On 12.05.2017 16:37, Michael Van Canneyt wrote:
Check manually. What else is left ? There is no message queue, so no
loop in which to check at regular basis.
For event processing in a not threaded project or in the main thread of
a threaded project you at best use the Event Queue provided by some
Infrastructure library (e.g. LCL or mse). IMHO, SimpleIPC might makes
sense, if you don't want to use one of those. (mse and an enhanced NoGui
LCL "Widget Type", I have done a working draft for, can provide a
message queue even with no binding to a GUI Widget Set).
But when using SimpleIPC for signaling to another process (executable,
e.g. a Lazarus "Application" ) I suppose, you need a thread to avoid
latency and/or huge CPU demand by polling to transfer the event to the
Main Thread via the Event Queue (e.g. by Application.QueueAsyncCall or
TTherad.Queue).
-Michael
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