On Wed, 10 Mar 2021 15:38:27 GMT, Alexey Ivanov <aiva...@openjdk.org> wrote:
> [JDK-8153732](https://bugs.openjdk.java.net/browse/JDK-8153732) implemented > polling for remote printers. > That bug description also mentions watching the registry for changes and > links to the article which describes the method yet it does so in terms of > WMI. Using WMI is not necessary to watch for the registry updates. > > It is possible to replace polling mechanism with registry change > notifications. If the registry at `HKCU\Printers\Connections` is updated, > refresh the list of print services. > > It works perfectly well in my own testing with sharing a Generic / Text Only > printer from another laptop. The notification comes as soon as the printer is > installed, it results in a new key created under `Connections`. If a remote > printer is removed, the notification is also triggered as the key > corresponding to that printer is removed from the registry. > > I updated the steps in the manual test: `RemotePrinterStatusRefresh.java`. src/java.desktop/windows/native/libawt/windows/WPrinterJob.cpp line 259: > 257: NULL, > 258: FALSE); > 259: if (keepMonitoring) { I guess having "FALSE" as fAsynchronous value mean the function does not return until a change has occurred so do we still need this do-while monitoring loop? And if the function fails once, should we stop monitoring? ------------- PR: https://git.openjdk.java.net/jdk/pull/2915
