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Merge pull request #243 from DarthAffe/development

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Fixed wrong ActiveWindow-Parameters
This commit is contained in:
Robert Beekman 2017-01-01 11:58:46 +01:00 committed by GitHub
commit 5f61ebe0f8
1 changed files with 71 additions and 11 deletions
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82
Artemis/Artemis/Utilities/ActiveWindowHelper.cs
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@ -21,13 +21,15 @@ namespace Artemis.Utilities
[DllImport("user32.dll")]
private static extern IntPtr GetWindowThreadProcessId(IntPtr hWnd, out uint processId);
#endregion
#region Constants
private const uint WINEVENT_OUTOFCONTEXT = 0;
private const uint EVENT_SYSTEM_FOREGROUND = 3;
private const uint WINEVENT_OUTOFCONTEXT = 0x0000;
private const uint EVENT_SYSTEM_FOREGROUND = 0x0003;
private const uint EVENT_OBJECT_NAMECHANGE = 0x800C;
private const uint EVENT_SYSTEM_MINIMIZEEND = 0x0017;
private const int MAX_TITLE_LENGTH = 256;
@ -37,7 +39,15 @@ namespace Artemis.Utilities
// DarthAffe 17.12.2016: We need to keep a reference to this or it might get collected by the garbage collector and cause some random crashes afterwards.
private static WinEventDelegate _activeWindowChangedDelegate;
private static IntPtr _winEventHook;
private static IntPtr _activeWindowEventHook;
private static WinEventDelegate _windowTitleChangedDelegate;
private static IntPtr _windowTitleEventHook;
private static WinEventDelegate _windowMinimizedChangedDelegate;
private static IntPtr _windowMinimizedEventHook;
private static IntPtr _activeWindow;
public static string ActiveWindowProcessName { get; private set; }
public static string ActiveWindowWindowTitle { get; private set; }
@ -49,6 +59,28 @@ namespace Artemis.Utilities
private static void ActiveWindowChanged(IntPtr hWinEventHook, uint eventType,
IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
UpdateForWindow(hwnd);
}
private static void WindowTitleChanged(IntPtr hWinEventHook, uint eventType,
IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
if (_activeWindow == hwnd)
UpdateForWindow(hwnd);
}
private static void WindowMinimizedChanged(IntPtr hWinEventHook, uint eventType,
IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
// DarthAffe 19.12.2016: We expect currently un-minimized windows to be active.
// DarthAffe 19.12.2016: The result of the API-function GetActiveWindow at this moment is 'idle' so we can't use this to validate this estimation.
UpdateForWindow(hwnd);
}
private static void UpdateForWindow(IntPtr hwnd)
{
_activeWindow = hwnd;
ActiveWindowProcessName = GetActiveWindowProcessName(hwnd) ?? string.Empty;
ActiveWindowWindowTitle = GetActiveWindowTitle(hwnd) ?? string.Empty;
}
@ -84,10 +116,23 @@ namespace Artemis.Utilities
{
try
{
if (_winEventHook != IntPtr.Zero) return;
if (_activeWindowEventHook == IntPtr.Zero)
{
_activeWindowChangedDelegate = ActiveWindowChanged;
_activeWindowEventHook = SetWinEventHook(EVENT_SYSTEM_FOREGROUND, EVENT_SYSTEM_FOREGROUND, IntPtr.Zero, _activeWindowChangedDelegate, 0, 0, WINEVENT_OUTOFCONTEXT);
}
_activeWindowChangedDelegate = ActiveWindowChanged;
_winEventHook = SetWinEventHook(EVENT_SYSTEM_FOREGROUND, EVENT_SYSTEM_FOREGROUND, IntPtr.Zero, _activeWindowChangedDelegate, 0, 0, WINEVENT_OUTOFCONTEXT);
if (_windowTitleEventHook == IntPtr.Zero)
{
_windowTitleChangedDelegate = WindowTitleChanged;
_windowTitleEventHook = SetWinEventHook(EVENT_OBJECT_NAMECHANGE, EVENT_OBJECT_NAMECHANGE, IntPtr.Zero, _windowTitleChangedDelegate, 0, 0, WINEVENT_OUTOFCONTEXT);
}
if (_windowMinimizedEventHook == IntPtr.Zero)
{
_windowMinimizedChangedDelegate = WindowMinimizedChanged;
_windowMinimizedEventHook = SetWinEventHook(EVENT_SYSTEM_MINIMIZEEND, EVENT_SYSTEM_MINIMIZEEND, IntPtr.Zero, _windowMinimizedChangedDelegate, 0, 0, WINEVENT_OUTOFCONTEXT);
}
}
catch { /* catch'em all - I don't want it to crash here */ }
}
@ -96,11 +141,26 @@ namespace Artemis.Utilities
{
try
{
if (_winEventHook == IntPtr.Zero) return;
if (_activeWindowEventHook != IntPtr.Zero)
{
UnhookWinEvent(_activeWindowEventHook);
_activeWindowChangedDelegate = null;
_activeWindowEventHook = IntPtr.Zero;
}
UnhookWinEvent(_winEventHook);
_activeWindowChangedDelegate = null;
_winEventHook = IntPtr.Zero;
if (_windowTitleEventHook != IntPtr.Zero)
{
UnhookWinEvent(_windowTitleEventHook);
_windowTitleChangedDelegate = null;
_windowTitleEventHook = IntPtr.Zero;
}
if (_windowMinimizedEventHook != IntPtr.Zero)
{
UnhookWinEvent(_windowMinimizedEventHook);
_windowMinimizedChangedDelegate = null;
_windowMinimizedEventHook = IntPtr.Zero;
}
}
catch { /* catch'em all - I don't want it to crash here */ }
}