Messages:
Private Const WM_INITDIALOG = &amp;H110
Private Const WM_NOTIFY = &amp;H4E
Private Const WM_USER = &amp;H400
Private Const WM_GETDLGCODE = &amp;H87
Private Const WM_NCDESTROY = &amp;H82


' Notification codes:
Private Const H_MAX As Long = &amp;HFFFF + 1
Private Const CDN_FIRST = (H_MAX - 601)
Private Const CDN_LAST = (H_MAX - 699)

'// Notifications when Open or Save dialog status changes
Private Const CDN_INITDONE = (CDN_FIRST - &amp;H0)
Private Const CDN_SELCHANGE = (CDN_FIRST - &amp;H1)
Privat