Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Disabling the windows close icon

Posted on 1998-04-15
1
Medium Priority
?
164 Views
Last Modified: 2010-04-06
Can anyone tell me how to disable the Windows close icon i.e. the X at the top right of a Window.  I also need to enable it as well.

Any help would be appreciated.

David.
0
Comment
Question by:dl090597
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 1

Accepted Solution

by:
extreme earned 40 total points
ID: 1361554
This function does what you want, it's in the OnClick event of a button in a form:

procedure TForm1.Button1Click(Sender: TObject);
var
  h : THandle;
  Id : word;
  i : integer;
  Info : TMenuItemInfo;
begin
  h := GetSystemMenu(Handle, False);
  for i := 0 to GetMenuItemCount (h) - 1 do
    begin
      Id := GetMenuItemId (h, i);
      if Id = SC_CLOSE
        then
        begin
          Info.cbSize := sizeof (Info);
          Info.fMask := MIIM_STATE;
          if GetMenuItemInfo (h, Id, false, Info)
            then if Info.fState = MFS_ENABLED
              then EnableMenuItem (h, Id, MF_DISABLED or MF_GRAYED)
              else EnableMenuItem (h, Id, MF_ENABLED)
        end;
    end;
end;

Every time you press the button the function changes the state of the close menu item to the opposite depending on the current state.

Hope this serves you.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

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…
Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
This course is ideal for IT System Administrators working with VMware vSphere and its associated products in their company infrastructure. This course teaches you how to install and maintain this virtualization technology to store data, prevent vuln…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Suggested Courses

596 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