Automatic shut down
Page 130 of 178 DLT-V83 Series Manual V1.31 Advantech-DLoG
Device shut down
If the operating system is shut down, all applications will be notified via the Windows
message “WM_QUERYENDSESSION” first.
Every application must then respond within the time set in the registry. If there is no
response within the preset time, the application will be hard-terminated.
It may not be possible to close an application automatically if it has unsaved data.
Example: For example, the WORDPAD.EXE program (included in Windows) cannot be
closed automatically if there are unsaved changes. In such a situation,
WORDPAD.EXE will acknowledge the “WM_QUERYENDSESSION” Windows
message by prompting the user to choose whether to save or not.
All applications that can be terminated without user confirmation using the keyboard
shortcut <ALT> + <F4> will normally also respond correctly to the
“WM_QUERYENDSESSION” message and therefore do not need to be hard-
terminated.
To ensure that important data is saved correctly, the application must respond
appropriately to “WM_QUERYENDSESSION”, i.e. the backup data must be saved
without user confirmation and within the preset time.
12.3. Configuration
The DLoG Config program is used for the configuration of the automatic shut down
under MS Windows. The manual with the same name can be found online in the
download center at www.advantech-dlog.com.
The configuration under Linux is explained in the Linux manual and is also available in
the download center (after login).
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