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Pointer help in C#

 
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Pointer help in C#
jacobjordan
post 28 Aug, 2008 - 04:40 PM
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Here's my problem. I have this line of code in an unsafe context:
csharp

TreeNode* Current = null;

it gives me an error that says "Cannot take the address of, get the size of, or declare a pointer to a managed type ("System.Windows.Forms.TreeNode")"
The C++ equivalent of that line would be
cpp

System::Windows::Forms::TreeNode *Current = 0;

and in C++, i can avoid that error by using the '^' operator like so
cpp

System::Windows::Forms::TreeNode^ *Current = 0;

however, i know little to nothing about C++, and i have no idea what the '^' operator does. If anyone knows a way to implement this in C#, please let me know.
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knightyknight
post 6 Sep, 2008 - 04:20 AM
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As far as I know you can only declare pointers to base types such as int and byte that might be why.
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gabehabe
post 6 Sep, 2008 - 05:56 AM
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You're right, you can only have a pointer to base types and arrays in C#

[click]

What is it that you're aiming to do? It's most likely possible without a pointer.

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jacobjordan
post 6 Sep, 2008 - 02:52 PM
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I was aiming to load a treeview from an XML file format i made. However, i have since found a way to do this without a pointer, so this question's ancient history.

However, i'm still clueless on what the '^' operator does when declaring a variable in C++ like System::Windows::Forms::Form^ Whatever;. Anyone care to enlighten me?

This post has been edited by jacobjordan: 6 Sep, 2008 - 02:53 PM
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