Un API il poti declara si im modul si in Form . Daca il declari in form , si cred ca e mai bine sa il declari in Form , il declari sus de tot , in cod , ca sa zic asa , in sectiunea Declarations , si important , in Form il declari ca Private . Daca il declari intr-un modul il declari ca public . Api-ul e : Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long