Get the last key pressed when using Edit Control

[LnOrS]

Hi,

I’m using an Edit Control on an MFC dialog. That control must accept numbers only, but they are not integers!! I’d like to filter all keys pressed different than “0123456789.e-“.
I’ve done that but there should be an easiest way to do that. How can I get the code (ASCII) of a key I stroke?
Here’s the code I used:

void CDialog01::OnUpdateEDITValue()
{
CString sAux, sAux1;
float fAux = -1;

GetDlgItemText(IDC_EDIT_Value, sAux);
sscanf(sAux, "%f", &fAux);
if (fAux < 0 && !sAux.IsEmpty())
SetDlgItemText(IDC_EDIT_Time, &quot;&quot;
else
{
sAux1 = sAux.SpanIncluding(&quot;0123456789.e-&quot;
if (sAux.GetLength() != sAux1.GetLength())
SetDlgItemText(IDC_EDIT_Value, sAux1);
}
}


Regards,
LnOrS

 

[Cagliostro]

there you should do subclassing of your edit control. Is much better. John Fill

ivfmd@mail.md

 

[LnOrS]

How can I do that? Have some sugestions?

 

[Cagliostro]

learn about subcalssing in windows and go on. John Fill

ivfmd@mail.md

 

[IonelBurtan]

Subclassing is most indicated here.
1.Read about SubClassDlgItem CWnd member function from MSDN
2.Check out the CTRLTEST sample from MSDN. I think is most suited for what you need.

Hope this helps, s-)

Blessed is he who in the name of justice and good will, shepards the week through the valley of darknees...

http://www20.brinkster.com/ionelb