/// <summary>
/// Finds the "main" Cassini window, which will respond to WM_QUERYENDSESION and WM_CLOSE.
/// </summary>
/// <param name="processId">A Cassini process ID</param>
/// <returns>The IntPtr handle to the Cassini window</returns>
static IntPtr FindCassiniWindow(int processId)
{
IntPtr result = IntPtr.Zero;
NativeMethods.EnumThreadWindowsCallback callback = (handle, extraP) =>
{
int num;
NativeMethods.GetWindowThreadProcessId(handle, out num);
if (num == processId)
{
// Heuristic: Cassini window titles start with "ASP.NET Development Server"
int length = NativeMethods.GetWindowTextLength(handle) + 1;
StringBuilder b = new StringBuilder(length);
NativeMethods.GetWindowText(handle, b, length);
if (b.ToString().StartsWith("ASP.NET Development Server"))
{
result = handle;
return false;
}
}
return true;
};
// Search through all windows
NativeMethods.EnumWindows(callback, IntPtr.Zero);
// Reference the callback to stop it being GC'd before this point.
GC.KeepAlive(callback);
return result;
}
public IntPtr FindMainWindow(int processId) {
bestHandle = (IntPtr)0;
this.processId = processId;
NativeMethods.EnumThreadWindowsCallback callback = new NativeMethods.EnumThreadWindowsCallback(this.EnumWindowsCallback);
NativeMethods.EnumWindows(callback, IntPtr.Zero);
GC.KeepAlive(callback);
return bestHandle;
}
private IntPtr FindIEServerWindowHandle(IntPtr ieFrameWindowHandle)
{
this._hWndFromEnumCallback = IntPtr.Zero;
if (!ieFrameWindowHandle.Equals(IntPtr.Zero))
{
NativeMethods.EnumThreadWindowsCallback callback = null;
callback = new NativeMethods.EnumThreadWindowsCallback(this.EnumChildWindowsCallback);
NativeMethods.EnumChildWindows(new HandleRef(this, ieFrameWindowHandle), callback, ieFrameWindowHandle);
GC.KeepAlive(callback);
}
return(this._hWndFromEnumCallback);
}
/// <summary>
/// Returns an enumerable of windows, filtered by specified predicate match.
/// </summary>
/// <param name="match">The predicate to filter by.</param>
public static IEnumerable <Window> GetWindows(Func <Window, bool> match = null)
{
var windows = new List <Window>();
NativeMethods.EnumThreadWindowsCallback enumWindows = (hwnd, lParam) =>
{
var window = new Window(hwnd);
if (match == null || match(window))
{
windows.Add(window);
}
return(true);
};
UnsafeNativeMethods.EnumWindows(enumWindows, IntPtr.Zero);
return(windows);
}
/// <summary>
/// Returns an enumerable of child windows, filtered by specified predicate match.
/// </summary>
/// <param name="parentWindow">The parent window.</param>
/// <param name="match">The predicate to filter by.</param>
public static IEnumerable <Window> GetChildWindows(Window parentWindow, Func <Window, bool> match = null)
{
if (!parentWindow.Exists)
{
return(new Window[0]);
}
var windows = new List <Window>();
NativeMethods.EnumThreadWindowsCallback enumWindows = (hwnd, lParam) =>
{
var window = new Window(hwnd);
if (match == null || match(window))
{
windows.Add(window);
}
return(true);
};
UnsafeNativeMethods.EnumChildWindows(new HandleRef(parentWindow, parentWindow.Handle), enumWindows, IntPtr.Zero);
return(windows);
}
public static extern bool EnumChildWindows(
HandleRef hWndParent,
NativeMethods.EnumThreadWindowsCallback lpEnumFunc,
IntPtr extraData
);
public static extern bool EnumWindows(
NativeMethods.EnumThreadWindowsCallback callback,
IntPtr extraData
);
