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I use the code like
COleDateTime dt(nYear,nMonth,nDay,nHour,nMin,nSec);;
dt.Format(%d %B %Y - %X);
for display 03 September 2007 - 12:49:38
if the year is less than 1899 . It will lead the assertion
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what happens if you run these code?
COleDateTime mytime(1996,1,1,0,0,0);
COleDateTime mytime2(1600,3,31,15,30,10);
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Viknaraj R wrote: if the year is less than 1899 . It will lead the assertion
So what's the problem? It's doing exactly what it is supposed to. A value of 1.0 (COleDateTime's internal value) represents 31-Dec-1899 00:00:00. A value of -365.0 represents 30-Dec-1898 00:00:00.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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DavidCrow,
Do you know what's up with this? Am I missing some reason that it would work fine for me?
I'm on VS2005, SP1 - where the OP says it fails 
Thanks,
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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With VS6, COleDateTime behaves exactly as documented.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Heh. Most things do. I know the class has been changed since that version but the OP
claims it works on VC6 and not on 2005. I'm not buying it 
Thanks,
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Mark Salsbery wrote: I know the class has been changed since that version...
Yes, and was apparently not received well. See here for more. Perhaps you have the patch and the OP does not.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Interesting link, thanks.
I guess all I can say is that it still works as documented. I see no documentation that states
years < 1900 will fail. I have installed no patches or hotfixes....it must have been rolled into SP1.
When I used Borland/OWL I needed a datetime class that I could use into the future (persisted
in database) so I stumbled across COleDateTime. I ripped the code out of MFC 4 and renamed it
to TOleDateTime (I had MSDN and I knew I was migrating to MFC at that point). I had my own
little fixes in there to get it to work for the range of dates it's supposed to work with,
along with some other known issues at the time (that I no longer remember).
I used that class up until about 6 months ago, when I accidentally stumbled across
some link or text about it being "fixed". I again ripped the code and temporarily renamed it
to the old TOleDateTime, which I still used. It worked great...TOleDateTime is now gone and
I use the ATL COleDateTime. LOL Interesting story? I think not
Whatever - it works as advertised documented for me.
Thanks man!
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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What does the "T" stand for in Borland's classes?
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Viknaraj R wrote: if the year is less than 1899 . It will lead the assertion
I get no assertion with this:
COleDateTime dt(1600,3,31,15,30,10);
CString datetimestr = dt.Format(_T("%d %B %Y - %X"));
From the docs: "The COleDateTime class handles dates from 1 January 100 – 31 December 9999"
Are you sure something isn't wrong somewhere else?
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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COleDateTime dt(1600,3,31,15,30,10);
CString datetimestr = dt.Format(_T("%d %B %Y - %X"));
I run the same code that cause the error in visual studio 2005 but in vc6 it works.
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I was testing on VS 2005 and it works. You've included ATLComTime.h, right?
You should be able to tell from the assertion why it's not working.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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hi
_tcsftime(lpszTemp, strDate.GetLength(), pFormat, &tmTemp) has an assertion tm_year >= 0 so for every year less than 1900 it will throw assertion
////////////////////////////////////////////////////////////////////////
IN COleDateTime::Format(LPCTSTR pFormat) follwing Code is there
struct tm tmTemp;
tmTemp.tm_sec = ud.st.wSecond;
tmTemp.tm_min = ud.st.wMinute;
tmTemp.tm_hour = ud.st.wHour;
tmTemp.tm_mday = ud.st.wDay;
tmTemp.tm_mon = ud.st.wMonth - 1;
tmTemp.tm_year = ud.st.wYear - 1900;
tmTemp.tm_wday = ud.st.wDayOfWeek;
tmTemp.tm_yday = ud.wDayOfYear - 1;
tmTemp.tm_isdst = 0;
CString strDate;
LPTSTR lpszTemp = strDate.GetBufferSetLength(256);
_tcsftime(lpszTemp, strDate.GetLength(), pFormat, &tmTemp);
////////////////////////////////////////////////////////////////////////
Viknaraj
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I just traced into that method with the same code.
Although tmTemp.tm_year is negative at the call to _tcsftime(), it still formats a proper string.
No assertion.
Also, you didn't show any code that has ASSERT in it.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Thanks for your valuable cooperation. The follwing code shows is assertion message box
File : strftime.c
Line:783
Expression :(timeptr->tm_year>=0)
case('Y'): /* year w/ century */
{
assertion is occured b>_VALIDATE_RETURN( ( timeptr->tm_year >=0 ), EINVAL, FALSE)
temp = (((timeptr->tm_year/100)+19)*100) +(timeptr->tm_year%100);
/* pass alternate_form as the no leading zeros flag */
_store_num(temp, 4, string, left, alternate_form);
break;
}
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It seems years <1900 do not work (for Format()) in VC 6. In VC 8 it works fine.
I'm not sure what else to tell you besides it works as documented.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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In my SDI application (VC 2003), I get the start point from LButton Down and eEnd point from LButton Up and draw a line using MoveTo and LineTo. I add the line info (from and to points) onto a CTypePtrArray list.
All I want is if I hover over a drawn line, I should have a tooltip giving me
info pertaining to that line.
I think, the approach that I should follow is generate a small region surrounding( a rectangle) the line and if the mouse hovers over that area, I run through the Line array list and see if the current mouse position is with the specified area of a line and if yes display the tooltip info about that line.
Could anybody guide me with respect to the above requirment?
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I dont think I can do the same as in the example that was found in the link that WhiteSky has posted.
I can assign tooltip to controls on a dialog but I dont think I can assign tooltip info to a line which I draw and then display it when I hover over that line.
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There are three parts to your question...
1/ when am a vaguely near the line?
You can do this by making a bounding rectangle from the end points, inflating a little (unless you expect hyper precision), and checking if the mouse point is within that.
2/ OK, I'm in the rectangle, but am I near the line?
Look at http://geometryalgorithms.com/Archive/algorithm_0102/algorithm_0102.htm[^] for the equations to measure the points distance from the line. If its not within (eg) 8 pixels, move on.
3/ OK, I'm near - now display a tooltip.
I'm assuming you can do this already!
Its up to you whether you do a bounding check first or not... but as the maths are simple, it's probably worth doing on a large collection, and not worth the extra coding for only a few lines...
The website above was very handy to me in the past!
Iain.
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 In my program of creating an editor i need to display calltips that is while debugging if keep the cursor over the variable it should show u the vale of the variable...
but i don't know how to create a calltip itself in scintilla..
even then i used SCI_CATTTIPSHOW,SCI_CALLTIPACTIVE AND I'M not getting any calltip displayed...
can anyone suggest me the basic procedures of how to get a calltip in scintilla based editor...
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Hello,
I have a class derived from CRichEditCtrl.Now I want to handle the OnKeyDown message for my class.
class CRICH : public CRichEditCtrl
{
protected :
afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);
}
void CRICH::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CRichEditCtrl::OnKeyDown(nChar, nRepCnt, nFlags);
CString str;
GetWindowText(str);
CRichText = str;
}
In the above code in str I want the exact text that is entered in the edit box but what I get is one character less.
i.e if the editbox has te value entered as Delhi
I get str = Delh; nChar = i ;
What must be the problem and will I have to join str and nChar?
Thanks
Pithaa
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Can it be because of the "\0" at the end? Sometimes has to be counted as well.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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Why don't you transfer this code to OnKeyUp ?
Prasad
MS MVP - VC++
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