Sets the number of logical positions the trackbar's slider moves in response to keyboard input, such as the or keys, or mouse input, such as clicks in the trackbar's channel. The logical positions are the integer increments in the trackbar's range of minimum to maximum slider positions.
- Must be zero.
New page size.
Returns a 32-bit value that specifies the previous page size.
Minimum supported client
|Windows Vista [desktop apps only]|
Minimum supported server
|Windows Server 2003 [desktop apps only]|