Excel Formula For Giving The First Number In A String Excel Full Screen View – The Fundamentals

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Excel Full Screen View – The Fundamentals

This is a follow up to my last article Kiosk Full Screen Excel for 2007/2010.

Here I will outline how to create a true full screen look for Excel 2007/2010. Here is an index of the topics we cover. I will include code snippets and my reasoning behind the type of code I use. I hope you find it useful.

1. Hiding the system taskbar

2. Repeating worksheets in kiosk mode

3. Exiting kiosk mode

1. Hiding the system taskbar

Well we have a lot of options when it comes to hiding the system taskbar but we are a bit restricted in one respect because we are going to hook into Excel’s own full screen view we can’t do this and use API calls to move/resize Excel. Application MDI window only to cover the taskbar. So we know we need to hide each launch taskbar completely; We now need to find out how.

One method is to get a handle on the taskbar window and close it. Another method is to toggle/auto-hide the taskbar as you would manually by right-clicking Properties and then checking the Auto-hide taskbar checkbox. The reason I chose the latter is because:

a) Windows 7 OS has some problems that can hide the start button completely (you can almost do it, but you still get a little curve of the button which is ugly. What I found, that or the button is still fully visible – It’s a bit painful.

b) If for some reason you fail to restore the taskbar, users will not thank you for going to the control panel and resetting the taskbar in the taskbar and start menu settings.

c) Finally I found out that in OS like 2007/2010 and XP, Vista or Windows 7 you can start full screen with a toggle and when you call Application.DisplayFullscreen = True the taskbar is hidden while Excel fills the whole screen.

So it is for the above reasons that I chose and still use the following code in my kiosk software in a VBA module:

hide taskbar()

show taskbar()

The choice is clear

private declaration function _

SHAppBarMessage Lib “shell32.dll” _

(ByVal dwMessage As Long, _

ByRef pData As APPBARDATA) Long

Private Const ABS_AUTOHIDE As Long = &H1

Private Const ABM_GETTASKBARPOS Long = &H5

Private Const ABM_GETSTATE As Long = &H4

Private Const ABM_SETSTATE As Long = &HA

Private Const ABM_SETAUTOHIDEBAR Long = &H8

private type RECT

left at length

top as long

As long as correct

Long down

end type

private type APPBARDATA

cbSize as long

hWnd for a long time

uCallbackMessage long

Long live uEdge

As rc RECT

l As long as param

end type

As Dim Abd APPBARDATA

Dim abd_retval, _

abd_setval long

‘ AutoHideTaskBar :: Sets the appdardata, lParam structure to auto-hide the system taskbar

public Sub HideTaskBar()

abd_retval = _

SHAppBarMessage(ABM_GETSTATE, abd)

abd.lParam = _

abd_retval or ABS_AUTOHIDE

abd_setval = _

SHAppBarMessage(ABM_SETSTATE, abd)

end sub

‘RestoreTaskBar:: Restores the auto-hiding system taskbar to its normal state

public sub unhideTaskBar()

abd_retval = _

SHAppBarMessage(ABM_GETSTATE, abd)

abd.lParam = _

abd_retval and not ABS_AUTOHIDE

abd_setval = _

SHAppBarMessage(ABM_SETSTATE, abd)

end sub

2. Repeating worksheets in kiosk mode

For repeating worksheets in kiosk mode. Obviously we have hidden the taskbar and then launched full screen. In my kiosk menu I add the ability to hide gridlines, headings, worksheet tabs, etc. Since it is very basic VBA coding to perform these tasks I will not cover it here. What I will cover and share with you though is some code on how to skip backwards and forwards through hidden or multiple hidden sheets in Excel worksheets. There are many functions out there to browse a way but I wanted to create a method to do this.

First we need to set up an Enum in a VBA code module called b_functions (I gave my two navigator types a unique integer of 3 for the previous one, browse back and 2 for the other one, browse forward):

‘ Browser enum :: Worksheet for navigation

public Enum Navigator

xlNavigatePrevious = 3

xlNavigateNext = 2

End the Enum

We will use the above types to pass to a function called browser(directive) using the following code (we will not return a value):

Repeat the worksheet forward

call b_functions.Browser(xlNavigateNext);

Turn the worksheet over

call b_functions.Browser(xlNavigatePrevious);

Here is a function to work with.

Browser:: Select a sheet or chart (hidden, multi-hidden ignored) dynamically via browser buttons

public function browser (bival direction as navigator)

‘ vars

I, _

J, _

K as an integer

Dim DefaultSheet String ‘ as the selected sheet

DefaultSheet = ActiveWorkbook.ActiveSheet.Name

J = ActiveWorkbook.Sheets.Count

With ActiveWorkbook

For i = 1 to J

If DefaultSheet = .Sheet(i).Name Then

Select the case direction

case xlNavigatePrevious ‘ left

If i > J – (J – 1) then

while.sheet(i – 1).view = xlSheetVeryHidden or _

sheet(i – 1).view = xlSheetHidden

if i – 1 = J – (J – 1) then i = 2: GoTo select_prev else i = i – 1

Wend

select_pre:

Select sheet(i – 1).

Get out for

others

K = J to i for step -1

while.sheet(K).view = xlSheetVeryHidden or _

.Sheets(K).View = xlSheetHidden

K = K – 1

Wend

Select .Sheets(K).

Get out for

what next

Get out for

end if

case xlNavigateNext ‘ right

If I < J then

while.sheet(i + 1).view = xlSheetVeryHidden or _

sheet(i + 1).view = xlSheetHidden

If i + 1 = J Then i = 0: GoTo Select_next Else i = i + 1

Wend

select_next:

Select sheet(i + 1).

Get out for

else if i = J then

For K = 1 to J

while.sheet(K).view = xlSheetVeryHidden or _

.Sheets(K).View = xlSheetHidden

K = K + 1

Wend

Select .Sheets(K).

Get out for

what next

Get out for

end if

End selection

end if

Another i

finish with

closing ceremony

3. Exiting kiosk mode

Starting with Excel 2007 (version 12, release 2007), Excel now allows you to press Esc to exit full-screen mode in Excel, making it somewhat easier. However this raises a real question – how to track/trap the application. Display fullscreen = false event?

Once again I considered subclassing the MDI Excel window and listening to the window messages. I did this partially well (notoriously difficult to do statically without a. DLL) but failed to trap the exit event when the workbook was maximized to full screen size as well as Excel’s main window – all very frustrating. . This is because exiting from full screen here does not trigger any refresh from Excel so theoretically there is no event to capture.

So what else can we do? Well the method I chose was to use the Windows API to create a very nice timer thread to act as a listener for the application. display fullscreen = false event. After some experimentation I decided to check for this event every 1/10th of a second – enough to trick even the most enthusiastic user into exiting kiosk mode.

Here’s the calling code, the subroutines used, the private function prototype declarations (of the .DLL library) and the code to use the timer thread (again all stored in a VBA code module named b_functions):

call b_functions.StartTimer 100

StartTimer (longer bivalve duration)

sub stoptimer()

TimerIsActive() As Boolean

TimerEvent()

‘settimer

private declaration function _

SetTimer Lib “user32” _

(as long as ByVal hWnd, _

As long as val nIDEvent, _

The longer the val uElapse, _

ByVal lpTimerFunc As Long ).

‘ Kill timer

private declaration function _

KillTimer Lib “user32” _

(as long as ByVal hWnd, _

ByVal nIDEvent as long) long

‘Timer Thread ID

long private m_TimerID

Private sub starttimer (bival duration as long)

if m_TimerID = 0 then

m_TimerID = SetTimer(0, 0, duration, address of TimerEvent)

end if

end sub

private Sub stopTimer()

If m_TimerID <> 0 then

KillTimer 0 , m_TimerID

m_TimerID = 0

** EXIT CODE HERE **

end if

end sub

Private Property TimerIsActive() Get As Boolean

TimerIsActive = (m_TimerID <> 0)

end property

private SubTimer event()

If Application.DisplayFullScreen = False then

Stoptimer

end if

end sub

Well that wraps it up for now. Mark Kubiszyn.

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