TBM_GETPAGESIZE Overview  Group

The TBM_GETPAGESIZE message retrieves the number of logical positions the trackbar’s slider moves in response to keyboard input, such as the PAGE UP or PAGE DOWN 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.

TBM_GETPAGESIZE
wParam = 0; 

lParam = 0; 

 

Return Values

Returns a 32-bit value that specifies the page size for the trackbar.

Remarks

The trackbar also sends the TB_PAGEUP and TB_PAGEDOWN notification messages to its parent window when it receives keyboard or mouse input that scrolls the page.

See Also

TBM_SETPAGESIZE