Counting letters in a string

[Quantum7]

I just have a couple more errors to get rid of so far:

1>NTS.cpp(132): error C2065: 'cli_msg' : undeclared identifier
1>NTS.cpp(133): error C2660: 'System::IntPtr::ToPointer' : function does not take 1 arguments

I have looked all over the place for the right namespace or #include that will support those identifiers.

[Imadatobanisa]

Please post your entire code here.

[andywestken]

#1 cli_msg is just the name I chose for my variable. Use whatever name you used for your variable. (In my easrlier post, I assumed my code fragments ran on from each other).

String^ my_str = gcnew String(etc); // etc already declared

#2 IntPtr::ToPointer doesn't take one argument. It's called againt a variable without an arguent.

Andy

PS MSDN is the place you need to for .Net info -- http://msdn.microsoft.com -- rather than cplusplus.com's reference -- which is for (native) C++

[Quantum7]

Alright, the program compiles correctly so far with converting the String to the char. Here is what I put together so far, just to make sure that everything is in its right place:

            String^ cli_str = gcnew String(cli_str);
	    char buffer[1024]; // need to be careful with buffer size in real code
	    IntPtr hglob = Marshal::StringToHGlobalAnsi(cli_str);
	    char* str = static_cast<char*>(hglob.ToPointer());
	    strcpy_s(buffer, str);
	    Marshal::FreeHGlobal(hglob);

[andywestken]

Your first line is going to cause confusion. You're feeding the new variable back into its own constructor...

[Quantum7]

What is etc then and what type is it?

[andywestken]

"etc" is whatever char* variable you need to convert to a System::String

Looking back at the thread, this should have been obvious from earlier examples (see e.g. my post of Nov 21, 2012 at 3:03am)

[Quantum7]

Alright, that issue is done with. Now, I got the textBox linking issue with:
String^ input = this->textBox1->Text = cli_str;


The following compiler errors have occurred:

1>NTS.cpp(106): error C2065: 'str' : undeclared identifier
1>NTS.cpp(113): error C2355: 'this' : can only be referenced inside non-static member functions
1>NTS.cpp(113): error C2227: left of '->textBox1' must point to class/struct/union/generic type
1>NTS.cpp(113): error C2227: left of '->Text' must point to class/struct/union/generic type

[andywestken]

Those are compiler errors. To fix them you just need to use the right variable name. And call the functions inside a membe function of the form.

All these error are minor, generic C++ errors. See the cplusplus.com tutorials for information about varaibles and classes (inc. static vs other members)