DllImport & C++.NET

[lior6543]

Looking for a code demonstrating how to use "DllImport" in C++.NET.

Couldn't find any examples in C++.NET.

Google is flooded with examples in C#.

It is very important. PLEASE HELP.

[dumbquestion]

Here's a link showing how to import the ShellExecute command in shell32.dll:

http://www.codeguru.com/forum/showthread.php?t=335006


Here's another showing how to import the BitBlt command in gdi32.dll:

http://www.codeguru.com/forum/showthread.php?t=313039


Hope it helps!

[lior6543]

Tnanks!
Though I already found out how to use it.

Let me ask you this:

Are you familiar with the names clash problem while using:

using namespace System::Runtime::InteropServices;

...and then you need to #undef functions ???

[dumbquestion]

Yes, I've had some problems in VC++ .NET with DLL imports and then naming conflicts with the MessageBox class. If I had a form that I did a DLL import in and then in the same form tried to call MessageBox::Show, for example, I would get an error saying:

"error C2653: 'MessageBoxA' : is not a class or namespace name"

I guess Windows and .NET have naming conflicts, so if you add

#undef MessageBox

after your include statements at the top of the form file, the problem goes away.

[lior6543]

thank you for your help!