Laboratorium 12

1. Cel ćwiczenia

Celem ćwiczenia jest zapoznanie się z obsługą C++ w środowisku Microsoft Visual C++.

2. Przykłady

Zad1

Przykład aplikacji która zawiera dwa przyciski. Jeden z przycisków za zadanie ma wyświetlić nowe okno z komunikatem „Dzień dobry”, drugi zamyka aplikację.

#pragma once

namespace test {

using namespace System;

using namespace System::ComponentModel;

using namespace System::Collections;

using namespace System::Windows::Forms;

using namespace System::Data;

using namespace System::Drawing;

public ref class Form1 : public System::Windows::Forms::Form

{

public:

Form1(void)

{

InitializeComponent();

//

//TODO: Add the constructor code here

//

}

protected:

/// <summary>

/// Clean up any resources being used.

/// </summary>

~Form1()

{

if (components)

{

delete components;

}

}

private: System::Windows::Forms::Button^ button1;

private: System::Windows::Forms::Button^ button2;

protected:

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->button1 = (gcnew System::Windows::Forms::Button());

this->button2 = (gcnew System::Windows::Forms::Button());

this->SuspendLayout();

//

// button1

//

this->button1->Location = System::Drawing::Point(52, 117);

this->button1->Name = L"button1";

this->button1->Size = System::Drawing::Size(147, 59);

this->button1->TabIndex = 0;

this->button1->Text = L"ZAKOŃCZ";

this->button1->UseVisualStyleBackColor = true;

this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);

//

// button2

//

this->button2->Location = System::Drawing::Point(52, 24);

this->button2->Name = L"button2";

this->button2->Size = System::Drawing::Size(147, 62);

this->button2->TabIndex = 2;

this->button2->Text = L"TEST";

this->button2->UseVisualStyleBackColor = true;

this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);

//

// Form1

//

this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);

this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;

this->BackgroundImageLayout = System::Windows::Forms::ImageLayout::None;

this->ClientSize = System::Drawing::Size(261, 219);

this->ControlBox = false;

this->Controls->Add(this->button2);

this->Controls->Add(this->button1);

this->FormBorderStyle = System::Windows::Forms::FormBorderStyle::Fixed3D;

this->Name = L"Form1";

this->Text = L"Pierwszy program";

this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);

this->ResumeLayout(false);

}

#pragma endregion

private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) {

}

private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e)

{

Close();

}

private: System::Void domainUpDown1_SelectedItemChanged(System::Object^ sender, System::EventArgs^ e) {

}

private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e)

{

MessageBox::Show ("Dzień dobry");

}

};

}

Zad2

Przykładowa aplikacja za zadanie ma zapamiętać wprowadzenie dziesięciu wartości liczbowych, następnie po wciśnięciu odpowiedniego przycisku wyświetlenie wszystkich zapamiętanych wartości.

#pragma once

namespace zmienne_tablicowe {

using namespace System;

using namespace System::ComponentModel;

using namespace System::Collections;

using namespace System::Windows::Forms;

using namespace System::Data;

using namespace System::Drawing;

int liczby[10];

int licznik = 0;

public ref class Form1 : public System::Windows::Forms::Form

{

public:

Form1(void)

{

InitializeComponent();

//

//TODO: Add the constructor code here

//

}

protected:

/// <summary>

/// Clean up any resources being used.

/// </summary>

~Form1()

{

if (components)

{

delete components;

}

}

private: System::Windows::Forms::Label^ label1;

protected:

private: System::Windows::Forms::Label^ wynik;

private: System::Windows::Forms::Button^ button1;

private: System::Windows::Forms::Button^ button2;

private: System::Windows::Forms::TextBox^ textBox1;

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->label1 = (gcnew System::Windows::Forms::Label());

this->wynik = (gcnew System::Windows::Forms::Label());

this->button1 = (gcnew System::Windows::Forms::Button());

this->button2 = (gcnew System::Windows::Forms::Button());

this->textBox1 = (gcnew System::Windows::Forms::TextBox());

this->SuspendLayout();

//

// label1

//

this->label1->AutoSize = true;

this->label1->Location = System::Drawing::Point(40, 22);

this->label1->Name = L"label1";

this->label1->Size = System::Drawing::Size(53, 13);

this->label1->TabIndex = 0;

this->label1->Text = L"Liczba nr.";

//

// wynik

//

this->wynik->AutoSize = true;

this->wynik->Location = System::Drawing::Point(99, 21);

this->wynik->Name = L"wynik";

this->wynik->Size = System::Drawing::Size(10, 13);

this->wynik->TabIndex = 1;

this->wynik->Text = L" ";

//

// button1

//

this->button1->Location = System::Drawing::Point(39, 86);

this->button1->Name = L"button1";

this->button1->Size = System::Drawing::Size(75, 23);

this->button1->TabIndex = 2;

this->button1->Text = L"Zapamiętaj";

this->button1->UseVisualStyleBackColor = true;

this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);

//

// button2

//

this->button2->Location = System::Drawing::Point(12, 128);

this->button2->Name = L"button2";

this->button2->Size = System::Drawing::Size(132, 23);

this->button2->TabIndex = 3;

this->button2->Text = L"Pokaż wszystkie liczby";

this->button2->UseVisualStyleBackColor = true;

this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);

//

// textBox1

//

this->textBox1->Location = System::Drawing::Point(34, 48);

this->textBox1->Name = L"textBox1";

this->textBox1->Size = System::Drawing::Size(100, 20);

this->textBox1->TabIndex = 4;

this->textBox1->Text = L"1";

this->textBox1->TextChanged += gcnew System::EventHandler(this, &Form1::textBox1_TextChanged);

//

// Form1

//

this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);

this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;

this->ClientSize = System::Drawing::Size(170, 191);

this->Controls->Add(this->textBox1);

this->Controls->Add(this->button2);

this->Controls->Add(this->button1);

this->Controls->Add(this->wynik);

this->Controls->Add(this->label1);

this->FormBorderStyle = System::Windows::Forms::FormBorderStyle::FixedToolWindow;

this->Name = L"Form1";

this->Text = L" Zmienne";

this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);

this->ResumeLayout(false);

this->PerformLayout();

}

#pragma endregion

private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)

{

for (int i=0;i<=9;i++)

{

liczby[i] = -1;

};

licznik = 0;

}

private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e)

{

liczby[licznik] = Convert::ToInt16 (textBox1->Text);

licznik++;

if (licznik>9)

{

licznik = 0;

};

wynik->Text = Convert::ToString (licznik);

}

private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e)

{

for (int i=0;i<=9;i++)

{

MessageBox::Show (Convert::ToString(liczby[i]),"Wartość liczby nr" +Convert::ToString(i));

}

}

private: System::Void textBox1_TextChanged(System::Object^ sender, System::EventArgs^ e) {

}

};

}

Zad3

Przykładowa aplikacja za zadanie ma pomnożenie wpisanych przez użytkownika wartości liczbowych do pól tekstowych i zwróceniu ich iloczynu w nowym oknie po wciśnięciu odpowiedniego przycisku.

#pragma once

namespace Funkcje {

using namespace System;

using namespace System::ComponentModel;

using namespace System::Collections;

using namespace System::Windows::Forms;

using namespace System::Data;

using namespace System::Drawing;

long mnozenie(int par1,int par2)

{

long wynik;

wynik = par1*par2;

MessageBox::Show (Convert::ToString(wynik),"Wynik");

return (wynik);

};

public ref class Form1 : public System::Windows::Forms::Form

{

public:

Form1(void)

{

InitializeComponent();

//

//TODO: Add the constructor code here

//

}

protected:

/// <summary>

/// Clean up any resources being used.

/// </summary>

~Form1()

{

if (components)

{

delete components;

}

}

private: System::Windows::Forms::Label^ label1;

protected:

private: System::Windows::Forms::Label^ label2;

private: System::Windows::Forms::Label^ label3;

private: System::Windows::Forms::TextBox^ wpis1;

private: System::Windows::Forms::TextBox^ wpis2;

private: System::Windows::Forms::TextBox^ wpis3;

private: System::Windows::Forms::Button^ button1;

private: System::Windows::Forms::Button^ button2;

private: System::Windows::Forms::Button^ button3;

private:

System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code

void InitializeComponent(void)

{

this->label1 = (gcnew System::Windows::Forms::Label());

this->label2 = (gcnew System::Windows::Forms::Label());

this->label3 = (gcnew System::Windows::Forms::Label());

this->wpis1 = (gcnew System::Windows::Forms::TextBox());

this->wpis2 = (gcnew System::Windows::Forms::TextBox());

this->wpis3 = (gcnew System::Windows::Forms::TextBox());

this->button1 = (gcnew System::Windows::Forms::Button());

this->button2 = (gcnew System::Windows::Forms::Button());

this->button3 = (gcnew System::Windows::Forms::Button());

this->SuspendLayout();

//

// label1

//

this->label1->AutoSize = true;

this->label1->Location = System::Drawing::Point(24, 13);

this->label1->Name = L"label1";

this->label1->Size = System::Drawing::Size(23, 13);

this->label1->TabIndex = 0;

this->label1->Text = L"A =";

//

// label2

//

this->label2->AutoSize = true;

this->label2->Location = System::Drawing::Point(24, 44);

this->label2->Name = L"label2";

this->label2->Size = System::Drawing::Size(23, 13);

this->label2->TabIndex = 1;

this->label2->Text = L"B =";

//

// label3

//

this->label3->AutoSize = true;

this->label3->Location = System::Drawing::Point(24, 80);

this->label3->Name = L"label3";

this->label3->Size = System::Drawing::Size(23, 13);

this->label3->TabIndex = 2;

this->label3->Text = L"C =";

//

// wpis1

//

this->wpis1->Location = System::Drawing::Point(70, 13);

this->wpis1->Name = L"wpis1";

this->wpis1->Size = System::Drawing::Size(100, 20);

this->wpis1->TabIndex = 3;

this->wpis1->Text = L"1";

//

// wpis2

//

this->wpis2->Location = System::Drawing::Point(70, 44);

this->wpis2->Name = L"wpis2";

this->wpis2->Size = System::Drawing::Size(100, 20);

this->wpis2->TabIndex = 4;

this->wpis2->Text = L"2";

//

// wpis3

//

this->wpis3->Location = System::Drawing::Point(70, 77);

this->wpis3->Name = L"wpis3";

this->wpis3->Size = System::Drawing::Size(100, 20);

this->wpis3->TabIndex = 5;

this->wpis3->Text = L"3";

//

// button1

//

this->button1->Location = System::Drawing::Point(27, 131);

this->button1->Name = L"button1";

this->button1->Size = System::Drawing::Size(75, 23);

this->button1->TabIndex = 6;

this->button1->Text = L"A * B";

this->button1->UseVisualStyleBackColor = true;

this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);

//

// button2

//

this->button2->Location = System::Drawing::Point(27, 169);

this->button2->Name = L"button2";

this->button2->Size = System::Drawing::Size(75, 23);

this->button2->TabIndex = 7;

this->button2->Text = L"B * C";

this->button2->UseVisualStyleBackColor = true;

this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);

//

// button3

//

this->button3->Location = System::Drawing::Point(27, 208);

this->button3->Name = L"button3";

this->button3->Size = System::Drawing::Size(75, 23);

this->button3->TabIndex = 8;

this->button3->Text = L"A * C";

this->button3->UseVisualStyleBackColor = true;

this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);

//

// Form1

//

this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);

this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;

this->ClientSize = System::Drawing::Size(186, 248);

this->Controls->Add(this->button3);

this->Controls->Add(this->button2);

this->Controls->Add(this->button1);

this->Controls->Add(this->wpis3);

this->Controls->Add(this->wpis2);

this->Controls->Add(this->wpis1);

this->Controls->Add(this->label3);

this->Controls->Add(this->label2);

this->Controls->Add(this->label1);

this->FormBorderStyle = System::Windows::Forms::FormBorderStyle::FixedToolWindow;

this->Name = L"Form1";

this->StartPosition = System::Windows::Forms::FormStartPosition::CenterScreen;

this->Text = L"Funkcja";

this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);

this->ResumeLayout(false);

this->PerformLayout();

}

#pragma endregion

private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)

{

}

private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e)

{

mnozenie (Convert::ToInt16(wpis1->Text), Convert::ToInt16(wpis3->Text));

}

private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e)

{

int zm_a;

int zm_b;

long zm_wynik;

zm_a = Convert::ToInt16 (wpis1->Text);

zm_b = Convert::ToInt16 (wpis2->Text);

zm_wynik = mnozenie (zm_a,zm_b);

MessageBox::Show (Convert::ToString(zm_wynik),"Wartość zwrócona przez funkcję");

}

private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e)

{

mnozenie (Convert::ToInt16(wpis2->Text), Convert::ToInt16(wpis3->Text));

}

};

}

3. Program ćwiczenia

Zad4

Należy wykonać aplikację która będzie wyświetlać następujące komunikaty:

• po najechaniu myszą na element Panel wyświetli tekst informujący o tym zdarzeniu

• po kliknięciu myszą na element Panel wyświetli nowe okno z informacją o tym zdarzeniu

• po najechaniu myszą na element textBox również wyświetli odpowiedni tekst

• przy próbie zmiany rozmiaru okna głównego będzie informacja o tym zdarzeniu

Poniżej zdjęcie aplikacji.

Zad5

Należy wykonać aplikację kalkulator. Poniżej zdjęcie aplikacji.

1

Podstawy Informatyki

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