SendKeys() permission denied error in Visual Basic

Question

I am trying to use the SendKeys() command to another window with my VB6 app.

What I wanted is to click a button, and then have 10 seconds to go to the other window before the app sends some keys to that window. I got everything sorted but for some reason when I call something like this:

SendKeys ("A")

I get this error:

Run-time error '70':

Permission denied

Does anyone know a way around this? Thanks.

Answer 1

For Windows 7: Change the UAC settings to never notify.

For Windows 8 and 10:
Add this method to any module:

Public Sub Sendkeys(text as variant, Optional wait As Boolean = False)
   Dim WshShell As Object
   Set WshShell = CreateObject("wscript.shell")
   WshShell.Sendkeys cstr(text), wait
   Set WshShell = Nothing
End Sub 

It's worked fine for me in windows 10.

Answer 2

Take a look at what Karl Peterson worked up as a fix for this under Vista:

SendInput

Answer 3

Replacement for VB6 SendKeys is WScript.Shell SendKeys, like this:

Set WshShell = CreateObject("WScript.Shell")
WshShell.SendKeys "1{+}"

See MSDN for help.

Answer 4

In a public Module add:

Public Sub Sendkeys(text$, Optional wait As Boolean = False)
    Dim WshShell As Object
    Set WshShell = CreateObject("wscript.shell")
    WshShell.Sendkeys text, wait
    Set WshShell = Nothing
End Sub

This will "overwrite" SendKeys Function