[IronPython] How to capture a 'Carriage Return' in a windows form ?

[Curt Hagenlocher]

It sounds like you're hooking the KeyPress event instead of the KeyDown
event. That's why you get a KeyChar instead of a KeyCode and it also might
be why the code isn't working as you expect.

I can get the Keys enumeration just fine:
IronPython 2.6 Beta 1 DEBUG (2.6.0.10) on .NET 2.0.50727.3053
Type "help", "copyright", "credits" or "license" for more information.
>>> import clr
>>> clr.AddReference('System.Windows.Forms')
>>> from System.Windows.Forms import Keys
>>> Keys.Enter
<System.Windows.Forms.Keys object at 0x000000000000002B [Return]>
>>>



On Thu, Jul 9, 2009 at 1:32 PM, Summer_Intern <itssivaguru at gmail.com> wrote:

>
> Hello,
>
> Thanks for the Suggestion . I set the 'AcceptsReturn = True' for the
> textbox.
> But the problem I found is that its not able to recognize the 'Enter'key
> press .
>
> Here is the Code :
>
>        def OnKeyPress(self,sender,args):
>                print (args.KeyChar)
>                if(args.KeyChar == Keys.Return):
>                        print 'Enter Key Pressed'
>
> 1) I tried args.KeyCode . It returned an exception
> 2) I tried if(args.KeyChar == Keys. Enter) , the if condition is not
> passing
> when I press the Enter Key . Where as a new line is printed on the console.
> 3) Same behavior when I have if(args.KeyChar == Keys.Return):
>
> I think its not able to understand the enum 'Keys'.
> I also tried doing 'from System.Windows.Forms import Keys'. but still no
> good .
>
> Any idea whats missing or incorrect ?
>
> Thanks !
>
> briancurtin wrote:
> >
> > On Wed, Jul 1, 2009 at 09:31, Sivaguru Perambalam
> > <itssivaguru at gmail.com>wrote:
> >
> >> Hello ,
> >>
> >> I have a Windows form with a text box and a button.
> >> What I want to implement it, when the user hits the 'Enter' key in the
> >> text
> >> box, the function that's linked to the ButtonClick event has to be
> >> invoked.
> >> Please give me like a code example of how this could be done in a
> simpler
> >> way, since I am not familiar with Forms or GUI stuff .
> >>
> >> Thanks !
> >>
> >
> > You could check out the OnKeyDown event:
> >
> http://msdn.microsoft.com/en-us/library/system.windows.forms.control.onkeydown(loband).aspx
> .
> > The C# example pretty easily translates to IronPython, so you could
> follow
> > that and check when the KeyEventArgs.KeyCode is equal to Keys.Return,
> then
> > call your ButtonClick method.
> >
> > _______________________________________________
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> > Users at lists.ironpython.com
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> >
> >
>
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>
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