A Key’s Odyssey – the path of a keystroke message through the VCL
Posted by jpluimers on 2018/10/09
Blast from the past, but still relevant, this article by Peter Below:
This article follows the path of a keystroke message through the VCL. You will learn how the key processing is implemented, how the OnKey events work and what intervention points for the programmer can be found in the whole process. In addition, things like message processing are explained, and you will learn how to trace messages in the debugger from the message loop to their eventual destination.
Source: [WayBack] A Key’s Odyssey
Via: [WayBack] Vcl.Controls.pasprocedure TWinControl.CNKeyDown(var Message: TWMKeyDown);..if IsMenuKey(Message) then Exit; … – Attila Kovacs – Google+
-jeroen
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