private static void FindChildWindows(IntPtr windowHandle, WindowFinderEnumWindowsProcContext context, WindowInformation windowInformation)
{
var childWindowContext = new WindowFinderEnumChildWindowsProcContext(
context.NativeMethods,
context.ClassNameConstraint,
context.WindowTextConstraint,
windowInformation);
context.NativeMethods.EnumChildWindows(windowHandle, EnumChildWindowsCallback, childWindowContext);
context.Windows.AddRange(childWindowContext.Windows);
}
/// <remarks>Must be static because the delegate is passed to unmanaged code.</remarks>>
private static bool EnumWindowsCallback(IntPtr windowHandle, WindowFinderEnumWindowsProcContext context)
{
int processID = context.NativeMethods.GetWindowThreadProcessID(windowHandle);
if (processID == 0)
{
return(true);
}
if (context.OwnProcessIDConstraint.HasValue && processID == context.OwnProcessIDConstraint.Value)
{
return(true);
}
if (context.ProcessIDConstraint.HasValue && processID != context.ProcessIDConstraint.Value)
{
return(true);
}
var classNameResult = MatchClassName(context, windowHandle);
if (classNameResult == null)
{
return(true);
}
var windowTextResult = MatchWindowText(context, windowHandle);
if (windowTextResult == null)
{
return(true);
}
var windowInformation = new WindowInformation(
processID,
windowHandle,
classNameResult.Value,
windowTextResult.Value,
null);
if (classNameResult.IsMatch && windowTextResult.IsMatch)
{
context.Windows.Add(windowInformation);
}
if (context.IncludeChildWindows)
{
FindChildWindows(windowHandle, context, windowInformation);
}
return(true);
}
bool IWin32WindowsNativeMethods.EnumWindows(EnumWindowsProc enumWindowsCallback, WindowFinderEnumWindowsProcContext context)
{
ArgumentUtility.CheckNotNull("enumWindowsCallback", enumWindowsCallback);
ArgumentUtility.CheckNotNull("context", context);
return(EnumWindows(enumWindowsCallback, context));
}
private static extern bool EnumWindows(EnumWindowsProc lpEnumFunc, WindowFinderEnumWindowsProcContext data);
