, Int32 ulHeight, IntPtr& ppvBits)
>>        in System.Drawing.BufferedGraphicsContext.CreateBuffer(IntPtr src,
>> Int32 offsetX, Int32 offsetY, Int32 width, Int32 height)
>>        in System.Drawing.BufferedGraphicsContext.AllocBuffer(Graphics
>> targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
>>        in
>> System.Drawing.BufferedGraphicsContext.AllocBufferInTempManager(Graphics
>> targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
>>        in System.Drawing.BufferedGraphicsContext.Allocate(IntPtr
>> targetDC,
>> Rectangle targetRectangle)
>>        in System.Windows.Forms.Control.WmPaint(Message& m)
>>        in System.Windows.Forms.Control.WndProc(Message& m)
>>        in
>> System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
>>        in
>> System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&
>> m)
>>        in System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr
>> hWnd,
>> Int32 msg, IntPtr wparam, IntPtr lparam)
>>        in System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG&
>> msg)
>>        in
>> System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32
>> dwComponentID, Int32 reason, Int32 pvLoopData)
>>        in
>> System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32
>> reason, ApplicationContext context)
>>        in
>> System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32
>> reason,
>> ApplicationContext context)
>>        in System.Windows.Forms.Application.Run(ApplicationContext
>> context)
>>        in
>> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
>>        in
>> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
>>        in
>> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[]
>> commandLine)
>>        in EGF.My.MyApplication.Main(String[] Args) in
>> 17d14f5c-a337-4978-8281-53493378c1071.vb:riga 81
>>        in System.AppDomain._nExecuteAssembly(Assembly assembly, String[]
>> args)
>>        in System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence
>> assemblySecurity, String[] args)
>>        in
>> Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
>>        in System.Threading.ThreadHelper.ThreadStart_Context(Object state)
>>        in System.Threading.ExecutionContext.Run(ExecutionContext
>> executionContext, ContextCallback callback, Object state)
>>        in System.Threading.ThreadHelper.ThreadStart()
>>   InnerException:
>>
>> I tried to insert the code inside a try catch but without success.
>> Can anyone help me?
>> Thanks
>
> Try this:
>
> http://www.bobpowell.net/zoompicbox.htm
>
> Chris



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