Code below shows how to check for message queue input idle. Note that WaitForInputIdle waits only once per process on any thread. So if one of the thread returns idle then it will return right away. Tested on: Windows 10 TH2 (build 1511) Python 3.5.1 64-bit Also need to install pywin32, like: c:\> pip install pypiwin32 This should be run on elevated prompt.
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