3D-printing/OrcaSlicer
1
0
Fork 0
mirror of https://github.com/SoftFever/OrcaSlicer.git synced 2025-07-10 08:17:51 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Win32 specific: Using SHChangeNotifyRegister to get notifications

Browse source 
on removable media insert / eject events.
From now on we no more poll for removable media on Windows.

Thanks @mjgtp from prusaprinters.org
See the following discussion:
https://forum.prusaprinters.org/forum/prusaslicer/prusaslicer-trying-to-access-my-floppy-disk-a

The final working code sample was taken from Chromium source code,
volume_mount_watcher_win.cc
This commit is contained in:
bubnikv 2020-03-27 08:10:00 +01:00
parent 3fdd643f49
commit 58192ba6c2
4 changed files with 73 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

35
src/slic3r/GUI/MainFrame.cpp
View file

@ -33,6 +33,7 @@
#ifdef _WIN32
#include <dbt.h>
#include <shlobj.h>
#endif // _WIN32
namespace Slic3r {
@ -127,6 +128,30 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
// DEV_BROADCAST_HANDLE NotificationFilter = { 0 };
// NotificationFilter.dbch_size = sizeof(DEV_BROADCAST_HANDLE);
// NotificationFilter.dbch_devicetype = DBT_DEVTYP_HANDLE;
// Using Win32 Shell API to register for media insert / removal events.
LPITEMIDLIST ppidl;
if (SHGetSpecialFolderLocation(this->GetHWND(), CSIDL_DESKTOP, &ppidl) == NOERROR) {
SHChangeNotifyEntry shCNE;
shCNE.pidl = ppidl;
shCNE.fRecursive = TRUE;
// Returns a positive integer registration identifier (ID).
// Returns zero if out of memory or in response to invalid parameters.
m_ulSHChangeNotifyRegister = SHChangeNotifyRegister(this->GetHWND(), // Hwnd to receive notification
SHCNE_DISKEVENTS, // Event types of interest (sources)
SHCNE_MEDIAINSERTED | SHCNE_MEDIAREMOVED,
//SHCNE_UPDATEITEM, // Events of interest - use SHCNE_ALLEVENTS for all events
WM_USER_MEDIACHANGED, // Notification message to be sent upon the event
1, // Number of entries in the pfsne array
&shCNE); // Array of SHChangeNotifyEntry structures that
// contain the notifications. This array should
// always be set to one when calling SHChnageNotifyRegister
// or SHChangeNotifyDeregister will not work properly.
assert(m_ulSHChangeNotifyRegister != 0); // Shell notification failed
} else {
// Failed to get desktop location
assert(false);
}
#endif // _WIN32
// propagate event
@ -161,8 +186,14 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
void MainFrame::shutdown()
{
#ifdef _WIN32
::UnregisterDeviceNotification(HDEVNOTIFY(m_hDeviceNotify));
m_hDeviceNotify = nullptr;
if (m_hDeviceNotify) {
::UnregisterDeviceNotification(HDEVNOTIFY(m_hDeviceNotify));
m_hDeviceNotify = nullptr;
}
if (m_ulSHChangeNotifyRegister) {
SHChangeNotifyDeregister(m_ulSHChangeNotifyRegister);
m_ulSHChangeNotifyRegister = 0;
}
#endif // _WIN32
if (m_plater)