public class ActiveWindow
{
public delegate void ActiveWindowChangedHandler(object sender, String windowHeader,IntPtr hwnd);
public event ActiveWindowChangedHandler ActiveWindowChanged;
[DllImport("user32.dll")]
static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll")]
static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);
delegate void WinEventDelegate(IntPtr hWinEventHook, uint eventType,
IntPtr hwnd, int idObject, int idChild, uint dwEventThread,
uint dwmsEventTime);
const uint WINEVENT_OUTOFCONTEXT = 0;
const uint EVENT_SYSTEM_FOREGROUND = 3;
[DllImport("user32.dll")]
static extern bool UnhookWinEvent(IntPtr hWinEventHook);
[DllImport("user32.dll")]
static extern IntPtr SetWinEventHook(uint eventMin, uint eventMax,
IntPtr hmodWinEventProc, WinEventDelegate lpfnWinEventProc,
uint idProcess, uint idThread, uint dwFlags);
IntPtr m_hhook;
private WinEventDelegate _winEventProc;
public ActiveWindow()
{
_winEventProc = new WinEventDelegate(WinEventProc);
m_hhook = SetWinEventHook(EVENT_SYSTEM_FOREGROUND,
EVENT_SYSTEM_FOREGROUND, IntPtr.Zero, _winEventProc,
0, 0, WINEVENT_OUTOFCONTEXT);
}
void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd,
int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
if (eventType == EVENT_SYSTEM_FOREGROUND)
{
if (ActiveWindowChanged != null)
ActiveWindowChanged(this,GetActiveWindowTitle(hwnd),hwnd);
}
}
private string GetActiveWindowTitle(IntPtr hwnd)
{
StringBuilder Buff = new StringBuilder(500);
GetWindowText(hwnd, Buff, Buff.Capacity);
return Buff.ToString();
}
~ActiveWindow()
{
UnhookWinEvent(m_hhook);
}
}
когда я переключаюсь между активными окнами, я получаю обратный вызов
но когда я максимизирую свернутое окно, мне не перезванивают,
Я найду работу, чтобы решить эту проблему, но я ищу лучшее решение
любая помощь будет оценена.