Solved

Control Panel Programming

Posted on 1998-01-13
3
193 Views
Last Modified: 2010-04-04
I wish to provide a control panel for an application which should be run from the control panel. Could someone give me a base to work from thanx....
0
Comment
Question by:jman112
  • 2
3 Comments
 
LVL 5

Accepted Solution

by:
JimBob091197 earned 100 total points
ID: 1356473
Here is an example for you to work from.  (I used Delphi 3.)

Steps:
1.  From file menu choose "New" then "DLL"

2.  Replace the DLL code with the following:
library TestCpl;

{$R *.res}

uses
  SysUtils, Windows, Messages, Dialogs, Classes,
  CPL;

function CPlApplet(hwndCPl: THandle; uMsg: DWORD; lParam1, lParam2: Longint): Longint; stdcall;
begin
  Result := 0;
  case uMsg of
    CPL_DYNAMIC_RES:;
    CPL_INIT:
      Result := 1;  // 1 = Continue.
    CPL_GETCOUNT:
      Result := 1;
    CPL_INQUIRE:; // See CPL_NEWINQUIRE.
    CPL_SELECT:;
    CPL_DBLCLK, CPL_STARTWPARMS:
      // Pop up your dialog here...
      ShowMessage('Applet #' + IntToStr(lParam1) + ' selected');
    CPL_STOP:;    // Control Panel is preparing to exit.
    CPL_EXIT:;    // Control Panel is now exiting.
    CPL_NEWINQUIRE:
      begin
        with PNewCPLInfo(lParam2)^ do
          begin
            dwSize := SizeOf(TNewCPLInfo);
            hIcon := 0; // Use DLL's main icon.  Make sure to include {$R *.res} above!!
            StrPCopy(@szName, 'Test');
            StrPCopy(@szInfo, 'This is a test Control Panel applet');
          end;
        Result := 1;    // Don't call CPL_INQUIRE.
      end;
    CPL_SETUP:;   // Internal. Used during system installation.
  end;
end;

exports
  CPlApplet;

begin
end.


3.  Compile the DLL, rename TestCpl.dll to TestCpl.cpl, and copy it to C:\Windows\System\.

4.  Now when you go into Control Panel, you should see an entry called "Test" with your DLL's main icon.  You can change the icon by choosing Project|Options on Delphi's menu (same as a normal app).


Regards,
JB
0
 
LVL 5

Expert Comment

by:JimBob091197
ID: 1356474
P.S.  For more info on the Applet messages, see CPL.pas in Delphi's Source\Rtl\Win directory.
0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1356475
0

Featured Post

ScreenConnect 6.0 Free Trial

At ScreenConnect, partner feedback doesn't fall on deaf ears. We collected partner suggestions off of their virtual wish list and transformed them into one game-changing release: ScreenConnect 6.0. Explore all of the extras and enhancements for yourself!

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
delphi prevent click fast 2 216
error 1.1 400 Bad request idhttp delphi 18 87
TEMBEDDEDWB how can i change its user agent ? 8 58
Dynamically Created Query 3 55
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

770 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