/// <summary>
/// Returns all matching windows with a given window filter.
/// </summary>
/// <param name="filter">The window filter</param>
/// <returns>A generic collection with IntPtr objects (The window handles)</returns>
private static IEnumerable <IntPtr> FindWindows(WinApi.EnumWindowProc filter)
{
var windowHandles = new List <IntPtr>();
WinApi.EnumWindows(delegate(IntPtr hWnd, IntPtr param)
{
if (filter(hWnd, param))
{
windowHandles.Add(hWnd);
}
return(true);
}, IntPtr.Zero);
return(windowHandles);
}
/// <summary>
/// Returns a list of child windows (window handles) of a given parent window
/// </summary>
/// <param name="parent">The window handle of the parent window</param>
/// <returns>The list with child window handles</returns>
public static List <IntPtr> GetChildWindows(IntPtr parent)
{
var result = new List <IntPtr>();
var listHandle = GCHandle.Alloc(result);
try
{
var childProc = new WinApi.EnumWindowProc(EnumWindow);
WinApi.EnumChildWindows(parent, childProc, GCHandle.ToIntPtr(listHandle));
}
finally
{
if (listHandle.IsAllocated)
{
listHandle.Free();
}
}
return(result);
}
