Announcement

**Lance Edmonds** · 20 Sep 2001, 07:35 PM

It's fairly simple to arrange it so that you can stop the program using the tray example code.
(Much better and cleaner than trying to kill the process with Task Manager).

Anyway, I quickly modified the tray code to use a thread which then signals the main code to
close, using a global variable as the signal bearer.

This should get you started... significant sections are in bold.

Code:

'------------------------------------------------------------------------------
'
'  System Tray Example for PB/DLL 6.0.
'  Copyright (c) 1999 PowerBASIC, Inc.
'
'  Shows how to create and change an icon in the Windows system tray.
'
'------------------------------------------------------------------------------

#COMPILE EXE
#RESOURCE "TRAY.PBR"
#INCLUDE "WIN32API.INC"

%WM_TRAYICON = %WM_USER + 400

GLOBAL hInst AS LONG

GLOBAL DoStop&
FUNCTION PBMAIN
    hInst = GetModuleHandle(BYVAL 0&)
    
    THREAD CREATE MyTray(0) TO tResult&
    THREAD CLOSE tResult& TO tResult&
    
    WHILE ISFALSE DoStop&
        '... main computational code goes here
    WEND
END FUNCTION
 
FUNCTION MyTray(BYVAL x AS LONG) AS LONG
  DialogBox hInst, BYVAL 100&, %HWND_DESKTOP, CODEPTR(DialogProc)
END FUNCTION
    
 
FUNCTION DialogProc(BYVAL hDlg AS LONG, BYVAL wMsg AS LONG, BYVAL wParam AS LONG, BYVAL lParam AS LONG) AS LONG

  STATIC hMenu AS LONG
  STATIC ti    AS NOTIFYICONDATA
  STATIC p     AS POINTAPI

  SELECT CASE wMsg

    CASE %WM_INITDIALOG
      ' Get Menu Handle
      hMenu = GetSubMenu(LoadMenu(hInst, "POPUPMENU"), 0)

      ' Add tray icon
      ti.cbSize           = SIZEOF(ti)
      ti.hWnd             = hDlg
      ti.uID              = hInst
      ti.uFlags           = %NIF_ICON OR %NIF_MESSAGE OR %NIF_TIP
      ti.uCallbackMessage = %WM_TRAYICON
      ti.hIcon            = LoadIcon(hInst, "FACE1")
      ti.szTip            = "Task Tray Example"
      Shell_NotifyIcon %NIM_ADD, ti
      DestroyIcon ti.hIcon

      FUNCTION = 1

    CASE %WM_TRAYICON

      SELECT CASE LOWRD(lParam)

        ' Left button press
        CASE %WM_LBUTTONDOWN
          IF IsWindowVisible(hDlg) = %FALSE THEN
            ShowWindow hDlg, %SW_SHOW
          END IF

        ' Right button press
        CASE %WM_RBUTTONDOWN
          IF IsWindowVisible(hDlg) = %FALSE THEN
            SetForegroundWindow hDlg
            GetCursorPos p
            TrackPopupMenu hMenu, 0, p.x, p.y, 0, hDlg, BYVAL %NULL
            Postmessage hDlg, %WM_NULL, 0, 0
          END IF

      END SELECT

    CASE %WM_DESTROY
      ' ** Remove the tray icon if the application is closed
      Shell_NotifyIcon %NIM_DELETE, ti

    CASE %WM_COMMAND
      SELECT CASE LOWRD(wParam)

        CASE 101, 102, 103, 104, 105
           ' Change tray icon
           ti.hIcon            = LoadIcon(hInst, "FACE" & FORMAT$(LOWRD(wParam) - 100) )
           Shell_NotifyIcon %NIM_MODIFY, ti
           DestroyIcon ti.hIcon

        CASE %IDOK
          ' Display the about box
          DialogBox hInst, BYVAL 101&, %HWND_DESKTOP, CODEPTR(AboutProc)

        CASE %IDCANCEL
          ' Make sure they want to exit
          IF MessageBox(hDlg,"Close Tray Example and remove its icon from the task tray?" , "Tray Example", %MB_ICONEXCLAMATION OR %MB_OKCANCEL) = %IDOK THEN
            EndDialog hDlg, 0
            DoStop& = -1 ' signal the main code
            FUNCTION = 1
          END IF

      END SELECT

    CASE %WM_SYSCOMMAND

      ' If either the minimize or close buttons are pressed, hide the
      ' window so it doesn't appear in the task bar.

      SELECT CASE LOWRD(wParam)

        CASE %SC_MINIMIZE
          ShowWindow hDlg, %SW_HIDE
          FUNCTION = 1
          EXIT FUNCTION

        CASE %SC_CLOSE
          ShowWindow hDlg, %SW_HIDE
          FUNCTION = 1
          EXIT FUNCTION

      END SELECT

  END SELECT

END FUNCTION
 
FUNCTION AboutProc(BYVAL hDlg AS LONG, BYVAL wMsg AS LONG, BYVAL wParam AS LONG, BYVAL lParam AS LONG) AS LONG

  SELECT CASE wMsg

    CASE %WM_INITDIALOG

      FUNCTION = 1

    CASE %WM_COMMAND

      IF LOWRD(wParam) = %IDOK THEN
        EndDialog hDlg, 0
        FUNCTION = 1
      END IF

  END SELECT

END FUNCTION

------------------
Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

**Larry Hatch** · 20 Sep 2001, 08:01 PM

Lance,

Thanks for the fast response.

I added a open file, write to file sleep where you have
add code here.

And when I kill the ICON from the tray, it does not kill the
write and sleep routine? Was it supposed to?

I am still tring to figure out how to kill the 5 icon pick thing
too with no luck, but I know RC and RBRES now Slow but sure..

------------------

**Lance Edmonds** · 20 Sep 2001, 08:20 PM

The concept is that your code needs to check the value of DoStop& periodically, and when it becomes non-zero, exit PBMAIN.

------------------
Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

**Larry Hatch** · 20 Sep 2001, 08:27 PM

Got that part, I have not moved real code. Tring to get
rid of the pick the face?.ico part now. I think I can get the
code moved in OK though. ALSO, it did start dieing, not sure
why it did not the first time, maybe be not checking the
DoStop.

I will watch that variable and die one it.

Guess I need to understand the RC file now.

I removed 100 from it, and left 101 and 102 and that really messed it
up. Thinking it would skip the first dialog.

------------------

**Clay Clear** · 20 Sep 2001, 09:32 PM

Larry,

I use system tray programs that I write *EXTENSIVELY*. If you wish,
send me your e-mail address to my e-mail address listed below, and
I will attach one of my BAS programs so you can see how to do it.
My programs, at least some of them, have no need to use RC's - they
use the MENU statements to generate the popup menu's before placing
the icon in the tray. Also, none of my programs require a startup
dialog, as does DialogBox when used as it is in the TRAY sample.
I've been using my technique for a LONG time, and I pretty much
have it down.

Regards,

CORRECTION: *ALL* of my system tray programs require an RC, but the
MAJORITY of them only need it to embed the icon that the tray program
uses. MOST of the programs create their own menu's with the
MENU statements.

------------------
Clay C. Clear

Clay Clear's Software
mailto:[email protected][email protected]</A>

[This message has been edited by Clay Clear (edited September 20, 2001).]

**Clay Clear** · 20 Sep 2001, 10:02 PM

Larry,

On second thought, I think you should use Lance's code. While
I've thought of a possible way to do what you need, Lance is a much
more accomplished programmer than I, and I think his idea of using
a thread is the best idea ('though I've never, ever used threads,
myself ).

As far as your RC, I'd say, for a need such as yours, you should
only include the icon itself in your RC, and build your menu's
before putting the icon in the tray. Build your menu's with
PB/DLL's builtin MENU statements. That's what I do for my programs
that don't have "deep" menu requirements. If you think that your
program requires it, an RC is the best way (*I* think) for the more
complex menu structures. In fact, for ALL of the programs I've
written that are for my own, private use, I use a custom DLL that
is nothing but a resource DLL, and use LoadLibrary to load the
applicable icons and menu's. If you need help with such a thing,
or anything like it, feel free to e-mail me. Keep in mind that
I have NEVER used threads in my programs, and couldn't do much for
you in that respect, until I did some research on the matter. For
that, you should ask Lance for clarifications.

Keep in mind that a system tray program does NOT necessarily
need a startup dialog. As stated in my first posting, none of my
programs use/require them. Lance (and others) can give you some
of the more "conventional" methods for doing this; my methods
are more "iconoclastic." (but, they work just FINE! )

Regards,

------------------
Clay C. Clear

Clay Clear's Software
mailto:[email protected][email protected]</A>

**Peter P Stephensen** · 21 Sep 2001, 01:16 AM

larry,

have a look at http://www.powerbasic.com/support/pb...ad.php?t=15267

regards
peter

------------------
[email protected]

**Gregery D Engle** · 21 Sep 2001, 04:26 AM

I wrote these awhile ago. Haven't fully tested it but these
should make using System Tray Icons easier

Code:

SUB DESTROY_SYSTRAY(hWnd&)
        DIM nfIconData AS NOTIFYICONDATA
        DIM szIcon AS ASCIIZ * 255
        szIcon = Icon$
        hInstance& = GETMODULEHANDLE(BYVAL %NULL)
        nfIconData.hwnd = hWnd&
        nfIconData.uID = hInstance&
        SHELL_NOTIFYICON %NIM_DELETE, nfIconData
END SUB

SUB SHOW_SYSTRAY(hWnd&, CallBackMSG&, Icon$, ToolTip$)
        DIM nfIconData AS NOTIFYICONDATA
        DIM szIcon AS ASCIIZ * 255
        szIcon = Icon$
        hInstance& = GETMODULEHANDLE(BYVAL %NULL)
        nfIconData.hwnd = hWnd&
        nfIconData.uID = hInstance&
        nfIconData.uFlags = %NIF_ICON OR %NIF_MESSAGE OR %NIF_TIP
        nfIconData.uCallbackMessage = CallBackMSG&
        nfIconData.hIcon = LOADICON(hInstance&, szIcon)
        nfIconData.szTip = ToolTip$
        nfIconData.cbSize = SIZEOF(nfIconData)
        SHELL_NOTIFYICON %NIM_ADD, nfIconData
        DestroyIcon nfIconData.hIcon
END SUB

Here's how to use it

Code:

Call this in PBMAIN:

SHOW_SYSTRAY hWnd&, %WM_USER + 1000, "#101", "Test"        
                                        |----- This is the icon identifier 
                                               Resource

in callback function place this stuff
CASE %WM_USER + 1000
             SELECT CASE LOWRD(lParam&)
                 CASE %WM_LBUTTONDOWN
                     MSGBOX "Left"
                 CASE %WM_RBUTTONDOWN
                     MSGBOX "Right"
              END SELECT     
CASE %WM_DESTROY
      DESTROY_SYSTRAY hWnd&   'you can use CBHNDL too
..
..

Hope this helps everyone, I might posted this in the Source Code
forum after I test everything again.

------------------
-Greg

[This message has been edited by Gregery D Engle (edited September 21, 2001).]

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I need to terminate a running program from the tray

I need to terminate a running program from the tray

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