TBM_GETPAGESIZE
The
TBM_GETPAGESIZE message retrieves the size of the page for a trackbar. The page
size affects how much the slider moves for the TB_PAGEUP and TB_PAGEDOWN
notification messages.
TBM_GETPAGESIZE
wParam = 0;
lParam = 0;
Return Values
Returns a
32-bit value that specifies the size of a page for the trackbar.