C / C++ / MFC

Rajkumar R wrote:

And I found a good prerequisite [^] recently.

Ashish Chauhan wrote:

IDC_DATETIMEPICKER6),DTM_SETFORMAT,(WPARAM

Ashish Chauhan wrote:

BTW it's Non MFC Application.

SYSTEMTIME st;
GetSystemTime(&st);
st.wDayofWeek += 1;

Case IDC_BUTTON1:
{
st.wDayOfWeek += 1;
BOOL a =DateTime_SetSystemtime(GetDlgItem(hdlg,IDC_DATETIMEPICKER6),GDT_VALID, &st);

TCHAR lpszFormat3[MAX_PATH] = "hh':'mm 'every' dddd";
SendMessage(GetDlgItem(hdlg,IDC_DATETIMEPICKER6),DTM_SETFORMAT,(WPARAM) wParam,(LPARAM) (LPCTSTR) lpszFormat3);
}

//Thanks to Rehen, as I'm using a portion of his idea here.
//Function which will find the next day of the week
void NextDayOfWeek(const SYSTEMTIME& st, SYSTEMTIME *calculatedTime)
{
     FILETIME ft;
     
    //convert system time to file time
     SystemTimeToFileTime(&st, &ft);
    
     ULARGE_INTEGER nenoSeconds, nenoseconds_in_a_day;;
     
     nenoseconds_in_a_day.QuadPart = 24*60*60*1000;
     nenoseconds_in_a_day.QuadPart *= 10000;
     nenoSeconds.HighPart= ft.dwHighDateTime;
     nenoSeconds.LowPart= ft.dwLowDateTime;

     //Increment one day
     nenoSeconds.QuadPart += nenoseconds_in_a_day.QuadPart;

     ft.dwHighDateTime = nenoSeconds.HighPart;
     ft.dwLowDateTime = nenoSeconds.LowPart;


     //convert it back to system time
     FileTimeToSystemTime(&ft, calculatedTime);
}


case IDC_BUTTON1:
{
	SYSTEMTIME myTime, ans;
	HWND hdt;
	
	GetDlgItem(IDC_DATETIMEPICKER6, &hdt);

	//put your code to format the string here!       

	//Get the info stored in the CDateTimeCtrl and store it at &myTime.
        if(DateTime_GetSystemtime(hdt, &myTime) == GDT_VALID)
	{
		//Call the function, which will calculate and store the next day of week at &ans.
		NextDayOfWeek(myTime, &ans);
		
		//send a message to the control to set the system time from &ans!
		::SendMessage(hdt, (UINT)DTM_SETSYSTEMTIME, (WPARAM)(DWORD)GDT_VALID, (LPARAM)(LPSYSTEMTIME)&ans);

	}
}