Problem mit DialogResult.

Das ist möglich ja. Ihr müsst aber noch etwas abwandeln, da es viele Abhängigkeiten in der von der Hauptklasse zu Unterklassen gibt. Ich bin das ja schon schritt für schritt durchgegangen. Daher verstehe ich das nicht. Da liegt ja das Problem.

die Form1.h:

Code:
#pragma once
#include "stdafx.h"
#include "Antwort.h"
#include "AntwortDaten.h"
#include "Pruefung_hinzufuegen.h"
#include "Pruefung_auswaehlen.h"
#include "SchreibKoordinaten.h"
#include "HackenTest.h"

namespace Correctus {
	
	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::Drawing::Imaging;
	using namespace System::Collections::Generic;
	


	/// <summary>
	/// Zusammenfassung für Form1
	/// </summary>
	public ref class Form1 : public System::Windows::Forms::Form
	{
	private:
		bool mouseDown;
		bool radieren;
		List<AntwortDaten^> ^faecher;
		List<SchreibKoordinaten^>^ point;
		int anzahl_gezeichnet;
		Graphics^ layer;
		Pen ^pen1;
		Pen ^penRed;
		Point p;
		System::Drawing::Region ^region1;
		HackenTest ^tester;
		System::Windows::Forms::ContextMenu ^contM;
		
		
	private: System::Windows::Forms::ToolStripMenuItem^  neuePruefungenHinzufuegenToolStripMenuItem;
	private: System::Windows::Forms::Label^  label1;
	private: System::Windows::Forms::ContextMenuStrip^  contextMenuStrip1;
	private: System::Windows::Forms::ToolStripMenuItem^  toolStripMenuItem2;
	private: System::Windows::Forms::ToolStripMenuItem^  radierenToolStripMenuItem;





	public:
		Image ^img;

		Form1(void)
		{
			
			InitializeComponent();
			faecher = gcnew List<AntwortDaten^>();
			faecher->Add(gcnew AntwortDaten("Mathe", "2. Semester", "335331"));
			faecher->Add(gcnew AntwortDaten("Mathe", "2. Semester", "335332"));
			faecher->Add(gcnew AntwortDaten("Mathe", "3. Semester", "335333"));
			faecher->Add(gcnew AntwortDaten("Mathe", "3. Semester", "335334"));
			faecher->Add(gcnew AntwortDaten("Mathe", "4. Semester", "335335"));
			faecher->Add(gcnew AntwortDaten("Mathe", "4. Semester", "335336"));

			faecher->Add(gcnew AntwortDaten("Deutsch", "2. Semester", "435331"));
			faecher->Add(gcnew AntwortDaten("Deutsch", "2. Semester", "435332"));
			faecher->Add(gcnew AntwortDaten("Deutsch", "3. Semester", "435333"));
			faecher->Add(gcnew AntwortDaten("Deutsch", "3. Semester", "435334"));
			faecher->Add(gcnew AntwortDaten("Deutsch", "4. Semester", "435335"));
			faecher->Add(gcnew AntwortDaten("Deutsch", "4. Semester", "435336"));
			point = gcnew List<SchreibKoordinaten^>();
			anzahl_gezeichnet = 0;
			mouseDown = false;
			radieren = false;
			pen1 = gcnew Pen(Color::Green, 1);
			penRed = gcnew Pen(Color::Red, 1);
			
			
			
		 ResizeRedraw = true;
         img = nullptr;
         
		 //zuweisung der Scrollbars
         hScrollBar1->Parent = pictureBox1;
         vScrollBar1->Parent = pictureBox1;
         hScrollBar1->Visible = false;
         vScrollBar1->Visible = false; 

		 //Definierung und Deklarierung der Open- und SaveDileDialog
         openFileDialog1 = gcnew OpenFileDialog();
         openFileDialog1->InitialDirectory = ".";
         openFileDialog1->Filter = "Windows Bitmap (*.bmp) | *.bmp"
                                 + "| JPEG (*.jpg) | *.jpg"
                                 + "| PNG (*.png) | *.png"
                                 + "| Windows Metafile (*.wmf) | *.wmf"
                                 + "| Grafikdatei (*.bmp;*.jpg;*.png;*.wmf) "
                                                 + "| *.bmp;*.jpg;*.png;*.wmf";
         openFileDialog1->FilterIndex = 5;
         openFileDialog1->Multiselect = false;
         openFileDialog1->RestoreDirectory = true;
         
         saveFileDialog1 = gcnew SaveFileDialog();
         saveFileDialog1->InitialDirectory = ".";
         saveFileDialog1->Filter = "Windows Bitmap (*.bmp) | *.bmp"
                                 + "| JPEG (*.jpg) | *.jpg"
                                 + "| PNG (*.png) | *.png";
         saveFileDialog1->FilterIndex = 1;
         saveFileDialog1->RestoreDirectory = true;

		}

	protected:
		/// <summary>
		/// Verwendete Ressourcen bereinigen.
		/// </summary>
		~Form1()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::MenuStrip^  menuStrip1;
	protected: 
	private: System::Windows::Forms::ToolStripMenuItem^  dateiToolStripMenuItem;
	private: System::Windows::Forms::ToolStripMenuItem^  oeffnenToolStripMenuItem;

	private: System::Windows::Forms::ToolStripMenuItem^  speichernToolStripMenuItem;
	private: System::Windows::Forms::ToolStripSeparator^  toolStripSeparator1;
	private: System::Windows::Forms::ToolStripMenuItem^  beendenToolStripMenuItem;
	private: System::Windows::Forms::PictureBox^  pictureBox1;
	private: System::Windows::Forms::SaveFileDialog^  saveFileDialog1;
	private: System::Windows::Forms::OpenFileDialog^  openFileDialog1;
	private: System::Windows::Forms::HScrollBar^  hScrollBar1;
	private: System::Windows::Forms::VScrollBar^  vScrollBar1;




	private: System::Windows::Forms::ToolStripMenuItem^  loesungenToolStripMenuItem;

	private: System::Windows::Forms::ToolStripMenuItem^  pruefungAuswaehlenToolStripMenuItem;

private: System::ComponentModel::IContainer^  components;





	private:
		/// <summary>
		/// Erforderliche Designervariable.
		/// </summary>


#pragma region Windows Form Designer generated code
		/// <summary>
		/// Erforderliche Methode für die Designerunterstützung.
		/// Der Inhalt der Methode darf nicht mit dem Code-Editor geändert werden.
		/// </summary>
		void InitializeComponent(void)
		{
			this->components = (gcnew System::ComponentModel::Container());
			this->menuStrip1 = (gcnew System::Windows::Forms::MenuStrip());
			this->dateiToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->oeffnenToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->speichernToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->toolStripSeparator1 = (gcnew System::Windows::Forms::ToolStripSeparator());
			this->beendenToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->loesungenToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->pruefungAuswaehlenToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->neuePruefungenHinzufuegenToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->radierenToolStripMenuItem = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->pictureBox1 = (gcnew System::Windows::Forms::PictureBox());
			this->saveFileDialog1 = (gcnew System::Windows::Forms::SaveFileDialog());
			this->openFileDialog1 = (gcnew System::Windows::Forms::OpenFileDialog());
			this->hScrollBar1 = (gcnew System::Windows::Forms::HScrollBar());
			this->vScrollBar1 = (gcnew System::Windows::Forms::VScrollBar());
			this->label1 = (gcnew System::Windows::Forms::Label());
			this->contextMenuStrip1 = (gcnew System::Windows::Forms::ContextMenuStrip(this->components));
			this->toolStripMenuItem2 = (gcnew System::Windows::Forms::ToolStripMenuItem());
			this->menuStrip1->SuspendLayout();
			(cli::safe_cast<System::ComponentModel::ISupportInitialize^  >(this->pictureBox1))->BeginInit();
			this->contextMenuStrip1->SuspendLayout();
			this->SuspendLayout();
			// 
			// menuStrip1
			// 
			this->menuStrip1->Items->AddRange(gcnew cli::array< System::Windows::Forms::ToolStripItem^  >(3) {this->dateiToolStripMenuItem, 
				this->loesungenToolStripMenuItem, this->radierenToolStripMenuItem});
			this->menuStrip1->Location = System::Drawing::Point(0, 0);
			this->menuStrip1->Name = L"menuStrip1";
			this->menuStrip1->Size = System::Drawing::Size(712, 24);
			this->menuStrip1->TabIndex = 0;
			this->menuStrip1->Text = L"menuStrip1";
			// 
			// dateiToolStripMenuItem
			// 
			this->dateiToolStripMenuItem->DropDownItems->AddRange(gcnew cli::array< System::Windows::Forms::ToolStripItem^  >(4) {this->oeffnenToolStripMenuItem, 
				this->speichernToolStripMenuItem, this->toolStripSeparator1, this->beendenToolStripMenuItem});
			this->dateiToolStripMenuItem->Name = L"dateiToolStripMenuItem";
			this->dateiToolStripMenuItem->Size = System::Drawing::Size(46, 20);
			this->dateiToolStripMenuItem->Text = L"&Datei";
			// 
			// oeffnenToolStripMenuItem
			// 
			this->oeffnenToolStripMenuItem->Name = L"oeffnenToolStripMenuItem";
			this->oeffnenToolStripMenuItem->Size = System::Drawing::Size(128, 22);
			this->oeffnenToolStripMenuItem->Text = L"Ö&ffnen";
			this->oeffnenToolStripMenuItem->Click += gcnew System::EventHandler(this, &Form1::oeffnenToolStripMenuItem_Click);
			// 
			// speichernToolStripMenuItem
			// 
			this->speichernToolStripMenuItem->Name = L"speichernToolStripMenuItem";
			this->speichernToolStripMenuItem->Size = System::Drawing::Size(128, 22);
			this->speichernToolStripMenuItem->Text = L"S&peichern";
			this->speichernToolStripMenuItem->Click += gcnew System::EventHandler(this, &Form1::speichernToolStripMenuItem_Click);
			// 
			// toolStripSeparator1
			// 
			this->toolStripSeparator1->Name = L"toolStripSeparator1";
			this->toolStripSeparator1->Size = System::Drawing::Size(125, 6);
			// 
			// beendenToolStripMenuItem
			// 
			this->beendenToolStripMenuItem->Name = L"beendenToolStripMenuItem";
			this->beendenToolStripMenuItem->Size = System::Drawing::Size(128, 22);
			this->beendenToolStripMenuItem->Text = L"&Schliessen";
			this->beendenToolStripMenuItem->Click += gcnew System::EventHandler(this, &Form1::beendenToolStripMenuItem_Click);
			// 
			// loesungenToolStripMenuItem
			// 
			this->loesungenToolStripMenuItem->DropDownItems->AddRange(gcnew cli::array< System::Windows::Forms::ToolStripItem^  >(2) {this->pruefungAuswaehlenToolStripMenuItem, 
				this->neuePruefungenHinzufuegenToolStripMenuItem});
			this->loesungenToolStripMenuItem->Name = L"loesungenToolStripMenuItem";
			this->loesungenToolStripMenuItem->Size = System::Drawing::Size(71, 20);
			this->loesungenToolStripMenuItem->Text = L"Lösungen";
			// 
			// pruefungAuswaehlenToolStripMenuItem
			// 
			this->pruefungAuswaehlenToolStripMenuItem->Name = L"pruefungAuswaehlenToolStripMenuItem";
			this->pruefungAuswaehlenToolStripMenuItem->Size = System::Drawing::Size(224, 22);
			this->pruefungAuswaehlenToolStripMenuItem->Text = L"Prüfung auswählen";
			this->pruefungAuswaehlenToolStripMenuItem->Click += gcnew System::EventHandler(this, &Form1::pruefungAuswaehlenToolStripMenuItem_Click);
			// 
			// neuePruefungenHinzufuegenToolStripMenuItem
			// 
			this->neuePruefungenHinzufuegenToolStripMenuItem->Name = L"neuePruefungenHinzufuegenToolStripMenuItem";
			this->neuePruefungenHinzufuegenToolStripMenuItem->Size = System::Drawing::Size(224, 22);
			this->neuePruefungenHinzufuegenToolStripMenuItem->Text = L"Neue Prüfungen hinzufügen";
			this->neuePruefungenHinzufuegenToolStripMenuItem->Click += gcnew System::EventHandler(this, &Form1::neuePruefungenHinzufuegenToolStripMenuItem_Click);
			// 
			// radierenToolStripMenuItem
			// 
			this->radierenToolStripMenuItem->Name = L"radierenToolStripMenuItem";
			this->radierenToolStripMenuItem->Size = System::Drawing::Size(82, 20);
			this->radierenToolStripMenuItem->Text = L"Rückgängig";
			this->radierenToolStripMenuItem->Click += gcnew System::EventHandler(this, &Form1::radierenToolStripMenuItem_Click);
			// 
			// pictureBox1
			// 
			this->pictureBox1->BackColor = System::Drawing::SystemColors::Control;
			this->pictureBox1->Dock = System::Windows::Forms::DockStyle::Fill;
			this->pictureBox1->Location = System::Drawing::Point(0, 24);
			this->pictureBox1->Name = L"pictureBox1";
			this->pictureBox1->Size = System::Drawing::Size(712, 272);
			this->pictureBox1->SizeMode = System::Windows::Forms::PictureBoxSizeMode::StretchImage;
			this->pictureBox1->TabIndex = 1;
			this->pictureBox1->TabStop = false;
			this->pictureBox1->Visible = false;
			this->pictureBox1->Paint += gcnew System::Windows::Forms::PaintEventHandler(this, &Form1::pictureBox1_Paint);
			this->pictureBox1->MouseDown += gcnew System::Windows::Forms::MouseEventHandler(this, &Form1::pictureBox1_MouseDown);
			this->pictureBox1->MouseMove += gcnew System::Windows::Forms::MouseEventHandler(this, &Form1::pictureBox1_MouseMove);
			this->pictureBox1->MouseUp += gcnew System::Windows::Forms::MouseEventHandler(this, &Form1::pictureBox1_MouseUp);
			this->pictureBox1->Resize += gcnew System::EventHandler(this, &Form1::pictureBox1_Resize);
			// 
			// openFileDialog1
			// 
			this->openFileDialog1->FileName = L"openFileDialog1";
			// 
			// hScrollBar1
			// 
			this->hScrollBar1->Dock = System::Windows::Forms::DockStyle::Bottom;
			this->hScrollBar1->Location = System::Drawing::Point(0, 751);
			this->hScrollBar1->Name = L"hScrollBar1";
			this->hScrollBar1->Size = System::Drawing::Size(1024, 17);
			this->hScrollBar1->TabIndex = 2;
			this->hScrollBar1->Scroll += gcnew System::Windows::Forms::ScrollEventHandler(this, &Form1::hScrollBar1_Scroll);
			// 
			// vScrollBar1
			// 
			this->vScrollBar1->Dock = System::Windows::Forms::DockStyle::Right;
			this->vScrollBar1->Location = System::Drawing::Point(1007, 24);
			this->vScrollBar1->Name = L"vScrollBar1";
			this->vScrollBar1->Size = System::Drawing::Size(17, 727);
			this->vScrollBar1->TabIndex = 3;
			this->vScrollBar1->Scroll += gcnew System::Windows::Forms::ScrollEventHandler(this, &Form1::vScrollBar1_Scroll);
			// 
			// label1
			// 
			this->label1->AutoSize = true;
			this->label1->Location = System::Drawing::Point(561, 8);
			this->label1->Name = L"label1";
			this->label1->Size = System::Drawing::Size(35, 13);
			this->label1->TabIndex = 2;
			this->label1->Text = L"label1";
			// 
			// contextMenuStrip1
			// 
			this->contextMenuStrip1->Items->AddRange(gcnew cli::array< System::Windows::Forms::ToolStripItem^  >(1) {this->toolStripMenuItem2});
			this->contextMenuStrip1->Name = L"contextMenuStrip1";
			this->contextMenuStrip1->Size = System::Drawing::Size(84, 26);
			this->contextMenuStrip1->Text = L"Antworten";
			// 
			// toolStripMenuItem2
			// 
			this->toolStripMenuItem2->Name = L"toolStripMenuItem2";
			this->toolStripMenuItem2->Size = System::Drawing::Size(83, 22);
			this->toolStripMenuItem2->Text = L"1.";
			// 
			// Form1
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(712, 296);
			this->Controls->Add(this->label1);
			this->Controls->Add(this->pictureBox1);
			this->Controls->Add(this->menuStrip1);
			this->MainMenuStrip = this->menuStrip1;
			this->Name = L"Form1";
			this->Text = L"Correctus";
			this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);
			this->menuStrip1->ResumeLayout(false);
			this->menuStrip1->PerformLayout();
			(cli::safe_cast<System::ComponentModel::ISupportInitialize^  >(this->pictureBox1))->EndInit();
			this->contextMenuStrip1->ResumeLayout(false);
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion
	private:
		//öffnen der gescannten Bilder
		System::Void oeffnenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e);

		//Speichern 
		void speichernToolStripMenuItem_Click(Object^  sender, EventArgs^  e);
		//beim laden Fenster Maximieren
		System::Void Form1_Load(System::Object^  sender, System::EventArgs^  e) {
			 WindowState = FormWindowState::Maximized;
		 }

		 //Beenden-Methode
		System::Void beendenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e) {
			sicherheitsAbfrage();
		 }
		void pictureBox1_Resize(Object^ sender, EventArgs^ e);

		 //siehe Methodenrumpf
		 void setScrollBars();

		 //Refresh bei scrollen der vertikalen Scrollbar
		System::Void vScrollBar1_Scroll(System::Object^  sender, System::Windows::Forms::ScrollEventArgs^  e) {
			 pictureBox1->Refresh();
		 }

		 //Refresh bei scrollen der horizontalen Scrollbar
		 System::Void hScrollBar1_Scroll(System::Object^  sender, System::Windows::Forms::ScrollEventArgs^  e) {
			 pictureBox1->Refresh();
		 }
		 
		 //Neuzeichnung der Imagebox
		 System::Void pictureBox1_Paint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e);

		
	
		 //Prüfung auswählen
		 System::Void pruefungAuswaehlenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e) {
			 Pruefung_auswaehlen^ zeigePruefung_auswaehlen = gcnew Pruefung_auswaehlen(faecher);
			 zeigePruefung_auswaehlen->ShowDialog();
		 }

		 // Neue Lösung in die jeweilige Prüfung einfügen
		 System::Void neueLoesungenHinzufuegenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e) {
			// faecher->
		 }

		 //hier wird eine neue Prüfung dem Array hinzugefügt
		 System::Void neuePruefungenHinzufuegenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e) {
			 Pruefung_hinzufuegen^ zeigePruefung_hinzufuegen = gcnew Pruefung_hinzufuegen(faecher);
			 zeigePruefung_hinzufuegen->ShowDialog();
		 }


private: System::Void pictureBox1_MouseDown(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e);
private: System::Void pictureBox1_MouseMove(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e);
private: System::Void pictureBox1_MouseUp(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e);
		 System::Void menuItem1_Click(System::Object^ sender, System::EventArgs ^e);
		 void aufbauAntworten();
		 void zeichneNach();
		 void sicherheitsAbfrage();
private: System::Void radierenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e);
		 void speichern();
};
}

die Form1.cpp:

Code:
#include "stdafx.h"
#include "Form1.h"

namespace Correctus {
	void Form1::oeffnenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e) {
				 if (openFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
         {
             // Bild laden
            img = Image::FromFile(openFileDialog1->FileName);
             
             // Rendering des Bildes anstoßen
			 
             pictureBox1->Image = img;
			 pictureBox1->Visible = true;
			 layer = Graphics::FromImage(img);
			 
			
			 
			 
                 
             // Bildlaufleisten einstellen
             setScrollBars();       
         }
	}

		//Speichern 
	void Form1::speichernToolStripMenuItem_Click(Object^  sender, EventArgs^  e) 
      {
            if (img == nullptr)
                return;
                speichern();
                        
      }

	void Form1::speichern() {
		// voreingestellten Dateityp an Bildformat anpassen
            if (img->RawFormat->Equals(ImageFormat::Bmp))
                saveFileDialog1->FilterIndex = 1;    
            else if (img->RawFormat->Equals(ImageFormat::Jpeg))
                saveFileDialog1->FilterIndex = 2;
            else 
                saveFileDialog1->FilterIndex = 3;    
                
                
            if (saveFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
            {
                if (saveFileDialog1->FileName == openFileDialog1->FileName)
                {
                   MessageBox::Show("Zurückschreiben in die alte Datei wird nicht unterstützt");
                    return;
                }
               
                switch (saveFileDialog1->FilterIndex)
                {
                case 1 : img->Save(saveFileDialog1->FileName, ImageFormat::Bmp);    
                         break;
                case 2 : img->Save(saveFileDialog1->FileName, ImageFormat::Jpeg);    
                         break;
                case 3 : img->Save(saveFileDialog1->FileName, ImageFormat::Png);    
                         break;
                }         
            }
	}

	void Form1::pictureBox1_Paint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e) {

         Graphics ^gc = e->Graphics;

         gc->Clear(SystemColors::ControlLight);
            
         if (pictureBox1->Image != nullptr)
         {
             // Korrektur für möglicherweise eingeblendete Bildlaufleisten
             int corrW = 0;
             int corrH = 0;

			 
             
             if (vScrollBar1->Visible)
                 corrW = vScrollBar1->Width;
             if (hScrollBar1->Visible)
                 corrH = hScrollBar1->Height;

			 //pictureBox1->SizeMode = PictureBoxSizeMode::CenterImage;
                 
             gc->DrawImage(pictureBox1->Image, 
                           Rectangle(0, 0, 
                                     pictureBox1->Right - corrW, 
                                     pictureBox1->Bottom - corrH), 
                           Rectangle(hScrollBar1->Value, vScrollBar1->Value, 
                                     pictureBox1->Right - corrW,
                                     pictureBox1->Bottom - corrH),
                                     GraphicsUnit::Pixel);
         }
      }


	void Form1::pictureBox1_Resize(Object^ sender, EventArgs^ e){
		//Nicht reagieren, wenn kein Bild geladen oder das 
		//Fenster minimiert ist.
		if (pictureBox1->Image != nullptr && WindowState != FormWindowState::Minimized)
		{
			setScrollBars();
			pictureBox1->Refresh();
		}
	}

	void Form1::setScrollBars()
      {
         // Bildlaufleisten einblenden, wenn die Bildbreite (-höhe) größer als die PictureBox ist
         hScrollBar1->Visible = pictureBox1->Image->Width  > pictureBox1->Width;
         vScrollBar1->Visible = pictureBox1->Image->Height > pictureBox1->Height;
         
         // nochmals prüfen und sichtbare Bildlaufleisten mit berücksichtigen
         if (vScrollBar1->Visible)
             hScrollBar1->Visible = pictureBox1->Image->Width  > (pictureBox1->Width - vScrollBar1->Width);
         if (hScrollBar1->Visible)
             vScrollBar1->Visible = pictureBox1->Image->Height > (pictureBox1->Height - hScrollBar1->Height);

         // horizontale Bildlaufleiste konfigurieren
         hScrollBar1->Value = 0;
         hScrollBar1->Minimum = 0;
         hScrollBar1->Maximum = pictureBox1->Image->Width - 1;
         hScrollBar1->SmallChange = 1;
         // LargeChange auf Anzeigebreite setzen
         if (hScrollBar1->Visible)
         {
             if (vScrollBar1->Visible)
                 hScrollBar1->LargeChange = pictureBox1->Width - vScrollBar1->Width;
             else
                 hScrollBar1->LargeChange = pictureBox1->Width;
         }            
         
         // vertikale Bildlaufleiste konfigurieren
         vScrollBar1->Value = 0;
         vScrollBar1->Minimum = 0;
         vScrollBar1->Maximum = pictureBox1->Image->Height - 1;
         vScrollBar1->SmallChange = 1;         
         // LargeChange auf Anzeigehöhe setzen
         if (vScrollBar1->Visible)
         {
             if (hScrollBar1->Visible)
                 vScrollBar1->LargeChange = pictureBox1->Height - hScrollBar1->Height;
             else
                 vScrollBar1->LargeChange = pictureBox1->Height;
         }
      }

	void Form1::pictureBox1_MouseDown(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e) {
			 if(e->Button == System::Windows::Forms::MouseButtons::Left && !radieren) {
				mouseDown = true;
				point->Add(gcnew SchreibKoordinaten(e->X + hScrollBar1->Value,e->Y + vScrollBar1->Value));
				layer->FillRectangle(Brushes::Green,e->X + hScrollBar1->Value,e->Y + vScrollBar1->Value, 1, 1);
				pictureBox1->Invalidate();
				 }
			 
		 }
	void Form1::pictureBox1_MouseMove(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e) {
			  
			  if(mouseDown && !radieren) {
				  
				 p = Point(e->X + hScrollBar1->Value, e->Y + vScrollBar1->Value);
				 layer->DrawLine(pen1, point[anzahl_gezeichnet]->getKoord(),p);
				 point[anzahl_gezeichnet]->setKoord(e->X + hScrollBar1->Value, e->Y + vScrollBar1->Value);
				 region1 = gcnew System::Drawing::Region(Rectangle(e->X + hScrollBar1->Value -20, e->Y + vScrollBar1->Value-20, 40,40));
					 pictureBox1->Invalidate(region1);
			  }
		 }
	void Form1::pictureBox1_MouseUp(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e) {
			 if(e->Button == System::Windows::Forms::MouseButtons::Left) {
				if(mouseDown && !radieren) {
					 p = Point(e->X + hScrollBar1->Value, e->Y + vScrollBar1->Value);
					 layer->DrawLine(pen1, point[anzahl_gezeichnet]->getKoord(),p);
					 point[anzahl_gezeichnet]->setKoord(e->X + hScrollBar1->Value, e->Y + hScrollBar1->Value);
					 mouseDown = false;
					 pictureBox1->Invalidate();
					 tester = gcnew HackenTest(point[anzahl_gezeichnet]->listAusgabe());
					 if (e->X + hScrollBar1->Value < img->Width - img->Width/3) {
						if(tester->istHacken()) {
							aufbauAntworten();
							zeichneNach();
							contM->Show(pictureBox1,point[anzahl_gezeichnet]->getKoord() );
							point[anzahl_gezeichnet]->setIstHacken();
							}
					 }
					 ++anzahl_gezeichnet;
				}
			 }
		 }

	void Form1::zeichneNach() {
		List<Point> ^haken = point[anzahl_gezeichnet]->listAusgabe();
		Point a = haken[0];
		for each(Point ziel in haken) {
			layer->DrawLine(penRed, a,ziel);
			a = ziel;
		}
	}

	
	void Form1::aufbauAntworten() {
		try {
			List<Antwort^> ^daten;
			for each (AntwortDaten ^fach in faecher) {
				if (fach->getAusgewaehlt()) {
					daten = fach->getAntworten();
				}
			}
		
			contM = gcnew System::Windows::Forms::ContextMenu();
			this->ContextMenu = contM;
			for each (Antwort ^antwort in daten){
				if(antwort->istSichtbar()) {
					MenuItem ^mnuItemOpenWith = gcnew MenuItem();
					mnuItemOpenWith->Text = antwort->getAntwort();
					mnuItemOpenWith->MenuItems->Add(mnuItemOpenWith);
					mnuItemOpenWith->Click += gcnew System::EventHandler(this, &Correctus::Form1::menuItem1_Click);
					contM->MenuItems->Add(mnuItemOpenWith);
				
				}
			}
		}
		catch(Exception ^) {
			MessageBox::Show("Bitte Prüfung auswählen", "Fehler");
		}
	}

	System::Void Form1::menuItem1_Click(System::Object^ sender, System::EventArgs ^e) {
		 MenuItem ^item= static_cast<MenuItem^>(sender);

		 List<Antwort^> ^daten;
		 for each (AntwortDaten ^fach in faecher)
		 {
			 if(fach->getAusgewaehlt()) {
				 daten = fach->getAntworten();
			 }
		 }
		 for each (Antwort ^antwort in daten) {
			 if(antwort->getAntwort() == item->Text) {
				antwort->abgehackt();
				point[anzahl_gezeichnet-1]->setAntwortNr(antwort->getAwNr());
			 }
		 }
    
	}
	System::Void Form1::radierenToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e) {
		if(radieren) 
			radieren = false;
		else
			radieren = true;
		 }

	void Form1::sicherheitsAbfrage() {
		System::Windows::Forms::DialogResult ^dr = MessageBox::Show("Wollen Sie speichern?", "Beenden",  MessageBoxButtons::YesNoCancel);

		if(dr == System::Windows::Forms::DialogResult::Yes && img != nullptr) {
			speichern();
			this->Close();
		}
		if(dr == System::Windows::Forms::DialogResult::No) {
			this->Close();
		} else {
			return;
		}
	}
}

Wie gesagt, Ihr müsst die Abhängigkeiten noch löschen, die ihr eh nicht habt. das ist die Betreffende Klasse.

Sagt nichts zu dem Programmierstil, ich arbeite erst seit 3 Monaten mit C++/CLI ;)
 
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