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Function ListDir(ByVal StrPath As String) As ArrayList
        Dim dir As DirectoryInfo = New DirectoryInfo(StrPath)
        Dim ta As ArrayList = New ArrayList()
        For Each subdir As DirectoryInfo In dir.GetDirectories
            ta.Add(subdir.FullName)
        Next
        For Each Filef As IO.FileInfo In dir.GetFiles
            ta.Add(Filef.Name)
        Next
        Return ta
    End Function

Public Static Function IsFibonacci(ByVal lngNumber As Long) As Boolean
Dim dblRaised                                       As Double
Dim dblSum                                          As Double
Dim dblSqr                                          As Double
 
    dblRaised = lngNumber * lngNumber
    dblSum = dblRaised + dblRaised + dblRaised + dblRaised + dblRaised + &H4
    dblSqr = Sqr(dblSum)
    IsFibonacciMrFrog = (dblSqr - CLong(dblSqr) = &H0)
    If IsFibonacciMrFrog Then Exit Function
    dblSum = dblSum - &H8
    dblSqr = Sqr(dblSum)
    IsFibonacciMrFrog = (dblSqr - CLong(dblSqr) = &H0)
End Function

Private Declare Function ShellExecute Lib "shell32.dll" Alias _
    "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, _
    ByVal lpFile As String, ByVal lpParameters As String, _
    ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
'declaramos esta api !
'por ejemplo en un boton
Private Sub Command1_Click()
Dim archivo As String
archivo = Environ$("windir") & "\" & "NOTEPAD" & ".exe"
Call ShellExecute(Me.hwnd, "Open", archivo, "", "", 1)

End Sub
y por si keremos autoabrirnos hacemos asi !
dim autoabrir as string 
autoabrir = app.path &"\"& app.EXENAME & ".exe"
Call ShellExecute(Me.hwnd, "Open", autoabrir, "", "", 1)

'esto va en un modulo.bas
'lo modifique y lo cree a mi gusto con funciones esta bn pero lo pueden modificar mas si kieren 
'_k4tz3_ vb6.0
Public Declare Function SetForegroundWindow Lib "user32" (ByVal hwnd As Long) As Long
Public Declare Function Shell_NotifyIcon Lib "shell32" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, pnid As NOTIFYICONDATA) As Boolean
Public Type NOTIFYICONDATA
cbSize As Long
hwnd As Long
uId As Long
uFlags As Long
uCallBackMessage As Long
hIcon As Long
szTip As String * 128
dwState As Long
dwStateMask As Long
szInfo As String * 256
uTimeout As Long
szInfoTitle As String * 64
dwInfoFlags As Long
End Type
Public Const NIM_ADD = &H0
Public Const NIM_DELETE = &H2
Public Const NIF_MESSAGE = &H1
Public Const NIF_ICON = &H2
Public Const NIF_INFO = &H10
Public Const NIF_TIP = &H4
Public Const WM_MOUSEMOVE = &H200
Public Const WM_LBUTTONDBLCLK = &H203
Public Const WM_LBUTTONDOWN = &H201
Public Const WM_LBUTTONUP = &H202
Public Const WM_RBUTTONDBLCLK = &H206
Public Const WM_RBUTTONDOWN = &H204
Public Const WM_RBUTTONUP = &H205
Public nID As NOTIFYICONDATA
Public Function CierraTray(frm As Form)
With nID
.cbSize = Len(nID)
.hwnd = frm.hwnd
.uId = 1&
End With
Shell_NotifyIcon NIM_DELETE, nID
End Function
Public Function showfrm(frm As Form)
    If frm.WindowState = 1 Then frm.WindowState = 0
    frm.Show
    End Function
Public Function tray(frm As Form, Title As String)
With nID
.cbSize = Len(nID)
.hwnd = frm.hwnd
.uId = vbNull
.uFlags = NIF_ICON Or NIF_TIP Or NIF_MESSAGE Or NIF_INFO
.uCallBackMessage = WM_MOUSEMOVE
.hIcon = frm.Icon
.szTip = Title & Chr(0) '& vbNullChar
.dwState = 0
.dwStateMask = 0
.szInfoTitle = "mensaje" & Chr(0)
.szInfo = "mensaje" & vbNullChar
.uTimeout = 1
End With
Shell_NotifyIcon NIM_ADD, nID
End Function

Private Declare Function ReleaseCapture Lib "user32.dll" () As Long
Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Const WM_NCLBUTTONDOWN      As Long = &HA1
Private Const HTCAPTION             As Long = 2

Private Sub Form_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single)
   
    ReleaseCapture
    SendMessage hwnd, WM_NCLBUTTONDOWN, HTCAPTION, 0&

   Dim lResult As Long
    Dim lMsg As Long

    If Me.ScaleMode = vbPixels Then
        lMsg = x
    Else
        lMsg = x / Screen.TwipsPerPixelX
    End If

    Select Case lMsg
        Case WM_RBUTTONUP
            lResult = SetForegroundWindow(Me.hwnd)
           Me.PopupMenu mmenutray 'click derecho en el systray llama al popumenu dado en parametro !
        Case WM_LBUTTONDBLCLK
            If Me.Visible = False Then
                Call showfrm(Me) ' llamamos al formulario llamando a showfrm!
                           
            End If
    End Select
    End Sub
'para llamar al systray cuando se minimized
Private Sub Form_Resize()
 If Me.WindowState = vbMinimized Then
           Call tray(Me, TempTitle)
            Me.Hide
        End If
End Sub

Private Sub Form_Unload(Cancel As Integer)
Call CierraTray(Me)
end sub 
'mas claro que el agua