HELP - The child-window can not show on the screen.

cocos2d-x C++
#1

I would like to create a child-window in the Win32 platform for cocos2d-x 2.1.5,
but it can not show on the screen.
Any ideas? thanks!

using the following function:
CreateWindowEx(WS_EX_TOPMOST,
L“Edit”,
NULL,
WS_CHILD|WS_VISIBLE|WS_BORDER,
0,0,
100,20,
CCEGLView::sharedOpenGLView()->getHWnd(),
NULL,
NULL,
NULL);

the child-window can be created successfuly, but can not appare on the top, even if using the ShowWindow() function.