OnWindowidEvent_MessageNotification

The OnWindowidEvent_MessageNotification event is fired when a message is sent to the window. Message notifications are only generated for messages specified during a call to RegisterMessageNotification. This event is generated before the message is actually sent to the window or processed by Messenger Plus!.

Syntax

[number] OnWindowidEvent_MessageNotification(
    [object] PlusWnd,
    [number] Message,
    [number] wParam,
    [number] lParam
);

Parameters

PlusWnd

[object] The PlusWnd object attached to the window that generated the event.

Message

[number] Identifier of the message being received by the window. Check out the MSDN Library and the Platform SDK include files for more details.

wParam

[number] First parameter (wParam) sent with the message. This is generally a number, a pointer to a string or a pointer to some raw data.

lParam

[number] Second parameter (lParam) sent with the message. This is generally a number, a pointer to a string or a pointer to some raw data.

Return Value

Messenger Plus! has two ways to interpret the return value. If the value is -1, the message is processed by the window normally, as if the script notification never occurred. If the value is anything but -1, it is used as the return value for the message and the default processing for the message is skipped.

Remarks

In case of doubt, always return -1 to make sure the message is properly received and interpreted by the window. Preventing standard system messages (like WM_PAINT) to be processed by the window can have disastrous effects.

Event Information

See Also

Script Windows Events, PlusWnd Object, RegisterMessageNotification.