TBM_SETLINESIZE message

Sets the number of logical positions the trackbar's slider moves in response to keyboard input from the arrow keys, such as the or keys. The logical positions are the integer increments in the trackbar's range of minimum to maximum slider positions.

Parameters

wParam
Must be zero.
lParam

New line size.

Return value

Returns a 32-bit value that specifies the previous line size.

Remarks

The default setting for the line size is 1.

The trackbar also sends a WM_HSCROLL or WM_VSCROLL message with the TB_LINEUP and TB_LINEDOWN notification codes to its parent window when the user presses the arrow keys.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Commctrl.h

See also

TBM_GETLINESIZE

 

 

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