C / C++ / MFC

13-Mar-06 6:07

hi
I have downloaded the mysql++ from here, i got the link from www.mysql.com download page
http://tangentsoft.net/mysql++/releases/mysql++-1.7.1-win32-vc++.zip

iam using this version as im using vc++6

when extracted there is serveral folders labled "lib" and "include" which ones do i copy to my "lib" and "include" folders on my pc?

is there a better wrapper out there or a site that gives good examples on using the mysql++ wrapper with vc++6

thanks

viperlogic13-Mar-06 6:14

13-Mar-06 6:14

if i copy all of them in and use

#include <mysql++>

then in the code do a connect as below
Connection con("login","localhost","root","abc");

i get the following errors and warnings
c:\program files\microsoft visual studio\vc98\include\type_info1.hh(39) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\type_info1.hh(159) : warning C4800: 'unsigned int' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\type_info1.hh(172) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\type_info1.hh(176) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\type_info1.hh(180) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\type_info1.hh(184) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\convert1.hh(40) : warning C4273: 'strtol' : inconsistent dll linkage. dllexport assumed.
c:\program files\microsoft visual studio\vc98\include\convert1.hh(41) : warning C4273: 'strtoul' : inconsistent dll linkage. dllexport assumed.
c:\program files\microsoft visual studio\vc98\include\sql_query1.hh(37) : warning C4800: 'class SQLQuery *' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\sql_query1.hh(135) : warning C4355: 'this' : used in base member initializer list
c:\program files\microsoft visual studio\vc98\include\compare1.hh(48) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
c:\program files\microsoft visual studio\vc98\include\result1.hh(33) : warning C4355: 'this' : used in base member initializer list
c:\program files\microsoft visual studio\vc98\include\result1.hh(42) : warning C4800: 'char' : forcing value to bool 'true' or 'false' (performance warning)
Linking...
mysqlDlg.obj : error LNK2001: unresolved external symbol "public: __thiscall MysqlConnection::~MysqlConnection(void)" (??1MysqlConnection@@QAE@XZ)
mysqlDlg.obj : error LNK2001: unresolved external symbol "public: __thiscall MysqlConnection::MysqlConnection(char const *,char const *,char const *,char const *,bool)" (??0MysqlConnection@@QAE@PBD000_N@Z)
Debug/mysql.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.

Hardy_Smith13-Mar-06 6:21

13-Mar-06 6:21

Is there a lib included in the package you downloaded?
If yes, you have not added it to your project. ( project, options, linker )

If you have sourcecode, add the sourcefiles ( the .c or .cpp ) to you project.

Your trace shows many warnings because you initialise some variables you never use and then the constructor from MysqlConnection is not found.

viperlogic13-Mar-06 6:32

13-Mar-06 6:32

there is two librarys in different folders, there is mysql++.lib and libmySQL.lib

if you download the zip file you will see the chaos iam on about

how do you add them in vc++6 if they do have to be added, they way abou tyou mentioned appears to be for a later version.

many thanks

Hardy_Smith13-Mar-06 6:45

13-Mar-06 6:45

In VC6, go to project ment, the to properties ( ok, I have a german version, so I don't know the exact name. )
There you find on the left side your build-targest, and on the right side a tab-control.
In the tab, ther is a page called "linker". Go to it, There is a edit "Objects, libs". Add your library there. Then, click on category and point to input. There add your additional library-path. That's all.

Good luck!

viperlogic13-Mar-06 7:08

Reading contents of other apps Window

13-Mar-06 7:08

did all that and now get the error

LINK : warning LNK4098: defaultlib "LIBC" conflicts with use of other libs; use /NODEFAULTLIB:library

so if select the option in properties of "ignore all default libraries" i then get over 200 errors!!

Hardy_Smith13-Mar-06 5:53

13-Mar-06 5:53

Hi all,

I want to "control" an application with a second one. The app it there to control a Hardware and I don't have the code Frown | :(

It is command-based: I can write a command in a CEdit-like window, and the response is displayed in the same window. ( a Hexdump, maybe )

Is it possible to grap the contents of this window and to write ( from my own app ) into it?

Somethink like enumerateWindow and then access over the clipboard? Confused | :confused:

Thanks , Hardy.

David Crow13-Mar-06 6:51

David Crow

13-Mar-06 6:51

If you have a handle to the (edit) control, you can use GetWindowText() to get its contents.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Hardy_Smith13-Mar-06 6:56

13-Mar-06 6:56

DavidCrow wrote:
If you have a handle to the (edit) control, you can use GetWindowText() to get its contents.

I think its not so simple. The Application ( A1 ) to control the Hardware is ready and closed.

I am writing a new App ( A2 ) , in mfc, to do some extra-work. Now I want to access A1`s main window. I want to write to it and read from it from within A2.

Thanks,
Hardy.

David Crow13-Mar-06 7:02

David Crow

13-Mar-06 7:02

Hardy_Smith wrote:
The Application ( A1 ) to control the Hardware is ready and closed...Now I want to access A1`s main window.

How do you expect to read from a non-existent window?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Hardy_Smith13-Mar-06 20:22

13-Mar-06 20:22

With closed I mean closed-source. I don't have the source.
The window itselve is open, of course.

Sorry, it was not clear.

what is different cdialog and cdialogbar?

David Crow14-Mar-06 3:14

David Crow

14-Mar-06 3:14

Like I said before, get a handle to the (edit) control (using FindWindow()), then use GetWindowText() to get its contents.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

derek713-Mar-06 5:12

derek7

13-Mar-06 5:12

it seem no different between them, dialogbar is just no-title dialog.
am I right? why do I need the dialogbar other than dialog?

Re: what is different cdialog and cdialogbar?

toxcct13-Mar-06 5:17

toxcct

13-Mar-06 5:17

here is[^] what a dialog bar is made for...

how to get cview or cdocment object pointer?

derek713-Mar-06 5:10

derek7

13-Mar-06 5:10

in MFC, I know doc and view is created in ProcessShellCommand with CSingleDocTemplate.

but I wanna get current view pointer so that I can hide it by ShowWindow(getView(), SW_HIDE);

Re: how to get cview or cdocment object pointer?

Hardy_Smith13-Mar-06 6:37

Re: how to get cview or cdocment object pointer?

13-Mar-06 6:37

First,

pos = AfxGetApp()->GetFirstDocTemplatePosition();
ASSERT(pos);
pTemplate=AfxGetApp()->GetNextDocTemplate(pos);
POSITION docpos=pTemplate->GetFirstDocPosition( );

get the first DocTemplate. Then you can enumerate your views.

CDocument *pDocument=NULL;
while (docpos)
{
pDocument = pTemplate->GetNextDoc(docpos);
ASSERT(pDocument);

POSITION viewpos = pDocument->GetFirstViewPosition();
while (viewpos != NULL)
{
...
}
}

Hope this helps,
Hardy.

derek713-Mar-06 16:18

derek7

13-Mar-06 16:18

POSITION pos = GetFirstViewPosition();
while (pos != NULL)
{
CView* pView = GetNextView(pos);
pView->UpdateWindow();
}

if GetFirstViewPosition return a first pos.then GetNextView will return second pos view pointer. Am I right?

Passing large char array information to dll

Blubbo13-Mar-06 4:24

Blubbo

13-Mar-06 4:24

What's the best way to pass the large char array (could be up to 3000 characters long) to dll. I've tried to declare the char variable in main program,like this (char longArray[3000]) but it seems to cause eAccessViolation error during runtime.

I need to pass the large char array to my customized dll for data processing. I have already created about 12 different data processing algorthms but will have the same parameters.

Question me if you don't understand what I'm trying to explain. thanks!

Re: Passing large char array information to dll

Cedric Moonen13-Mar-06 4:36

Cedric Moonen

13-Mar-06 4:36

Did you try to use the debugger to see where it crashes ?

Line Counter for VS 2005 Beta

Priyank Bolia13-Mar-06 4:05

Priyank Bolia

13-Mar-06 4:05

I have written a Line Counter for VS 2005, any body interested can download from: http://www.priyank.in/downloads/

http://www.priyank.in/

toxcct13-Mar-06 4:22

toxcct

13-Mar-06 4:22

Project Line Counter[^]... D'Oh! | :doh:

if you want to advertise, post here[^], otherwise, write an article and provide the source.

ps: there not even some doc about it Sigh | :sigh:

darkelv13-Mar-06 5:27

darkelv

13-Mar-06 5:27

.. and I am still search wth was that program installed... Wink | ;)

toxcct13-Mar-06 5:30

toxcct

13-Mar-06 5:30

sorry ?

i don't understood you sir...
may you please rephrase ?