Entries for cro

Jumping in the .net bandwagon

cro — Fri, 20 Nov 2009 20:54:22 GMT

I know that I'm very late, but we are jumping in the .net bandwagon. I have done some little app in C# but I would like tutorials for professional app (localization, save the toolbars and windows state, etc.). I've search the msdn site, but it is hard to find informations (maybe it is just me). So any book recommandation, sites, webcast, or old pcd videos would be great.

I'm moving from C++/MFC/Stingray/MapX/Vertical Mapper to C#/MSChart/MapXtreme/Vertical Mapper.

Thanks.

x86 vs x64 performance ? [x86 vs x64 performance ?]

cro — Tue, 03 Nov 2009 18:36:21 GMT

I'm running some test in C++ to be sure that our program run in x86 and x64. I was really surprise to notice a speed improvement in x64. I'm running the test on a Win7 x64 machine. Is the x64 is faster because it is running on a 64 OS ? Or is it something in the code that is better in x64 ? I'm using VS 2008.

[code language="cpp"]
#include <iostream>
#include <ctime>

using namespace std;

#define ROWS 2000
#define COLS 2000
#define LOOP 100

int main()
{
   float* m = new float[ROWS * COLS];
   time_t begin, end;
   time(&begin);

   for (int n = 0; n < LOOP; ++n)
   {
      for (size_t row = 0; row < ROWS; ++row)
      {
         for (size_t col = 0; col < COLS; ++col)
         {
            m[row * COLS + col] = 1.0f * (rand() % 1000);
         }
      }
   }
   time(&end); double elapse = difftime(end, begin);
   cout << "Done in " << elapse << " seconds" << endl;

   delete[] m;
} [/code]

That simple test took 12 seconds in x86 and only 8 seconds in x64. Repro or explanation anyone ?

Thanks.

in reply to x86 vs x64 performance ?

Design by Contract in C# [Design by Contract in C# ]

cro — Fri, 25 Sep 2009 18:04:48 GMT

Is there a basic DbC framework that I could use in VS2008 and Mono ?

in reply to Design by Contract in C#

IESHIMS.DLL & WER.DLL missing [IESHIMS.DLL & WER.DLL missing]

cro — Tue, 01 Sep 2009 13:02:39 GMT

After deploying my application (MFC/VS 2008 SP1) on Windows XP, I get the complaint that the application configuration was incorrect and I should reinstall. vcredist is install. So I run depends and IESHIMS.DLL and WER.DLL are missing. How can I install thoses dll ?

EDIT: ok after some investigation, it is a Side by Side error. I have create a sample test application and depends also tell me that ieshims.dll and wer.dll are missing, but the application run. How can I resolve a side by side error ?

in reply to IESHIMS.DLL & WER.DLL missing

Media Center wtv file thumbnail ? [Media Center wtv file thumbnail ?]

cro — Sat, 29 Aug 2009 01:41:14 GMT

Media Center in Windows 7 use the wtv file format for recorded tv show. There is one thing that I really dislike, to create the thumbnail for those files, we must go to recorded tv under Media Center. With Vista, explorer was able to create the thumbnail. Repro anyone ?

in reply to Media Center wtv file thumbnail ?

Media Center user account [Media Center user account]

cro — Thu, 20 Aug 2009 16:30:39 GMT

I've create an account for each family member on our media center, but I would like to create a "media center" account. The goal of that account would be to lauch media center and nothing else and log off when you quit media center. I have found in the media player options a way to start it when windows start for an account, but it's not what I want.

Is it possible ?

in reply to Media Center user account

Media Player and Zune database ? [Media Player and Zune database ?]

cro — Thu, 23 Jul 2009 21:59:38 GMT

I've bough the Billy Talent III album and I'm surprised that Media Player and Zune can't find the album art. How does it work ? Is the information provide by end users like CDDB ?

in reply to Media Player and Zune database ?

MapXtreme 2008 [MapXtreme 2008]

cro — Mon, 13 Jul 2009 17:43:30 GMT

Any MapXtreme user here ? We are using MapX 4.5 and Vertical Mapper 3 in our app and we are looking for a newer SDK. What I would like to know is the raster capability of MapXtreme. We need to reproject raster data and create new layer of raster data. The documentation link is broken on the site.

in reply to MapXtreme 2008

University and Microsoft [University and Microsoft]

cro — Thu, 09 Jul 2009 00:13:39 GMT

For my personel knowledge I'm following some corse at university. I was surprise that all teachers (for now) use Visual Studio and not Eclipse. One teacher even use managed C++. To me the best place to find OSS advocate was the university. But, most students are like Corona and Ubuntu, its Linux and noting else. and Microsoft is written with a $. I've brought my VS backpack to an exam one day, and I though that some student gonna puke on me (I exaggerate, but not much :D).

The university is even moving to Exchange 2007.

How it happens in your university?

in reply to University and Microsoft

How to retreive what is send to a web server ? [How to retreive what is send to a web server ?]

cro — Wed, 27 May 2009 13:42:03 GMT

I'm using a web site to get climate data from weather station. The site can provide all station within x kilometer from a lat lon point. I would like to get that list programaticly but I don't know what is send to the web site. How can find that ?

http://www.climate.weatheroffice.ec.gc.ca/advanceSearch/searchHistoricData_e.html?timeframe=1&Prov=XX&StationID=9999&Year=2009&Month=5&Day=26

in reply to How to retreive what is send to a web server ?

Windows 7 SDK and VS2008 intregration [Windows 7 SDK and VS2008 intregration]

cro — Sun, 10 May 2009 23:02:47 GMT

I have VS2008 pro sp1 under Windows 7 RC and I have install the Windows 7 SDK. When running the intregration tool for VS, I've receive a message that said that vs2005 or vs2008 is not install. Any idea ?

in reply to Windows 7 SDK and VS2008 intregration

French menu bug [French menu bug]

cro — Mon, 27 Apr 2009 22:26:19 GMT

The "about" menu is misplace in french when we are not log in.

in reply to French menu bug

IE7 and Firebox small bug on my website [IE7 and Firebox small bug on my website]

cro — Sat, 25 Apr 2009 14:06:28 GMT

I've create a small site for an nhl hockey pool with some friends and I have a small bug on IE7 and Firefox. On IE8 everything is ok. If you go to the site with IE7 or Firefox, notice that the nhl logo is not fully click able, but it is on IE8. Any idea on what cause the problem ?

http://nsl.hobby-site.org:81/

Thanks.

in reply to IE7 and Firebox small bug on my website

Refactor C/C++ code with VS2010 ? [Refactor C/C++ code with VS2010 ?]

cro — Tue, 21 Apr 2009 13:24:41 GMT

Do you think that it will be possible to refactor C/C++ code with VS2010 ? SunStudio12 can, so I expect no less from VS.

in reply to Refactor C/C++ code with VS2010 ?

How-to retreive a div innerHTML from a CHtmlView (C++/MFC) ? [How-to retreive a div innerHTML from a CHtmlView (C++/MFC) ?]

cro — Tue, 31 Mar 2009 13:11:38 GMT

I use Virtual Earth in a CHtmlView. With the ve onmousemouve event I can get the lat long value in an hidden div on the page. I would like to retreive that value and display it on the status bar of the application. Any idea on how to do that ?

Thanks.

in reply to How-to retreive a div innerHTML from a CHtmlView (C++/MFC) ?

MFC MUI application with VS2008 [MFC MUI application with VS2008]

cro — Thu, 05 Mar 2009 13:30:49 GMT

Do you know where I can find very good documentation for creating an MUI MFC application with VS2008 ? The test app that I made work for the string table and the dialog, but not for the menu.

Thanks.

in reply to MFC MUI application with VS2008

Help needed with a layout (html+css) [Help needed with a layout (html+css)]

cro — Tue, 17 Feb 2009 00:53:08 GMT

I have a page layout that use div and when I add a paragraph <p> in the div, the layout is all mess up. For exemple with this code, the table is what I want as the final result.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Untitled Page</title>
<style type="text/css">
.container {
width: 500px; }
.test1 {background-color: Red; }
.test2 {background-color: Blue; }
.test3 {background-color: Green; }
</style>
</head>
<body>
<h1>table</h1>
<table class="container" border="0" cellpadding="0" cellspacing="0">
   <tr><td class="test1"><p>First</p></td></tr>
   <tr><td class="test2"><p>Second</p></td></tr>
  <tr><td class="test3"><p>Third</p></td></tr>
</table>
<h1>div</h1>
<div class="container">
  <div class="test1"><p>First</p></div>
  <div class="test2"><p>Second</p></div>
  <div class="test3"><p>Third</p></div>
</div>
</body>
</html>

Thanks.

in reply to Help needed with a layout (html+css)

Subversion and MFC [Subversion and MFC ]

cro — Wed, 21 Jan 2009 18:38:14 GMT

Moving from VSS to Subversion, any advice using subversion source control for MFC application ? My main consern is the ressource (h, rc) if more than one devs can edit them at the same time.

Also is there a good addin for Visual Studio 2008 that work mostly like VSS ?

in reply to Subversion and MFC

Windows 7 first impression [Windows 7 first impression]

cro — Sat, 10 Jan 2009 21:42:15 GMT

I like the new task bar
I like the fact that when I maximize a windows, the task bar and the windows are still transparent
ISO burning built in yes !
WMP hidden controls when watching a movie
IE8 has some issue with msn.ca, but it seem faster than IE7
"Devices and Printers"

For a beta I'm really impress. Just one bug so far, as with Vista in the beta, the screen saver never start.

in reply to Windows 7 first impression

Portable "native" C++ graphic library ? [Portable "native" C++ graphic library ?]

cro — Fri, 09 Jan 2009 01:47:18 GMT

I've just try FLTK and the look and feel is like Unix of the 90 (look at the clock). Is there a C++ graphic library that look native on Windows, Linux and OS X ? Do you think that it is possible ?

in reply to Portable "native" C++ graphic library ?

Retreive a message from a CreateProcess ? [Retreive a message from a CreateProcess ?]

cro — Fri, 05 Dec 2008 21:02:15 GMT

Is it possible to create a process, an MFC application, and from that MFC application send message back to the programme that create the process ?

The goal is to be able to run the MFC application with a UI or in a console. So I create a console app (a.com) that launch the MFC application (a.exe) with a swith to run in console mode, but how can the MFC app send message back to a.com so that message get display in the console ?

Thanks.

in reply to Retreive a message from a CreateProcess ?

Enum C# vs C++ [Enum C# vs C++]

cro — Tue, 02 Dec 2008 19:54:31 GMT

In C# this is perfectly legal :

enum A
{
    None,
    Value1,
    Value2
}

enum B
{
    None,
    Sometype1,
    Sometype2
}

C++ complain that None is already define, so is it possible to accomplish the same thing in C++ ?

Thanks

in reply to Enum C# vs C++

Very long class name ? [Very long class name ?]

cro — Fri, 14 Nov 2008 15:13:28 GMT

I try to rewrite our C++ app in C# and refactoring the app in doing it. In C++ we have that class hierarchy:

SubModel
    PotentialEvapotranspiration
        Penman
        HydroQuebec
        Thornthwaite
    VerticalWaterBudget
        Bv3c

Following some guideline in C# and came up with this:

SubModel
    PotentialEvapotranspirationSubModel
        PenmanPotentialEvapotranspirationSubModel
        HydroQuebecPotentialEvapotranspirationSubModel
        ThornthwaitePotentialEvapotranspirationSubModel
    VerticalWaterBudgetSubModel
        Bv3cVerticalWaterBudgetSubModel

So, how long is too long ? The kernel of our app is open source, so as a developper, would you like having those class name ?

in reply to Very long class name ?

std::max() std::min() missing in VC8 and VC9 ? [std::max() std::min() missing in VC8 and VC9 ?]

cro — Mon, 08 Sep 2008 13:24:18 GMT

Is it me or std::max and std::min are missing in VC8 and VC9 ?

in reply to std::max() std::min() missing in VC8 and VC9 ?

Why cout (c++) is so slow under Vista ? [Why cout (c++) is so slow under Vista ?]

cro — Mon, 11 Aug 2008 12:58:45 GMT

I was very suprise that a program I'm working on took more time to execute on a Core2 duo 2.4 ghz with Vista 64 then on a 4 years old Celeron 1ghz with Ubuntu 8.04. So I comment out a line that display date time at each step and after that the Vista version was very fast. So I write this simple test program :

#include <iostream>
#include <string>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <ctime>

using namespace std;

int main()
{
    boost::posix_time::ptime begin(boost::gregorian::date(1900, 1, 1), boost::posix_time::hours(0));
    boost::posix_time::ptime end(boost::gregorian::date(2008, 1, 1), boost::posix_time::hours(0));

    boost::posix_time::ptime current(begin);

    time_t start, finish;
    time(&start);

    while (current < end)
    {
        cout << current << "\r";
        current += boost::posix_time::hours(24);
    }
    cout << endl;

    time(&finish);

    double elapsed_time = difftime(finish, start);
    cout << "Done in " << elapsed_time << " seconds." << endl;
}

That simple test take 30 seconds to execute under Vista, and 1 seconde under Ubuntu on the same machine. So any idea why a cout is so slow under Vista ?

I'm using VS2005 under Vista and gcc under Ubuntu.

in reply to Why cout (c++) is so slow under Vista ?