win12.hlp (Table of Contents; Topic list)
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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
PM message functions (1.2)
Function Groups  Overview                         Up Next Previous
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WinBroadcastMsg      Broadcasts a message to multiple windows
WinCallMsgFilter     Calls a message-filter hook
WinCreateMsgQueue    Creates a message queue
WinDdePostMsg        Posts a message to a message queue
WinDestroyMsgQueue   Destroys a message queue
WinDispatchMsg       Dispatches a message
WinGetMsg            Retrieves a message from a message queue
WinInSendMsg         Determines whether thread is processing a message
WinPeekMsg           Inspects the thread's message queue
WinPostMsg           Posts message to specified window's message queue
WinPostQueueMsg      Posts message to any message queue in the system
WinQueryMsgPos       Retrieves the position of a message
WinQueryMsgTime      Retrieves the time when a message was posted
WinQueryQueueStatus  Retrieves the status of a message queue
WinSendDlgItemMsg    Sends a message to a dialog item
WinSendMsg           Sends a message to a window
WinWaitMsg           Waits for a filtered message