Using Threat in programming Visual C++

#pragma endregion

private: Graphics^ my_graph1;

private: Graphics^ my_graph2;

private: Graphics^ my_graph3;

private: Graphics^ my_graph4;

private: Graphics^ my_pixels;

private: Graphics^ my_lines;

private: Pen^ my_pen1;

private: Pen^ my_pen2;

private: Pen^ my_pen3;

private: Pen^ my_pen4;

private: System::Void init_Random()

{

srand(time(NULL));

}

private: System::Void draw_Ellipse(Graphics^ graph,Pen^ pen)

{

int i,j;

for(i=3;i<77;i+=5)

graph->DrawEllipse(pen,0,0,i,i);

for(j=55;j<112;j+=8)

graph->DrawEllipse(pen,j,j,144,111);

}

private: System::Void draw_Lines(Graphics^ graph, Pen^ pen)

{

int i,j;

for(i=5;i<144;i+=5)

graph->DrawLine(pen,i,0,i,111);

for(j=5;j<111;j+=5)

graph->DrawLine(pen,0,j,144,j);

}

private: System::Void init_Lines()

{

my_lines=panel6->CreateGraphics();

Pen^ Pen_line1=gcnew Pen(System::Drawing::Color::Blue);

Pen^ Pen_line2=gcnew Pen(System::Drawing::Color::Yellow);

Pen^ Pen_line3=gcnew Pen(System::Drawing::Color::Green);

Pen^ Pen_line4=gcnew Pen(System::Drawing::Color::Purple);

int i,j;

Pen_line1->DashStyle=System::Drawing::Drawing2D::DashStyle::DashDot;

Pen_line2->DashStyle=System::Drawing::Drawing2D::DashStyle::Dot;

Pen_line4->DashStyle=System::Drawing::Drawing2D::DashStyle::Solid;

int margin1=5;

int margin2=15;

for(i=margin1;i<panel6->Width-margin1;i+=margin1)

my_lines->DrawLine(Pen_line1,i,margin1,i,panel6->Height-margin1);

for(j=margin1;j<panel6->Height-margin1;j+=margin2)

my_lines->DrawLine(Pen_line2,margin1,j,panel6->Width-margin1,j);

for(i=margin1;i<panel6->Width-margin1;i+=margin1)

my_lines->DrawLine(Pen_line3,i,margin1,i+margin2,panel6->Height-margin1);

for(j=margin1;j<panel6->Height-margin1;j+=margin1)

my_lines->DrawLine(Pen_line4,margin1,j,panel6->Width-margin1,j+margin2);

}

private: System::Void init_Graph()

{

my_graph1=panel1->CreateGraphics();

my_graph2=panel2->CreateGraphics();

my_graph3=panel3->CreateGraphics();

my_graph4=panel4->CreateGraphics();

my_pen1=gcnew Pen(System::Drawing::Color::Black);

my_pen2=gcnew Pen(System::Drawing::Color::Yellow);

my_pen3=gcnew Pen(System::Drawing::Color::Green);

my_pen4=gcnew Pen(System::Drawing::Color::Red);

draw_Lines(my_graph1,my_pen1);

draw_Lines(my_graph2,my_pen2);

draw_Lines(my_graph3,my_pen3);

draw_Lines(my_graph4,my_pen4);

draw_Ellipse(my_graph1,my_pen4);

draw_Ellipse(my_graph2,my_pen3);

draw_Ellipse(my_graph3,my_pen2);

draw_Ellipse(my_graph4,my_pen1);

 

}

private: System::Void init_Pixels()

{

my_pixels=panel5->CreateGraphics();

Bitmap^ my_bitmap=gcnew Bitmap(panel5->Width,panel5->Height);

int i,x,y;

System::Drawing::Color my_color;

for(i=0;i<100000;i++)

{

x=rand()%(panel5->Width-1)+1;

y=rand()%(panel5->Height-1)+1;

my_color=System::Drawing::Color::FromArgb(rand()%255,rand()%255,rand()%255);

my_bitmap->SetPixel(x,y,my_color);

}

my_pixels->DrawImage(dynamic_cast<Image^>(my_bitmap),10,10);

}

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

Close();

}

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

}

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

Thread^ thread_graph=gcnew Thread(gcnew ThreadStart(this,&Form1::init_Graph));

thread_graph->Start();

Thread^ thread_pixels=gcnew Thread(gcnew ThreadStart(this,&Form1::init_Pixels));

thread_pixels->Start();

Thread^ thread_lines=gcnew Thread(gcnew ThreadStart(this,&Form1::init_Lines));

thread_lines->Start();

 

}

private: System::Void panel2_Paint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e) {

}

};

}