June 2001
Intermediate to advanced
706 pages
24h 10m
English
RegisterWindowMessage
Registers a new message that the system can use:
Public Declare Function RegisterWindowMessage Lib "user32" _
Alias "RegisterWindowMessageA" _
(ByVal lpString As String) As LonglpString
A null-terminated string that identifies the new message
Returns a unique number identifying the message in the range of
&HC000 to &HFFFF.
Messages in this range are global to the system; therefore, after a
message is registered, any application can use it. If a
is returned, the message failed to register.
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