/*_______________________________________

       I N T R O D U C T I O N   T O   P O I N T E R S
	                                  CS121
	     						  Ron Kessler
							Created 10/24/2014
							  Visual Studio 2012

Updated:

10/28/2014- Fixed the format of the hex value returned by the pointers using String::Format({0:X}) style
*/
#pragma once

namespace Intro2Pointers {

	using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;
	using namespace System::Text;

	private: System::Void btnGo_Click(System::Object^  sender, System::EventArgs^  e) 
				 {
				     //---get the names of the variables and assign the initial values
				    try
						{
				    
								int^ myInt = gcnew int;
								myInt =Convert::ToInt32(txtIntValue ->Text->Trim());
								int^ *ptrInt =nullptr;
								ptrInt = &myInt;
					
								//Using String::Format() like this is called composite formatting, the "X" format provides formatting to hexadecimal. 

								//---string hexOutput = String::Format("{0:X8}", value);  X8 = 8 bytes
								String^ intLocHex = String::Format("{0:X8}", (UInt64)&ptrInt);  // cast ptrInt type to unsigned int64
					

										
								double nameOfDouble = Convert::ToDouble(txtDoubleValue->Text->Trim());
								double *ptrDouble =nullptr;
								ptrDouble= &nameOfDouble;
								String^ doubleLocHex = String::Format("{0:X8}", (UInt64)&ptrDouble);  // cast ptrDouble type to unsigned int64
					
								
                               String^ nameOfString = txtStringValue->Text->Trim();
							   String^ *ptrString = nullptr;
								ptrString = &nameOfString;
								String^ stringLocHex = String::Format("{0:X8}", (UInt64)&ptrString);  // cast ptrString type to unsigned int64

								//---now display it
								lblMemLocInt->Text =intLocHex;
													
								lblMemLocDouble->Text = doubleLocHex;
								
								lblMemLocString->Text = stringLocHex;
								
						}
					catch(Exception^ ex)
						{
						    MessageBox::Show("An error occurred while getting this information." + ex->Message,
								"System Message", MessageBoxButtons::OK, MessageBoxIcon::Error);
						}
				 }
};
}