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tweaks to presence monitoring
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@tig
tig committed Dec 28, 2020
1 parent 33dfc36 commit 54dba61
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Showing 3 changed files with 94 additions and 21 deletions.
2 changes: 1 addition & 1 deletion Installer/version.txt
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@@ -1 +1 @@
2.2.7.56
2.2.7.66
6 changes: 6 additions & 0 deletions src/Gma.UserActivityMonitor/NativeMethods.cs
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Expand Up @@ -64,6 +64,12 @@ internal static class NativeMethods {
// {3C0F4548-C03F-4c4d-B9F2-237EDE686376}
public static Guid GUID_SESSION_USER_PRESENCE = new Guid(0x3c0f4548, 0xc03f, 0x4c4d, 0xb9, 0xf2, 0x23, 0x7e, 0xde, 0x68, 0x63, 0x76);

//
// Specifies if the system is entering or exiting 'away mode'.
// 98A7F580-01F7-48AA-9C0F-44352C29E5C0
//
public static Guid GUID_SYSTEM_AWAYMODE = new Guid(0x98A7F580, 0x01F7, 0x48AA, 0x9C, 0x0F, 0x44, 0x35, 0x2C, 0x29, 0xE5, 0xC0);

// Win32 decls and defs
//
public const int PBT_APMQUERYSUSPEND = 0x0000;
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107 changes: 87 additions & 20 deletions src/Services/UserActivityMonitorService.cs
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Expand Up @@ -76,7 +76,7 @@ public void Start() {
Logger.Instance.Log4.Info($"ActivityMonitor: Start");
Logger.Instance.Log4.Info($"ActivityMonitor: Keyboard/mouse input detection: {InputDetection}");
Logger.Instance.Log4.Info($"ActivityMonitor: Desktop unlock detection: {UnlockDetection}");
Logger.Instance.Log4.Info($"ActivityMonitor: Monitor Power detection: {UserPresenceDetection}");
Logger.Instance.Log4.Info($"ActivityMonitor: Power API User Presence Detection: {UserPresenceDetection}");
Logger.Instance.Log4.Info($"ActivityMonitor: Command: {ActivityCmd}");
Logger.Instance.Log4.Info($"ActivityMonitor: Debounce Time: {DebounceTime} seconds");

Expand All @@ -89,41 +89,108 @@ public void Start() {

internal void HandlePowerBroadcast(IntPtr wParam, IntPtr lParam) {

int pbt = wParam.ToInt32();
POWERBROADCAST_SETTING pbSetting = (POWERBROADCAST_SETTING)Marshal.PtrToStructure(lParam, typeof(POWERBROADCAST_SETTING));
var pbt = wParam.ToInt32();

// https://docs.microsoft.com/en-us/windows/win32/power/power-setting-guids
if (pbt == PBT_POWERSETTINGCHANGE && pbSetting.PowerSetting == GUID_SESSION_USER_PRESENCE) {
// BUGBUG: Data is just a byte and we're lucky the MSB has our value in it
switch (pbSetting.Data) {
case 0: // PowerUserPresent (0) - The user is providing input to the session.
_PresencePresumedTimer.Enabled = true;
this.Activity("PowerBroadcast: The user is providing input to the session");
break;

case 2: // PowerUserInactive(2) - The user activity timeout has elapsed with no interaction from the user.
_PresencePresumedTimer.Enabled = false;
Logger.Instance.Log4.Info($"ActivityMonitor: PowerBroadcast: The user activity timeout has elapsed with no interaction from the user.");
break;

default:
Logger.Instance.Log4.Error($"ActivityMonitor: PowerBroadcast: Unknown GUID_SESSION_USER_PRESENCE data {pbSetting.Data}.");
break;
}
switch (pbt) {
case PBT_POWERSETTINGCHANGE:
POWERBROADCAST_SETTING pbSetting = (POWERBROADCAST_SETTING)Marshal.PtrToStructure(lParam, typeof(POWERBROADCAST_SETTING));
if (pbSetting.PowerSetting == GUID_SESSION_USER_PRESENCE) {
// BUGBUG: Data is just a byte and we're lucky the MSB has our value in it
switch (pbSetting.Data) {
case 0: // PowerUserPresent (0) - The user is providing input to the session.
_PresencePresumedTimer.Enabled = true;
this.Activity("PowerBroadcast: The user is providing input to the session");
break;


case 2: // PowerUserInactive(2) - The user activity timeout has elapsed with no interaction from the user.
_PresencePresumedTimer.Enabled = false;
Logger.Instance.Log4.Info($"ActivityMonitor: PowerBroadcast: The user activity timeout has elapsed with no interaction from the user.");
break;

default:
Logger.Instance.Log4.Error($"ActivityMonitor: PowerBroadcast: Unknown GUID_SESSION_USER_PRESENCE data {pbSetting.Data}.");
break;
}
}
else if (pbSetting.PowerSetting == GUID_SYSTEM_AWAYMODE) {
// BUGBUG: Data is just a byte and we're lucky the MSB has our value in it
switch (pbSetting.Data) {
case 0: // 0x0 - The computer is exiting away mode.
this.Activity("PowerBroadcast: The computer is exiting away mode");
break;


case 1: // 0x1 - The computer is entering away mode.
_PresencePresumedTimer.Enabled = false;
Logger.Instance.Log4.Info($"ActivityMonitor: PowerBroadcast: The computer is entering away mode.");
break;

default:
Logger.Instance.Log4.Error($"ActivityMonitor: PowerBroadcast: Unknown GUID_SYSTEM_AWAYMODE data {pbSetting.Data}.");
break;
}
}
else if (pbSetting.PowerSetting == GUID_MONITOR_POWER_ON) {
// BUGBUG: Data is just a byte and we're lucky the MSB has our value in it
switch (pbSetting.Data) {
case 0: // 0x0 - The monitor is off.
_PresencePresumedTimer.Enabled = false;
this.Activity("PowerBroadcast: The monitor is off");
break;


case 1: // 0x1 - The monitor is on.
Logger.Instance.Log4.Info($"ActivityMonitor: PowerBroadcast: The monitor is on");
break;

default:
Logger.Instance.Log4.Error($"ActivityMonitor: PowerBroadcast: Unknown GUID_MONITOR_POWER_ON data {pbSetting.Data}.");
break;
}
}
break;

default:
Logger.Instance.Log4.Error($"ActivityMonitor: PowerBroadcast: Unknown PBT {pbt}.");
break;
}

}

private IntPtr _hUserPresence;
private IntPtr _hAwayMode;
private IntPtr _hMonitorPower;

private void StartMonitorPowerDetection() {
_hUserPresence = RegisterPowerSettingNotification(MainWindow.Instance.Handle,
ref GUID_SESSION_USER_PRESENCE,
DEVICE_NOTIFY_WINDOW_HANDLE);

_hAwayMode = RegisterPowerSettingNotification(MainWindow.Instance.Handle,
ref GUID_SYSTEM_AWAYMODE,
DEVICE_NOTIFY_WINDOW_HANDLE);

_hMonitorPower = RegisterPowerSettingNotification(MainWindow.Instance.Handle,
ref GUID_MONITOR_POWER_ON,
DEVICE_NOTIFY_WINDOW_HANDLE);
}

private void StopMonitorPowerDetection() {
if (_hUserPresence != null) {
UnregisterPowerSettingNotification(_hUserPresence);
_hUserPresence = (IntPtr)null;
}

if (_hAwayMode != null) {
UnregisterPowerSettingNotification(_hAwayMode);
_hAwayMode = (IntPtr)null;
}

if (_hMonitorPower != null) {
UnregisterPowerSettingNotification(_hMonitorPower);
_hMonitorPower = (IntPtr)null;
}
}

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