Re: What is going wrong here?? file appending problem - C / C++ / MFC Discussion Boards

Re: InitModalIndirect() for dialog without resorces

Hamid_RT28-Jun-07 4:11

Hamid_RT

28-Jun-07 4:11

Does this[^] helpful?

WhiteSky

Re: InitModalIndirect() for dialog without resorces

prithaa28-Jun-07 21:07

prithaa

28-Jun-07 21:07

Hello,

When I used the InitModalIndirect(),the function was executed successfully since while debugging it returned 1 a non-zero .
But the dialog box was not displayed on screen even if I called the CDialog::DoModal() function after InitModalIndiect()

Thanks
Prithaa

Getting transparent icons out of CImageList ?

Electronic7528-Jun-07 0:09

Electronic75

28-Jun-07 0:09

Hello, I'm trying to draw a toolbar with icons designed by myself(which I'm very proud of them Smile | :)

). I use CImageList to store my icons then I pass my ImageList to CToolBar to do the rest of work. I did not use LoadToolBar because I wanted to have greater control over buttons and their associated pictures. How should I tell to CImageList to get its hand off my icon and do not place a black background behind them. I want background of my icons be color of my framework.
This is my code...

<br />
m_ImageList.SetBkColor(CLR_NONE); //even when I omit this line the result is the same<br />
m_ImageList.Add(LoadIcon(hIcon));<br />
...<br />
m_ToolBar.CreateEx(this, TBSTYLE_FLAT | TBSTYLE_TRANSPARENT, WS_CHILD |WS_VISIBLE | CBRS_TOP | CBRS_GRIPPER | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);<br />
m_ToolBar.GetToolBarCtrl().SetImageList(&m_ImageList);<br />
...<br />

thanks

Re: Getting transparent icons out of CImageList ?

Mark Salsbery28-Jun-07 6:55

Mark Salsbery

28-Jun-07 6:55

You didn't show how you are creating the image list. It needs to be masked...

// assuming icons are 16x16

m_ImageList.Create(16, 16, ILC_COLOR24 | ILC_MASK, 0, 1);
...
m_ImageList.Add(LoadIcon(hIcon));

"Go that way, really fast. If something gets in your way, turn."

Re: Getting transparent icons out of CImageList ?

Electronic7528-Jun-07 7:57

Electronic75

28-Jun-07 7:57

Thanks a lot mark, you helped me again Smile | :)

. and you solved my problem completely!
I was wondering what is your mean from the phrase in your signature

Mark Salsbery wrote:
"Go that way, really fast. If something gets in your way, turn."

Dose it mean one should find the way by trail and error Confused | :confused:

anyway thanks for all the helps Smile | :)

Re: Getting transparent icons out of CImageList ?

Mark Salsbery28-Jun-07 11:11

Mark Salsbery

28-Jun-07 11:11

Electronic75 wrote:
I was wondering what is your mean from the phrase in your signature

That's a quote from the move "Better Off Dead".

Those are skiing instructions Poke tongue | ;-P

(they work for extreme programming as well Smile | :)

)

"Go that way, really fast. If something gets in your way, turn."

What is going wrong here?? file appending problem

ldsdbomber27-Jun-07 22:37

ldsdbomber

27-Jun-07 22:37

THIS WORKS
file is appended with the text "###, 28/06/07, 09:30, 1.736, 1.234"
Message Box correctly reports fileName as expected.

fstream FileDataStream;
// Read Data

FileDataStream.open(fileName, ios::out | ios::app);

// Append Data
FileDataStream<<"###,";
FileDataStream<<(LPCSTR)dateString<<','<<(LPCSTR)timeString<<',';

sprintf(buf, "%.4f,", eTable[5*sel + 2]); // GeskeDose
FileDataStream<

Re: What is going wrong here?? file appending problem

ldsdbomber28-Jun-07 3:48

ldsdbomber

28-Jun-07 3:48

Looks like I needed to call
FileDataStream.clear();

I think that some error flag is set when the while loop pulls in the EOF marker while reading the file, and that is what causes the problem when you next try to open it.

Simple Hello World Application

edisont99927-Jun-07 21:53

edisont999

27-Jun-07 21:53

Hi, I'm trying to write a simple hello world application with Visual C++ 6.0 and I get the following errors:

Compiling...
Run.cpp
C:\Program Files\Microsoft Visual Studio\MyProjects\Test2\Run.cpp(13) : error C2664: 'MessageBoxA' : cannot convert parameter 2 from 'unsigned short [13]' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

Here's my code:

#include <windows.h> // include the basic windows header file

// the entry point for any Windows program
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd)
{
// create a "Hello World" message box using MessageBox()
MessageBox(NULL,
L"Hello World!",
L"Just another Hello World program!",
MB_ICONEXCLAMATION | MB_OK);

// return 0 to Windows
return 0;
}

Any help would be greatly appreciated regarding what's the error.

Re: Simple Hello World Application

baerten27-Jun-07 21:58

baerten

27-Jun-07 21:58

try simply :

MessageBox(NULL,"Hello World!","Just another Hello World program!",MB_ICONEXCLAMATION | MB_OK);

Re: Simple Hello World Application

edisont99927-Jun-07 22:02

edisont999

27-Jun-07 22:02

Thanks a lot, it worked. Sorry I'm kind of new. Do you know why? All I did was copy the code from a textbook. Thanks again.

Re: Simple Hello World Application

baerten27-Jun-07 22:20

baerten

27-Jun-07 22:20

"Hello" is a simple string of char's - which is constant in your code
so it's a const char *

typing L"Hello" , specially the L before the string realises a special casting(*), but i don't know
in which type. Regarding your error-message the L does make a casting to a short array

* Casting: is a forcing of a data-type into another type

For example

int number = 69; --> a real number data type
char test = (char)number; --> forces the number 69 into a char, regarding the ASCII-Coding, the Number 69 is the character 'E'
test will store 'E' after this line of code

Re: Simple Hello World Application

Cedric Moonen27-Jun-07 22:21

Cedric Moonen

27-Jun-07 22:21

Because the macro L"..." (as you put it as argument to the MessageBox function) tells the compiler that the string literal (so the string that is between "") should be considered as a UNICODE string. A UNICODE string is a string that can display a larger set of character but also means that each character is encoded on two bytes instead of one. This string type is 'incompatible' with a standard char array (you cannot exchange from one to the other).
In fact, you won't have any error if you specified that UNICODE is enabled for your project. But in the case of VC6, the default is that UNICODE is disabled. If you used Visual Studio 2005, UNICODE is enabled by default.

Now, to avoid these kind of errors, use the _T macro instead. It will automatically take care of UNICODE setting enabled or not.

Cédric Moonen
Software developer

Charting control [v1.2]

Re: Simple Hello World Application

CPallini27-Jun-07 22:46

CPallini

27-Jun-07 22:46

MSDN [^]states: To specify a string of type wide-character (wchar_t[]), precede the opening double quotation mark with the character L. For example:

wchar_t wszStr[] = L"1a1g";

hence your string is a wide-character one, while the MessageBoxA (note the A suffix) is the ANSI version of the MessageBox, choosen by the compiler because you are making an ANSI build (the default one, on VC6). MessageBoxA accepts only ANSI strings (i.e. char *) while your strings are wide (i.e. unsigned short *), hence the error shows up.

Perhaps the sample code you used assumes you're using a later version of Visual Studio, that has UNICODE builds as default.

Hope that helps.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: Simple Hello World Application

Michael Dunn28-Jun-07 8:10

Michael Dunn

28-Jun-07 8:10

See The Complete Guide to C++ Strings, Part I - Win32 Character Encodings[^]

Creating a new DSN

Pradosh Tapan Datta27-Jun-07 21:24

Pradosh Tapan Datta

27-Jun-07 21:24

Hi,

Can anybody help me out how to create a "Data Source Name" from my C++/MFC program?
I am using VC++8, Windows XP, and MySQL.

Pradosh

Re: Creating a new DSN

nitin327-Jun-07 21:31

nitin3

27-Jun-07 21:31

try
SQLConfigDataSource(...) API

Re: Creating a new DSN

Pradosh Tapan Datta27-Jun-07 23:14

Pradosh Tapan Datta

27-Jun-07 23:14

I was trying to get some help on SQLConfigDataSource(). I am not able to find any help in MSDN. Which header file it is belonging or so on so!

Currently I am using a reverse way to do the same:

<br />
system("odbcconf /S CONFIGDSN \"MySQL ODBC 3.51 Driver\" \"DSN=MyDsn | Description=test dsn | SERVER=10.1.1.4 | User=user1 | Password=pw1 | Database=MyDb\"");<br />

But I want to use any API to do the same.

Pradosh

Re: Creating a new DSN

nitin327-Jun-07 23:29

nitin3

27-Jun-07 23:29

imp lib: ODBCCP32.lib
include file : "odbcinst.h"

ref:
http://www.codeguru.com/cpp/data/mfc_database/microsoftaccess/article.php/c1135/

This creates a new DSN

Programm3r28-Jun-07 1:38

Programm3r

28-Jun-07 1:38

/**********************************************************************************
# FUNCTION NAME			: CREATEDSN
# PAREMETERS			: driver, keyword
# PARAMETER DATATYPES		: ALL CHARACTER POINTERS
# RETURN TYPE			: INTEGER
# USE				: Create a system dsn
**********************************************************************************/
extern "C" int sqlClass::createDSN(char* driver, char* keyword)
{
	//creating a return value variable
	int returnValue;
	try
	{
		//create a systems dsn - specify a driver and a keyword -> connection string
		returnValue = SQLConfigDataSource(NULL,ODBC_ADD_SYS_DSN,(LPSTR)driver,(LPSTR)keyword);
		if (returnValue)
			return 0;
		return -1;
	}
	catch(...)
	{
		//display a message to user if a exception occured
		MessageBox(NULL,"Exception Occured - DSN not created","Error Occured",MB_ICONHAND);
		return -2;
	}
}

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Re: This creates a new DSN

Mark Salsbery28-Jun-07 6:44

Mark Salsbery

28-Jun-07 6:44

I'm curious....does SQLConfigDataSource throw exceptions? You have it wrapped in a try block.

Mark

"Go that way, really fast. If something gets in your way, turn."

File Encryption

danasegaranea27-Jun-07 21:22

danasegaranea

27-Jun-07 21:22

Hi all,
I need some good file encryption with password.Can you some suggest some thing.Please note that I am new to VC++

Dana

DES / 3DES / TEA ...

zhang80060527-Jun-07 22:15

zhang800605

27-Jun-07 22:15

There are general way to Encrypt .

chinese web
http://www.sfcode.cn/soft/00262.htm[^]

Re: DES / 3DES / TEA ...

danasegaranea27-Jun-07 23:13

danasegaranea

27-Jun-07 23:13

I don't know chinese.Not able to read the web site content/

mfc in vista

deeps_cute27-Jun-07 21:10

deeps_cute

27-Jun-07 21:10

i have created a mfc code in windows vista. but i cant run it in debug mode. it shows
"The ordinal could not be losded in the dynamic link library MFC42D.DLL". but it is successfully running in release mode. what to do for this, pls help me

Arise Awake Stop Not Till ur Goal is Reached.

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