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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

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Commctrl.h

 

 

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