// Use to retrieve MCGIF_NAME only.
private bool GetCalendarGridInfoText(ref ComCtl32.MCGRIDINFO gridInfo)
{
Debug.Assert(
gridInfo.dwFlags == 0,
"gridInfo.dwFlags should be 0 when calling GetCalendarGridInfoText");
gridInfo.dwFlags = ComCtl32.MCGIF.NAME;
return(_owner.SendMessage((int)ComCtl32.MCM.GETCALENDARGRIDINFO, 0, ref gridInfo) != IntPtr.Zero);
}
private bool GetCalendarGridInfo(ref ComCtl32.MCGRIDINFO gridInfo)
{
// Do not use this if gridInfo.dwFlags contains MCGIF_NAME;
// use GetCalendarGridInfoText() instead.
Debug.Assert(
(gridInfo.dwFlags & ComCtl32.MCGIF.NAME) == 0,
"Param dwFlags contains MCGIF_NAME, use GetCalendarGridInfoText() to retrieve the text of a calendar part.");
gridInfo.dwFlags &= ~ComCtl32.MCGIF.NAME;
return(_owner.SendMessage((int)ComCtl32.MCM.GETCALENDARGRIDINFO, 0, ref gridInfo) != IntPtr.Zero);
}
private bool GetCalendarGridInfoText(ComCtl32.MCGIP dwPart, int calendarIndex, int row, int column, out string text)
{
const int nameLength = 128;
ComCtl32.MCGRIDINFO gridInfo = new ComCtl32.MCGRIDINFO();
gridInfo.cbSize = (uint)Marshal.SizeOf(gridInfo);
gridInfo.dwPart = dwPart;
gridInfo.iCalendar = calendarIndex;
gridInfo.iCol = column;
gridInfo.iRow = row;
gridInfo.pszName = new string('\0', nameLength + 2);
gridInfo.cchName = (uint)gridInfo.pszName.Length - 1;
bool result = GetCalendarGridInfoText(ref gridInfo);
text = gridInfo.pszName;
return(result);
}
private bool GetCalendarGridInfo(
ComCtl32.MCGIF dwFlags,
ComCtl32.MCGIP dwPart,
int calendarIndex,
int row,
int column,
out RECT rectangle,
out Kernel32.SYSTEMTIME endDate,
out Kernel32.SYSTEMTIME startDate)
{
Debug.Assert(
(dwFlags & ~(ComCtl32.MCGIF.DATE | ComCtl32.MCGIF.RECT)) == 0,
"GetCalendarGridInfo() should be used only to obtain Date and Rect,"
+ "dwFlags has flag bits other that MCGIF_DATE and MCGIF_RECT");
ComCtl32.MCGRIDINFO gridInfo = new ComCtl32.MCGRIDINFO();
gridInfo.dwFlags = dwFlags;
gridInfo.cbSize = (uint)Marshal.SizeOf(gridInfo);
gridInfo.dwPart = dwPart;
gridInfo.iCalendar = calendarIndex;
gridInfo.iCol = column;
gridInfo.iRow = row;
bool result;
try
{
result = GetCalendarGridInfo(ref gridInfo);
rectangle = gridInfo.rc;
endDate = gridInfo.stEnd;
startDate = gridInfo.stStart;
}
catch
{
rectangle = new RECT();
endDate = new Kernel32.SYSTEMTIME();
startDate = new Kernel32.SYSTEMTIME();
result = false;
}
return(result);
}
