BCGControlBar Pro for MFC
void CBCGPToolBoxEx::EnableSearchBox ( BOOL  bEnable = TRUE,
LPCTSTR  lpszPrompt = NULL,
LPCTSTR  lpszOutOfFilter = NULL,
BOOL  bSimplifiedIcon = FALSE 
)

Shows or hides a search box.

Call this method to show or hide the search box located at the top of toolbox. When user types an item name or a part of item name, the toolbox displays only those items that match search criteria.

Parameters
bEnableTRUE - show search box; FALSE - hide search box.
lpszPromptSpecifies a prompt displayed in the box.
lpszOutOfFilterSpecifies a text displayed in the toolbox when toolbox is empty (no items that match search criteria).
bSimplifiedIconSpecifies whether search box icon has a simpliflied look.