Solved

Getting all text from childwindows through EnumChildWindows

Posted on 2008-06-16
9
1,793 Views
Last Modified: 2012-05-05
Hi. (I AM USING VB.net, visual Studio 2005)
I need to extract the text on buttons, on labels, in textboxes etc inside another window ( in my case its from a provider och financialdata, where i want to read numbers ) . How can i locate ALL childwindows inside the other application and extract that text. I have tried with making something out of a combination of  
Declare Auto Function FindWindowEx Lib  "user32"
and
 Declare Function EnumChildWindows Lib "user32"
Basically I wan't ALL childwindows inside the MAIN Application.

Some info is here, but i don't exactly understand it.
http://www.xtremevbtalk.com/archive/index.php/t-130418.html

Say for example that i have the hWnd of the main window, and i wan't EVERYTHING that is a childwindow of hWnd, and also the "childwindows of the childwindow"
Thanks.

0
Comment
Question by:soriega
  • 5
  • 4
9 Comments
 

Author Comment

by:soriega
ID: 21801113
Urgent help needed.. (Thanks)
0
 
LVL 10

Expert Comment

by:Clif
ID: 21804548
Not entirely sure of this will help, but I did find this which seems to fit what you're looking for...

http://forums.devshed.com/net-development-87/vb-net-getting-url-from-ie-instances-390854.html
0
 

Author Comment

by:soriega
ID: 21807128
Thanks, i will do some testing and se if it works
0
Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

 

Author Comment

by:soriega
ID: 21807942
As far as i Can see, this solution ( in the link ) returns only the title of windows. In the example it returns the title of each Iexplorer window. What i was looking for was rather ALL the childwindows that are UNDER the main window. For example. If i have a Form1 with a button, named "button1"  and text button1.text="HELP" and a label with label1.text ="MYTEST", then what i want is a script that looks through Form1 and returns all the controls and labels, and the text of the childcontrols
Thanks
0
 
LVL 10

Expert Comment

by:Clif
ID: 21811929
To get the "text" of controls, you should use "getWindowText()".  You won't be able to get the values from labels, though.  Labels are not controls in the strictest sense of the word.
0
 

Author Comment

by:soriega
ID: 21811967
OK, is there any way of reading values from say a datagrid in another application. I basically wan't to read numbers and try to execute trades at an application from a online broker. It seems like its some sort of datagridview or labels or textboxes or similar
0
 
LVL 10

Accepted Solution

by:
Clif earned 500 total points
ID: 21812032
Sorry, I can't help you there.  I really have no idea how a grid control is created or maintained (internally).

If the control has true windows (ie, has an hWnd), then you should be able to read the control's text.  Unfortunately not everything in Windows is a window, and not every text you see it a text object.  Some of the text you see is, for lack of a better term, images on the control.  This is what a label control basically is.  It's actually an image of the text and not the text itself (once the application is running).
0
 

Author Closing Comment

by:soriega
ID: 31467812
Thanks for the explanation, i was prepared that it might not work. I will try to find some better (...more expensive) provider of stockprices
0
 
LVL 10

Expert Comment

by:Clif
ID: 21812350
Will your application have web access?  If so, you can make an http call to get a page which contains the data you need and can easily scrape it from there.

Most websites have a fifteen to twenty minute delay on stock prices, though, unless you buy a subscription.

Good luck.
0

Featured Post

Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

Question has a verified solution.

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

Most everyone who has done any programming in VB6 knows that you can do something in code like Debug.Print MyVar and that when the program runs from the IDE, the value of MyVar will be displayed in the Immediate Window. Less well known is Debug.Asse…
When designing a form there are several BorderStyles to choose from, all of which can be classified as either 'Fixed' or 'Sizable' and I'd guess that 'Fixed Single' or one of the other fixed types is the most popular choice. I assume it's the most p…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…

813 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

13 Experts available now in Live!

Get 1:1 Help Now