Option Compare Database
Option Explicit
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long

Private Const SYNCHRONIZE = &H100000
Private Const INFINITE = -1&

' Usporava shel
' to finish, hiding while we wait.
Private Sub UsporiShell(ByVal program_name As String, ByVal window_style As Integer)
Dim process_id As Long
Dim process_handle As Long
    ' Start the program.
    On Error GoTo ShellError
    process_id = Shell(program_name, window_style)
    On Error GoTo 0

    ' Wait for the program to finish.
    ' Get the process handle.
    process_handle = OpenProcess(SYNCHRONIZE, 0, process_id)
    If process_handle <> 0 Then
        WaitForSingleObject process_handle, INFINITE
        CloseHandle process_handle
    End If

    Exit Sub

ShellError:
    MsgBox "Error starting task " & _
         program_name & vbCrLf & _
        Err.Description, vbOKOnly Or vbExclamation, _
        "Error"
End Sub