chr problem !!!

i use the following code for virtual key code conversion

Code:

---

If code = HC_ACTION And wParam <> 257 Then
        CopyMemory kybd, ByVal lParam, Len(kybd)
      Form1.Text1.Text = Form1.Text1.Text & Chr(kybd.vkCode)
        myfunc = CallNextHookEx(Hook, code, wParam, lParam)
        Else
      If code = HC_ACTION And wParam <> 13 Then
        CopyMemory kybd, ByVal lParam, Len(kybd)
      Form1.Text1.Text = Form1.Text1.Text & "enter key"
      ElseIf code < 0 Then
        myfunc = CallNextHookEx(Hook, code, wParam, lParam)
    End If
    End If

---

but it does not give any symbol for key 13 (enterkey) , how to do it ???

i want it write enterkey instead of blank symbol

I think you should replace

If code = HC_ACTION And wParam <> 13 Then

with

If code = HC_ACTION And wParam = 13 Then

I think you should split the code up so it describes exactly what you want to do

Code:

---

If code = HC_ACTION Then
    CopyMemory kybd, ByVal lParam, Len(kybd)
    Select Case wParam
        Case 13
            Form1.Text1.Text = Form1.Text1.Text & "enter key"
        Case Else     
            Form1.Text1.Text = Form1.Text1.Text & Chr(kybd.vkCode)
    End Select
End If
myfunc = CallNextHookEx(Hook, code, wParam, lParam)

---

As far as I understand Virtual Key Codes are in the range 1 to &HFF (255) so there's no need to check for wParam to be greater than 256.
Using the Select Case construct enables you to easily add other 'special cases' if and when required (eg if the user has pressed F1 you wont see anything added to Form1.Text1.Text)

can u please give an example code ... how to but select case ...

Post #3 is an example. What more do you need ?

its not working .... thats why i asked for example

What does 'its not working' mean ?

it still gives blank symbol for enter key ..

it still gives blank symbol for enter key ..

how to ...

There is no symbol for the enter key it is a control key for a carriage return.

The sample doogle posted would put the words "enter key" in your text box.

Try the following !

Code:

---


If code = HC_ACTION And wParam <> 257 Then
        CopyMemory kybd, ByVal lParam, Len(kybd)
      Form1.Text1.Text = Form1.Text1.Text & Chr(kybd.vkCode)
        myfunc = CallNextHookEx(Hook, code, wParam, lParam)
        Else
      If code = HC_ACTION And wParam = vbKeyReturn Then
        CopyMemory kybd, ByVal lParam, Len(kybd)
      Form1.Text1.Text = Form1.Text1.Text & "enter key"
      ElseIf code < 0 Then
        myfunc = CallNextHookEx(Hook, code, wParam, lParam)
    End If
    End If

---

Actually, looking at the original Code I can't see how it works at all.

I assume the code is in a Keyboard Hook routine in which case wParam is the Virtual-key Code and lParam is the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag. (see: http://msdn.microsoft.com/en-us/libr...v=vs.85).aspx) I think I'm surprised that the IDE doesn't crash when the CopyMemory is executed.

In the original code in Post #1 (and the code in Post #12) the second If statement is only executed when HC_ACTION <> 0 or wParam = 257. Since wParam will never exceed 255 the second If statement will never be executed.