.NET (Core and Framework)

Re: Fun with compiler errors

30-Jul-04 8:22

I'm getting these errors as I try to upgrade an visual studio 6.0 project to .NET. Sigh | :sigh:

1)"error C2628: 'wchar_t' followed by 'unsigned' is illegal (did you forget a ';'?)"

which points to this part of the code

typedef wchar_t WCHAR; // wc, 16-bit UNICODE character

in the "c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinNT.h" file

2) "error C2371: 'BOOLEAN' : redefinition; different basic types."

which points to this part of the code

typedef BYTE BOOLEAN;

in the "c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinNT.h file."

and last but NOT least,

3) "error C2371: 'BOOLEAN' : redefinition; different basic types."

which points to this part of the code

/* For backward compatibility */
typedef VARIANT_BOOL _VARIANT_BOOL;

#else
/* ANSI C/C++ reserve bool as keyword */
#define _VARIANT_BOOL /##/
#endif
typedef boolean BOOLEAN;

in the "c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WTypes.h file."

Is there a way to NOT include these files when I compile? OMG | :OMG:

Eric Reynolds4-Aug-04 5:04

Eric Reynolds

4-Aug-04 5:04

There's an easy way to stop WTypes.h not being included and that is to

#define __wtypes_h__

at the beginning of your source file, or even just add __wtypes_h__ as a defined macro in your project settings.

This may well not solve your problems, however.

Re: Fun with compiler errors

adonisv4-Aug-04 17:20

Re: Fun with compiler errors

4-Aug-04 17:20

Ok I'll try that thanks... Big Grin | :-D

adonisv11-Aug-04 11:59

I dont get this compiler setting conflict!

11-Aug-04 11:59

That actually gave me more errors. D'Oh! | :doh:

Where would you suggest putting this macro in the project settings? Under which tab?? Unsure | :~

adonisv30-Jul-04 7:16

Re: I dont get this compiler setting conflict!

30-Jul-04 7:16

These are my settings in Project, Properties, C++, Command Line.

/Od /AI ".\..\Bin" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_AFXDLL" /D "_MBCS" /FD /EHsc /RTCs /MDd /GS /Yu"stdafx.h" /Fp".\Debug/AdoManRs.pch" /Fo".\Debug/" /Fd".\Debug/" /W3 /nologo /c /Zi /clr /TP Confused | :confused:

But I keep gettting the error that /RTC1 and /clr are incompatible. WTF | :WTF:

cl : Command line error D2016 : '/RTC1' and '/clr' command-line options are incompatible

I don't see that those two options are being used. I've tried every combination of compiler options but I just get the same error. D'Oh! | :doh:

leppie30-Jul-04 8:06

Re: I dont get this compiler setting conflict!

30-Jul-04 8:06

/clr is activate via the "use managed extensions" option in the general page.
/RTCx is enabled via C++/Code Generation/Basic Runtime checks.

Looking up the Compiler error code ~~will~~ should give a better explaination too. (in this case it doesnt Dead | X|

)

^{top secret xacc-ide 0.0.1}

adonisv30-Jul-04 8:12

New features in .net 2 beta

30-Jul-04 8:12

Thanks that worked! Roll eyes | :rolleyes:

SirErugor30-Jul-04 5:22

SirErugor

30-Jul-04 5:22

Salutations mateys....

I was wondering about the new features in .net framework 2 beta.. Can anyone tell me or give me a list of the new features?

Thank you in advance Smile | :)

Morten Kristensen aka. Sir Erugor

Re: New features in .net 2 beta

leppie30-Jul-04 7:52

Processing after suspend or hibernate

30-Jul-04 7:52

This is good starting point, I dont see much info now, but im sure it will fill up.

http://msdn.microsoft.com/netframework/downloads/updates/fw20readme.aspx[^]

^{top secret xacc-ide 0.0.1}

Andy Henderson30-Jul-04 3:35

30-Jul-04 3:35

In W2K and XP, when you resume after a suspend or hibernate the OS asks you to provide a user id and password. While this is happening, the suspended programs continue to run in the background.

Does anyone know how to detect this is happening from within the program? I'd like to suspend processing in my program until the user has logged on.

Andy

leppie30-Jul-04 8:11

30-Jul-04 8:11

Enviroment.UserInteractive , mite be of help.

^{top secret xacc-ide 0.0.1}

Andy Henderson31-Jul-04 23:55

31-Jul-04 23:55

Thanks for the suggestion, but that is specific to services. For ordinary programs running on the desktop it always returns 'True'. I ran a test just to be sure.

Thanks anyway,

Andy

leppie2-Aug-04 1:20

2-Aug-04 1:20

Andy Henderson wrote:
is specific to services.

Oops didnt know that Smile | :)

Will add to my knowledge base! Another suggestion, you can perhaps look if a handle has been created, that failing query the size of the form, if size.empty normally the program is in a minimized state, but u could check for that, it mite be diffenrent in your case.

^{top secret xacc-ide 0.0.1}

Andy Henderson2-Aug-04 3:37

2-Aug-04 3:37

Thanks again for the suggestion, but no good either. The program runs in what it thinks is a normal environment - it even has a current user even though a log in screen is being displayed!

I guess there might be some kind of system message, but I don't know where to get a list of them from.

Andy

Andy Henderson3-Aug-04 8:20

3-Aug-04 8:20

After a lot of research I managed to answer my own question. During the log in process the OS displays a different desktop - and that can be detected in a VB.net program as follows...

Declare Function GetThreadDesktop Lib "User32" (ByVal dwThread As Integer) As Integer
Declare Function OpenInputDesktop Lib "User32" (ByVal dwFlags As Integer, ByVal fInherit As Boolean, ByVal dwDesiredAccess As Integer) As Integer
Declare Function GetUserObjectInformation Lib "User32" Alias "GetUserObjectInformationA" (ByVal hObj As Integer, ByVal nIndex As Integer, ByRef pvInfo As Byte, ByVal nLength As Integer, ByRef lpnLengthNeeded As Integer) As Integer

...

Dim MyDesktopName(254) As Byte
Dim MyDesktopNameLength As Integer = 0
Dim InputDesktopName(254) As Byte
Dim InputDesktopNameLength As Integer = 0
Dim StringLength As Integer = 255
Dim UOI_Name As Integer = 2
Dim x As Integer
Dim z As Integer

...

'Get name of the program's desktop
x = GetThreadDesktop(AppDomain.GetCurrentThreadId)
z = GetUserObjectInformation(x, UOI_Name, MyDesktopName(0), StringLength, MyDesktopNameLength)

'Get name of the active desktop
x = OpenInputDesktop(0, False, 0)
z = GetUserObjectInformation(x, UOI_Name, InputDesktopName(0), StringLength, InputDesktopNameLength)

For i = 0 To 254
If InputDesktopName(i) <> MyDesktopName(i) Then
'Here if the program is not running on the active desktop
'Eg. if login screen is showing after hibernate or suspend,
'or a password-protected screen saver.
End If
If InputDesktopName(i) = 0 Then Exit For
Next

Andy

Question on REMOTING

DragonFox30-Jul-04 1:29

DragonFox

30-Jul-04 1:29

Hi Everyone,

I am trying to figure out how to create an application that uses a database. However, I would like my application to be setup in such a way that it can use the data from another person that is using the same software.

Example: (I am a bird watcher) I have an application that tracks all the birds I see as well as the pictures I have of them. All the data is contained in a MS-Access database and is on my local system.

What I would like to do is to be able to modify the "data getting functions" in such a way as to be able to get the data from another person's computer who is running the same application. Also, That other person would be able to read information from my database.

All the examples I see in remoting are related to having a client and host that are 2 different computers. There is no example of being able to remote on to yourself. The fact that your class has to be registered as client or host exclusively suggests that it cannot be done.

Anyone have any clues ?

Thanks
Gary

Just for the fun of it !

Re: Question on REMOTING

leppie30-Jul-04 8:14