Managed C++/CLI

Developing Database Applications Using Dialog Forms instead of SDI or MDI with ADO connectivity

3-Jul-05 12:31

If you are getting an Interop error saying that the namespace does not exist, it's because Visual Studio .NET can not find the generated assembly.
Where is it? You can put it in your project directory, this is a default Visual Studio search location. You can also set the search path by right clicking on the project in the Solution Explorer and setting the path in the appropriate property page.
Read this from MSDN:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vsintro7/html/vxurfVCDirectoriesProjectsOptionsDialogBox.asp[^]

You want to set the path for the reference files. You must select this from the dropdown menu (the default is the #include directory).
Also, Adam Nathan does exactly what you are doing in his book, ".NET and COM: The Complete Interoperability Guide"; he provides all the code and an very clear explanation about how and why you are doing what you are doing. If you are new to this kind of thing, I would recommend reading the book, it's excellent.

Re: axWebBrowser in MC++

osamahmirza4-Jul-05 10:11

osamahmirza

4-Jul-05 10:11

Thank you very much for such a great help!!!!
Cheers

Wisdom200429-Jun-05 21:24

Wisdom2004

29-Jun-05 21:24

Hai,

Friends,I want some one to tell me how to go about developing DataBase Applications Using Dialog forms with ADO techonology.

Thanking you in advance.

Re: Developing Database Applications Using Dialog Forms instead of SDI or MDI with ADO connectivity

osamahmirza2-Jul-05 9:56

osamahmirza

2-Jul-05 9:56

hi wisdom2004,
so far I think, dialog based application is not much different from SDI, its just the matter how you gonna show your forms. So far the ADO is concerned, check this out:
http://www.codeproject.com/managedcpp/adonet_mcpp.asp[^]
I hope it will help!
osAma

problem with _beginthread in second class

Niels_Bergsma29-Jun-05 12:56

Niels_Bergsma

29-Jun-05 12:56

Hi everyone,

I'm developing a c++ multithread app create a thread in a separated class:

I've also used _beginthread in the main function of the program without any problems, here my code looks liks this:
_beginthread(StartTCPService,0, NULL );

In my second class (tmpClient) I tried to do the same with this code:

<br />
void ClientThread (void *socket)<br />
{<br />
    SOCKET sd = (SOCKET) socket;<br />
}<br />

and to create a thread:
_beginthread(SocketClientThread,0, NULL);

But my compiler complains that:

error C2664: '_beginthread' : cannot convert parameter 1 from 'void (void *)' to 'void (__cdecl *)(void)'

I tried to convert the thread func to a static one, but with any luck.

What's wrong with this code, why can't I create a thread ?

Regards,

Niels Bergsma

Note: I'm developing with VisualStudio .Net 2003

Array

Saksida Bojan28-Jun-05 6:05

28-Jun-05 6:05

This below is clasic decleration.
int test[] = { 0x00008000, // 32K
0x00010000, // 64K
0x00020000, // 128K
0x00040000, // 256K
0x00080000, // 512K
0x00100000, // 1024K
0x00200000, // 2048K
0x00400000, // 4096K
0x00800000 // 8192K
};

How can i declare in __gc clas, in way of using {}

Soory for my poor english

Re: Array

ursus zeta2-Jul-05 8:50

Magaging Document and View Classes inDialog Based Database applications.

2-Jul-05 8:50

Read this at MSDN:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmxspec/html/vcManagedExtensionsSpec_4_5.asp[^]

Array syntax is a little different in the .NET Framework, than it is in just plain old Win32 Visual C++.
The __gc array is declared first with the new operator; optionally, with an integer for the size of the array (although this can be altered, arrays are dynamic). After creating the array, you then initialize it using the element member index. It's pretty simple, really.

Wisdom200428-Jun-05 0:59

Wisdom2004

28-Jun-05 0:59

Hai, I want to use the Dialog Interface for my database applications.

According to the Teach Your Self C++ Book Chapter 15 "The Subject on Database Applications Using ADO. I need to manage the Classes on my Own if I choose Dialog instead of MDI or SDI.

I'am unable to add these classes especially the View Classes. It says I must add a resource file manually.

Just how do I do this.
I would appreciate if you started from the beggining to the end.

regards.
Lk.

Re: Magaging Document and View Classes inDialog Based Database applications.

Sheng Jiang 蒋晟10-Jul-05 14:06

Sheng Jiang 蒋晟

10-Jul-05 14:06

The easist way is to start your application with an MDI or SDI. Since your code is dialog-based, you should not have many porting problem.

http://blog.joycode.com/jiangsheng
http://blog.csdn.net/jiangsheng
Command what is yours
Conquer what is not
---Kane

How to wrapp Friend function in managed c++?

SudhaMakki28-Jun-05 0:51

SudhaMakki

28-Jun-05 0:51

Hi,

I am able to wrapp all the class method in unmanaged c++ into managed c++ but i

could't able to wrapp Friend function. Please let me know if you have any idea.

Here is an example

Class UnManaged{

int i;
public:

UnManaged(int k){ i =k;}

friend int getInt(){return i};

friend bool operator < (Unmanaged *U1, Unmanaged *U2)
{return (U1->i <u2->i);}

}

How can wrapp These two function in my wrapper class called Mangaed.

public __gc class Managed {
Unmanaged __nogc *unmanagedObject

public:
Managed(){unManagedObject = new Unmanaged(10);

}

Thanks in Advance.

-Sudhakar

Re: How to wrapp Friend function in managed c++?

ursus zeta2-Jul-05 8:55

2-Jul-05 8:55

Seems like I read somewhere that friend functions are not allowed in managed classes.
Constraints: A __gc class shall not declare or define friend classes or functions.

Read this:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmxspec/html/vcManagedExtensionsSpec_4.asp[^]

Creating Files

Saksida Bojan27-Jun-05 10:02

27-Jun-05 10:02

I have a database program. I am using accses databese with Microsoft.JET.4 Engine. Can i create a database with jet. If no, then i want to my own program create own database inplented in my project. How can i do this in "Less painful" way.

I hope you understand this, what i have to ask

osamahmirza2-Jul-05 10:07

osamahmirza

2-Jul-05 10:07

hi Saksida Bojan!
The most unpainful way is to create XML files because .NET provides very comprehensive namespace for xml called System::Xml just use this and it will be even easier if you use serialization to deal with your XML files which can be found in System::Xml::Serialization. I have done it in VB and it worked fine for me, provided if you are not going to use very huge data processing.
Hope it helps.
osAma

Saksida Bojan3-Jul-05 3:38

3-Jul-05 3:38

I don't use xml file, but Access database throu Microsoft.Jet.4

afinnell15-Jul-05 15:50

afinnell

15-Jul-05 15:50

You can easily create a Jet database using ADOX.

Here's an example in C#.

http://support.microsoft.com/kb/317881/EN-US/[^]

After you create the catalog you can add tables, then columns. I use this technique in one of my products.

Hope this helps.

-
Drew

Saksida Bojan18-Jul-05 4:35

opening word and passing strings to a word template doc in C++

18-Jul-05 4:35

Thanks. A lot. I'am changing entire core structer, so i don't have a time to test. When i finished then i will implent this structure.

JPARR27-Jun-05 0:37

JPARR

27-Jun-05 0:37

Hi,

do any of you know how to open microsoft word in C++? i need to pass strings out to a template word document to fill in.

(john.parr@logicacmg.com)

I know the VB script method:

'Used to open word and populate CD label values in a word template'
Dim oWordApp
Dim oWordDoc
Set oWordApp = CreateObject("Word.Application")
If oWordApp Is Nothing Then
MsgBox "Couldn't start Word."
Else
oWordApp.visible =true
Set oDoc = oWordApp.Documents.Add("C:\cdtemplate.dot")
with oDoc
.bookmarks("mainTitle1").Range.text="HELLO"
.bookmarks("subTitle1").Range.text="TEST_DATA, PLAN_TEST - 393"
End If

Re: opening word and passing strings to a word template doc in C++

ursus zeta28-Jun-05 10:19