Goals

Create Tcl/Tk extension to provide some level of control over Windows power management support for Tk applications.

That is: to provide a way for Tcl/Tk applications to handle

• WM_POWERBROADCAST and its various classes of reported info (suspend/resume, etc);
• WM_QUERYENDSESSION and WM_ENDSESSION.

Status

Production/ready.

Implemented

• Ability to bind to WM_QUERYENDSESSION and WM_ENDSESSION ("Query end session" request can be cancelled by the callback script if desired).
• Ability to bind to WM_POWERBROADCAST and the basic classes of its info (PBT_APMPOWERSTATUSCHANGE, PBT_APMRESUMEAUTOMATIC, PBT_APMRESUMESUSPEND and PBT_APMSUSPEND).
• It's possible to inspect the system's power status and the messages being processed.