// This is the main project file for VC++ application project 
// generated using an Application Wizard.

#using <mscorlib.dll>
#using <System.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>

using namespace System;
using namespace System::Drawing;
using namespace System::ComponentModel;
using namespace System::Windows::Forms;

__gc public class ColorForm : public Form
{
public:
	ColorForm();
private:
	Panel    *pnlPreview;
	TrackBar *scrRed, *scrGreen, *scrBlue;
	Button	 *btnClose;
	Label	 *lblRed, *lblGreen, *lblBlue;

	void CreateCloseButton();
	void CreateRedScrollBar();
	void CreateGreenScrollBar();
	void CreateBlueScrollBar();

	void scrRedScroll(Object *Sender,   System::EventArgs* pArgs);
	void scrGreenScroll(Object *Sender, System::EventArgs* pArgs);
	void scrBlueScroll(Object *Sender,  System::EventArgs* pArgs);
	void btnCloseClick(Object *Sender,  System::EventArgs* pArgs);
};

void ColorForm::CreateCloseButton()
{
	btnClose = new Button;
	btnClose->Location = Point(50, 150);
	btnClose->Text = S"&Close";
	btnClose->Location = Point(60, 150);
	btnClose->Click += new EventHandler(this, &ColorForm::btnCloseClick);

	Controls->Add(btnClose);
}

void ColorForm::CreateRedScrollBar()
{
	scrRed = new TrackBar;
	scrRed->Orientation = System::Windows::Forms::Orientation::Vertical;
	scrRed->TickStyle = System::Windows::Forms::TickStyle::Both;
	scrRed->Size = System::Drawing::Size(160, 140);
	scrRed->Location = System::Drawing::Point(180, 8);
	scrRed->Minimum = 0;
	scrRed->Maximum = 255;
	scrRed->Value = 128;
	scrRed->TickFrequency = 20;
	scrRed->add_ValueChanged(new EventHandler(this, scrRedScroll));

	Controls->Add(scrRed);
}
void ColorForm::CreateGreenScrollBar()
{
	scrGreen = new TrackBar;
	scrGreen->Orientation = System::Windows::Forms::Orientation::Vertical;
	scrGreen->TickStyle = System::Windows::Forms::TickStyle::Both;
	scrGreen->Size = System::Drawing::Size(160, 140);
	scrGreen->Location = System::Drawing::Point(230, 8);
	scrGreen->Minimum = 0;
	scrGreen->Maximum = 255;
	scrGreen->Value = 128;
	scrGreen->TickFrequency = 20;
	scrGreen->add_ValueChanged(new EventHandler(this, scrGreenScroll));

	Controls->Add(scrGreen);
}

void ColorForm::CreateBlueScrollBar()
{
	scrBlue = new TrackBar;
	scrBlue->Orientation = System::Windows::Forms::Orientation::Vertical;
	scrBlue->TickStyle = System::Windows::Forms::TickStyle::Both;
	scrBlue->Size = System::Drawing::Size(160, 140);
	scrBlue->Location = System::Drawing::Point(280, 8);
	scrBlue->Minimum = 0;
	scrBlue->Maximum = 255;
	scrBlue->Value = 128;
	scrBlue->TickFrequency = 20;
	scrBlue->add_ValueChanged(new EventHandler(this, scrBlueScroll));

	Controls->Add(scrBlue);
}

ColorForm::ColorForm()
{
	Text = S"TrackBarExample";

	pnlPreview = new Panel;
	pnlPreview->Size = System::Drawing::Size(160, 125);
	pnlPreview->Location = System::Drawing::Point(14, 14);
	pnlPreview->BorderStyle = System::Windows::Forms::BorderStyle::Fixed3D;
	pnlPreview->BackColor = System::Drawing::Color::FromArgb(128, 128, 128);

	lblRed = new Label;
	lblRed->Text = "Red";
	lblRed->AutoSize = true;
	lblRed->Location = Point(190, 150);
	lblGreen = new Label;
	lblGreen->Text = "Green";
	lblGreen->AutoSize = true;
	lblGreen->Location = Point(235, 150);
	lblBlue = new Label;
	lblBlue->Text = "Blue";
	lblBlue->AutoSize = true;
	lblBlue->Location = Point(290, 150);

	CreateRedScrollBar();
	CreateGreenScrollBar();
	CreateBlueScrollBar();
	CreateCloseButton();

	Controls->Add(pnlPreview);
	Controls->Add(scrRed);
	Controls->Add(scrGreen);
	Controls->Add(scrBlue);
	Controls->Add(btnClose);
	Controls->Add(lblRed);
	Controls->Add(lblGreen);
	Controls->Add(lblBlue);
}

void ColorForm::btnCloseClick(Object* Sender, System::EventArgs *pArgs)
{
	Close();
}

void ColorForm::scrRedScroll(Object* Sender, System::EventArgs* pArgs)
{
	int RedValue   = scrRed->Value;
	int GreenValue = scrGreen->Value;
	int BlueValue  = scrBlue->Value;

	pnlPreview->BackColor = System::Drawing::Color::FromArgb(RedValue, GreenValue, BlueValue);
}

void ColorForm::scrGreenScroll(Object *Sender, System::EventArgs* pArgs)
{
	int RedValue = scrRed->Value;
	int GreenValue = scrGreen->Value;
	int BlueValue  = scrBlue->Value;

	pnlPreview->BackColor = System::Drawing::Color::FromArgb(RedValue, GreenValue, BlueValue);
}

void ColorForm::scrBlueScroll(Object* Sender, System::EventArgs* pArgs)
{
	int RedValue = scrRed->Value;
	int GreenValue = scrGreen->Value;
	int BlueValue  = scrBlue->Value;

	pnlPreview->BackColor = System::Drawing::Color::FromArgb(RedValue, GreenValue, BlueValue);
}
// This is the entry point for this application
int __stdcall WinMain()
{
	ColorForm *CF = new ColorForm();

	CF->Height = 220;
	CF->Width = 350;
	Application::Run(CF);
	return 0;
}