C++ WinForms Problem :S

07/27/2013 14:16 uebertreiber#1
Guten Tag, habe eine Fehlermeldung die ich leider nicht nachvollziehen kann könnte mir vllt ejmand helfen ?

Fehlermeldung in Visual Studio 2012:
1>------ Build started: Project: Calculator, Configuration: Debug Win32 ------
1> MyForm.cpp
1>c:\users\lulzsec\desktop\calculator\calculator\M yForm.h(191): warning C4244: '=' : conversion from 'wchar_t' to 'char', possible loss of data
1>LINK : fatal error LNK1561: entry point must be defined
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========


danke :)
Code:
#pragma once

namespace Calculator {

	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 std;

	/// <summary>
	/// Summary for MyForm
	/// </summary>
	public ref class MyForm : public System::Windows::Forms::Form
	{
	public:
		MyForm(void)
		{
			InitializeComponent();
			//
			//TODO: Add the constructor code here
			//
		}

	protected:
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		~MyForm()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::TextBox^  textBox1;
	protected: 
	private: System::Windows::Forms::TextBox^  textBox2;
	private: System::Windows::Forms::Label^  label1;
	private: System::Windows::Forms::Button^  button1;
	private: System::Windows::Forms::Button^  button2;
	private: System::Windows::Forms::Button^  button3;
	private: System::Windows::Forms::Button^  button4;
	private: System::Windows::Forms::Button^  button5;
	private: System::Windows::Forms::Label^  label2;

	private:
		/// <summary>
		/// Required designer variable.
		/// </summary>
		System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		void InitializeComponent(void)
		{
			this->textBox1 = (gcnew System::Windows::Forms::TextBox());
			this->textBox2 = (gcnew System::Windows::Forms::TextBox());
			this->label1 = (gcnew System::Windows::Forms::Label());
			this->button1 = (gcnew System::Windows::Forms::Button());
			this->button2 = (gcnew System::Windows::Forms::Button());
			this->button3 = (gcnew System::Windows::Forms::Button());
			this->button4 = (gcnew System::Windows::Forms::Button());
			this->button5 = (gcnew System::Windows::Forms::Button());
			this->label2 = (gcnew System::Windows::Forms::Label());
			this->SuspendLayout();
			// 
			// textBox1
			// 
			this->textBox1->Location = System::Drawing::Point(82, 84);
			this->textBox1->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->textBox1->Name = L"textBox1";
			this->textBox1->Size = System::Drawing::Size(234, 30);
			this->textBox1->TabIndex = 0;
			// 
			// textBox2
			// 
			this->textBox2->Location = System::Drawing::Point(82, 198);
			this->textBox2->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->textBox2->Name = L"textBox2";
			this->textBox2->Size = System::Drawing::Size(234, 30);
			this->textBox2->TabIndex = 1;
			// 
			// label1
			// 
			this->label1->AutoSize = true;
			this->label1->Location = System::Drawing::Point(166, 139);
			this->label1->Margin = System::Windows::Forms::Padding(4, 0, 4, 0);
			this->label1->Name = L"label1";
			this->label1->Size = System::Drawing::Size(64, 25);
			this->label1->TabIndex = 2;
			this->label1->Text = L"label1";
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(489, 81);
			this->button1->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->button1->Name = L"button1";
			this->button1->Size = System::Drawing::Size(140, 41);
			this->button1->TabIndex = 3;
			this->button1->Text = L"+";
			this->button1->UseVisualStyleBackColor = true;
			this->button1->Click += gcnew System::EventHandler(this, &MyForm::button1_Click);
			// 
			// button2
			// 
			this->button2->Location = System::Drawing::Point(489, 139);
			this->button2->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->button2->Name = L"button2";
			this->button2->Size = System::Drawing::Size(140, 50);
			this->button2->TabIndex = 4;
			this->button2->Text = L"-";
			this->button2->UseVisualStyleBackColor = true;
			this->button2->Click += gcnew System::EventHandler(this, &MyForm::button2_Click);
			// 
			// button3
			// 
			this->button3->Location = System::Drawing::Point(489, 198);
			this->button3->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->button3->Name = L"button3";
			this->button3->Size = System::Drawing::Size(140, 48);
			this->button3->TabIndex = 5;
			this->button3->Text = L"*";
			this->button3->UseVisualStyleBackColor = true;
			this->button3->Click += gcnew System::EventHandler(this, &MyForm::button3_Click);
			// 
			// button4
			// 
			this->button4->Location = System::Drawing::Point(489, 256);
			this->button4->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->button4->Name = L"button4";
			this->button4->Size = System::Drawing::Size(140, 47);
			this->button4->TabIndex = 6;
			this->button4->Text = L"/";
			this->button4->UseVisualStyleBackColor = true;
			this->button4->Click += gcnew System::EventHandler(this, &MyForm::button4_Click);
			// 
			// button5
			// 
			this->button5->Location = System::Drawing::Point(142, 256);
			this->button5->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->button5->Name = L"button5";
			this->button5->Size = System::Drawing::Size(112, 36);
			this->button5->TabIndex = 7;
			this->button5->Text = L"=";
			this->button5->UseVisualStyleBackColor = true;
			this->button5->Click += gcnew System::EventHandler(this, &MyForm::button5_Click);
			// 
			// label2
			// 
			this->label2->AutoSize = true;
			this->label2->Location = System::Drawing::Point(166, 305);
			this->label2->Margin = System::Windows::Forms::Padding(4, 0, 4, 0);
			this->label2->Name = L"label2";
			this->label2->Size = System::Drawing::Size(64, 25);
			this->label2->TabIndex = 8;
			this->label2->Text = L"label2";
			// 
			// MyForm
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(12, 25);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(801, 403);
			this->Controls->Add(this->label2);
			this->Controls->Add(this->button5);
			this->Controls->Add(this->button4);
			this->Controls->Add(this->button3);
			this->Controls->Add(this->button2);
			this->Controls->Add(this->button1);
			this->Controls->Add(this->label1);
			this->Controls->Add(this->textBox2);
			this->Controls->Add(this->textBox1);
			this->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
				static_cast<System::Byte>(0)));
			this->Margin = System::Windows::Forms::Padding(4, 5, 4, 5);
			this->Name = L"MyForm";
			this->Text = L"Calculator";
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion
	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 label1->Text = "+";
			 }
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
			 label1->Text = "-";
		 }
private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {
			 label1->Text = "*";
		 }
private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {
			 label1->Text = "/";
		 }
private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {
			 char sw; 
			 double a, b, erg;
			 sw = System::Convert::ToChar(label1->Text);
			 a =  System::Convert::ToDouble(textBox1->Text);
			 b =  System::Convert::ToDouble(textBox2->Text);

			 switch(sw)
			 {
				case '+':
					erg = a + b;
					break;

				case '-':
					erg = a - b;
					break;
		
				case '*':
					erg = a * b;
					break;

				case '/':
					erg = a / b;
					break;

			 }
			 label2->Text = System::Convert::ToString(erg);
		 }
};
}
Fehler müsste in diesem Abschnitt sein :S
Code:
#pragma endregion
	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 label1->Text = "+";
			 }
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
			 label1->Text = "-";
		 }
private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {
			 label1->Text = "*";
		 }
private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {
			 label1->Text = "/";
		 }
private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {
			 char sw; 
			 double a, b, erg;
			 sw = System::Convert::ToChar(label1->Text);
			 a =  System::Convert::ToDouble(textBox1->Text);
			 b =  System::Convert::ToDouble(textBox2->Text);

			 switch(sw)
			 {
				case '+':
					erg = a + b;
					break;

				case '-':
					erg = a - b;
					break;
		
				case '*':
					erg = a * b;
					break;

				case '/':
					erg = a / b;
					break;

			 }
			 label2->Text = System::Convert::ToString(erg);
		 }
};
}
07/27/2013 14:19 MrSm!th#2
#moved
Das ist C++/CLI
07/27/2013 14:55 GodHacker#3
Ich frage mich, warum es so viele nicht kapieren, dass sie es in die Sektion, welche extra für C++ ist, posten sollen... Die C++ Sektion ist sogar direkt über der für .NET.
07/27/2013 15:00 .SkyneT.#4
Quote:
Originally Posted by GodHacker View Post
Ich frage mich, warum es so viele nicht kapieren, dass sie es in die Sektion, welche extra für C++ ist, posten sollen... Die C++ Sektion ist sogar direkt über der für .NET.
...Kein Kommentar


Der Fehler steht doch eh schon dort:
"entry point must be defined"
07/27/2013 15:01 Schlüsselbein#5
Quote:
Ich frage mich, warum es so viele nicht kapieren, dass sie es in die Sektion, welche extra für C++ ist, posten sollen... Die C++ Sektion ist sogar direkt über der für .NET.
Autsch.

@TS: C# oder C++ benutzen, kein C++/CLI.
07/27/2013 15:14 MrSm!th#6
Quote:
Originally Posted by GodHacker View Post
Ich frage mich, warum es so viele nicht kapieren, dass sie es in die Sektion, welche extra für C++ ist, posten sollen... Die C++ Sektion ist sogar direkt über der für .NET.
Danke, dass du mir verrätst, welche Sektionen mein Bereich hat. War mir gar nicht bekannt.