Navigation section

wm_powerbroadcast

About this tag
The WM_POWERBROADCAST message is a Windows system notification sent to applications when power management events occur, such as display sleep or wake. In this forum thread, a developer reports that their frontend application stops receiving WM_POWERBROADCAST messages when the screen saver timeout is shorter than the power-save timeout. The application fails to detect display sleep and wake events, causing the screen saver to be killed unexpectedly. The discussion focuses on troubleshooting why WM_POWERBROADCAST is not delivered, likely due to message filtering or thread-specific message queues. This tag covers issues related to power management message handling in Windows applications.
  1. liz08

    Windows 10 Screen Saver getting killed when display is turned off due to powersave timeout.

    I have a frontend application always running and receiving windows messages. When screen saver timeout is less than powersave timeout, my screen saver is getting killed and my frontend application is not receiving WM_POWERBROADCAST message when the displaying is going for sleep. Also due to...
    • liz08
    • Thread
    • display sleep frontend keyboard event mouse movement power saving screensaver timeout user activity windows message wm_powerbroadcast
    • Replies: 1
    • Forum: Windows Help and Support
Back
Top