Announcement

**Lance Edmonds** · 25 Mar 2000, 03:44 PM

There have been discussions on this type of problem before on this BBS. Essentially, the solution involves intercepting keystroke messages for your controls and the dialog/window itself - this is usually accomplished by subclassing and/or intercepting keystroke messages in the applications message pump loop.

Note that such keystroke interception is neither straight forward nor within the bounds of conventional GUI interface design techniques. However, if you peruse the Source Code forum, you should find a few examples to get you going.

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

**Jeffrey Morris** · 26 Mar 2000, 01:25 PM

Lance, I tried to add the "&" character to front of a character in the string to be printed on command buttons so that I can press ALT-character but some ALT-numbers such as ALT-1 and ALT-2 don't work. How can I change the background color of option buttons? How can I write a function that is similar to Form_KeyPress in Visual BASIC so that I can press keys instead of using the mouse to run the program? The code would look like this:

Code:

callback function nextstation as long
  if cbmsg=%wm_char and cbwparam=%vk_return then
    buttonpressed=1
    incr stationnumber
    call selectstation
  end if
end function

I didn't try this because I am not sure if it will work. Jeffrey.

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**Lance Edmonds** · 26 Mar 2000, 10:57 PM

there are a range of ways around this problem - such as using a keyboard hook, or use a modeless dialog and handle the message loop yourself where you can trap wm_keydown and wm_keyup messages. such an example can be seen at http://www.powerbasic.com/support/pb...ad.php?t=12662

i quickly wrote the following code to text your comment about the "&1" accelerator problem, and it give interesting results - not only does it work, but (at least under windows 2000) just pressing 1, 2, 3, 4, or 5 triggers the appropriate button, in addition to the usual alt+<btn> combination.

<font face="courier new, courier" size="3"><pre>
#compile exe
#include "ddt.inc"

callback function dlgcallback
if cbmsg = %wm_command then _
msgbox "you pressed button " & str$(cbctl)
end function

function pbmain () as long
local hdlg as long
local result as long

dialog new 0, "test", 1, 1, 60, 140, %ds_center or _
%ws_caption or %ws_sysmenu, 0 to hdlg
for x& = 1 to 5
control add button, hdlg, 100 + x&, _
"button &" + chr$(48 + x&), 10, 20 * x&,40,14
next x&
dialog show modal hdlg, call dlgcallback
end function
[/CODE]

to find out how to "recolor" controls, take a look at the smtp.bas example in your samples\tcp folder... there is an update to this file on the ftp site too - ftp.powerbasic.com/pub/pbdll32/inet

------------------
lance
powerbasic support
mailto:[email protected][email protected]</a>

**Jeffrey Morris** · 27 Mar 2000, 01:48 AM

Lance, Thank you very much for your code and the code in the message that you referred me to. When I run your code and press a key, I hear the bell. I will try the code in the message in my program. Jeffrey.

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

**Lance Edmonds** · 27 Mar 2000, 01:57 AM

Does ALT+1 and ALT+2 work in my code snippet?

Interestingly, it seems that Windows 2000 handles non-ALT keystrokes slightly differently than Win95/98. Can anyone else verify this difference in dialog box behavior?

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

**Semen Matusovski** · 27 Mar 2000, 02:44 AM

About Win2000: I see the same - if button has focus and another buttons have "hot" keys, it's not necessary to press Alt.

But there is also another interesting moment.
If a window has a menu and to press single Alt.

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

**Jeffrey Morris** · 27 Mar 2000, 01:35 PM

Lance, ALT-1, ALT-2, etc work in your code snippet on my computer running Windows 98 SE. I tried to use some of the code in the message that you referred me to but it didn't work in my program. I will try IF/THEN tests to see if they work. When I press a key, I hear the bell. Here is the code:

Code:

#compile exe
#register none
#dim all
#include "win32api.inc"
global hdlg as long
global hfont as long
global buttonpressed as long
global stationnumber as long
global string01 as string
global string02 as string
global string03 as string
global string04 as string
global string05 as string
global string06 as string
global string07 as string
global string08 as string
global terminal as long
global stopprogram as long
sub selectstation
  select case stationnumber
    case 1
      call textbox01("Stop at Beach 67th Street")
    case 2
      call textbox01("Stop at Beach 60th Street")
    case 3
      call textbox01("Stop at Beach 44th Street")
    case 4
      call textbox01("Stop at Beach 36th Street")
    case 5
      call textbox01("Stop at Beach 25th Street")
    case 6
      call textbox01("Change Direction at Far Rockaway")
    case 7
      call textbox01("Stop at Beach 25th Street")
    case 8
      call textbox01("Stop at Beach 36th Street")
    case 9
      call textbox01("Stop at Beach 44th Street")
    case 10
      call textbox01("Stop at Beach 60th Street")
    case 11
      call textbox01("Stop at Beach 67th Street")
      call textbox02("2 - To Broad Channel")
      call textbox03("3 - To Beach 90th Street")
      call command02
      if buttonpressed=2 then
        call cleartextboxes
        call command01
        stationnumber=18
      end if
      if buttonpressed=3 then
        call cleartextboxes
        call command01
        stationnumber=11
      end if
    case 12
      call textbox01("Stop at Beach 90th Street")
    case 13
      call textbox01("Stop at Beach 98th Street")
    case 14
      call textbox01("Stop at Beach 105th Street")
    case 15
      call textbox01("Change Direction at Rockaway Park")
    case 16
      call textbox01("Stop at Beach 105th Street")
    case 17
      call textbox01("Stop at Beach 98th Street")
    case 18
      call textbox01("Stop at Beach 90th Street")
      call textbox02("2 - To Broad Channel")
      call textbox03("3 - To Beach 67th Street")
      call command02
      if buttonpressed=2 then
        call cleartextboxes
        call command01
        stationnumber=18
      end if
      if buttonpressed=3 then
        call cleartextboxes
        call command01
        stationnumber=0
      end if
    case 19
      call textbox01("Stop at Broad Channel")
  end select
end sub
sub command01
  control enable hdlg,101
  control disable hdlg,102
  control disable hdlg,103
  control disable hdlg,104
  control disable hdlg,105
  control disable hdlg,106
  control disable hdlg,107
end sub
sub command02
  control disable hdlg,101
  control enable hdlg,102
  control enable hdlg,103
  control disable hdlg,104
  control disable hdlg,105
  control disable hdlg,106
  control disable hdlg,107
end sub
sub command03
  control disable hdlg,101
  control enable hdlg,102
  control enable hdlg,103
  control enable hdlg,104
  control disable hdlg,105
  control disable hdlg,106
  control disable hdlg,107
end sub
sub command04
  control disable hdlg,101
  control enable hdlg,102
  control enable hdlg,103
  control enable hdlg,104
  control enable hdlg,105
  control disable hdlg,106
  control disable hdlg,107
end sub
sub command05
  control disable hdlg,101
  control enable hdlg,102
  control enable hdlg,103
  control enable hdlg,104
  control enable hdlg,105
  control enable hdlg,106
  control disable hdlg,107
end sub
sub command06
  control disable hdlg,101
  control enable hdlg,102
  control enable hdlg,103
  control enable hdlg,104
  control enable hdlg,105
  control enable hdlg,106
  control enable hdlg,107
end sub
sub textbox01(string01 as string)
  control set text hdlg,112,string01
end sub
sub textbox02(string02 as string)
  control set text hdlg,113,string02
end sub
sub textbox03(string03 as string)
  control set text hdlg,114,string03
end sub
sub textbox04(string04 as string)
  control set text hdlg,115,string04
end sub
sub textbox05(string05 as string)
  control set text hdlg,116,string05
end sub
sub textbox06(string06 as string)
  control set text hdlg,117,string06
end sub
sub textbox07(string07 as string)
  control set text hdlg,118,string07
end sub
sub cleartextboxes
  control set text hdlg,113,""
  control set text hdlg,114,""
  control set text hdlg,115,""
  control set text hdlg,116,""
  control set text hdlg,117,""
  control set text hdlg,118,""
end sub
callback function nextstation as long
  buttonpressed=1
  incr stationnumber
  call selectstation
end function
callback function route01 as long
  buttonpressed=2
  call selectstation
end function
callback function route02 as long
  buttonpressed=3
  call selectstation
end function
callback function route03 as long
  buttonpressed=4
  call selectstation
end function
callback function route04 as long
  buttonpressed=5
  call selectstation
end function
callback function route05 as long
  buttonpressed=6
  call selectstation
end function
callback function route06 as long
  buttonpressed=7
  call selectstation
end function
callback function expressstops as long
  string08="Skip "
end function
callback function localstops as long
  string08="Stop at "
end function
callback function hdlgcb
   select case cbmsg
      case %wm_destroy: stopprogram = 1
   end select
end function
function pbmain() as long
  local msg  as tagmsg
  dialog new 0,"NYCTA Subway Program",0,0,500,100,%ws_sysmenu + %ws_maximize to hdlg
  control add button,hdlg,101,"Next Station",10,15,50,20, call nextstation
  control add button,hdlg,102,"Route 1",10,55,50,20,call route01
  control add button,hdlg,103,"Route 2",10,95,50,20,call route02
  control add button,hdlg,104,"Route 3",10,135,50,20,call route03
  control add button,hdlg,105,"Route 4",10,175,50,20,call route04
  control add button,hdlg,106,"Route 5",10,215,50,20,call route05
  control add button,hdlg,107,"Route 6",10,255,50,20,call route06
  control add button,hdlg,109,"Express stops",75,295,50,20,call expressstops
  control add button,hdlg,110,"Local stops",140,295,50,20,call localstops
  control add textbox,hdlg,112,"",75,10,440,30
  control add textbox,hdlg,113,"",75,50,440,30
  control add textbox,hdlg,114,"",75,90,440,30
  control add textbox,hdlg,115,"",75,130,440,30
  control add textbox,hdlg,116,"",75,170,440,30
  control add textbox,hdlg,117,"",75,210,440,30
  control add textbox,hdlg,118,"",75,250,440,30
  hfont=createfont(40,16,0,0,0,0,0,0,0,0,0,0,0,"arial")
  control send hdlg,112,%wm_setfont,hfont,%true
  control send hdlg,113,%wm_setfont,hfont,%true
  control send hdlg,114,%wm_setfont,hfont,%true
  control send hdlg, 115,%wm_setfont,hfont,%true
  control send hdlg, 116,%wm_setfont,hfont,%true
  control send hdlg, 117,%wm_setfont,hfont,%true
  control send hdlg, 118,%wm_setfont,hfont,%true
  dialog show modeless hdlg call hdlgcb
  stationnumber=6
  call selectstation
  while getmessage(msg, %null, 0, 0)
    select case msg.message
      case %wm_char:
        select case msg.wparam
          case 49:
            buttonpressed=1
            incr stationnumber
            call selectstation
          case 50:
            msgbox "2 key pressed"
            buttonpressed=2
            call selectstation
          case 51:
            buttonpressed=3
            call selectstation
          case 52:
            buttonpressed=4
            call selectstation
          case 53:
            buttonpressed=5
            call selectstation
          case 69:
            string08="Skip "
          case 108:
            string08="Stop at "
        end select
    end select
    if isdialogmessage(hdlg, msg) = %false then
      translatemessage msg
      dispatchmessage msg
    end if
    if stopprogram <> 0 then exit do
  loop
end function

The while getmessage loop doesn't work properly. I press "1" key and it worked but I try to press the other keys and nothing happens except for the bell. How can I get rid of the bell? Jeffrey.

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

Lance, The IF/THEN tests didn't work. Jeffrey.

[This message has been edited by Jeffrey Morris (edited March 28, 2000).]

**Semen Matusovski** · 28 Mar 2000, 01:20 AM

Jeffrey --
First, what you should do - to reduce code, al least, at 5 times.
Fortunatelly, there are such statements as For ... Next

For example

control add textbox,hdlg,112,"",75,10,440,30
control add textbox,hdlg,113,"",75,50,440,30
control add textbox,hdlg,114,"",75,90,440,30
control add textbox,hdlg,115,"",75,130,440,30
control add textbox,hdlg,116,"",75,170,440,30
control add textbox,hdlg,117,"",75,210,440,30
control add textbox,hdlg,118,"",75,250,440,30
hfont=createfont(40,16,0,0,0,0,0,0,0,0,0,0,0,"arial")
control send hdlg,112,%wm_setfont,hfont,%true
control send hdlg,113,%wm_setfont,hfont,%true
control send hdlg,114,%wm_setfont,hfont,%true
control send hdlg, 115,%wm_setfont,hfont,%true
control send hdlg, 116,%wm_setfont,hfont,%true
control send hdlg, 117,%wm_setfont,hfont,%true
control send hdlg, 118,%wm_setfont,hfont,%true

Could be converted to

Code:

  Local i As Long
  hfont = CreateFont (40, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,"arial")
   For i = 0 To 6
      Control Add TextBox,hdlg, 112 + i, "", 75, i * 40 + 10, 440, 30
      Control Send hdlg, 112 + i, %WM_SETFONT, hfont, %True
   Next

It's much readable and clear.
Also, don't forget about DeleteObject hFont at the end of program.

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

**Lance Edmonds** · 28 Mar 2000, 02:29 AM

Thats for that suggestion Semen. Jeffrey, can you also post your code using the [ CODE ] and [ /CODE ] "uub" codes so that formatting & indenting is preserved in your code posts. If we can read it we are more likely to be able to help.

Also, if you can use Semen's suggestion to reduce the code volume - and strip down as much of the code at necessary for the purposes of finding a solution to your problem, then it is much easier for people such as myself to isolate the problem.

Thanks!

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

**Jeffrey Morris** · 28 Mar 2000, 01:29 PM

Semen, Thanks for the FOR/NEXT tip. I debugged the program and found out that the subroutines that enable and disable command buttons interferred with the dialog callback subroutine. In Visual BASIC, I would write code like this:

Code:

Private Sub Form_KeyPress(KeyAscii As Integer)
  If Command1(0).Enabled = True And KeyAscii = 49 Then Command1(0).Value = True
  If Command1(1).Enabled = True And KeyAscii = 50 Then Command1(1).Value = True
  If Command1(2).Enabled = True And KeyAscii = 51 Then Command1(2).Value = True
  If Command1(3).Enabled = True And KeyAscii = 52 Then Command1(3).Value = True
  If Command1(4).Enabled = True And KeyAscii = 53 Then Command1(4).Value = True
  If Command1(5).Enabled = True And KeyAscii = 54 Then Command1(5).Value = True
  If Command1(6).Enabled = True And KeyAscii = 55 Then Command1(6).Value = True
  If KeyAscii = 69 Or KeyAscii = 101 Then
    Option1(0).Value = True
    string01 = "Skip "
  End If
  If KeyAscii = 76 Or KeyAscii = 108 Then
    Option1(1).Value = True
    string01 = "Stop at "
  End If
  If KeyAscii = 13 Then Command1(7).Value = True
  If KeyAscii = 27 Then Command1(8).Value = True
  KeyAscii = 0
End Sub

In PB/DLL, there is no function that checks to see if a command button is enabled or disabled. I want to use the GetAsyncKeyState function but it needs to be inside a timer loop but I am confused as to how to write the timer loop. Using PB/DLL to write programs is harder than using Visual BASIC to write programs. Jeffrey.

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

**Jeffrey Morris** · 28 Mar 2000, 01:32 PM

Lance, I debugged the program and found out that the subroutines that enable and disable command buttons interferred with the dialog callback subroutine. In Visual BASIC, I would write code like this:

Code:

Private Sub Form_KeyPress(KeyAscii As Integer)
  If Command1(0).Enabled = True And KeyAscii = 49 Then Command1(0).Value = True
  If Command1(1).Enabled = True And KeyAscii = 50 Then Command1(1).Value = True
  If Command1(2).Enabled = True And KeyAscii = 51 Then Command1(2).Value = True
  If Command1(3).Enabled = True And KeyAscii = 52 Then Command1(3).Value = True
  If Command1(4).Enabled = True And KeyAscii = 53 Then Command1(4).Value = True
  If Command1(5).Enabled = True And KeyAscii = 54 Then Command1(5).Value = True
  If Command1(6).Enabled = True And KeyAscii = 55 Then Command1(6).Value = True
  If KeyAscii = 69 Or KeyAscii = 101 Then
    Option1(0).Value = True
    string01 = "Skip "
  End If
  If KeyAscii = 76 Or KeyAscii = 108 Then
    Option1(1).Value = True
    string01 = "Stop at "
  End If
  If KeyAscii = 13 Then Command1(7).Value = True
  If KeyAscii = 27 Then Command1(8).Value = True
  KeyAscii = 0
End Sub

In PB/DLL, there is no function that checks to see if a command button is enabled or disabled. I want to use the GetAsyncKeyState function but it needs to be inside a timer loop but I am confused as to how to write the timer loop. Using PB/DLL to write programs is harder than using Visual BASIC to write programs. Jeffrey.

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

**Jeffrey Morris** · 29 Mar 2000, 10:30 AM

Lance, I took the POPPAD1.BAS program from the PETZOLD.ZIP file, looked through the big fat book, and edited it so that it displays names of subway stations to stop at or skip when I run my model train. I was able to press keys to go to next station or to choose routes. How can I create push buttons and radio buttons using the CreateWindow function. How can I enable and disable the push buttons? How can I change the color of radio button faces? How can I create two client windows - one that lets me choose terminal stations and one that displays names of subway stations to stop at or skip when I run my model train? The program has six edit boxes that were created using the CreateWindow functions. I didn't use DDT functions. Jeffrey.

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**Lance Edmonds** · 29 Mar 2000, 11:46 PM

Ok.

Petzold's code uses the raw API's to create Windows and controls. This approach is often referred to as "SDK-style coding" (SDK meaning the MS Software Developers Kit). It is the "lowest level" you can use to create GUI interfaces by calling the Windows API's directly.

It is vastly more complex than using DDT and requires a much greater understanding of how Windows itself works. DDT has the advantage of hiding most of the complexities of the low level code overhead that SDK application coding MUST have - DDT does this "grunt" work for you, saving you a lot of work.

To clarify, DDT internally uses the same type of approaches to creating windows as SDK-style coding uses. As a result, you'll find you will hit the same snags with either approach, such as certain things cannot be done during execution of certain callback messages, etc. For example, trying to destroy a button in response to a click on the same button, etc.

These kind of restrictions and rules are imposed by Windows on any GUI application that uses Windows to handle the GUI interface.

The major difference between DDT and SDK-style coding is that DDT uses the Windows dialog box engine, which in turn uses CreateWindow(), etc. Petzold covers this in his book too - once you learn how to create a dialog at the root level, you'll appreciate how DDT can reduce development time significantly!

In summary, there is no easy way to explain all of the techniques you'll need to know for SDK-style coding, especially in a place such as this forum. Afterall, it takes Petzold about 1500 pages to cover these topics at a depth necessary to fully understand the process!

My best advice is for you to buy a copy of Petzold for yourself. Once you learn SDK-style coding, you'll find DDT is a real snap. The other good book is Rector/Newcomer's "Win32 Programming" - the ISBN's are listed in the FAQ forum.

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

**Jeffrey Morris** · 30 Mar 2000, 01:55 AM

Lance, Here is the code so far:

Code:

$compile exe
$dim all
$register none
$include "win32api.inc"
global hwnd02edit01 as long
global hwnd02edit02 as long
global hwnd02edit03 as long
global hwnd02edit04 as long
global hwnd02edit05 as long
global key01 as long
global key02 as long
global key03 as long
global key04 as long
global key05 as long
global szappname as asciiz*9
global stationnumber as long
global buttonpressed as long
global string06 as string
global terminal as long
sub selectstation
  select case stationnumber
    case 1
      call text01("Stop at Beach 67th Street")
    case 2
      call text01("Stop at Beach 60th Street")
    case 3
      call text01("Stop at Beach 44th Street")
    case 4
      call text01("Stop at Beach 36th Street")
    case 5
      call text01("Stop at Beach 25th Street")
    case 6
      call text01("Change Direction at Far Rockaway")
    case 7
      call text01("Stop at Beach 25th Street")
    case 8
      call text01("Stop at Beach 36th Street")
    case 9
      call text01("Stop at Beach 44th Street")
    case 10
      call text01("Stop at Beach 60th Street")
    case 11
      call text01("Stop at Beach 67th Street")
      call text02("2 - To Broad Channel")
      call text03("3 - To Beach 90th Street")
      call command02
      if buttonpressed=2 then
        call cleartext
        call command01
        stationnumber=18
      end if
      if buttonpressed=3 then
        call cleartext
        call command01
        stationnumber=11
      end if
    case 12
      call text01("Stop at Beach 90th Street")
    case 13
      call text01("Stop at Beach 98th Street")
    case 14
      call text01("Stop at Beach 105th Street")
    case 15
      call text01("Change Direction at Rockaway Park")
    case 16
      call text01("Stop at Beach 105th Street")
    case 17
      call text01("Stop at Beach 98th Street")
    case 18
      call text01("Stop at Beach 90th Street")
      call text02("2 - To Broad Channel")
      call text03("3 - To Beach 67th Street")
      call command02
      if buttonpressed=2 then
        call cleartext
        call command01
        stationnumber=18
      end if
      if buttonpressed=3 then
        call cleartext
        call command01
        stationnumber=0
      end if
    case 19
      call text01("Stop at Broad Channel")
  end select
end sub
sub text01(string01 as asciiz)
  call setwindowtext(hwnd02edit01,string01+chr$(0))
end sub
sub text02(string02 as asciiz)
  call setwindowtext(hwnd02edit02,string02+chr$(0))
end sub
sub text03(string03 as asciiz)
  call setwindowtext(hwnd02edit03,string03+chr$(0))
end sub
sub text04(string04 as asciiz)
  call setwindowtext(hwnd02edit04,string04+chr$(0))
end sub
sub text05(string05 as asciiz)
  call setwindowtext(hwnd02edit05,string05+chr$(0))
end sub
sub cleartext
  call setwindowtext(hwnd02edit02,""+chr$(0))
  call setwindowtext(hwnd02edit03,""+chr$(0))
  call setwindowtext(hwnd02edit04,""+chr$(0))
  call setwindowtext(hwnd02edit05,""+chr$(0))
end sub
sub command01
  key01=1
  key02=0
  key03=0
  key04=0
  key05=0
end sub
sub command02
  key01=0
  key02=1
  key03=1
  key04=0
  key05=0
end sub
sub command03
  key01=0
  key02=1
  key03=1
  key04=1
  key05=0
end sub
sub command04
  key01=0
  key02=1
  key03=1
  key04=1
  key05=1
end sub
function winmain(byval hcurrinstance as long,byval hprevinstance as long,lpcmdline as asciiz ptr,byval ncmdshow as long) as long
  local msg as tagmsg,wclass as wndclassex,hwnd02 as dword
  szappname = "nycta01"
  wclass.cbsize = sizeof(wclass)
  wclass.style = %cs_hredraw or %cs_vredraw
  wclass.lpfnwndproc = codeptr(mainwndproc)
  wclass.cbclsextra = 0
  wclass.cbwndextra = 0
  wclass.hinstance = hcurrinstance
  wclass.hicon = loadicon(%null,byval %idi_application)
  wclass.hcursor = loadcursor(%null,byval %idc_arrow)
  wclass.hbrbackground = createsolidbrush(&hff0000)
  wclass.lpszmenuname = %null
  wclass.lpszclassname = varptr(szappname)
  wclass.hiconsm = loadicon(%null,byval %idi_application)
  call registerclassex(wclass)
  hwnd02 = createwindow(szappname,"NYCTA Subway Program",%ws_overlappedwindow,%cw_usedefault,%cw_usedefault,%cw_usedefault,%cw_usedefault,%null,%null,hcurrinstance,%null)
  call showwindow(hwnd02,%sw_showmaximized)
  call updatewindow(hwnd02)
  while getmessage(msg,%null,0,0)
    call translatemessage(msg)
    call dispatchmessage(msg)
  wend
  function = msg.wparam
end function
function mainwndproc(byval hwnd02 as dword,byval wmsg as dword,byval wparam as dword,byval lparam as dword) export as long
  static hfont as long
  static lpcs as createstruct ptr
  select case wmsg
    case %wm_create
      lpcs = lparam
      hfont=createfont(48,24,0,0,0,0,0,0,0,0,0,0,0,"arial")
      hwnd02edit01 = createwindow("edit",byval %null,%ws_child or %ws_visible or %ws_border  or %es_left or %es_nohidesel,25,25,750,50,hwnd02,1,@lpcs.hinstance,%null)
      hwnd02edit02 = createwindow("edit",byval %null,%ws_child or %ws_visible or %ws_border  or %es_left or %es_nohidesel,25,100,750,50,hwnd02,1,@lpcs.hinstance,%null)
      hwnd02edit03 = createwindow("edit",byval %null,%ws_child or %ws_visible or %ws_border  or %es_left or %es_nohidesel,25,175,750,50,hwnd02,1,@lpcs.hinstance,%null)
      hwnd02edit04 = createwindow("edit",byval %null,%ws_child or %ws_visible or %ws_border  or %es_left or %es_nohidesel,25,250,750,50,hwnd02,1,@lpcs.hinstance,%null)
      hwnd02edit05 = createwindow("edit",byval %null,%ws_child or %ws_visible or %ws_border  or %es_left or %es_nohidesel,25,325,750,50,hwnd02,1,@lpcs.hinstance,%null)
      call sendmessage(hwnd02edit01,%wm_setfont,hfont,%true)
      call sendmessage(hwnd02edit02,%wm_setfont,hfont,%true)
      call sendmessage(hwnd02edit03,%wm_setfont,hfont,%true)
      call sendmessage(hwnd02edit04,%wm_setfont,hfont,%true)
      call sendmessage(hwnd02edit05,%wm_setfont,hfont,%true)
      stationnumber=72
      terminal=1
      string06="Skip "
      call command01
      call selectstation
      function = 0
    case %wm_char
      if wparam=27 then
        call deleteobject(hfont)
        call postquitmessage(0)
      end if
      if wparam=49 and key01 then
        buttonpressed=1
        incr stationnumber
        call selectstation
      end if
      if wparam=50 and key02 then
        buttonpressed=2
        call selectstation
      end if
      if wparam=51 and key03 then
        buttonpressed=3
        call selectstation
      end if
      if wparam=52 and key04 then
        buttonpressed=4
        call selectstation
      end if
      if wparam=53 and key05 then
        buttonpressed=5
        call selectstation
      end if
      if wparam=69 or wparam=101 then string06="Skip "
      if wparam=76 or wparam=108 then string06="Stop at "
      function = 0
    case %wm_destroy
      call deleteobject(hfont)
      call postquitmessage(0)
      function = 0
    case else
      function = defwindowproc(hwnd02,wmsg,wparam,lparam)
  end select
end function

I am not sure if I can rewrite the program so that it uses DDT instead of WIN32API. How about creating a dialog box that lets me choose subway terminals? Jeffrey.

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

**Guest** · 30 Mar 2000, 11:01 AM

Hi Jeffrey,
I took a look at your code and yes it can be switched to ddt, so far I haven't found too many things that can't, if you really want to. I was curious to see what it looked like so I downloaded the code. If I can ask a question, do you need to use textboxes? If you are not allowing user input and are programmatically changing the text(which it appears you are) then it might be better to use labels instead of textboxes. Just a thought. Also, you have several case statements that "call" the same procedure, so you might want to consolidate them to reduce the code some more.

Code:

Select case stationnumber
  ...
  case 2,10
    call text01("Stop at Beach 60th street")
  ...
end select

It will reduce your code even more since I found their were several of those in you case block.

Regards
Adam

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

**Jeffrey Morris** · 30 Mar 2000, 01:13 PM

Adam, I will try using text labels in my program but I am not sure if I can change the background color of the text labels. Text labels usually have gray background and text boxes usually have white background. I will try consolidating my code. Jeffrey.

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

**Jeffrey Morris** · 18 Apr 2000, 03:08 PM

I wrote a new version of the subway stop program that uses two dialog boxes created using DDT. When I click on the "X" icon on the top-right corner of the dialog box, the dialog box exits but the program is still running and I have to call up the Task Manager to terminate the program. How can I fix this problem? Jeffrey.

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

**Lance Edmonds** · 19 Apr 2000, 05:21 AM

While the dialog is being dismissed, there must still be part of the code running or the appp would terminate correctly.

As you imply that have two dialogs visible at the same time, I assume that you are using at least one modeless dialog? This means you must have a DIALOG DOEVENTS message pump running too - unless this pump loop drops out when the appropriate dialog is destroyed, the code will run for ever and your app will not terminate naturally.

If you can post the latest version of your code, we may be able to offer a more exacting solution.

Thanks!

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

**Jeffrey Morris** · 19 Apr 2000, 11:05 AM

Lance, Here is part of the source code:

Code:

#compile exe
#register none
#dim all
#include "win32api.inc"
global hdlg01 as long
global hdlg02 as long
global hfont as long
global buttonpressed as long
global stopindex as long
global string07 as string
sub selectstation
  select case stopindex
    case 1
      call text01("Stop at Beach 67th Street")
    case 2
      call text01("Stop at Beach 60th Street")
    case 3
      call text01("Stop at Beach 44th Street")
    case 4
      call text01("Stop at Beach 36th Street")
    case 5
      call text01("Stop at Beach 25th Street")
    case 6
      call text01("Change Direction at Far Rockaway")
    case 7
      call text01("Stop at Beach 25th Street")
    case 8
      call text01("Stop at Beach 36th Street")
    case 9
      call text01("Stop at Beach 44th Street")
    case 10
      call text01("Stop at Beach 60th Street")
    case 11
      call text01("Stop at Beach 67th Street")
      call text02("2 - To Broad Channel")
      call text03("3 - To Beach 90th Street")
      call command02
      if buttonpressed=2 then
        call cleartext
        call command01
        stopindex=561
        control send hdlg02,101,%bm_click,0,0
      end if
      if buttonpressed=3 then
        call cleartext
        call command01
        stopindex=11
        control send hdlg02,101,%bm_click,0,0
      end if
    case 12
      call text01("Stop at Beach 90th Street")
    case 13
      call text01("Stop at Beach 98th Street")
    case 14
      call text01("Stop at Beach 105th Street")
    case 15
      call text01("Change Direction at Rockaway Park")
    case 16
      call text01("Stop at Beach 105th Street")
    case 17
      call text01("Stop at Beach 98th Street")
    case 18
      call text01("Stop at Beach 90th Street")
      call text02("2 - To Broad Channel")
      call text03("3 - To Beach 67th Street")
      call command02
      if buttonpressed=2 then
        call cleartext
        call command01
        stopindex=561
        control send hdlg02,101,%bm_click,0,0
      end if
      if buttonpressed=3 then
        call cleartext
        call command01
        stopindex=0
        control send hdlg02,101,%bm_click,0,0
      end if
    case 19
      call text01("Stop at Broad Channel")
  end select
end sub
sub command01
  control enable hdlg02,101
  control disable hdlg02,102
  control disable hdlg02,103
  control disable hdlg02,104
  control disable hdlg02,105
end sub
sub command02
  control disable hdlg02,101
  control enable hdlg02,102
  control enable hdlg02,103
  control disable hdlg02,104
  control disable hdlg02,105
end sub
sub command03
  control disable hdlg02,101
  control enable hdlg02,102
  control enable hdlg02,103
  control enable hdlg02,104
  control disable hdlg02,105
end sub
sub command04
  control disable hdlg02,101
  control enable hdlg02,102
  control enable hdlg02,103
  control enable hdlg02,104
  control enable hdlg02,105
end sub
sub text01(string01 as string)
  control set text hdlg02,112,string01
end sub
sub text02(string02 as string)
  control set text hdlg02,113,string02
end sub
sub text03(string03 as string)
  control set text hdlg02,114,string03
end sub
sub text04(string04 as string)
  control set text hdlg02,115,string04
end sub
sub text05(string05 as string)
  control set text hdlg02,116,string05
end sub
sub text06(string06 as string)
  control set text hdlg02,117,string06
end sub
sub cleartext
  control set text hdlg02,113,""
  control set text hdlg02,114,""
  control set text hdlg02,115,""
  control set text hdlg02,116,""
end sub
callback function nextstation as long
  buttonpressed=1
  incr stopindex
  call selectstation
end function
callback function route01 as long
  buttonpressed=2
  call selectstation
end function
callback function route02 as long
  buttonpressed=3
  call selectstation
end function
callback function route03 as long
  buttonpressed=4
  call selectstation
end function
callback function route04 as long
  buttonpressed=5
  call selectstation
end function
callback function newroute as long
  dialog show state hdlg02,%sw_hide
  dialog show modal hdlg01
end function
callback function expressstops as long
  string07="Skip "
  text06("Express Stops")
end function
callback function localstops as long
  string07="Stop at "
  text06("Local Stops")
end function
callback function exitprogram01 as long
  deleteobject hfont
  dialog end hdlg01
  dialog end hdlg02
end function
callback function exitprogram02 as long
  deleteobject hfont
  dialog end hdlg01
  dialog end hdlg02
end function
callback function runprogram as long
  dialog show state hdlg01,%sw_hide
  dialog show modal hdlg02
  call cleartext
  call command01
  string07="Skip "
  text06("Express Stops")
end function
callback function option01 as long
  stopindex=6
  call selectstation
end function
callback function option02 as long
  stopindex=15
  call selectstation
end function
callback function option03 as long
  stopindex=21
  call selectstation
end function
callback function option04 as long
  stopindex=536
  call selectstation
end function
callback function option05 as long
  stopindex=546
  call selectstation
end function
callback function option06 as long
  stopindex=276
  call selectstation
end function
callback function option07 as long
  stopindex=538
  call selectstation
end function
callback function option08 as long
  stopindex=537
  call selectstation
end function
callback function option09 as long
  stopindex=31
  call selectstation
end function
callback function option10 as long
  stopindex=49
  call selectstation
end function
callback function option11 as long
  stopindex=545
  call selectstation
end function
callback function option12 as long
  stopindex=241
  call selectstation
end function
callback function option13 as long
  stopindex=229
  call selectstation
end function
callback function option14 as long
  stopindex=544
  call selectstation
end function
callback function option15 as long
  stopindex=543
  call selectstation
end function
callback function option16 as long
  stopindex=329
  call selectstation
end function
callback function option17 as long
  stopindex=72
  call selectstation
end function
callback function option18 as long
  stopindex=540
  call selectstation
end function
callback function option19 as long
  stopindex=541
  call selectstation
end function
callback function option20 as long
  stopindex=542
  call selectstation
end function
callback function option21 as long
  stopindex=91
  call selectstation
end function
callback function option22 as long
  stopindex=539
  call selectstation
end function
callback function option23 as long
  stopindex=549
  call selectstation
end function
callback function option24 as long
  stopindex=535
  call selectstation
end function
callback function option25 as long
  stopindex=203
  call selectstation
end function
callback function option26 as long
  stopindex=501
  call selectstation
end function
callback function option27 as long
  stopindex=521
  call selectstation
end function
callback function option28 as long
  stopindex=548
  call selectstation
end function
callback function option29 as long
  stopindex=547
  call selectstation
end function
callback function option30 as long
  stopindex=216
  call selectstation
end function
callback function option31 as long
  stopindex=285
  call selectstation
end function
callback function option32 as long
  stopindex=308
  call selectstation
end function
callback function option33 as long
  stopindex=355
  call selectstation
end function
callback function option34 as long
  stopindex=550
  call selectstation
end function
callback function option35 as long
  stopindex=339
  call selectstation
end function
callback function option36 as long
  stopindex=367
  call selectstation
end function
callback function option37 as long
  stopindex=386
  call selectstation
end function
callback function option38 as long
  stopindex=404
  call selectstation
end function
callback function option39 as long
  stopindex=456
  call selectstation
end function
callback function option40 as long
  stopindex=442
  call selectstation
end function
callback function option41 as long
  stopindex=551
  call selectstation
end function
callback function option42 as long
  stopindex=552
  call selectstation
end function
callback function option43 as long
  stopindex=419
  call selectstation
end function
callback function option44 as long
  stopindex=553
  call selectstation
end function
callback function option45 as long
  stopindex=478
  call selectstation
end function
callback function option46 as long
  stopindex=554
  call selectstation
end function
callback function option47 as long
  stopindex=555
  call selectstation
end function
callback function option48 as long
  stopindex=556
  call selectstation
end function
callback function option49 as long
  stopindex=557
  call selectstation
end function
callback function option50 as long
  stopindex=558
  call selectstation
end function
function pbmain() as long
  dialog new 0,"NYCTA Subway Program",0,0,500,100,%ws_sysmenu+%ws_maximize to hdlg01
  dialog new 0,"NYCTA Subway Program",0,0,500,100,%ws_sysmenu+%ws_maximize to hdlg02
  control add button,hdlg02,101,"Next Station",10,15,50,20,call nextstation
  control add button,hdlg02,102,"Route 1",10,60,50,25,call route01
  control add button,hdlg02,103,"Route 2",10,105,50,25,call route02
  control add button,hdlg02,104,"Route 3",10,150,50,25,call route03
  control add button,hdlg02,105,"Route 4",10,195,50,25,call route04
  control add button,hdlg02,108,"New route",10,285,50,25,call newroute
  control add button,hdlg02,109,"Express stops",75,285,50,25,call expressstops
  control add button,hdlg02,110,"Local stops",140,285,50,25,call localstops
  control add button,hdlg02,111,"Exit program",205,285,50,25,call exitprogram02
  control add textbox,hdlg02,112,"",75,10,440,35
  control add textbox,hdlg02,113,"",75,55,440,35
  control add textbox,hdlg02,114,"",75,100,440,35
  control add textbox,hdlg02,115,"",75,145,440,35
  control add textbox,hdlg02,116,"",75,190,440,35
  control add textbox,hdlg02,117,"",75,235,440,35
  hfont=createfont(48,24,0,0,0,0,0,0,0,0,0,0,0,"arial")
  control send hdlg02,112,%wm_setfont,hfont,%true
  control send hdlg02,113,%wm_setfont,hfont,%true
  control send hdlg02,114,%wm_setfont,hfont,%true
  control send hdlg02,115,%wm_setfont,hfont,%true
  control send hdlg02,116,%wm_setfont,hfont,%true
  control send hdlg02,116,%wm_setfont,hfont,%true
  control send hdlg02,117,%wm_setfont,hfont,%true
  control add option,hdlg01,119,"Far Rockaway",10,10,100,15,call option01
  control add option,hdlg01,120,"Rockaway Park",10,30,100,15,call option02
  control add option,hdlg01,121,"Lefferts Boulevard",10,50,100,15,call option03
  control add option,hdlg01,122,"Euclid Avenue",10,70,100,15,call option04
  control add option,hdlg01,123,"World Trade Center",10,90,100,15,call option05
  control add option,hdlg01,124,"21st Street",10,110,100,15,call option06
  control add option,hdlg01,125,"145th Street",10,130,100,15,call option07
  control add option,hdlg01,126,"168th Street",10,150,100,15,call option08
  control add option,hdlg01,127,"207th Street",10,170,100,15,call option09
  control add option,hdlg01,128,"205th Street",10,190,100,15,call option10
  control add option,hdlg01,129,"71st Avenue",10,210,100,15,call option11
  control add option,hdlg01,130,"Jamaica Center",10,230,100,15,call option12
  control add option,hdlg01,131,"179th Street",10,250,100,15,call option13
  control add option,hdlg01,132,"Brighton Beach",10,270,100,15,call option14
  control add option,hdlg01,133,"Prospect Park",10,290,100,15,call option15
  control add option,hdlg01,134,"Franklin Avenue",10,310,100,15,call option16
  control add option,hdlg01,135,"Stillwell Avenue",10,330,100,15,call option17
  control add option,hdlg01,136,"Smith Street",120,10,100,15,call option18
  control add option,hdlg01,137,"Church Avenue",120,30,100,15,call option19
  control add option,hdlg01,138,"Kings Highway",120,50,100,15,call option20
  control add option,hdlg01,139,"95th Street",120,70,100,15,call option21
  control add option,hdlg01,140,"Bay Parkway",120,90,100,15,call option22
  control add option,hdlg01,141,"Whitehall Street",120,110,100,15,call option23
  control add option,hdlg01,142,"Lexington Avenue",120,130,100,15,call option24
  control add option,hdlg01,143,"Ditmars Boulevard",120,150,100,15,call option25
  control add option,hdlg01,144,"Times Square",120,170,100,15,call option26
  control add option,hdlg01,145,"Main Street",120,190,100,15,call option27
  control add option,hdlg01,146,"Broad Street",120,210,100,15,call option28
  control add option,hdlg01,146,"Chambers Street",120,230,100,15,call option29
  control add option,hdlg01,147,"Metropolitan Avenue",120,250,100,15,call option30
  control add option,hdlg01,148,"Rockaway Parkway",120,270,100,15,call option31
  control add option,hdlg01,149,"8th Avenue",120,290,100,15,call option32
  control add option,hdlg01,150,"New Lots Avenue",120,310,100,15,call option33
  control add option,hdlg01,151,"Utica Avenue",120,330,100,15,call option34
  control add option,hdlg01,152,"Flatbush Avenue",230,10,100,15,call option35
  control add option,hdlg01,153,"South Ferry",230,30,100,15,call option36
  control add option,hdlg01,154,"242nd Street",230,50,100,15,call option37
  control add option,hdlg01,155,"148th Street",230,70,100,15,call option38
  control add option,hdlg01,156,"241st Street",230,90,100,15,call option39
  control add option,hdlg01,157,"Dyre Avenue",230,110,100,15,call option40
  control add option,hdlg01,158,"Bowling Green",230,130,100,15,call option41
  control add option,hdlg01,159,"Brooklyn Bridge",230,150,100,15,call option42
  control add option,hdlg01,160,"Woodlawn",230,170,100,15,call option43
  control add option,hdlg01,161,"East 177th Street",230,190,100,15,call option44
  control add option,hdlg01,162,"Pelham Bay Park",230,210,100,15,call option45
  control add option,hdlg01,163,"36th Street",230,230,100,15,call option46
  control add option,hdlg01,164,"Euclid Avenue",230,250,100,15,call option47
  control add option,hdlg01,165,"Myrtle Avenue",230,270,100,15,call option48
  control add option,hdlg01,166,"East 180th Street",230,290,100,15,call option49
  control add option,hdlg01,167,"125th Street",230,310,100,15,call option50
  control add button,hdlg01,200,"Run program",230,330,50,15,call runprogram
  control add button,hdlg01,201,"Exit program",290,330,50,15,call exitprogram01
  dialog show modal hdlg01
end function

If I click on the "Exit" button in either dialog box, the program terminates correctly. Jeffrey.

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