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`. This pull request has now been integrated. Changeset: a85dc557 Author: Alexey Ivanov <aiva...@openjdk.org> URL: https://git.openjdk.java.net/jdk/commit/a85dc557 Stats: 207 lines in 3 files changed: 31 ins; 158 del; 18 mod 8263311: Watch registry changes for remote printers update instead of polling Reviewed-by: psadhukhan, serb ------------- PR: https://git.openjdk.java.net/jdk/pull/2915