Display Userform in TaskBar with custom Icon and Hide Excel (mimicking a standalone application)

Jaafar Tribak

Jaafar Tribak

Well-known Member
Joined
Dec 5, 2002
Messages
9,797
Office Version
  1. 2016
Platform
  1. Windows
Hi dear excel enthusiasts,

The following little project makes your excel userform look like a standalone application by hiding the main excel window and leaving only the userform with a personalised icon added to it that shows on the TaskBar instead of the native excel icon ?

The code makes use of the Shell32.dll ITASKLIST3 Interface at runtime via low level calls to the DispCallFunc API.- (No third-party dll required, all code is self-contained)

This Shell Interface is the only way a button of your application can be added to the windows TaskBar in Windows 7 and onwards.... All resources that i have seen accross the internet rely on setting the WS_EX_APPWINDOW style flag of the userform window but this woked only in Windows XP and backwards., not anymore.



This is the Sub signature - all arguments are self-explanatory :
Code: 
Sub FormToTaskBar _
    ( _
        ByVal Form As Object, _
        Optional ByVal AddIconFromPic As StdPicture, _
        Optional ByVal AddIconFromFile As String, _
        Optional ByVal FileIconIndex As Long = 0, _
        Optional ThumbnailTooltip As String, _
        Optional ByVal HideExcel As Boolean _
    )



Workbook Sample

UserFormInTaskbar_32_64.gif






1- API code in a Standard Module:
VBA Code: 
Option Explicit

'Jaafar Tribak @ MrExcel.com on 07/02/2020.
'Display vba userform icon in taskbar.
'Makes use of the Shell32.dll ITASKLIST3 Interface in order to work in Windows7 and onwards.

Private Type GUID
    Data1 As Long
    Data2 As Integer
    Data3 As Integer
    Data4(0 To 7) As Byte
End Type


Private Type PROPERTYKEY
    fmtid As GUID
    pid As Long
End Type


#If VBA7 Then

    #If Win64 Then
        Private Declare PtrSafe Function GetWindowLong Lib "user32" Alias "GetWindowLongPtrA" (ByVal hwnd As LongPtr, ByVal nIndex As Long) As LongPtr
        Private Declare PtrSafe Function SetWindowLong Lib "user32" Alias "SetWindowLongPtrA" (ByVal hwnd As LongPtr, ByVal nIndex As Long, ByVal dwNewLong As LongPtr) As LongPtr
    #Else
        Private Declare PtrSafe Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As LongPtr, ByVal nIndex As Long) As LongPtr
        Private Declare PtrSafe Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As LongPtr, ByVal nIndex As Long, ByVal dwNewLong As Long) As LongPtr
    #End If
  
    Private Declare PtrSafe Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As LongPtr)
    Private Declare PtrSafe Function DispCallFunc Lib "oleAut32.dll" (ByVal pvInstance As LongPtr, ByVal offsetinVft As LongPtr, ByVal CallConv As Long, ByVal retTYP As Integer, ByVal paCNT As Long, ByRef paTypes As Integer, ByRef paValues As LongPtr, ByRef retVAR As Variant) As Long
    Private Declare PtrSafe Sub SetLastError Lib "kernel32.dll" (ByVal dwErrCode As Long)
    Private Declare PtrSafe Function CoCreateInstance Lib "ole32" (ByRef rclsid As GUID, ByVal pUnkOuter As LongPtr, ByVal dwClsContext As Long, ByRef riid As GUID, ByRef ppv As LongPtr) As Long
    Private Declare PtrSafe Function ExtractIconA Lib "Shell32.dll" (ByVal hInst As LongPtr, ByVal lpszExeFileName As String, ByVal nIconIndex As LongPtr) As Long
    Private Declare PtrSafe Function WindowFromAccessibleObject Lib "oleacc" (ByVal pacc As IAccessible, phwnd As LongPtr) As Long
    Private Declare PtrSafe Function CLSIDFromString Lib "ole32" (ByVal OleStringCLSID As LongPtr, ByRef cGUID As Any) As Long
    Private Declare PtrSafe Function SHGetPropertyStoreForWindow Lib "Shell32.dll" (ByVal hwnd As LongPtr, ByRef riid As GUID, ByRef ppv As LongPtr) As Long
    Private Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As LongPtr
    Private Declare PtrSafe Function ShowWindow Lib "user32" (ByVal hwnd As LongPtr, ByVal nCmdShow As Long) As Long
    Private Declare PtrSafe Function SetProp Lib "user32" Alias "SetPropA" (ByVal hwnd As LongPtr, ByVal lpString As String, ByVal hData As LongPtr) As Long
    Private Declare PtrSafe Function GetProp Lib "user32" Alias "GetPropA" (ByVal hwnd As LongPtr, ByVal lpString As String) As LongPtr
    Private Declare PtrSafe Function RemoveProp Lib "user32" Alias "RemovePropA" (ByVal hwnd As LongPtr, ByVal lpString As String) As LongPtr
    Private Declare PtrSafe Function IsWindowVisible Lib "user32" (ByVal hwnd As LongPtr) As Long
    Private Declare PtrSafe Function DrawMenuBar Lib "user32" (ByVal hwnd As LongPtr) As Long
    Private Declare PtrSafe Function BringWindowToTop Lib "user32" (ByVal hwnd As LongPtr) As Long
    Private Declare PtrSafe Function SetForegroundWindow Lib "user32" (ByVal hwnd As LongPtr) As Long
    Private Declare PtrSafe Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As LongPtr, ByVal wMsg As Long, ByVal wParam As LongPtr, lParam As LongPtr) As Long
    Private Declare PtrSafe Function DeleteObject Lib "gdi32" (ByVal hObject As LongPtr) As Long
  
#Else

    Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
    Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
    Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
    Private Declare Function DispCallFunc Lib "oleAut32.dll" (ByVal pvInstance As Long, ByVal offsetinVft As Long, ByVal CallConv As Long, ByVal retTYP As Integer, ByVal paCNT As Long, ByRef paTypes As Integer, ByRef paValues As Long, ByRef retVAR As Variant) As Long
    Private Declare Sub SetLastError Lib "kernel32.dll" (ByVal dwErrCode As Long)
    Private Declare Function CoCreateInstance Lib "ole32" (ByRef rclsid As GUID, ByVal pUnkOuter As Long, ByVal dwClsContext As Long, ByRef riid As GUID, ByRef ppv As Long) As Long
    Private Declare Function ExtractIconA Lib "Shell32.dll" (ByVal hInst As Long, ByVal lpszExeFileName As String, ByVal nIconIndex As Long) As Long
    Private Declare Function WindowFromAccessibleObject Lib "oleacc" (ByVal pacc As IAccessible, phwnd As Long) As Long
    Private Declare Function CLSIDFromString Lib "ole32" (ByVal OleStringCLSID As Long, ByRef cGUID As Any) As Long
    Private Declare Function SHGetPropertyStoreForWindow Lib "Shell32.dll" (ByVal hwnd As Long, ByRef riid As GUID, ByRef ppv As Long) As Long
    Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
    Private Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long
    Private Declare Function SetProp Lib "user32" Alias "SetPropA" (ByVal hwnd As Long, ByVal lpString As String, ByVal hData As Long) As Long
    Private Declare Function GetProp Lib "user32" Alias "GetPropA" (ByVal hwnd As Long, ByVal lpString As String) As Long
    Private Declare Function RemoveProp Lib "user32" Alias "RemovePropA" (ByVal hwnd As Long, ByVal lpString As String) As Long
    Private Declare Function IsWindowVisible Lib "user32" (ByVal hwnd As Long) As Long
    Private Declare Function DrawMenuBar Lib "user32" (ByVal hwnd As Long) As Long
    Private Declare Function BringWindowToTop Lib "user32" (ByVal hwnd As Long) As Long
    Private Declare Function SetForegroundWindow Lib "user32" (ByVal hwnd As Long) As Long
    Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Long) As Long
    Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long

#End If




'___________________________________________________Public Routines____________________________________________________________________


Public Sub FormToTaskBar _
    ( _
        ByVal Form As Object, _
        Optional ByVal AddIconFromPic As StdPicture, _
        Optional ByVal AddIconFromFile As String, _
        Optional ByVal FileIconIndex As Long = 0, _
        Optional ThumbnailTooltip As String, _
        Optional ByVal HideExcel As Boolean _
    )



    Const VT_LPWSTR = 31
  
    #If Win64 Then
        Const vTblOffsetFac_32_64 = 2
        Dim hform As LongLong, hApp As LongLong, hVbe As LongLong, pPstore As LongLong, pTBarList As LongLong
        Dim PV(0 To 2) As LongLong
      
        PV(0) = VT_LPWSTR: PV(1) = StrPtr("Dummy")
    #Else
        Const vTblOffsetFac_32_64 = 1
        Dim hform As Long, hApp As Long, hVbe As Long, pPstore As Long, pTBarList As Long
        Dim PV(0 To 3) As Long
      
        PV(0) = VT_LPWSTR: PV(2) = StrPtr("Dummy")
    #End If


    Const IPropertyKey_SetValue = 24 * vTblOffsetFac_32_64
    Const IPropertyKey_Commit = 28 * vTblOffsetFac_32_64
    Const ITASKLIST3_HrInit = 12 * vTblOffsetFac_32_64
    Const ITASKLIST3_AddTab = 16 * vTblOffsetFac_32_64
    Const ITASKLIST3_DeleteTab = 20 * vTblOffsetFac_32_64
    Const ITASKLIST3_ActivateTab = 24 * vTblOffsetFac_32_64
    Const ITASKLIST3_SetThumbnailTooltip = 76 * vTblOffsetFac_32_64


    Const IID_PropertyStore = "{886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99}"
    Const IID_PropertyKey = "{9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3}"
    Const CLSID_TASKLIST = "{56FDF344-FD6D-11D0-958A-006097C9A090}"
    Const IID_TASKLIST3 = "{EA1AFB91-9E28-4B86-90E9-9E9F8A5EEFAF}"

    Const CLSCTX_INPROC_SERVER = &H1
    Const S_OK = 0
    Const CC_STDCALL = 4

    Const GWL_STYLE = (-16)
    Const WS_MINIMIZEBOX = &H20000
    Const GWL_HWNDPARENT = (-8)

    Dim tClsID As GUID, tIID As GUID, tPK As PROPERTYKEY

  
    Call WindowFromAccessibleObject(Form, hform)
    Call SetProp(Application.hwnd, "hForm", hform)
    Call SetWindowLong(hform, GWL_HWNDPARENT, 0)
    Call SetWindowLong(hform, GWL_STYLE, GetWindowLong(hform, GWL_STYLE) Or WS_MINIMIZEBOX)
    Call DrawMenuBar(hform)
  
    If Not AddIconFromPic Is Nothing Then
        Call AddIcon(Form, AddIconFromPic, , FileIconIndex)
    ElseIf Len(AddIconFromFile) Then
        Call AddIcon(Form, , AddIconFromFile, FileIconIndex)
    End If

    Call CLSIDFromString(StrPtr(IID_PropertyStore), tIID)
    If SHGetPropertyStoreForWindow(hform, tIID, pPstore) = S_OK Then
        Call CLSIDFromString(StrPtr(IID_PropertyKey), tPK)
        tPK.pid = 5 ':  PV(0) = VT_LPWSTR: PV(1) = StrPtr("Dummy")
        Call vtblCall(pPstore, IPropertyKey_SetValue, vbLong, CC_STDCALL, VarPtr(tPK), VarPtr(PV(0))) 'SetValue Method
         Call vtblCall(pPstore, IPropertyKey_Commit, vbLong, CC_STDCALL) ' Commit Method
        Call CLSIDFromString(StrPtr(CLSID_TASKLIST), tClsID)
        Call CLSIDFromString(StrPtr(IID_TASKLIST3), tIID)
        If CoCreateInstance(tClsID, 0, CLSCTX_INPROC_SERVER, tIID, pTBarList) = S_OK Then
            SetProp Application.hwnd, "pTBarList", pTBarList
            Call vtblCall(pTBarList, ITASKLIST3_HrInit, vbLong, CC_STDCALL) 'HrInit Method
            Call vtblCall(pTBarList, ITASKLIST3_DeleteTab, vbLong, CC_STDCALL, hform) 'DeleteTab Method
            Call vtblCall(pTBarList, ITASKLIST3_AddTab, vbLong, CC_STDCALL, hform) 'AddTab Method
            Call vtblCall(pTBarList, ITASKLIST3_ActivateTab, vbLong, CC_STDCALL, hform) 'ActivateTab Method
            If Len(ThumbnailTooltip) Then
                Call vtblCall(pTBarList, ITASKLIST3_SetThumbnailTooltip, vbLong, CC_STDCALL, hform, StrPtr(ThumbnailTooltip)) 'ActivateTab Method
            End If
            If HideExcel Then
                Application.Visible = False
                hApp = Application.hwnd
                Call SetProp(Application.hwnd, "hApp", hApp)
                Call vtblCall(pTBarList, ITASKLIST3_DeleteTab, vbLong, CC_STDCALL, hApp) 'DeleteTab Method
                hVbe = FindWindow("wndclass_desked_gsk", vbNullString)
                If IsWindowVisible(hVbe) Then
                    Call SetProp(Application.hwnd, "hVbe", hVbe)
                    Call ShowWindow(hVbe, 0)
                    Call vtblCall(pTBarList, ITASKLIST3_DeleteTab, vbLong, CC_STDCALL, hVbe) 'DeleteTab Method
                End If
            End If
        End If
    End If
    Call SetForegroundWindow(hform): Call BringWindowToTop(hform)
  
End Sub


Public Sub ResetTaskbar(Optional ByVal Dummy As Boolean)


    #If Win64 Then
        Const vTblOffsetFac_32_64 = 2
        Dim pTBarList As LongPtr, hform As LongPtr, hApp As LongPtr, hVbe As LongPtr
  
    #Else
        Const vTblOffsetFac_32_64 = 1
        Dim pTBarList As Long, hform As Long, hApp As Long, hVbe As Long
  
    #End If


    Const ITASKLIST3_AddTab = 16 * vTblOffsetFac_32_64
    Const ITASKLIST3_DeleteTab = 20 * vTblOffsetFac_32_64
    Const CC_STDCALL = 4
  
    Dim i As Long

    pTBarList = GetProp(Application.hwnd, "pTBarList")
    hform = GetProp(Application.hwnd, "hForm")
    hApp = GetProp(Application.hwnd, "hApp")
    hVbe = GetProp(Application.hwnd, "hVbe")

    Call vtblCall(pTBarList, ITASKLIST3_DeleteTab, vbLong, CC_STDCALL, hform) 'DeleteTab Method
    For i = 1 To 2
        Call vtblCall(pTBarList, ITASKLIST3_AddTab, vbLong, CC_STDCALL, Choose(i, hApp, hVbe))  'AddTab Method
    Next i
  
    Application.Visible = True


End Sub




'___________________________________________________Private Routines____________________________________________________________________



Private Sub AddIcon(ByVal Form As Object, Optional AddIconFromPic As StdPicture, Optional ByVal AddIconFromFile As String, Optional ByVal Index As Long = 0)
  
    #If Win64 Then
        Dim hwnd As LongPtr, hIcon As LongPtr
    #Else
        Dim hwnd As Long, hIcon As Long
    #End If
  
    Const WM_SETICON = &H80
    Const ICON_SMALL = 0
    Const ICON_BIG = 1

    Dim N As Long, S As String

    Call WindowFromAccessibleObject(Form, hwnd)
    If Not AddIconFromPic Is Nothing Then
        hIcon = Form.Image1.Picture.Handle
        Call SendMessage(hwnd, WM_SETICON, ICON_SMALL, ByVal hIcon)
        Call SendMessage(hwnd, WM_SETICON, ICON_BIG, ByVal hIcon)
    ElseIf Len(AddIconFromFile) Then
        If Dir(AddIconFromFile, vbNormal) = vbNullString Then
            Exit Sub
        End If
        N = InStrRev(AddIconFromFile, ".")
        S = LCase(Mid(AddIconFromFile, N + 1))
        Select Case S
            Case "exe", "ico", "dll"
            Case Else
                Err.Raise 5
        End Select
        If hwnd = 0 Then
            Exit Sub
        End If
        hIcon = ExtractIconA(0, AddIconFromFile, Index)
        If hIcon <> 0 Then
            Call SendMessage(hwnd, WM_SETICON, ICON_SMALL, ByVal hIcon)
        End If
    End If
    Call DrawMenuBar(hwnd)
    DeleteObject hIcon
  
End Sub


#If Win64 Then
    Private Function vtblCall(ByVal InterfacePointer As LongLong, ByVal VTableOffset As Long, ByVal FunctionReturnType As Long, ByVal CallConvention As Long, ParamArray FunctionParameters() As Variant) As Variant

    Dim vParamPtr() As LongLong
#Else
    Private Function vtblCall(ByVal InterfacePointer As Long, ByVal VTableOffset As Long, ByVal FunctionReturnType As Long, ByVal CallConvention As Long, ParamArray FunctionParameters() As Variant) As Variant

    Dim vParamPtr() As Long
#End If

    If InterfacePointer = 0& Or VTableOffset < 0& Then Exit Function
    If Not (FunctionReturnType And &HFFFF0000) = 0& Then Exit Function

    Dim pIndex As Long, pCount As Long
    Dim vParamType() As Integer
    Dim vRtn As Variant, vParams() As Variant

    vParams() = FunctionParameters()
    pCount = Abs(UBound(vParams) - LBound(vParams) + 1&)
    If pCount = 0& Then
        ReDim vParamPtr(0 To 0)
        ReDim vParamType(0 To 0)
    Else
        ReDim vParamPtr(0 To pCount - 1&)
        ReDim vParamType(0 To pCount - 1&)
        For pIndex = 0& To pCount - 1&
            vParamPtr(pIndex) = VarPtr(vParams(pIndex))
            vParamType(pIndex) = VarType(vParams(pIndex))
        Next
    End If

    pIndex = DispCallFunc(InterfacePointer, VTableOffset, CallConvention, FunctionReturnType, pCount, _
    vParamType(0), vParamPtr(0), vRtn)
    If pIndex = 0& Then
        vtblCall = vRtn
    Else
        SetLastError pIndex
    End If

End Function



2- Code Usage in the UserForm Module:
VBA Code: 
Option Explicit


Private Sub UserForm_Initialize()

    Call FormToTaskBar _
        ( _
            Form:=Me, _
            AddIconFromFile:="C:\Users\Info-Hp\Downloads\canada.ico", _
            ThumbnailTooltip:="This is a UserForm Taskbar Tooltip.", _
            HideExcel:=True _
        )


End Sub

Private Sub UserForm_QueryClose(Cancel As Integer, CloseMode As Integer)

    Call ResetTaskbar
  
End Sub
 
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@Jaafar Tribak

Thanks for your time. As I mentioned prior, some user forms open on top of others while some forms are opened by hiding the underlying form. I can get around with making it work by calling Call RemoveFromTaskBar(Me) in the underlying form before loading/opening another form on top of the hidden form. The issue I still have is when a user form is opened on top of a form that will be hidden, when the second user form (topmost) is unloaded and the underlying form is shown, the activate event is not triggered thus not re-loading the taskbar icon (I added the load taskbar icon procedure in the activate and initialize events of the user forms). But my biggest concern is the user can click on the X on the visible taskbar icon popup and/or the shortcut popup menu that is displayed when right-click the minimized icon and exit that form and possibly exit the app. Is there any way to disable that?

Thanks in advance,
FTSC
 
Upvote 0

Excel Facts

What does custom number format of ;;; mean?
Three semi-colons will hide the value in the cell. Although most people use white font instead.
FTSCH said:
@Jaafar Tribak

Thanks for your time. As I mentioned prior, some user forms open on top of others while some forms are opened by hiding the underlying form. I can get around with making it work by calling Call RemoveFromTaskBar(Me) in the underlying form before loading/opening another form on top of the hidden form. The issue I still have is when a user form is opened on top of a form that will be hidden, when the second user form (topmost) is unloaded and the underlying form is shown, the activate event is not triggered thus not re-loading the taskbar icon (I added the load taskbar icon procedure in the activate and initialize events of the user forms). But my biggest concern is the user can click on the X on the visible taskbar icon popup and/or the shortcut popup menu that is displayed when right-click the minimized icon and exit that form and possibly exit the app. Is there any way to disable that?

Thanks in advance,
FTSC
Click to expand...

Sorry for not responding to you sooner ... I was busy.
Anyway, I hope I have understood you correctly ... See if this update works for hidden\visible userforms :
V2-MultipleFormsToTaskBar.xlsm
 
Upvote 0
@Jaafar Tribak

I love this taskbar icon code thing. However I want to remove the title bar from one of my forms as well so it can be like a splash screen. I found code for it, but the API calls are a little different and it is not compatible with your icon code. Can you help?

Remove the Title Bar from a UserForm - TeachExcel.com

Remove the Title Bar and border from a form including the red X or close button This creates a clean UserForm interface and is great for things like splash pages or just giving your forms a cleaner an ...
www.teachexcel.com www.teachexcel.com
 
Upvote 0
Nevermind! I found other code that is compatible. Here's the solution for anyone else who wants it:

VBA Code: 
Public Sub HideFormTitleBar(frm As Object)
    #If VBA7 Then
        Dim lStyle As LongPtr, lFrmHandle As LongPtr
    #Else
        Dim lStyle As Long, lFrmHandle As Long
    #End If
    
    Const GWL_STYLE = (-16)
    Const WS_CAPTION = &HC00000

    lFrmHandle = FindWindow("ThunderDFrame", frm.Caption)
    lStyle = GetWindowLong(lFrmHandle, GWL_STYLE)
    lStyle = lStyle And Not WS_CAPTION
    SetWindowLong lFrmHandle, GWL_STYLE, lStyle
    DrawMenuBar lFrmHandle
End Sub
 
Upvote 0
@Jaafar Tribak

Okay, playing around with this some more, I found an issue. When my userform causes a message box, file save as prompt, etc it disappears. It comes back afterwards, but I don't want it to vanish leaving only the msgbox visible. Thoughts?
 
Upvote 0
Hi @Jaafar Tribak , Is there a way I use this on userform? I tried using it by calling the Start() in userform_activate routine... but it creates one more icon (one of excel and one user defined). Thanks!
 
Upvote 0
noobvba said:
Hi @Jaafar Tribak , Is there a way I use this on userform? I tried using it by calling the Start() in userform_activate routine... but it creates one more icon (one of excel and one user defined). Thanks!
Click to expand...
Sorry for the stupid query.. found your code for multiple userform and it works great for me. Thank you and God bless!
 
Upvote 0
@ Jaafar Tribak
is it possible to add a context menu in the system tray icon added using the Shell_icon function to the System Tray and i am passing icon handle to TrackpopMenu and creating the pop-menu in wndproc at WM_RBUTTONUP

if it is possible please let me know
Thanks in Advance
 
Upvote 0
caprince said:
@ Jaafar Tribak
is it possible to add a context menu in the system tray icon added using the Shell_icon function to the System Tray and i am passing icon handle to TrackpopMenu and creating the pop-menu in wndproc at WM_RBUTTONUP

if it is possible please let me know
Thanks in Advance
Click to expand...

I have never tried adding an icon to the system tray mainly because intercepting the mouse-click events requires subclassing which can make the application unstable or cause it to crash straight away. Having said that, If this is only applied to a MODAL userform icon then, I think, it would work safely as long as proper error handling is set up.

An alternative to subclassing that I can think of is maybe the use of a win32 timer + MSAA or UIAutomation to periodically monitor mouse right button state whenever the user points to the system tray icon with the mouse.
 
Upvote 0
Hey, i created a userform confirming that the user really wants to close the main userform that uses your function (after pressing the X close button). But if i use the

VBA Code: 
Unload MAIN_USERFORM

after the user presses a "yes" button then it doesnt really work, the main userform is not closing. it still appears in the taskbar.

How do i use the "RemoveFromTaskBar" function? Typing it as

VBA Code: 
call RemoveFromTaskbar(MAIN_USERFORM)

or

VBA Code: 
Call RemoveFromTaskBar( _
            Form:=MAIN_USERFORM)

isnt really working either:(
 
Upvote 0
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