Closes a custom toolbar. You can send this message explicitly or by using the Editor_ToolbarClose inline function.
(UINT)wParam = nToolbarID
Specifies the toolbar to close. This is the return value from the EE_TOOLBAR_OPEN message.
If the message succeeds and the toolbar state has been changed, the return value is TRUE. If the message fails or the toolbar state has not been changed, the return value is FALSE.
Supported on EmEditor Professional Version 7.00 or later.