form1.h

《VC++2005编程实例》第二章的源代码

#pragma once


namespace Example {

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

	/// <summary>
	/// Form1 摘要
	///
	/// 警告: 如果更改此类的名称，则需要更改
	///          与此类所依赖的所有 .resx 文件关联的托管资源编译器工具的
	///          “资源文件名”属性。否则，
	///          设计器将不能与此窗体的关联
	///          本地化资源正确交互。
	/// </summary>
	public ref class Form1 : public System::Windows::Forms::Form
	{
	public:
		Form1(void)
		{
			InitializeComponent();
			//
			//TODO: 在此处添加构造函数代码
			//
		}

	protected:
		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		~Form1()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::Label^  label1;
	protected: 
	private: System::Windows::Forms::TextBox^  textBox1;
	private: System::Windows::Forms::TextBox^  textBox2;
	private: System::Windows::Forms::Label^  label2;
	private: System::Windows::Forms::TextBox^  textBox3;
	private: System::Windows::Forms::Label^  label3;
	private: System::Windows::Forms::TextBox^  textBox4;
	private: System::Windows::Forms::Label^  label4;
	private: System::Windows::Forms::Button^  button1;
	private: System::Windows::Forms::Button^  button2;
	private: System::Windows::Forms::Button^  button3;
	private: System::Windows::Forms::PictureBox^  pictureBox1;
	private: System::Windows::Forms::PictureBox^  pictureBox2;
	private: System::Windows::Forms::OpenFileDialog^  openFileDialog1;
	private: System::Windows::Forms::SaveFileDialog^  saveFileDialog1;

	private:
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
		/// <summary>
		/// 设计器支持所需的方法 - 不要
		/// 使用代码编辑器修改此方法的内容。
		/// </summary>
		void InitializeComponent(void)
		{
			this->label1 = (gcnew System::Windows::Forms::Label());
			this->textBox1 = (gcnew System::Windows::Forms::TextBox());
			this->textBox2 = (gcnew System::Windows::Forms::TextBox());
			this->label2 = (gcnew System::Windows::Forms::Label());
			this->textBox3 = (gcnew System::Windows::Forms::TextBox());
			this->label3 = (gcnew System::Windows::Forms::Label());
			this->textBox4 = (gcnew System::Windows::Forms::TextBox());
			this->label4 = (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->pictureBox1 = (gcnew System::Windows::Forms::PictureBox());
			this->pictureBox2 = (gcnew System::Windows::Forms::PictureBox());
			this->openFileDialog1 = (gcnew System::Windows::Forms::OpenFileDialog());
			this->saveFileDialog1 = (gcnew System::Windows::Forms::SaveFileDialog());
			(cli::safe_cast<System::ComponentModel::ISupportInitialize^  >(this->pictureBox1))->BeginInit();
			(cli::safe_cast<System::ComponentModel::ISupportInitialize^  >(this->pictureBox2))->BeginInit();
			this->SuspendLayout();
			// 
			// label1
			// 
			this->label1->AutoSize = true;
			this->label1->Location = System::Drawing::Point(3, 13);
			this->label1->Name = L"label1";
			this->label1->Size = System::Drawing::Size(167, 12);
			this->label1->TabIndex = 0;
			this->label1->Text = L"开始复制图像的左上角X坐标：";
			// 
			// textBox1
			// 
			this->textBox1->Location = System::Drawing::Point(168, 8);
			this->textBox1->Name = L"textBox1";
			this->textBox1->Size = System::Drawing::Size(40, 21);
			this->textBox1->TabIndex = 1;
			// 
			// textBox2
			// 
			this->textBox2->Location = System::Drawing::Point(257, 8);
			this->textBox2->Name = L"textBox2";
			this->textBox2->Size = System::Drawing::Size(49, 21);
			this->textBox2->TabIndex = 3;
			// 
			// label2
			// 
			this->label2->AutoSize = true;
			this->label2->Location = System::Drawing::Point(214, 13);
			this->label2->Name = L"label2";
			this->label2->Size = System::Drawing::Size(47, 12);
			this->label2->TabIndex = 2;
			this->label2->Text = L"Y坐标：";
			// 
			// textBox3
			// 
			this->textBox3->Location = System::Drawing::Point(100, 34);
			this->textBox3->Name = L"textBox3";
			this->textBox3->Size = System::Drawing::Size(40, 21);
			this->textBox3->TabIndex = 5;
			// 
			// label3
			// 
			this->label3->AutoSize = true;
			this->label3->Location = System::Drawing::Point(3, 37);
			this->label3->Name = L"label3";
			this->label3->Size = System::Drawing::Size(101, 12);
			this->label3->TabIndex = 4;
			this->label3->Text = L"复制图像的宽度：";
			// 
			// textBox4
			// 
			this->textBox4->Location = System::Drawing::Point(189, 34);
			this->textBox4->Name = L"textBox4";
			this->textBox4->Size = System::Drawing::Size(40, 21);
			this->textBox4->TabIndex = 7;
			// 
			// label4
			// 
			this->label4->AutoSize = true;
			this->label4->Location = System::Drawing::Point(146, 37);
			this->label4->Name = L"label4";
			this->label4->Size = System::Drawing::Size(41, 12);
			this->label4->TabIndex = 6;
			this->label4->Text = L"高度：";
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(312, 8);
			this->button1->Name = L"button1";
			this->button1->Size = System::Drawing::Size(75, 23);
			this->button1->TabIndex = 8;
			this->button1->Text = L"浏览图像";
			this->button1->UseVisualStyleBackColor = true;
			this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
			// 
			// button2
			// 
			this->button2->Location = System::Drawing::Point(235, 32);
			this->button2->Name = L"button2";
			this->button2->Size = System::Drawing::Size(75, 23);
			this->button2->TabIndex = 9;
			this->button2->Text = L"复制图像";
			this->button2->UseVisualStyleBackColor = true;
			this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
			// 
			// button3
			// 
			this->button3->Location = System::Drawing::Point(312, 32);
			this->button3->Name = L"button3";
			this->button3->Size = System::Drawing::Size(75, 23);
			this->button3->TabIndex = 10;
			this->button3->Text = L"保存图像";
			this->button3->UseVisualStyleBackColor = true;
			this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);
			// 
			// pictureBox1
			// 
			this->pictureBox1->BorderStyle = System::Windows::Forms::BorderStyle::Fixed3D;
			this->pictureBox1->Location = System::Drawing::Point(5, 63);
			this->pictureBox1->Name = L"pictureBox1";
			this->pictureBox1->Size = System::Drawing::Size(182, 146);
			this->pictureBox1->TabIndex = 11;
			this->pictureBox1->TabStop = false;
			// 
			// pictureBox2
			// 
			this->pictureBox2->BorderStyle = System::Windows::Forms::BorderStyle::Fixed3D;
			this->pictureBox2->Location = System::Drawing::Point(189, 63);
			this->pictureBox2->Name = L"pictureBox2";
			this->pictureBox2->Size = System::Drawing::Size(198, 146);
			this->pictureBox2->TabIndex = 12;
			this->pictureBox2->TabStop = false;
			// 
			// openFileDialog1
			// 
			this->openFileDialog1->FileName = L"openFileDialog1";
			// 
			// Form1
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 12);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(390, 214);
			this->Controls->Add(this->pictureBox2);
			this->Controls->Add(this->pictureBox1);
			this->Controls->Add(this->button3);
			this->Controls->Add(this->button2);
			this->Controls->Add(this->button1);
			this->Controls->Add(this->textBox4);
			this->Controls->Add(this->label4);
			this->Controls->Add(this->textBox3);
			this->Controls->Add(this->label3);
			this->Controls->Add(this->textBox2);
			this->Controls->Add(this->label2);
			this->Controls->Add(this->textBox1);
			this->Controls->Add(this->label1);
			this->Name = L"Form1";
			this->StartPosition = System::Windows::Forms::FormStartPosition::CenterScreen;
			this->Text = L"演示复制图像指定区域";
			(cli::safe_cast<System::ComponentModel::ISupportInitialize^  >(this->pictureBox1))->EndInit();
			(cli::safe_cast<System::ComponentModel::ISupportInitialize^  >(this->pictureBox2))->EndInit();
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion
	//浏览图像
private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
   this->openFileDialog1->Filter="所有图像文件(JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg; *.gif;*.bmp;*.tif; *.tiff; *.png| JPeg图像文件(*.jpg;*.jpeg) |*.jpg;*.jpeg |GIF图像文件(*.gif)|*.gif |BMP图像文件(*.bmp)|*.bmp|Tiff图像文件(*.tif;*.tiff)| *.tif;*.tiff|Png图像文件(*.png)| *.png |所有文件(*.*)|*.*";
   if(this->openFileDialog1->ShowDialog()==System::Windows::Forms::DialogResult::OK)
   {
     String^ MyFileName=this->openFileDialog1->FileName;
	 this->pictureBox1->Image=Image::FromFile(MyFileName);
     this->textBox1->Text="0";
     this->textBox2->Text="0";
     this->textBox3->Text=this->pictureBox1->Image->Width.ToString();
     this->textBox4->Text=this->pictureBox1->Image->Height.ToString();                   
    }   
}
 //复制图像
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
   int X,Y,Width,Height,i,j;
   Bitmap^ MyBitmapTarget,^MyBitmapSource;
   Color MyColor;
   if(this->pictureBox1->Image==nullptr)
        return;
   try
   {
	   X=System::Convert::ToInt16(this->textBox1->Text);
	   Y=System::Convert::ToInt16(this->textBox2->Text);
	   Width=System::Convert::ToInt16(this->textBox3->Text);
	   Height=System::Convert::ToInt16(this->textBox4->Text);
      MyBitmapTarget=gcnew Bitmap(Width,Height);
      MyBitmapSource=(Bitmap^)(this->pictureBox1->Image);
      for(i=X;i<X+Width;i++)
       {
         for(j=Y;j<Y+Height;j++)
         {
            MyColor=MyBitmapSource->GetPixel(i,j);
            MyBitmapTarget->SetPixel(i-X,j-Y,MyColor);
         }
       }
       this->pictureBox2->Image=MyBitmapTarget;
    }
    catch (Exception^ MyEx)
    {
		MessageBox::Show(MyEx->Message, "信息提示", MessageBoxButtons::OK, MessageBoxIcon::Information);
    }

		 }
 //保存图像
private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {
  if(this->pictureBox2->Image==nullptr)
      return;
  this->saveFileDialog1->Filter="所有JPEG图像文件(*.jpg)|*.jpg";
  if(this->saveFileDialog1->ShowDialog()==System::Windows::Forms::DialogResult::OK)
   {
      String^ MyFileName=this->saveFileDialog1->FileName;
	  this->pictureBox2->Image->Save(MyFileName,System::Drawing::Imaging::ImageFormat::Jpeg);
	  MessageBox::Show("保存图像操作成功！","信息提示",MessageBoxButtons::OK, MessageBoxIcon::Information);
   }
 }
};
}