Detecting mscorlib.dll?

[mccoyn]

I have a header that is included from some files that use mscorlib and some that don't use it. One of the macros in this file uses the __pin keyword. When this header is compiled with a source file that doesn't use mscorlib I get the following error:

fatal error C1190: managed targeted code requires '#using <mscorlib.dll>' and '/clr' optio

I'd like something like the following
#ifnusing mscorlib.dl
#define MY_MACRO(x) __pin
#els
#define MY_MACRO(x)
#endi

Its the first line I'm having trouble with.

[Mattias Sjögren]

I'd like something like the following:
#ifnusing mscorlib.dll

#ifdef _MANAGED

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[mccoyn]

Thanks for the reply

It doesn't work exactly right. It seems to indicate whether the /clr option is used. The way the project is setup now, the entire project has this option and only certain files have the #using statement. So they all end up having _MANAGED defined

If there are no other suggestions I might just change the /clr option on a per file basis.

[Gabi]

Hi Mccoyn
i have the same problem and i solve it in the following way
1) Go To ---Project Property->Configuration Property --->c/c++ --->/cl
2) Go To ---Project Property->Configuration Property --->Code Generation-->Basic Runtime Checks-->Default
3) Go To ---Project Property->Configuration Property --->Code Generation-->Enable Minimal Rebuild--> N
4) Go To ---Project Property->Configuration Property --->c/c++ -->General-->Debug Information Format-->Program Database (/Zi
5) Go To ---Project Property->Configuration Property --->Code Generation-->Runtime Library--><inherit from project defaults

those settings solve the proble
try it
but remember its change the entire project propert
have a nice day
Gabi

[alan93]

your 1.) doesn't make sense. set what to /clr?

I am trying to use XMLTextWriter in a managed code project and got the
same error indicated above.
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[alan93]

if I add /clr to command line under C++ which is what I guess you
meant.

I get:
Command line error D2016 : '/RTC1' and '/clr' command-line options are
incompatible
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[alan93]

i gave up on trying to get XMLTextWriter to work in managed code.
:cry:
This is an e-mail I sent to a microsoft rep and they didn't know why
it wouldn't work.

I am trying to use the XmlTextWriter

class.

I have this in header of a dialog class within project:
#using <System.xml.dll>
using namespace System::Xml;
I have this in the OnInitDialog() as a test:

#pragma push_macro("new")
#undef new
XmlTextWriter *writer = new
XmlTextWriter("c:\\titles.xml", 0);
// Set the formatting
writer->Formatting = Formatting::Indented; // Write the standard document start
writer->WriteStartDocument();

writer->WriteStartElement("geology");
// Start the volcano element
writer->WriteStartElement("volcano");
// Do the name attribute
writer->WriteAttributeString("name", "Mount St.Helens"); // Write the location element

writer->WriteStartElement("location");
writer->WriteString("Washington State, USA"); writer->WriteEndElement();

writer->WriteEndElement();
writer->WriteEndElement();
// Flush and close
writer->Flush();
writer->Close();
#pragma pop_macro("new")
This compiles fine in Debug but not in Release mode which causes the following error message:
"An unhandled exception of type 'System.NullReferenceException' occurred in Project.exe
Additional information: Object reference not set to an instance of an object."

I have adjusted compile switch settings repleatedly to try to get this
to work.