MCM_GETMONTHDELTA message
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 send this message explicitly or by using the MonthCal_GetMonthDelta macro.
Parameters
-
wParam
- Must be zero.
-
lParam
- Must be zero.
Return value
If the month delta was previously set using the MCM_SETMONTHDELTA message, returns an INT value that represents the month calendar's current scroll rate. If the month delta was not previously set using the MCM_SETMONTHDELTA message, or the month delta was reset to the default, returns an INT value that represents the current number of months visible.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
|