FAQ's de VB6

[vbx3m]

Con esto puedes ocultar y/o mostrar los iconos que se encuentran al aldo del reloj del taskbar.

En un módulo:

Código:

Public isvisible As Integer
Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As Long, y, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Private Const HWND_TOPMOST = -1
Private Const HWND_NOTOPMOST = -2
Private Const SWP_NOMOVE = &H2
Private Const SWP_NOSIZE = &H1
Private Const TOPMOST_FLAGS = SWP_NOMOVE Or SWP_NOSIZE
Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Public Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long

Public Function HideTaskBarIcons()
    Dim FindClass As Long, Handle As Long
    FindClass& = FindWindow("Shell_TrayWnd", "")
    Handle& = FindWindowEx(FindClass&, 0, "TrayNotifyWnd", vbNullString)
    ShowWindow Handle&, 0
End Function

Public Function ShowTaskBarIcons()
    Dim FindClass As Long, Handle As Long
    FindClass& = FindWindow("Shell_TrayWnd", "")
    Handle& = FindWindowEx(FindClass&, 0, "TrayNotifyWnd", vbNullString)
    ShowWindow Handle&, 1
End Function

Public Function HideTaskBarClock()
    Dim FindClass As Long, FindParent As Long, Handle As Long
    FindClass& = FindWindow("Shell_TrayWnd", vbNullString)
    FindParent& = FindWindowEx(FindClass&, 0, "TrayNotifyWnd", vbNullString)
    Handle& = FindWindowEx(FindParent&, 0, "TrayClockWClass", vbNullString)
    ShowWindow Handle&, 0
End Function

Public Function ShowTaskBarClock()
    Dim FindClass As Long, FindParent As Long, Handle As Long
    FindClass& = FindWindow("Shell_TrayWnd", vbNullString)
    FindParent& = FindWindowEx(FindClass&, 0, "TrayNotifyWnd", vbNullString)
    Handle& = FindWindowEx(FindParent&, 0, "TrayClockWClass", vbNullString)
    ShowWindow Handle&, 1
End Function

Public Function HideDesktop()
    ShowWindow FindWindowEx(FindWindowEx(FindWindow("Progman", vbNullString), 0&, "SHELLDLL_DefView", vbNullString), 0&, "SysListView32", vbNullString), 0
End Function

Public Function ShowDesktop()
    ShowWindow FindWindowEx(FindWindowEx(FindWindow("Progman", vbNullString), 0&, "SHELLDLL_DefView", vbNullString), 0&, "SysListView32", vbNullString), 5
End Function

Public Function HideStartButton()
    Dim Handle As Long, FindClass As Long
    FindClass& = FindWindow("Shell_TrayWnd", "")
    Handle& = FindWindowEx(FindClass&, 0, "Button", vbNullString)
    ShowWindow Handle&, 0
End Function

Public Function ShowStartButton()
    Dim Handle As Long, FindClass As Long
    FindClass& = FindWindow("Shell_TrayWnd", "")
    Handle& = FindWindowEx(FindClass&, 0, "Button", vbNullString)
    ShowWindow Handle&, 1
End Function

Public Function HideTaskBar()
    Dim Handle As Long
    Handle& = FindWindow("Shell_TrayWnd", vbNullString)
    ShowWindow Handle&, 0
End Function

Public Function ShowTaskBar()
    Dim Handle As Long
    Handle& = FindWindow("Shell_TrayWnd", vbNullString)
    ShowWindow Handle&, 1
End Function

Public Sub MakeNormal(hwnd As Long)
    SetWindowPos hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, TOPMOST_FLAGS
End Sub

Public Sub MakeTopMost(hwnd As Long)
    SetWindowPos hwnd, HWND_TOPMOST, 0, 0, 0, 0, TOPMOST_FLAGS
End Sub

En el form:

Código:

Dim ico As Integer
Dim clo As Integer
Dim stb As Integer
Dim tsk As Integer
Dim dsk As Integer

Private Sub Command1_Click()
If isvisible = 1 Then
        If ico = 0 Then
        ShowTaskBarIcons
        ico = 1
        ElseIf ico = 1 Then
        HideTaskBarIcons
        ico = 0
        End If
    ElseIf isvisible = 0 Then
    End If
End Sub

Private Sub Command2_Click()
If isvisible = 1 Then
        If clo = 0 Then
        ShowTaskBarClock
        clo = 1
        ElseIf clo = 1 Then
        HideTaskBarClock
        clo = 0
        End If
    ElseIf isvisible = 0 Then
    End If
End Sub

Private Sub Command3_Click()
If isvisible = 1 Then
        If stb = 0 Then
        ShowStartButton
        stb = 1
        ElseIf stb = 1 Then
        HideStartButton
        stb = 0
        End If
    ElseIf isvisible = 0 Then
    End If
End Sub

Private Sub Command4_Click()
 If isvisible = 1 Then
        If tsk = 0 Then
        ShowTaskBar
        tsk = 1
        ElseIf tsk = 1 Then
        HideTaskBar
        tsk = 0
        End If
    ElseIf isvisible = 0 Then
    End If
End Sub

Private Sub Command5_Click()
If isvisible = 1 Then
        If dsk = 0 Then
        ShowDesktop
        dsk = 1
        ElseIf dsk = 1 Then
        HideDesktop
        dsk = 0
        End If
    ElseIf isvisible = 0 Then
    End If
End Sub

Private Sub Command6_Click()
   If isvisible = 1 Then
        ShowTaskBarIcons
        ShowTaskBarClock
        ShowDesktop
        ShowStartButton
        ShowTaskBar
        ico = 1
        clo = 1
        stb = 1
        tsk = 1
        dsk = 1
    ElseIf isvisible = 0 Then
    End If
End Sub

Private Sub Form_Load()
MakeTopMost Me.hwnd
isvisible = 1
ico = 1
clo = 1
stb = 1
tsk = 1
dsk = 1
End Sub

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