Managed C++/CLI

#include "stdafx.h"
#include <iostream>

using namespace std;

struct
{
      char c1;
      int i1;
      char c2;
      int i2;

}a;

 

struct
{
      int i1;
      int i2;
      char c1;
      char c2;
}b;                           

 

int main()

{
	cout<<"sizeof struct A " <<sizeof(a);
	cout<<"sizeof struct B " <<sizeof(b);
	getchar();
	return(0);
}

private: System::Void OnClicked_ID_GETPHOTO_DIR(System::Object^  sender, System::EventArgs^  e) {<br />
			Thread^ newThread = gcnew Thread ( gcnew ThreadStart( this, &Picture_Importer::Form_Start::Get_Directory ) );<br />
			newThread->SetApartmentState(ApartmentState::STA);<br />
			newThread->Start();<br />
		}<br />
<br />
private: void Get_Directory() {<br />
		 	// Set defaults for Browsing<br />
			this->folderBrowserDialog1->SelectedPath = "c:\\";<br />
			     <br />
			// Set the help text description for the FolderBrowserDialog.<br />
			this->folderBrowserDialog1->Description = "Select the directory that you want to use as the default.";<br />
<br />
			// Do not allow the user to create new files via the FolderBrowserDialog.<br />
			this->folderBrowserDialog1->ShowNewFolderButton = false;<br />
			<br />
			// Show the FolderBrowserDialog.<br />
			System::Windows::Forms::DialogResult result = folderBrowserDialog1->ShowDialog();<br />
			if ( result == ::DialogResult::OK )<br />
			//if (folderBrowserDialog1->ShowDialog() == ::DialogResult::OK)<br />
				  {<br />
					 folderName = folderBrowserDialog1->SelectedPath;<br />
					 this->ID_PHOTO_DIR->Text = folderName;<br />
				  }<br />
		 <br />
		 }

An unhandled exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll<br />
<br />
Additional information: Cross-thread operation not valid: Control 'ID_PHOTO_DIR' access from a thread other than the thread it was created on.

-I"C:\Borland\BCC55\Include"<br />
-L"C:\Borland\BCC55\Lib;C:\Borland\BCC55\Lib\PSDK<br />
-P<br />
-v-<br />
-w<br />
-D_WIN32_WINNT=0x0400

-v-<br />
-x<br />
-L"C:\Borland\BCC55\Lib;C:\Borland\BCC55\Lib\PSDK;C:\WINDOWS\system32"

Borland C++ 5.5.1 for Win32 Copyright (c) 1993, 2000 Borland<br />
thread.c:<br />
Error E2268 thread.c 30: Call to undefined function '_beginthread' in function main()<br />
Error E2268 thread.c 46: Call to undefined function '_endthread' in function ThreadProc(void *)<br />
*** 2 errors in Compile ***<br />