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Shows or hides a tab.
virtual BOOL ShowTab(
    CWnd* pBar,
    BOOL bShow,
    BOOL bDelay,
    BOOL bActivate
);
Parameters
- [in] pBar 
 A pointer to the pane to show or hide.
- [in] bShow 
 TRUE to show the pane; FALSE to hide the pane.
- [in] bDelay 
 TRUE to delay the adjustment of the tab layout; otherwise, FALSE.
- [in] bActivate 
 TRUE to make the tab the active tab; otherwise, FALSE.
Return Value
TRUE if the tab was either shown or hidden successfully; otherwise, FALSE.
Remarks
When you call this method, a pane is either shown or hidden, depending on the value of the bShow parameter. If you hide a tab and it is the last visible tab in the underlying tab window, the tabbed pane is hidden. If you show a tab when there were previously no tabs visible, the tabbed pane is shown.
Requirements
Header: afxBaseTabbedPane.h