Announcement

**Dave Biggs** · 3 Dec 2008, 09:48 AM

Adding %TCS_MULTILINE to the Control Add Tab statement doesn't produce multiline tabs but this does..'

Code:

SetWindowLong hCtrl, %GWL_STYLE, (GetWindowLong (hCtrl,%GWL_STYLE) OR %TCS_MULTILINE)

- except the second line of tabs is obscured - seems the TAB PAGE sizes need to be adjusted..!

This copy of the PBWin90 TabControl.bas sample has been modified to compensate and seems to do the job,
thanks to some code posted by Nick Melnick
You shouldn't have to do this though. It does negate to some extent, the ease of use of the new Tab functions.

I'll send it in to PB support for their comments.

Code:

'==============================================================================
'
'  TABCONTROL.BAS example for PowerBASIC for Windows
'  Copyright (c) 2008 PowerBASIC, Inc.
'  All Rights Reserved.
'
'  Small DDT demonstration of a Tab control.
'
'==============================================================================
 
#COMPILER PBWIN 9
#COMPILE EXE
#DIM ALL
 
' Contains the XP Manifest file to give the
' application the XP look and feel
#RESOURCE "TabControl.pbr"
 
#INCLUDE "win32api.inc"
#INCLUDE "CommCtrl.inc"               ' Need some equates and Functions not built in to PBWin90
                                      ' %TCS_MULTILINE isn't built in - for a reason?? :)
' Control equates
%ID_TAB            = 1000
%ID_TAB1_TBFIRST   = 1001
%ID_TAB1_LBFIRST   = 1002
%ID_TAB1_LBLAST    = 1003
%ID_TAB1_TBLAST    = 1004
%ID_TAB1_BNSUBMIT  = 1005
%ID_TAB2_CBCHOICES = 1006
%ID_TAB3_LBCHOICES = 1007
%ID_TAB3_TEXTBOX   = 1008
%AC_RETURN         = 2001
%AC_TAB            = 2002
 
GLOBAL hDlg AS LONG
'------------------/
 
FUNCTION PBMAIN () AS LONG
  LOCAL hTab1     AS LONG
  LOCAL hTab2     AS LONG
  LOCAL hTab3     AS LONG
  LOCAL hTab4     AS LONG'
  LOCAL hTab5     AS LONG'
  LOCAL hTab6     AS LONG'
  LOCAL hTab7     AS LONG'
  LOCAL hBoldFont AS LONG
 
    LOCAL hAccel    AS DWORD            ' Part of fix for keyboard TABBING behaviour
    DIM AccelTbl(1) AS ACCELAPI         ' dim array of 'ACCELAPI' type
 
    AccelTbl(0).FVIRT   = %FVIRTKEY     ' flag indicates key member specifies a virtual-key code
    AccelTbl(0).KEY     = %VK_RETURN    ' virtual key code (could be ASCII Char code, see FVIRT)
    AccelTbl(0).CMD     = %AC_RETURN    ' accelerator ID for %WM_COMMAND / CBCTL {LOWRD(WPARAM)} msg
 
    AccelTbl(1).FVIRT   = %FVIRTKEY
    AccelTbl(1).KEY     = %VK_TAB
    AccelTbl(1).CMD     = %AC_TAB
 
  ' Create the font used by some controls in this example
  FONT NEW "Arial", 10, 1 TO hBoldFont
 
  DIALOG NEW 0, "Tab Control Example", , , 300, 160, %WS_POPUP OR %WS_BORDER OR %WS_DLGFRAME OR %WS_CAPTION OR _
    %WS_SYSMENU OR %WS_CLIPSIBLINGS OR %WS_VISIBLE OR %DS_MODALFRAME OR %DS_3DLOOK OR %DS_NOFAILCREATE OR _
    %DS_SETFONT, %WS_EX_CONTROLPARENT OR %WS_EX_LEFT OR %WS_EX_LTRREADING OR %WS_EX_RIGHTSCROLLBAR, TO hDlg
 
  ' Add a Tab control to the main dialog box   
  CONTROL ADD TAB, hDlg, %ID_TAB, "", 1, 1, 170, 138    ' original width 298
  ' Enable keyboard cues
  CONTROL SEND hDlg, %ID_TAB, %WM_UPDATEUISTATE, MAKLNG(%UIS_CLEAR, %UISF_HIDEFOCUS OR %UISF_HIDEACCEL), 0
 
  ' Build the Tab 1 dialog and it's controls
  TAB INSERT PAGE hDlg, %ID_TAB, 1, 0, "Tab 1", CALL TabProc TO hTab1
  CONTROL ADD LABEL,   hTab1, %ID_TAB1_LBFIRST,  "First name", 2, 6, 100, 12
  CONTROL SET COLOR    hTab1, %ID_TAB1_LBFIRST, %WHITE, -2
  CONTROL SET FONT     hTab1, %ID_TAB1_LBFIRST, hBoldFont
  CONTROL ADD TEXTBOX, hTab1, %ID_TAB1_TBFIRST, "", 60, 6, 100, 12
 
  CONTROL ADD LABEL,   hTab1, %ID_TAB1_LBLAST,  "Last name", 2, 20, 100, 12
  CONTROL SET COLOR    hTab1, %ID_TAB1_LBLAST, %WHITE, -2
  CONTROL SET FONT     hTab1, %ID_TAB1_LBLAST, hBoldFont
  CONTROL ADD TEXTBOX, hTab1, %ID_TAB1_TBLAST, "", 60, 20, 100, 12
 
  CONTROL ADD BUTTON,  hTab1, %ID_TAB1_BNSUBMIT, "Submit", 60, 90, 50, 14     ' orig 235, 100, 50, 14
  CONTROL SET FONT     hTab1, %ID_TAB1_BNSUBMIT, hBoldFont
 
  ' Build the Tab 2 dialog and it's controls
  TAB INSERT PAGE hDlg, %ID_TAB, 2, 0, "Tab 2", CALL TabProc TO hTab2
  CONTROL ADD COMBOBOX, hTab2, %ID_TAB2_CBCHOICES, , 2, 6, 100, 40, %CBS_DROPDOWNLIST OR %WS_TABSTOP OR %WS_CHILD
  CONTROL SET COLOR     hTab2, %ID_TAB2_CBCHOICES, %BLACK, %GREEN
  CONTROL SET FONT      hTab2, %ID_TAB2_CBCHOICES, hBoldFont
  COMBOBOX ADD          hTab2, %ID_TAB2_CBCHOICES, "Choice 1"
  COMBOBOX ADD          hTab2, %ID_TAB2_CBCHOICES, "Choice 2"
  COMBOBOX ADD          hTab2, %ID_TAB2_CBCHOICES, "Choice 3"
  COMBOBOX ADD          hTab2, %ID_TAB2_CBCHOICES, "Choice 4"
  COMBOBOX ADD          hTab2, %ID_TAB2_CBCHOICES, "Choice 5"
  COMBOBOX SELECT       hTab2, %ID_TAB2_CBCHOICES, 1
 
  ' Build the Tab 3 dialog and it's controls
  TAB INSERT PAGE hDlg, %ID_TAB, 3, 0, "Tab 3", CALL TabProc TO hTab3
  CONTROL ADD LISTBOX,  hTab3, %ID_TAB3_LBCHOICES, , 2, 6, 100, 60
  CONTROL SET COLOR     hTab3, %ID_TAB3_LBCHOICES, %WHITE, %RED
  CONTROL SET FONT      hTab3, %ID_TAB3_LBCHOICES, hBoldFont
  LISTBOX ADD           hTab3, %ID_TAB3_LBCHOICES, "Item 1"
  LISTBOX ADD           hTab3, %ID_TAB3_LBCHOICES, "Item 2"
  LISTBOX ADD           hTab3, %ID_TAB3_LBCHOICES, "Item 3"
  LISTBOX ADD           hTab3, %ID_TAB3_LBCHOICES, "Item 4"
  LISTBOX ADD           hTab3, %ID_TAB3_LBCHOICES, "Item 5"
  LISTBOX ADD           hTab3, %ID_TAB3_LBCHOICES, "Item 6"
  LISTBOX ADD           hTab3, %ID_TAB3_LBCHOICES, "Item 7"
 
  CONTROL ADD TEXTBOX,  hTab3, %ID_TAB3_TEXTBOX, "", 120, 6, 100, 12, %WS_CHILD OR %WS_TABSTOP OR %WS_VISIBLE OR %ES_READONLY
  CONTROL SET COLOR     hTab3, %ID_TAB3_TEXTBOX, %WHITE, %RED
  CONTROL SET FONT      hTab3, %ID_TAB3_TEXTBOX, hBoldFont
 
  ' Additional tabs for test
  TAB INSERT PAGE hDlg, %ID_TAB, 4, 0, "Tab 4", CALL TabProc TO hTab4
  TAB INSERT PAGE hDlg, %ID_TAB, 5, 0, "Tab 5", CALL TabProc TO hTab5
  TAB INSERT PAGE hDlg, %ID_TAB, 6, 0, "Tab 6", CALL TabProc TO hTab6
  TAB INSERT PAGE hDlg, %ID_TAB, 7, 0, "Tab 7", CALL TabProc TO hTab7
 
   ACCEL ATTACH hDlg, AccelTbl() TO hAccel          ' <<- Added for TABBING fix
   ' Display the main dialog box
  DIALOG SHOW MODAL hDlg, CALL DlgProc              ' <<- ADDED Call DlgProc
 
  FONT END hBoldFont
 
END FUNCTION
'------------------/
 
' Callback function used by all Tab dialogs
CALLBACK FUNCTION TabProc
  LOCAL hDC  AS LONG
  LOCAL cTab AS LONG
  LOCAL i    AS LONG
  LOCAL s    AS STRING
 
  SELECT CASE AS LONG CB.MSG
 
    CASE %WM_ERASEBKGND
      ' Display each Tab dialog with a differnt gradient background color
      TAB GET SELECT hDlg, %ID_TAB TO cTab
      hDC = CB.WPARAM
      DrawGradient hDC, cTab
      FUNCTION = 1
      EXIT FUNCTION
 
    CASE %WM_COMMAND
      SELECT CASE AS LONG CB.CTL
 
        CASE %ID_TAB1_BNSUBMIT
          IF CB.CTLMSG = %BN_CLICKED OR CB.CTLMSG = 1 THEN
            MSGBOX "Submit button on Tab 1 clicked", %MB_TASKMODAL
          END IF
 
        CASE %ID_TAB2_CBCHOICES
          IF CB.CTLMSG = %CBN_SELCHANGE THEN
            COMBOBOX GET SELECT CB.HNDL, %ID_TAB2_CBCHOICES TO i
            COMBOBOX GET TEXT   CB.HNDL, %ID_TAB2_CBCHOICES, i TO s
            ? "You selected "+s
          END IF
 
        CASE %ID_TAB3_LBCHOICES
          IF CB.CTLMSG = %LBN_SELCHANGE THEN
            LISTBOX GET SELECT CB.HNDL, %ID_TAB3_LBCHOICES TO i
            LISTBOX GET TEXT   CB.HNDL, %ID_TAB3_LBCHOICES, i TO s
            CONTROL SET TEXT   CB.HNDL, %ID_TAB3_TEXTBOX, s
          END IF
 
      END SELECT
 
  END SELECT
 
END FUNCTION
'------------------/TabProc
 ' New callback to handle keyboard TABBING (accelerator keys) and Tab Page resizing for Multiline Tabs.
CALLBACK FUNCTION DlgProc()
 LOCAL cTab, hTC AS LONG
 STATIC hCtrl AS DWORD
 LOCAL r AS Rect
 LOCAL hTab1 AS DWORD
 LOCAL nTab, n AS LONG
 DIM hTab() AS DWORD
 
  SELECT CASE AS LONG CB.MSG
    CASE %WM_INITDIALOG
      SetFocus GetDlgItem(CB.HNDL, %ID_TAB)
      CONTROL HANDLE hDlg, %ID_TAB TO hCtrl
 
      ' Additional Style for Multiline Tabs
      SetWindowLong hCtrl, %GWL_STYLE, (GetWindowLong (hCtrl,%GWL_STYLE) OR %TCS_MULTILINE)
      PlaceTabPageDlg(hDlg, %ID_TAB, r)                   ' Get new page sizes to suit multiline tabs
 
      TAB GET COUNT hDlg, %ID_TAB TO nTab                 ' Apply new page sizes
      REDIM hTab(1 To nTab)
      FOR n = 1 TO nTab
        TAB GET DIALOG hDlg, %ID_TAB, n TO hTab(n)
        MoveWindow hTab(n), r.nLeft, r.nTop, r.nRight, r.nBottom, %FALSE
      NEXT
 
    CASE %WM_COMMAND
      SELECT CASE AS LONG CB.CTL
        CASE %AC_TAB                                                      ' Accelerator key msg
          SELECT CASE GetDlgCtrlID(GetFocus)
            CASE %ID_TAB                                                  ' focus is on the Tab control
              TAB GET SELECT CBHNDL, %ID_TAB TO cTab
              TAB GET DIALOG CBHNDL, %ID_TAB, cTab TO hTC                 ' handle of current tab page
              SetFocus (hTC)
              EXIT FUNCTION
 
            CASE %ID_TAB1_BNSUBMIT, %ID_TAB2_CBCHOICES, %ID_TAB3_TEXTBOX  ' = last in TAB Order on this Tab page
              SetFocus GetDlgItem(CB.HNDL, %ID_TAB)                       ' set focus to Tab control
              EXIT FUNCTION
 
            CASE ELSE
             SetFocus GetNextDlgTabItem (GetParent(GetFocus), GetFocus, %False)
          END SELECT
 
        CASE %AC_RETURN
          IF GetDlgCtrlID(GetFocus) = %ID_TAB1_BNSUBMIT THEN
            KeyBd_Event %VK_Space, 0, 0, 0: SLEEP 1
            KeyBd_Event %VK_Space, 0, %KEYEVENTF_KEYUP, 0: SLEEP 1
            EXIT FUNCTION
          END IF
          SetFocus GetNextDlgTabItem (GetParent(GetFocus), GetFocus, %False)
      END SELECT
 
  END SELECT
END FUNCTION
'------------------/DlgProc
 
SUB PlaceTabPageDlg(BYVAL hDlg AS DWORD, BYVAL TabCtlID AS LONG, r AS RECT)
   ' Nick Melnick [URL]http://www.powerbasic.com/support/fo...ML/002681.html[/URL]
   ' Returns new x position, new y position, new width and height in r
   LOCAL hTab AS DWORD, x AS LONG, y AS LONG
   LOCAL rc AS RECT
 
   hTab = GetDlgItem(hDlg, TabCtlID)               ' Get handle of Tab Control
   GetWindowRect hTab, BYVAL VARPTR(r)             ' Get its size in screen coordinates
   rc = r
   SendMessage hTab, %TCM_ADJUSTRECT, %FALSE, BYVAL VARPTR(rc)   ' Get size of tab control's DISPLAY AREA
 
   ' r.nLeft & r.nTop are set to the page dialog's new x & y position, wrt the (Tab Control) parent.
   ' Will center your page dialog within the tab control's display area.
   ' r.nRight & r.nBottom are set to the page dialog's new width & height, respectively.
   ' This is the size that the tab control would like your page dialog to be.
   ' Result is in pixels.
   SetRect r, rc.nLeft - r.nLeft, rc.nTop - r.nTop, rc.nright - rc.nleft, rc.nbottom -rc.ntop
 
END SUB
'------------------/PlaceTabPageDlg
 
SUB DrawGradient (BYVAL hDC AS DWORD, BYVAL p AS LONG)
  LOCAL rectFill AS RECT
  LOCAL rectClient AS RECT
  LOCAL fStep AS SINGLE
  LOCAL hBrush AS DWORD
  LOCAL lOnBand AS LONG
 
  GetClientRect WindowFromDC(hDC), rectClient
  fStep = rectClient.nbottom / 200
 
  FOR lOnBand = 0 TO 199
    SetRect rectFill, 0, lOnBand * fStep, rectClient.nright + 1, (lOnBand + 1) * fStep
 
    SELECT CASE p
      CASE 1
        hBrush = CreateSolidBrush(RGB(0, 0, 255 - lOnBand))
      CASE 2
        hBrush = CreateSolidBrush(RGB(0, 255 - lOnBand, 0))
      CASE ELSE
 
        hBrush = CreateSolidBrush(RGB(255 - lOnBand, 0, 0))
    END SELECT
 
    Fillrect hDC, rectFill, hBrush
    DeleteObject hBrush
  NEXT
 
END SUB 
'------------------/DrawGradient

**Michael Mattias** · 3 Dec 2008, 11:48 AM

except the second line of tabs is obscured - seems the TAB PAGE sizes need to be adjusted..!
......
I'll send it in to PB support for their comments.

"As documented, the TCS_MULTILINE STYLE is not supported?"

**Barry Erick** · 3 Dec 2008, 09:05 PM

Dave,
Thanks for the routine. It does seem to do the job.

Michael:
Where does it say it is documented that it is not supported? It is not mentioned in the docs for CONTROL ADD TAB. It is obvious not to be recognized as it is not in the compiler (only in ComCtrl.inc) and the IDE does not recognize it, either. I can understand if you have mulitlines of 2, 3, 4 or more, that the TAB INSERT PAGE may have trouble.. especially since those can be added before the extra pages, but they seem to be fine in the example Dave gave.

**Dave Biggs** · 4 Dec 2008, 05:22 AM

"As documented, the TCS_MULTILINE STYLE is not supported?"

I think MCM's guessed reply was a little tongue-in-cheek.

Jeff's actual reply was:

The keyboard tabbing will be fixed in an upcoming service release.
Sorry, but I do not have a date.

The multi-line style is not compatible with a DDT tab control. I have
logged your request, but for multi-line tab controls you will need to
use the API and not DDT.

(The request was that this style be supported in a future release).
Empiricaly a mixture of DDT and API does seem to 'deliver', in PBWin90, in this situation. (Caveat emptor as usual

)

**Barry Erick** · 4 Dec 2008, 10:31 PM

I did have to modify the fix from Nick Melnick as the pages were over to the right slightly. I had to subract 5 pixels from the r.nleft final value. That had to do with the exact styles I am using.

Showing that it is possible to do this multiline with the DDT items, I would think all of this could be stuck into PBWin with no problem. Bob does do wonderful things with his compiler. I just wish PB Forms was updated for ListView and TAB controls.

**Rodney Hicks** · 4 Dec 2008, 11:50 PM

I just wish PB Forms was updated for ListView and TAB controls.

Have you sent in a New Feature Suggestion(NFS)?

**Dave Biggs** · 5 Dec 2008, 07:49 AM

Barry,

..I had to subract 5 pixels from the r.nleft final value.

I have tweaked Nick's Sub in the sample code above - removed the MapWindowPoints adjustments which aren't needed. You might want to try the same in your code.

I too am eagerly awaiting the next version of PBForms!

**Michael Mattias** · 5 Dec 2008, 08:12 AM

> think MCM's guessed reply was a little tongue-in-cheek.
Jeff's actual reply was:
...The multi-line style is not compatible with a DDT tab control.

"Not compatible with" sure sounds a lot like "not supported," just as "issue" sure sounds a lot like "bug" and "respiratory and cardiac arrest" sounds a lot like, "dead."

However, IMO this disclaimer should be in the help file as an annotation to the "style otions" for the DDT-style tab control.

MCM

**Barry Erick** · 5 Dec 2008, 09:46 AM

WHo has the copyright on MCM? We buy parts from MCM Electronics, but if I were to make a bet with my 401k I would bet you've been around longer than them.. Wait, I can't bet my 401k. Like Jay Leno said, "I saw my 401k on my mile carton"

Announcement

CONTROL ADD TAB and %TCS_MULTILINE

CONTROL ADD TAB and %TCS_MULTILINE

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