From 3234823a1ac92917b678cdbc5c6d111210f99add Mon Sep 17 00:00:00 2001
From: bubnikv <bubnikv@gmail.com>
Date: Fri, 13 Mar 2020 19:30:41 +0100
Subject: [PATCH] Windows do not send an update on insert / eject of an SD card
 into an external SD card reader. Windows also do not send an update on
 software eject of a FLASH drive. We can likely use the Windows WMI API, but
 it will be quite time consuming to implement, therefore we lower the polling
 interval back to two seconds.

https://www.codeproject.com/Articles/10539/Making-WMI-Queries-In-C
https://docs.microsoft.com/en-us/windows/win32/wmisdk/wmi-start-page
https://docs.microsoft.com/en-us/windows/win32/wmisdk/com-api-for-wmi
https://docs.microsoft.com/en-us/windows/win32/wmisdk/example--receiving-event-notifications-through-wmi-
---
 src/slic3r/GUI/RemovableDriveManager.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/slic3r/GUI/RemovableDriveManager.cpp b/src/slic3r/GUI/RemovableDriveManager.cpp
index 17aa60997..cdb1c1d45 100644
--- a/src/slic3r/GUI/RemovableDriveManager.cpp
+++ b/src/slic3r/GUI/RemovableDriveManager.cpp
@@ -450,9 +450,14 @@ void RemovableDriveManager::thread_proc()
 		{
 			std::unique_lock<std::mutex> lck(m_thread_stop_mutex);
 #ifdef _WIN32
-	    	// Wait 30 seconds for the stop signal, wake up time to time to remove those devices that the user ejected in file explorer
-	    	// or another application (for example in Cura). This is a workaround, as Windows does not send an event on software eject of a drive.
-			m_thread_stop_condition.wait_for(lck, std::chrono::seconds(30), [this]{ return m_stop || m_wakeup; });
+			// Windows do not send an update on insert / eject of an SD card into an external SD card reader.
+			// Windows also do not send an update on software eject of a FLASH drive.
+			// We can likely use the Windows WMI API, but it will be quite time consuming to implement.
+			// https://www.codeproject.com/Articles/10539/Making-WMI-Queries-In-C
+			// https://docs.microsoft.com/en-us/windows/win32/wmisdk/wmi-start-page
+			// https://docs.microsoft.com/en-us/windows/win32/wmisdk/com-api-for-wmi
+			// https://docs.microsoft.com/en-us/windows/win32/wmisdk/example--receiving-event-notifications-through-wmi-
+			m_thread_stop_condition.wait_for(lck, std::chrono::seconds(2), [this]{ return m_stop || m_wakeup; });
 #else
 			m_thread_stop_condition.wait_for(lck, std::chrono::seconds(2), [this]{ return m_stop; });
 #endif