A couple noob questions

1. How can I make it so something happens when a key is pressed? In VB6 it's like this (without the declaration):

Code:

If GetAsyncKeyState(vbKeynanana) Then
stuff.happens
End If

2. What's the sendkeys format in .NET

I'll be updating this when I have more questions. Thanks everyone!

 

Use MSDN.

For your first question: What I did was save a blank keyboard state, and compare the keyboard state to check the difference, and then you have whether a key is pressed. I got the method from using XNA.

For your second question, use SendKeys.Send()

 

Isn't it recommended to switch to SendMessage now because Sendkeys was deprecated in Vista?

 

I'm just learning .NET - I have no idea how to do that.

 

Code:

sendkeys.send (keys.YOUR KEY!)

if u didnt no already jst makin sure

and if u want it to detect a key press add this to form keypress property..

Code:

If e.keycode = Keys.YourKey Then
            'W/E u want it to do wen pressed
        End If

Code:

 Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
        If e.KeyCode = Keys.BrowserBack Then
            WebBrowser1.GoBack()
        End If
    End Sub

 

for this you need a button named Button1
just keep things simple like you had it:

Code:

Friend Class Form1
 Inherits System.Windows.Forms.Form

 Private Declare Function GetAsyncKeyState Lib "User32" (ByVal vbKey As Long) As Integer

 Private Sub Button1_Click(ByVal Sender As Object, ByVal eArgs As EventArgs) Handles Button1.Click
  If GetAsyncKeyState(32) Then
   MsgBox("The space bar was pressed")
  End If
 End Sub

End Class

However, I experimented with the return values of GetAsyncKeyState.
For this you need a label named Label1 and a timer named Timer1
Here an application to this result:

Code:

Friend Class Form1
 Inherits System.Windows.Forms.Form

 Private Declare Function GetAsyncKeyState Lib "User32" (ByVal vbKey As Long) As Integer


 Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
  Label1.Text = GetAsyncKeyState(32).ToString
  If Label1.Text = "0" Then
   Label1.Text &= vbNewLine & "The key is released."
  ElseIf Label1.Text = "1" Then
   Label1.Text &= vbNewLine & "The key was pressed."
  ElseIf Label1.Text = "-32767" Then
   Label1.Text &= vbNewLine & "The key is down."
  ElseIf Label1.Text = "-32768" Then
   Label1.Text &= vbNewLine & "The key has been pressed within the last 1000 milliseconds."
  End If
 End Sub

End Class

That's how you detect a keypress in VB.NET, but it works best with a timer with an interval from 300 to 500 ms.

And, just to verify, they are correct when they say that

Code:

SendKeys.Send(ByVal Keys As String, ByVal Control As System.Windows.Forms.Control, ByVal Wait As Boolean)

is the correct method to use when sending text to the open application that has input focus.

 

i haven't used visual basic in a while, but i'm pretty sure you can use GetAsyncKeyState. go to the form's key down property (not sure) and add this code.

Code:

if GetAsyncKeyState(keys.F1) then
messagebox.show("hello")
end if

 

I dunno, is it?