//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// Retrieves the bounding rectangle of the Status Bar Pane.
static internal Rect GetBoundingRectangle(IntPtr hwnd, int item)
{
if (!WindowsFormsHelper.IsWindowsFormsControl(hwnd))
{
return(XSendMessage.GetItemRect(hwnd, NativeMethods.SB_GETRECT, item));
}
else
{
Accessible acc = null;
if (Accessible.AccessibleObjectFromWindow(hwnd, NativeMethods.OBJID_CLIENT, ref acc) != NativeMethods.S_OK || acc == null)
{
return(Rect.Empty);
}
else
{
// OLEACC's Win32 proxy does use a 1, 2, 3... scheme, but the [....]
// controls in some cases supply their own children, using a different scheme.
// Using the "ByIndex" approach avoids having to know what the underlying
// object's idChild scheme is.
acc = Accessible.GetFullAccessibleChildByIndex(acc, item);
if (acc == null)
{
return(Rect.Empty);
}
else
{
return(acc.Location);
}
}
}
}
internal ProxySimple CreateStatusBarPane(int index)
{
// Use the Accessible object if this is a [....] control. Only [....] StatusBars
// can have children.
Accessible accChild = null;
if (_acc != null)
{
// OLEACC's Win32 proxy does use a 1, 2, 3... scheme, but the [....]
// controls in some cases supply their own children, using a different scheme.
// Using the "ByIndex" approach avoids having to know what the underlying
// object's idChild scheme is.
accChild = Accessible.GetFullAccessibleChildByIndex(_acc, index);
if (accChild != null && accChild.Role != AccessibleRole.PushButton)
{
// [....] toolbars have full IAccessibles for their children, but
// return the overall hwnd; treat those same as regular items.
// We only want to special-case actual child hwnds for overriding.
IntPtr hwndChild = accChild.Window;
if (hwndChild == IntPtr.Zero || hwndChild == _hwnd)
{
hwndChild = GetChildHwnd(_hwnd, accChild.Location);
}
if (hwndChild != IntPtr.Zero && hwndChild != _hwnd)
{
// We have an actual child hwnd.
return(new WindowsStatusBarPaneChildOverrideProxy(hwndChild, this, index));
}
}
}
return(new WindowsStatusBarPane(_hwnd, this, index, accChild));
}