January 22, 2000

If you want to prevent the user from closing a form by using Alt+F4 or by clicking on the “X” button in the upper-right corner you just need to write

There are two simple ways to add the so-called size-grips to the bottom-right corner of a form. The first method is to add a StatusBar control, which includes a size-grip

Private Declare Function mciSendString Lib “winmm” Alias “mciSendStringA” _ (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, _ ByVal uReturnLength As Long, ByVal hwndCallback As Long) As LongPrivate Declare Function

Private Declare Function mciSendString Lib “winmm” Alias “mciSendStringA” _ (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, _ ByVal uReturnLength As Long, ByVal hwndCallback As Long) As LongPrivate Declare Function

Private Declare Function mciGetErrorString Lib “winmm” Alias _ “mciGetErrorStringA” (ByVal dwError As Long, ByVal lpstrBuffer As String, _ ByVal uLength As Long) As Long’ Get the description of a MCI

Visual Basic 6 is the first VB version that lets you programmatically change the DataSource property at runtime, for example to point to another ADO Data control or another ADO

Sometimes is useful to add an icon in the Window taskbar’s status area (a.k.a. System Tray), to gain a better interaction between the user and your application. The only API

Const SND_ASYNC = &H1Private Declare Function PlaySound Lib “winmm.dll” Alias “PlaySoundA” (ByVal _ lpszName As String, ByVal hModule As Long, ByVal dwFlags As Long) As Long’ Play a WAV file.”

Const WS_CHILD = &H40000000Private Declare Function mciSendString Lib “winmm” Alias “mciSendStringA” _ (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, _ ByVal uReturnLength As Long, ByVal hwndCallback As Long) As