C# timer malfunctions after PC hibernates?

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i have a timer that shows a form every time a round hour passes ( 3 PM, 4 PM, 5 PM), after PC hibernates, it shows not on round hours anymore...

the first time the timer takes how much time left to the next hour, and takes 60 minutes each time afterwards...

Posted 16-Oct-14 7:36am

john1990_1

Updated 16-Oct-14 7:39am

v3

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BillWoodruff 16-Oct-14 15:01pm

Are you handling the SystemEvents.PowerModeChanged in Microsoft.Win32 to detect when your system hibernates and returns from hibernation ?

If you start monitoring at 6PM, and the user puts the computer into sleep mode at 10:35 PM, and resumes from sleep mode at 3:39AM,when do you want the user to get the first notification after 3:39AM ?

Sergey Alexandrovich Kryukov 16-Oct-14 17:12pm

Much better idea than Solution 1. Will you post it as an answer?
—SA

john1990_1 16-Oct-14 19:23pm

i want a notification every 00 hour, example 5:00 PM then 6:00 PM then 7:00 PM

suppose the program started at 5:34, then the timer will be set to 26 mins, then 60 mins each next time

if the user's PC is hibernating on a 00 hour, it skips notifying on that 00 hour

Sergey Alexandrovich Kryukov 16-Oct-14 17:13pm

Interesting problem, a 5.
—SA

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Mehdi Gholam · Answer 1 · 2014-10-16T07:43:00

Solution 1

Lower your timer tick() to 5-15 seconds (or even 60 seconds) and check if the DateTime at the top of the hour.

Posted 16-Oct-14 7:43am

Mehdi Gholam