Managed C++/CLI

20-Dec-06 11:43

Yes everything was ok, except i cant get Index key for specific column.

Re: ListView Headrs

bsaksida21-Dec-06 9:09

this has been way too long

21-Dec-06 9:09

Found a workaround this problem:

MessageBox::Show(listView1->Columns[1]->Text);

If i used it in the for loop, i coud get index ot the columns

V.19-Dec-06 2:24

19-Dec-06 2:24

Guys,

I'm trying a little test app in C++. I added a button and an event handler for this button.
I'm creating a test app that has to call some dll functions in late binding. Although I have done this before I tried to do a simple AfxMessageBox just to get the hang of it again. And it fails (yes this line: AfxMessageBox("Test"); fails. Even CString test = "My test here."; fails.)
so what did I forget? (I made a MFC app via the wizard, it gave me an error when adding the control variable for the button, but the rest it did just fine). MSDN says I have to do it like this. (and my memory, pray to God it didn't fail me, says so too;P)

the error message I get is :
Error 1 error C2440: 'initializing' : cannot convert from 'const char [9]' to 'ATL::CSimpleStringT<BaseType>' d:\projects\projects c++\loaddlltest\loaddlltest\loaddlltestdlg.cpp 92

Sigh | :sigh:

tnx...

[MODIFIED]It doesn't work in 2005, it does work in 6.0 ...[/MODIFIED]

V.
If I don't see you in this world, I'll see you in the next one... And don't be late. (Jimi Hendrix)

Re: this has been way too long

led mike19-Dec-06 4:44

Re: this has been way too long

19-Dec-06 4:44

AfxMessageBox(_T("Test"));
CString test = _T("My test here.");

led mike

V.19-Dec-06 4:51

19-Dec-06 4:51

works idd, I'll have to look up why some day Wink | ;-)

.

tnx

V.

Stop smoking so you can: Enjoy longer the money you save.
Moviereview Archive

Re: this has been way too long

led mike19-Dec-06 5:16

19-Dec-06 5:16

I think it is just because the default project settings in VS2005 is UNICODE. Wink | ;)

led mike

WriteFile functionality

g_sasha18-Dec-06 21:41

18-Dec-06 21:41

BOOL WriteFile(
HANDLE hFile, // handle to file to write to
LPCVOID lpBuffer, // pointer to data to write to file
DWORD nNumberOfBytesToWrite, // number of bytes to write
LPDWORD lpNumberOfBytesWritten, // pointer to number of bytes written
LPOVERLAPPED lpOverlapped // pointer to structure for overlapped I/O
);

When using this function and it's return false (failed) can i rely on lpNumberOfBytesWritten value?
(no answer in MSDN)

led mike19-Dec-06 4:49

19-Dec-06 4:49

g_sasha wrote:
(no answer in MSDN)

Really? In the documentation [^]it says:

Return Value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

led mike

g_sasha19-Dec-06 5:08

19-Dec-06 5:08

I asking something else, Can i rely on LPDWORD lpNumberOfBytesWritten,
parameter in case of failure

led mike19-Dec-06 5:18

19-Dec-06 5:18

g_sasha wrote:
in case of failure

don't you think that might depend on what the error from GetLastError is? Roll eyes | :rolleyes:

Why have you not posted the Error information?

led mike

g_sasha19-Dec-06 5:59

19-Dec-06 5:59

There is no error (yet), i dont think it's depend on GetLastError, i think it's should be just yes/no answer.
Can you think of example where it may be depend on error ?

User 58385219-Dec-06 12:05

User 583852

19-Dec-06 12:05

Probably a bad idea. And you're asking in the wrong forum

System.IO.Path.IsPathRooted() does not behave as I would expect

g_sasha19-Dec-06 20:58

System::Windows::Forms Namespace ??

19-Dec-06 20:58

Ok, thx anyway

Fritzables18-Dec-06 15:03

18-Dec-06 15:03

Hi all,

I am writing a console app which will in turn run a windows application then simulate sending keyboard command to the application.

I have been able to run the app and get it's handle and all that - every thing here is fine.

To issue keyboard command I will have to use the

SendKeys::SendWait("%F");

The '%F' simulates the Alt-F to access the menu.

Seeing that SendKeys is a member of the System::Windows::Form namespace I have to include this in my code, which I have done like this:

<br />
#using "System.Windows.Forms.dll"<br />
using namespace System::Windows::Forms;<br />

When I then compile the code, I get the following errors:

: error C3083: 'Windows': the symbol to the left of a '::' must be a type
: error C2039: 'Forms' : is not a member of 'System'
: error C2871: 'Forms' : a namespace with this name does not exist
: error C3083: 'Windows': the symbol to the left of a '::' must be a type
: error C3083: 'Forms': the symbol to the left of a '::' must be a type
: error C3083: 'SendKeys': the symbol to the left of a '::' must be a type
: error C2039: 'SendWait' : is not a member of 'System'
: error C3861: 'SendWait': identifier not found

So, what have I done wrong and how is this rectified ??

Pete

PS: Writing with VC++ 2005

bsaksida18-Dec-06 19:49

18-Dec-06 19:49

you don't need to use #using "System.Windows.Forms.dll"
yust by adding namespace, you aotomaticly add references

Fritzables wrote:
SendKeys::SendWait("%F");

The '%F' simulates the Alt-F to access the menu.

Dou you men like this:
menu1->Text = "&File"; // ALT-F
menu2->Text = "&Edit"; // ALT-E
menu3->Text = "E&xit"; // ALT-X

Fritzables19-Dec-06 12:45

19-Dec-06 12:45

Ok..... I have now taken out the line:

<br />
#using "System.Windows.Forms.dll"<br />

And now just using:

<br />
using namespace System::Windows::Forms;<br />

But still when compiling I get the following errors:

<br />
: error C3083: 'Windows': the symbol to the left of a '::' must be a type<br />
: error C2039: 'Forms' : is not a member of 'System'<br />
: error C2871: 'Forms' : a namespace with this name does not exist<br />

Pete

GirishKB19-Dec-06 19:36

GirishKB

19-Dec-06 19:36

Have you added a reference to the "System.Windows.Forms.dll" ?

If not, reference this dll in your project and then try compiling the code.

Hope this might help you.

Girish K

Fritzables19-Dec-06 20:07

19-Dec-06 20:07

G'Day Girish,

Yea, I had that in my original code:

<br />
#using <System.Windows.Forms.dll><br />

and also had:

<br />
using namespace System::Windows::Forms;<br />

But I was told to take the top line out as the namespace will reference the DLL.
But when I compile either way I still get that same error code.

Pete

bsaksida19-Dec-06 20:40

19-Dec-06 20:40

go to menu:
Project->(Your Project Name) Properties->Common Properties

On the right you will see references And you can click Add Reference.

Other oproblem coud be: Under General, look if you have Common Language Runtime Support. As long as you have with /clr

Third possible. You can have problem with a code. If so then try to add a comment to all includes.

If you have a problem with client, yust to be same make an test project. But this namespace would automaticly be in use

Fritzables19-Dec-06 21:06

19-Dec-06 21:06

G'Day bsaksida,

Have a look at my reply to Girish......

Thanks for the hand on this.

Pete

GirishKB19-Dec-06 20:41

GirishKB

19-Dec-06 20:41

Hi Pete,

I am not sure whether you got my query correctly.
Try this ,
Right click on the Project and Choose References. Then Add reference to "System.Windows.Forms.dll".
Try to compile your code after you have added this line

using namespace System::Windows::Forms;

Compile and check if it works.

If this does not work, then please post your code snippet..

Thanks & Regards,
Girish K

Fritzables19-Dec-06 21:04

19-Dec-06 21:04

G'Day Girish,

Yep ya right.... thought you meant #using

You know us Aussies.... a bit slow Big Grin | :-D

Thanks for the tip off and will try again in the morn when I get back to work.

Take care mate and have a good one.

Pete

Fritzables20-Dec-06 10:13

20-Dec-06 10:13

Hey Girish,

I have just tried your suggestion - and I am back up and running.
Thanks again and have a great Xmas.

Pete