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.
- Must be zero.
New line size.
Returns a 32-bit value that specifies the previous line size.
The default setting for the line size is 1.
Minimum supported client
|Windows 2000 Professional [desktop apps only]|
Minimum supported server
|Windows 2000 Server [desktop apps only]|