ShutdownSystem Method

Shuts down or reboots the operating system.


bool ShutdownSystem(const QString& qsShutdownPrompt, int iTimeout, bool bForceCloseApps, bool bReboot);


This method shuts down or (if Reboot is true) reboots the operating system. If the appropriate privileges cannot be obtained, or if the InitiateSystemShutdown system call returns false, then this method will return false; otherwise, it returns true. This method can be used if the installation or uninstallation function requires the system to be rebooted in order to complete.

ShutdownPrompt, if non-empty, specifies a message that the OS should display to the user for Timeout seconds. If empty string is passed for ShutdownPrompt, no message is displayed and the Timeout parameter's value is ignored.

ForceCloseApps specifies whether the OS should forcefully close all applications. Please keep in mind that forceful closing of applications with unsaved data can lead to data loss.

Reboot specifies whether the OS should reboot (true) or just shut down (false).

This method is available in both the class API and the Installer DLL included with the product; please refer to the Driver Installation topic for more information about the latter.

Note: This method cannot be called within events.

Error Handling

This method returns a Boolean value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

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