Send Keys to another App's edit box

[Larry Adams]

I'm looking for a way to eneter text into another app's edit box (It's
a logon popup box). I know the control's handle, so I tried using the
API function SendMessage. That didn't work for me, because the message
parameter for that function is of the cardinal type. I need to enter
text followed by 3 carriage returns. Is there a reasonable way to do
this with Delphi 5?

[Lee J. Moore]

"Larry Adams" <sky...@flash.net> wrote in message
news:8kjhu9$do...@bornews.borland.com...

> I need to enter
> text followed by 3 carriage returns. Is there a reasonable way to do
> this with Delphi 5?

Well as long as you have the handle to the edit control:

SendText := 'This string should be sent to an edit control' +#13+#13+#13+
'Three carriage returns just took place!';
For Count := 1 to length(SendText) do
SendMessage(Wnd, WM_CHAR, Ord(SendText[Count]), 0 );

Hope that helps.

Best regards
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Remove the monarchy to email me
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[Babür Şaylan]

Did u try Keybd_Event command?

Larry Adams wrote in message <8kjhu9$do...@bornews.borland.com>...

>I'm looking for a way to eneter text into another app's edit box (It's
>a logon popup box). I know the control's handle, so I tried using the
>API function SendMessage. That didn't work for me, because the message

>parameter for that function is of the cardinal type. I need to enter

[Oracle At Delphi]

Here is a routine that simplifies sending a keystroke to a known
window handle.

procedure SendKey(hWnd: THandle; KeyStroke: Word);
begin
PostMessage(hWnd, WM_SETFOCUS, 0, 0);
PostMessage(hWnd, WM_KEYDOWN, KeyStroke, 0);
PostMessage(hWnd, WM_KEYUP, KeyStroke, 0);
end;

Now lets add a routine to send a string:

procedure SendString(hWnd: THandle; S: String);
var I: Integer;
begin
For I := 1 to Length(S) do SendKey(hWnd, S[I]);
SendKey(hWnd, VK_RETURN); // Send a Carriage Return
end;

I use postmessage, you should avoid SendMessage in this situation
because of its send and wait nature, whereas PostMessage just
posts the message in that windows processing queue.
Hope this helps.