Click a button in another program!!

Posted on 2000-02-19
Last Modified: 2011-09-20
I've got a working exe that runs ok. What i want to do is to click a button in the exe via my own program. How do i do that ?
Question by:drnadeem
LVL 20

Expert Comment

ID: 2537793
Find the button window handle (e.g. with FindWindow(Ex)), then use PostMessage(WM_KEYDOWN, ...) and PostMessage(WM_KEYUP, ...) to simulate key presses.

Regards, Madshi.

Expert Comment

ID: 2538180
look at the source on this component how to do it exactly (or just use the component) :-) 

Regards, Zif

Author Comment

ID: 2539201
Wasn't able to download/visit to your page by double clicking it.

Accepted Solution

ahalya earned 30 total points
ID: 2563800
Here is an example form an answer I preovided earlier.  This code starts the "Network" control panel applet and clicks the "Add" button.

uses ShellAPI:

var hIns : THandle;

hIns := ShellExecute(0, nil,
            'shell32.dll,Control_RunDLL netcpl.cpl',
WaitForSingleObject(hIns, 10 *1000);

    h := FindWindow('#32770', 'Network');
    if h = 0 then sleep(10);
until h <> 0;

DlgID := 209; //for Add button
PostMessage(h, wm_Command, DlgID, MakeLong(h, BN_Clicked));


You can write a similar routine. You'll need to know the className & WindowTitle of the parent application, and the button. In pseudo-code your procedure will look like.

var h, hc : HWND;
      DlgID : integer;

h := FindWindow('ClassName', 'WindowTitle');
hc := FindWindowEx(h, 0, 'TButton', 'Button Title');
DlgID := GetDlgCtrlID(hc);
PostMessage(h, wm_Command, DlgID, MakeLong(h, BN_Clicked));

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Delphi XE2 application frozen on Windows 10 10 277
Machine not responding during CopyFile() 3 89
Delphi XE10, MySQL Query 4 127
Delphi: how to implement a User Shortcut mapper? 1 95
Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…

895 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now