Applies to: desktop apps only

The ShowScrollBar function shows or hides the specified scroll bar.

Syntax

BOOL ShowScrollBar(
  __in  HWND hWnd,
  __in  int wBar,
  __in  BOOL bShow
);

Parameters

hWnd [in]

Type: HWND

Handle to a scroll bar control or a window with a standard scroll bar, depending on the value of the wBar parameter.

wBar [in]

Type: int

Specifies the scroll bar(s) to be shown or hidden. This parameter can be one of the following values.

Value	Meaning
SB_BOTH	Shows or hides a window's standard horizontal and vertical scroll bars.
SB_CTL	Shows or hides a scroll bar control. The hwnd parameter must be the handle to the scroll bar control.
SB_HORZ	Shows or hides a window's standard horizontal scroll bars.
SB_VERT	Shows or hides a window's standard vertical scroll bar.

 

bShow [in]

Type: BOOL

Specifies whether the scroll bar is shown or hidden. If this parameter is TRUE, the scroll bar is shown; otherwise, it is hidden.

Return value

Type: BOOL

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

You should not call this function to hide a scroll bar while processing a scroll bar message.

Requirements

See also

EnableScrollBar

Send comments about this topic to Microsoft

Build date: 3/6/2012