How do I fix this....

[Grasshopper-NET]

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

 

I included all the correct .NET references in my project, but somehow it doesn't distinguish between the Windows version and the .NET version.

[PlausiblyDamp]

Any chance of showing us some code or at least giving a few more details about what you have done / are trying to do.

[Grasshopper-NET]

I'm trying to display an error message using

System::Windosw::Forms::MessageBox::Show();

 

These are my headers:

 

using namespace System;

using namespace System::IO;

using namespace System::Data;

using namespace System::Text;

using namespace System::Windows::Forms;

using namespace System::Collections;

 

/// -----------------------------------------------------------------------

///<summary> Creates a new file in the given path or current directory

/// -----------------------------------------------------------------------

static void CreateNewFile( String* filename, String* text, bool overwrite )

{

StreamWriter* streamWriter;

 

// Check to see if the user is writing over an existing file.

if (File::Exists(filename) && !overwrite)

{

if (MessageBox::Show(S"That file exists. Would you like to overwrite it?", S"File Overwrite?", MessageBoxButtons::YesNo, MessageBoxIcon::Question) == DialogResult::No)

{

// Leave the subroutine

return;

}

}

 

// The StreamWriter must be defined outside of the try-catch block

// in order to reference it in the __finally block.

// Ensure that the creation of the new StreamWriter is wrapped in a

// try-catch block, since an invalid filename could have been used.

try

{

Shared (static) File class.

streamWriter = File::CreateText(filename);

 

// Write the entire contents of the text

// to the StreamWriter in one shot.

streamWriter->Write(text);

streamWriter->Flush();

}

catch (Exception* exc)

{

// Show the error to the user.

MessageBox::Show(String::Concat(S"File could not be created or written to.\r\nPlease verify that the filename is correct, and that you have read permissions for the desired directory.\r\n\r\nException: ", exc->Message), S"File Error", MessageBoxButtons::OK, MessageBoxIcon::Error);

}

__finally

{

// Close the object if it has been created.

if (streamWriter)

streamWriter->Close();

}

};

[mskeel]

Could this be contributing? I think there is also a knowledge base article on the subject but I couldn't find a link.

[Grasshopper-NET]

Thanks, that helped alot. :D