C / C++ / MFC

what are the best CButton derived classes ?

9-Dec-04 2:38

If the menu's handler function is in the view, try:

CDXtoXDView::OnMenuItem()
{
    CDXtoXDDoc *pDoc = GetDocument();
    CMyDialog dlg(pDoc->somedata);
  
    dlg.DoModal();
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Thomas Haller8-Dec-04 22:53

8-Dec-04 22:53

hi there.

Yesterday i've got a problem with CButton and icons,
so i looked here in codeproject for a better Button class.

i found many great buttons here but the overview is really bad.
is there any button collection - or an ultimative button ?

i think many people got that - so , how you've solved that problem ?

greetings from austria - Tom

Maximilien9-Dec-04 2:27

Maximilien

9-Dec-04 2:27

take the ones with the highest rating.

depending one what are your requirements for your buttons, it might be hard for me/us to tell you which one is the best.

Have you tried some of them ?

Maximilien Lincourt
Your Head A Splode - Strong Bad

Thomas Haller9-Dec-04 3:00

9-Dec-04 3:00

yes i tried a few.
i hoped that peopled made a "All Buttons you need"-set.
at the moment i am planning to improve a nice button with the features of other buttons - make it easy to use and so on - if the authors let me.
what do you think about it ?

just RAM-wasting or a good tool if good implemented ?

greets

David Crow9-Dec-04 2:40

9-Dec-04 2:40

Here is one.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Thomas Haller9-Dec-04 3:16

writing data in to an XML

9-Dec-04 3:16

thx for the tipp.

look here (better Bitmap Button) its a improved Button as the one you have shown me ( i think) originaly by Joseph M. Newcomer, modificated by Jeff Mallett.

i saw your CRegionButton too, and a few others too.

any suggestions what buttons i should use ?
i am looking for a nice button suite or a all in one button, so i dont waste time for learning the wrong buttons.

greetz

manimalap8-Dec-04 21:55

manimalap

8-Dec-04 21:55

Hi,
How to write some data from listcontrol to ".html" file using MFC.
Please answer this question.

Re: writing data in to an XML

Ritu Kwatra8-Dec-04 23:57

Ritu Kwatra

8-Dec-04 23:57

The following link can help you.
http://www.perfectxml.com/CPPMSXML/20020712.asp[^]

It tells about creating a XML file.

Rits

Protection of to-be-executed written file

Donny Tytgat8-Dec-04 21:38

Donny Tytgat

8-Dec-04 21:38

Hi
Sorry for the confusing title, but i didn't have a clue how to summarize my question.

This is the situation:

I'm making a program which creates an exe (in memory), writing this exe to disk, and executing it from within the program (on another thread). The user then uses that program which was written to disk, and when he exists it he returns to the main program, and the exe gets deleted.

This is the problem:

I need to somehow protect the written exe from being read by another app. As i implemented it atm, you can just alt-tab out of the program (which was written to the disk, and executed from the main program) and copy the generated exe somewhere else. When alt-tabbing back to the program, and exiting it, the user has this exe which shouldn't be possible.

Solution?

Is there a way to protect the written exe so the user can't copy it to another location (or read it with some hex editor), but the OS can execute that same exe? I've tried different stuff already, but all without succes. The best would be i could execute the program from in-memory, but i don't think thats possible, right?

Thx in advance for any help.

Re: Protection of to-be-executed written file

David Crow9-Dec-04 2:46

Re: Protection of to-be-executed written file

9-Dec-04 2:46

Donny Tytgat wrote:
I'm making a program which creates an exe (in memory), writing this exe to disk...

Be sure to use a non-descriptive filename (e.g., GetTempFileName()) instead of something obvious like mysupersecretprog.exe.

Donny Tytgat wrote:
The best would be i could execute the program from in-memory, but i don't think thats possible, right?

Yes, it's possible. There are a few examples available via Google. In summary, it involves knowledge of the PE file format.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Donny Tytgat9-Dec-04 6:36

Donny Tytgat

9-Dec-04 6:36

The name of the exe isn't really important, the user can just use a taskmanager to retrieve what file is being executed (and its always in the same dir).

I searched a bit for the PE file format, and executing a file from memory but it all seems a bit "overkill" (work-wise) for what i'm trying to do (which is basically something to prevent cheating in a game). Dont wanna spend ages on something which can be cracked using some memory monitoring tool, just wanted to make it a bit harder on potential cheaters.

Anyways, thx for your answer David Crow. At least i know what the PE file format is now Wink | ;)

character size more than 2 bytes

parag8-Dec-04 21:17

parag

8-Dec-04 21:17

Hello

I want to develop a software in vc++ which takes character size more than 2 bytes.
It means I cannot use UNICODE .
What settings should I use in Visual Studio or how can I use character size more than 2 bytes ?

vikramlinux8-Dec-04 22:09

vikramlinux

8-Dec-04 22:09

Is there any special case where u need more than 2 bytes to store character?

soundman328-Dec-04 22:17

soundman32

8-Dec-04 22:17

What language are you trying to store?

Unicode handles every language available on the planet (including Klingon, Vulcan and Welsh) with a lot of room left for new languages. So unless you have invented some new language, UNICODE will work.

What are you actually trying to do?

Neil

parag8-Dec-04 22:27

parag

8-Dec-04 22:27

ok thanks
I thought that there might be a case where I have to handle more than 2 bytes size and the software should not fail.
anyways Is this possible or impossible ?

Prakash Nadar9-Dec-04 4:26

Prakash Nadar

9-Dec-04 4:26

Answer is simply no. you cant do it in VC++ atleast, but you can always design your application to store more than 2 byte per char, but none of the windows api will be of any use coz they accept either ascii or unicode character set.

-prakash

Henry miller9-Dec-04 5:36

Henry miller

9-Dec-04 5:36

The 32 bit versions of unicode handle everything. The 16 bit versions miss a lo. (mostly Asain languages where there are a different symbol for each word) Windows is mostly 16 bit unicode.

UCS-8 (which is common on unix) is variable size, IIRC it can use up to 6 bytes, or as little as 1.

toxcct8-Dec-04 22:24

toxcct

8-Dec-04 22:24

are there any special reasons for that you could explain fully here ?
UNICODE provides 2 bytes per character, that allow you to have 65535 different characters in the same "set", which is large enough to represent all the characters of the world... Cool | :cool:

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Thomas Haller9-Dec-04 2:28

9-Dec-04 2:28

hmmm - does it support those elven-characters from Lord of the Rings ? Suspicious | :suss:

Re: A CRecordset Problem.

Henry miller9-Dec-04 5:40

Henry miller

9-Dec-04 5:40

Yes you can use unicode. However you cannot use the uncode functions built into windows, because they use UCS-2 which is only 16 bit.

I would typedef unsigned long to something like my_unicode_type, so that if you come up with something better latter you only need to change your type in one place. This depends though, if you are writting a class to wrap everything it might not be required.

A CRecordset Problem.

willyfu8-Dec-04 21:01

willyfu

8-Dec-04 21:01

I use Teradata database.
Teradata has a SQL Statement :show table mytable;
This statement can return the definition of mytable.
But CRecordset class cann't run this SQL.
CDatabase can do it,but CDatabase.ExecuteSQL function has no return .

strSQL = "Show table mytable;";
set.Open(CRecordset::forwardOnly,(LPCTSTR)strSQL,CRecordset::none);//Error !

database.ExecuteSQL(strSQL);//OK,but how can I get the result?

How can I run this SQL and get the result?
Thanks.

David Crow9-Dec-04 3:16

Thank you ,and I have used the ODBC API

9-Dec-04 3:16

willyfu wrote:
How can I run this SQL and get the result?

Getting the results from a stored procedure is not that difficult. One way of doing it is shown in MSDN article Q183001.

Here is another.

Here is a helpful discussion.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

willyfu9-Dec-04 18:16

willyfu

9-Dec-04 18:16

finally,I found the ODBC API solution.

CString strSQL;
SQLLEN nRecCount,nFieldLen;
strSQL.Format("Show table mytable;");
CRecordset set(&database);//Create a CRecordset object

SQLExecDirect(set.m_hstmt,(SQLCHAR*)strSQL.GetBuffer(strSQL.GetLength()),strSQL.GetLength());
SQLRowCount(set.m_hstmt,&nRecCount);
for(int n = 0;n < nRecCount; n++)
{
SQLFetch(set.m_hstmt);
SQLGetData(set.m_hstmt,1,1,str1.GetBuffer(32000),32000,&nFieldLen);
str1.ReleaseBuffer();
}

that's all.

Re: Thank you ,and I have used the ODBC API

David Crow14-Dec-04 3:22