// OnEventSystemMenuPopupStart - process an EventSystemMenuPopupStart WinEvent.
private void OnEventSystemMenuPopupStart(int eventId, IntPtr hwnd, int idObject, int idChild, uint eventTime)
{
Accessible acc = Accessible.Create(hwnd, idObject, idChild);
if (acc == null)
{
return;
}
HandleFocusChange(hwnd, acc, idObject, idChild, eventTime);
}
// OnEventObjectFocus - process an EventObjectFocus WinEvent.
private void OnEventObjectFocus(int eventId, IntPtr hwnd, int idObject, int idChild, uint eventTime)
{
Accessible acc = Accessible.Create(hwnd, idObject, idChild);
if (acc == null)
{
return;
}
// Keep track of last focused non-menu item, so we can restore focus when we leave menu mode
if (!_fInMenu)
{
_accLastBeforeMenu = acc;
_hwndLastBeforeMenu = hwnd;
_idLastObject = idObject;
_idLastChild = idChild;
}
HandleFocusChange(hwnd, acc, idObject, idChild, eventTime);
}
// OnEventSystemCaptureEnd - process an EventSystemCaptureEnd WinEvent.
private void OnEventSystemCaptureEnd(int eventId, IntPtr hwnd, int idObject, int idChild, uint eventTime)
{
// Deal only with Combolbox dropdowns...
if (Accessible.IsComboDropdown(hwnd))
{
SafeNativeMethods.GUITHREADINFO guiThreadInfo = new SafeNativeMethods.GUITHREADINFO();
if (!Misc.GetGUIThreadInfo(0, ref guiThreadInfo))
{
return;
}
Accessible acc = Accessible.Create(guiThreadInfo.hwndFocus, UnsafeNativeMethods.OBJID_CLIENT, 0);
if (acc == null)
{
return;
}
HandleFocusChange(hwnd, acc, idObject, idChild, eventTime);
}
}
// OnEventSystemCaptureStart - process an EventSystemCaptureStart WinEvent.
private void OnEventSystemCaptureStart(int eventId, IntPtr hwnd, int idObject, int idChild, uint eventTime)
{
// Deal only with Combolbox dropdowns...
if (Accessible.IsComboDropdown(hwnd))
{
// Need to get id of focused item...
try
{
IntPtr i = Misc.SendMessageTimeout(NativeMethods.HWND.Cast(hwnd), UnsafeNativeMethods.LB_GETCURSEL, IntPtr.Zero, IntPtr.Zero);
Accessible acc = Accessible.Create(hwnd, UnsafeNativeMethods.OBJID_CLIENT, i.ToInt32() + 1);
if (acc == null)
{
return;
}
HandleFocusChange(hwnd, acc, idObject, idChild, eventTime);
}
catch (TimeoutException)
{
// Ignore
}
}
}
