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ShowScrollBar info  Overview  Group

The ShowScrollBar function shows or hides the specified scroll bar.

BOOL ShowScrollBar(

    HWND hWnd,

// handle of window with scroll bar

    int wBar,

// scroll bar flag

    BOOL bShow 

// scroll bar visibility flag

   );

Parameters

hWnd
Identifies a scroll bar control or a window with a standard scroll bar, depending on the value of the wBar parameter.
wBar
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 of 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
Specifies whether the scroll bar is shown or hidden. If this parameter is TRUE, the scroll bar is shown; otherwise, it is hidden.

Return Values

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.

See Also

EnableScrollBar 

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