MonthCal_GetMonthDelta macro (commctrl.h)

Retrieves the scroll rate for a month calendar control. The scroll rate is the number of months that the control moves its display when the user clicks a scroll button. You can use this macro or send the MCM_GETMONTHDELTA message explicitly.

Syntax

INT MonthCal_GetMonthDelta(
   HWND hmc
);

Parameters

hmc

Type: HWND

Handle to a month calendar control.

Return value

Type: INT

If the month delta was previously set using the MonthCal_SetMonthDelta macro, returns an INT value that represents the month calendar's current scroll rate. If the month delta was not previously set using the MonthCal_SetMonthDelta macro, or the month delta was reset to the default, returns an INT value that represents the current number of months visible.

Requirements