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GetMessageExtraInfo The GetMessageExtraInfo function retrieves the extra message information for the current thread. Extra message information is an application- or driver-defined value associated with the current thread's message queue.
VB4-32,5,6
Declare Function GetMessageExtraInfo Lib "user32" () As Long |
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Operating Systems Supported |
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Requires Windows NT 3.1 or later; Requires Windows 95 or later |
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The return value specifies the extra information. The meaning of the extra information is device specific. |
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