/// <summary>
/// Enumerates all the child windows of a parent window
/// </summary>
/// <param name="parentHWnd">the handle to the parent window</param>
/// <returns>list of WindowInfo structures containing the data of the child windows</returns>
public static WindowInfo[] EnumChildWindows(IntPtr parentHWnd)
{
System.Collections.ArrayList childWindowArray = new System.Collections.ArrayList (10);
IntPtr lastChildHWnd = FindWindowExA (parentHWnd, IntPtr.Zero, null, null);
while (lastChildHWnd != IntPtr.Zero)
{
childWindowArray.Add (GetWindowInfo (lastChildHWnd));
lastChildHWnd = FindWindowExA (parentHWnd, lastChildHWnd, null, null);
}
WindowInfo[] returnArray = new WindowInfo[childWindowArray.Count];
for (int i = 0; i < childWindowArray.Count; i++)
{
returnArray[i] = (WindowInfo) childWindowArray[i];
}
return returnArray;
}
/// <summary>
/// Matches a specific window environment against a specified window and its childs
/// -- Might throw a HolodeckExceptions.MismatchingWindowEnvironmentException
/// </summary>
/// <param name="info">the window info to match against the window environment</param>
/// <param name="environment">the window environment to match against</param>
/// <returns>the handler to the matched window (specified by the environment), or null if no such window was found</returns>
protected static IntPtr MatchEnvironment(WindowInfo info, WindowEnvironment environment)
{
IntPtr searchedHandle = IntPtr.Zero;
WindowInfo[] array = EnumChildWindows (info.hWnd);
bool matchTitle = (!environment.checkTitle ||
(environment.checkTitle && (info.title == environment.title)));
bool matchChildSize = (((environment.childs == null) && (array.Length == 0)) ||
(environment.childs.Length == array.Length));
if (matchTitle &&
matchChildSize)
{
if (environment.searchedHandle)
{
// We might have found our window, but we also need to check the child environments.
// Store our handle in searchedHandle for now.
searchedHandle = info.hWnd;
}
if (environment.childs != null)
{
for (int i = 0; i < array.Length; i++)
{
IntPtr retHandle = MatchEnvironment (array[i], environment.childs[i]);
// MatchEnvironment might throw an exception, but we don't need to worry about it here
if (retHandle != IntPtr.Zero)
{
searchedHandle = retHandle;
}
}
}
// If we got here, that means that all the child environments matched as well.
// searchHandle is not IntPtr.Zero if we've found our window.
return searchedHandle;
}
else
{
// We need to throw this to differentiate from matching sub-environments that do not contain the searched window handle.
throw new HolodeckExceptions.MismatchingWindowEnvironmentException ("The window doesn't match the specified environment");
}
}
/// <summary>
/// Searches for a label containing the specified string in a given window and in all its child windows
/// </summary>
/// <param name="info">the WindowInfo containing the handle to a window</param>
/// <param name="labelSubString">the string to look for in the labels</param>
/// <returns>the full text of the label if it was found, or string.Empty otherwise</returns>
protected static string SearchForLabel(WindowInfo info, string labelSubString)
{
if (info.title.IndexOf (labelSubString) != -1)
{
// We've found the specified label
return info.title;
}
WindowInfo[] array = EnumChildWindows (info.hWnd);
foreach (WindowInfo tempInfo in array)
{
string title = SearchForLabel (tempInfo, labelSubString);
if (title != string.Empty)
{
// One of our child window was the specified label
return title;
}
}
// None of our child window had the specified label
return string.Empty;
}
