Using the Enter key in another program's Textbox

I have used the SendMessage Function to send text to another program's text box. The program requires that the enter key be hit to send the text.
Anyone know how I can make my program use the enter key?:confused:

Use the API SendMessageLong and pass vbKeyReturn as one of the parameters. If you need some source, just ask.

I have not tested this, but this may help you get where you want to be:

1. determine the ascii value of the enter key, it should be 13, but I don't remember if this is hex or base 10. To find the ascii value of any key, use KeyPress, like so:

Private Sub Text1_KeyPress(KeyAscii As Integer)
Print KeyAscii
End Sub

Now, run program and press the enter key

2. Convert this number to a character and use Send Message to send this also, like:
dim KeyAscii as Integer (or could be Long)
dim Acharacter as String

Acharacter = Chr(KeyAscii)

Append Acharacter to the string you wish to send using "&".

Oafo, some code example would help out a lot, thanks.

stevereno, I tried your method but I don't know what constant to use. With WM_SetText, I see a square box.
Here's what I used:

acharacter = Chr(13)
Mess = txtWindow.Text & acharacter
Sendit = SendMessage(qWnd, WM_SETTEXT, ByVal 0&, ByVal Mess)
Is WM_SETTEXT wrong ?

I do not know enough to tell you what value to use as the second parameter. I think you may need to play with a few things unless you can get more experienced help, but here is something you might look into:

go to http://www.allapi.net/apilist/apilist.php?beginletter=S
click on SendMessage
review the examples and see how they have used a variety of things for that second parameter...

Send Message:
Const LB_FINDSTRING = &H18F

Redirect output:
Private Const EM_SETSEL = &HB1
Private Const EM_REPLACESEL = &HC2

Hotkey:
Const WM_SETHOTKEY = &H32
Const WM_SHOWWINDOW = &H18

Rich Text Line Numbers:
Private Const EM_GETLINE = &HC4
Private Const EM_GETLINECOUNT = &HBA
Private Const EM_LINEINDEX = &HBB
Private Const EM_LINELENGTH = &HC1

Drag Form:
Const WM_NCLBUTTONDOWN = &HA1

It almost seems that this number is a function of the app you are sending the string into.

all for now

THANKS A LOT FOR YOUR HELP!
I used: keybd_event(VK_RETURN, 1, 0, 0)
and got it to work. I really appreciate your help.

The only problem with keybd_event is it requires focus. If you can not insure it will have focus, you should try this:

Code:

---


PostMessage (arrays[1], WM_KEYDOWN, 13, 0) ;
PostMessage (arrays[1], WM_KEYUP, 13, 0) ;

---

I took the code from my c++ program, but I do not see why it wouldn't work in vb. The advantage is that it does not require that the form have focus. Hope this helps.

Joe

Here is the VB equivilent of Joey's code.

Code:

---

PostMessage hwnd_of_window, WM_KEYDOWN, vbKeyReturn, 0

---

Wow, you guys are really helpful!
Thanks for code Joey and Megatron.