Name

RegisterWindowMessage

Synopsis

Registers a new message that the system can use: 

Public Declare Function RegisterWindowMessage Lib "user32" _
    Alias "RegisterWindowMessageA" _
    (ByVal lpString As String) As Long

Parameters

lpString

A null-terminated string that identifies the new message

Return Value

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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