?
Solved

How do I send/post messages?

Posted on 1998-10-31
4
Medium Priority
?
148 Views
Last Modified: 2010-08-05
Hello,
I have a main form with 3 panels. I would like one panel to send a new WM message to the other panels.
I found some help about adding event handlers but I don't know how to actually send the message (after filling the lParam and wParam parametrs).
An example would be very helpful.

Thanks,
Tommy
0
Comment
Question by:tommyq
  • 2
  • 2
4 Comments
 

Author Comment

by:tommyq
ID: 1345175
Edited text of question
0
 
LVL 8

Accepted Solution

by:
ZifNab earned 200 total points
ID: 1345176
Hi tommyq,

you can use PostMessage or SendMessage.

SendMessage waits until message is processed, postmessage puts the message in the qeue and returns.

With Objects you can also use Perform. (like sendmessage, it waits until message is processed) :

RetVal := ObjectName.Perform(MessageID, wParam, lParam);

or

 SendMessage(hWnd, MessageID, wParam, lParam);

 PostMessage(hWnd, MessageID, wParam, lParam);

Regards, Zif.
0
 

Author Comment

by:tommyq
ID: 1345177
Thanks for your prompt reply, ZifNab.

How do I get the hWnd of a certain control?


0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1345178
Hi tommyq,

eg. Form1.Handle

Regards, Zif.
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
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…
To export Lotus Notes to Outlook PST or Exchange and Domino Server files to Exchange Server or PST files with ease, go for Kernel for Lotus Notes to Outlook conversion tool. Through the video, you can watch the conversion process. A common user with…
Did you know PowerShell can save you time with SaaS platforms? Simply leverage RESTfulAPIs to build your own PowerShell modules. These will kill repetitive tickets and tabs, using the command Invoke-RestMethod. Tune into this webinar to learn how…

590 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