Article ID: 235355 - Last Review: November 21, 2006 - Revision: 2.1

PRB: CMonthCalCtl::GetCurSel(CTime) Returns Wrong Value

System TipThis article applies to a different operating system than the one you are using. Article content that may not be relevant to you is disabled.
This article was previously published under Q235355
Expand all | Collapse all

SYMPTOMS

When you use the CMonthCalCtrl::GetCurSel(CTime) to get the date selected from the Month Calendar Common control, the date in the CTime class is incorrect.

CAUSE

MFC's implementation of CMonthCalCtrl::GetCurSel() for the CTime class calls SendMessage(MCM_GETCURSEL, &sysTime) where sysTime is a SYSTEMTIME structure. The MCM_GETCURSEL message does not fill in the hours, minutes, and seconds part of the sysTime Structure with valid values. However, the constructor for CTime class takes these values into consideration, so the date in CTime class is incorrect.

RESOLUTION

The workaround is to use the CMonthCalCtrl::GetCurSel(SYSTEMTIME*) version of GetCurSel for this class to get the correct date. The code will look like the following example:
   SYSTEMTIME sysTime;

   m_MonthCal.GetCurSel(&sysTime);

   sysTime.wHour = sysTime.wMinute = sysTime.wSecond =    sysTime.wMilliseconds = 0;
  
   CTime l_time(sysTime);
				

STATUS

This behavior is by design.

APPLIES TO
  • Microsoft Foundation Class Library 4.2, when used with:
    • Microsoft Visual C++ 6.0 Enterprise Edition
    • Microsoft Visual C++ 6.0 Professional Edition
    • Microsoft Visual C++, 32-bit Learning Edition 6.0
Keywords: 
kbdatetime kbcmnctrls kbmonthcalctrl kbprb kbctrl KB235355