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  #1  
Old June 26th, 2005, 11:46 PM
r3gan r3gan is offline
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Arrow VB.Net : Send "OK" windows message to a message box window

Hello,
I need some help in VB.Net! I'm trying to send an "ok" window message to a message box window (in a different application) and I can't seem to get it working. Here is the general idea of my application:
- my program will create a new process running for some external application
- when this application starts, however, the user is prompted with a message box
- I need my program to send this message box window an "Ok" message (to simulate that the user clicked the [OK] button

I have tried using the user32.dll API functions, but I am having no luck with them. Specifically, I've tried FindWindow with SendMessage... I also tried EnumWindows and EnumChildWindows. Can anyone point me to an example such as this? Some of the examples I found were for Visual Basic only, and not .net.

Thanks!

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  #2  
Old July 13th, 2005, 04:51 PM
r3gan r3gan is offline
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No one's got any ideas for this one?

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  #3  
Old October 18th, 2007, 05:53 AM
davidcutting davidcutting is offline
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OK, Enter Key Stroke

I also have the same problem:

I am creating a scheduled service application.
One of the applications returns a message box when completed.
I need to simulate a user clicking ok or pressing enter or space to get rid of the message box
can anyone help us??????????????????????????

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  #4  
Old January 24th, 2008, 12:28 PM
esmithz esmithz is offline
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Try .net remoting

Hello friend

You are in luck. I can help you on this one.


I am assuming you are writing code for both applications.
If not then remoting will not work.

Back to remoting...

Look into using ".net remoting" to send a message to
an external process.

This process can be running on the
same computer or on different machines in the office or
across a wide area link. There is a book called
"Advanced .net Remoting" by Apress which can explain this
topic in great detail. It gives excellent walkthroughs.

The examples use http://localhost/.... to run samples on the
same computer.

You can use tcp://(ip address)/.... for inter office

Imagine having an in office chat application that allows
users on various machines to send text messages between
each other. Remoting makes this possible.

Remoting is done using the
System.Runtime.Remoting library
It uses channels to send info back and forth.

Good Luck

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  #5  
Old January 3rd, 2009, 11:41 AM
labus007 labus007 is offline
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Finally :p :p

I know your question is very old, but nobody answer as yet


Code for VB 6, but it is easy transfer to net.

Option Explicit
Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Public Const NV_CLOSEMSGBOX As Long = &H5000&



Private Sub Command_Click()

'Najdu okno
Dim NajdiOkno As Long
Dim Messages As Long

'Here you have to change name of window
NajdiOkno = FindWindow(vbNullString, "Microsoft Visual Basic")
If NajdiOkno <> 0 Then
Messages = PostMessage(NajdiOkno, &H10, 0&, 0&)
If Messages = 0 Then
MsgBox "error"
End If
End If



End Sub

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  #6  
Old March 19th, 2011, 09:29 AM
GoriopMossorick GoriopMossorick is offline
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Old March 19th, 2011, 11:59 PM
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