using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.Drawing.Imaging;
using?System.Runtime.InteropServices;
?
namespace?BitBltTest
{
????//[System.Runtime.InteropServices.DllImport（“gdi32.dll“）]
????//private?static?extern?int?BitBlt（
????//????IntPtr?hdcDest
????//????int?nXDest
????//????int?nYDest
????//????int?nWidth
????//????int?nHeight
????//????IntPtr?hdcSrc?
????//????int?nXSrc
????//????int?nYSrc
????//????System.Int32?dwRop??//?raster?operation?code
????//??）;

????public?partial?class?Form1?:?Form
????{
????????Bitmap?bitmap;
????????bool?flag;
????????SolidBrush?brushbrush1?brush2;
????????Graphics?ClientDC?memDC?offScreenDC;
????????IntPtr?hdc?memdc;
????????//聲明一個API函數?
????????[System.Runtime.InteropServices.DllImportAttribute（“gdi32.dll“）]

????????private?static?extern?bool?BitBlt（
????????????IntPtr?hdcDest?//?目標?DC的句柄?
????????????int?nXDest
????????????int?nYDest
????????????int?nWidth
????????????int?nHeight
????????????IntPtr?hdcSrc?//?源DC的句柄?
????????????int?nXSrc
????????????int?nYSrc
????????????System.Int32?dwRop?//?光柵的處理數值?
????????）;
????????[DllImport（“gdi32.dll“?EntryPoint?=?“CreateCompatibleDC“）]
????????public?static?extern?IntPtr?CreateCompatibleDC（IntPtr?hdc）;

????????[DllImport（“gdi32.dll“?EntryPoint?=?“Selectobject“）]
????????public?static?extern?IntPtr?Selectobject（IntPtr?hdc?IntPtr?hbitmap）;

????????[DllImport（“gdi32.dll“?EntryPoint?=?“DeleteDC“）]
????????public?static?extern?IntPtr?DeleteDC（IntPtr?hDc）;

????????[DllImport（“gdi32.dll“?EntryPoint?=?“Deleteobject“）]
????????public?static?extern?IntPtr?Deleteobject（IntPtr?bmp）;
?
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????????bitmap?=?new?Bitmap（600?600）;
????????????brush1?=?new?SolidBrush（Color.Red）;
????????????brush2?=?new?SolidBrush（Color.Blue）;
????????}

????????private?void?timer1_Tick（object?sender?EventArgs?e）
????????{
????????????DateTime?t?=?DateTime.Now;
????????????ClientDC?=?this.CreateGraphics（）;
????????????memDC?=?Graphics.FromImage（bitmap）;
????????????if?（flag）
????????????{
????????????????brush?=?brush1;
????????????????flag?=?false;
????????????}
????????????else
????????????{
????????????????brush?=?brush2;
????????????????flag?=?true;
????????????}
????????????for?（int?j?=?0;?j?????????????{
????????????????for?（int?i?=?0;?i?????????????????{
????????????????????ClientDC.FillEllipse（brush?i?*?10?j?*?10?10?10）;
????????????????}
????????????}
????????????DateTime?t2?=?DateTime.Now;
????????????TimeSpan?sp?=?t2?-?t;
????????????float?per?=?1000?/?sp.Milliseconds;
????????????this.label1.Text?=?“速度“?+?per.ToString（）?+?“幀/秒“;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
??????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????11264??2013-07-02?21:26??BitBltTest\BitBltTest\bin\Debug\BitBltTest.exe

?????文件??????26112??2013-07-02?21:26??BitBltTest\BitBltTest\bin\Debug\BitBltTest.pdb

?????文件??????14328??2013-07-02?21:26??BitBltTest\BitBltTest\bin\Debug\BitBltTest.vshost.exe

?????文件????????490??2009-06-11?05:14??BitBltTest\BitBltTest\bin\Debug\BitBltTest.vshost.exe.manifest

?????文件???????3766??2013-07-02?19:47??BitBltTest\BitBltTest\BitBltTest.csproj

?????文件???????6104??2013-07-02?21:26??BitBltTest\BitBltTest\Form1.cs

?????文件???????4690??2013-07-02?20:07??BitBltTest\BitBltTest\Form1.Designer.cs

?????文件???????6398??2013-07-02?20:07??BitBltTest\BitBltTest\Form1.resx

?????文件????????817??2013-07-02?21:26??BitBltTest\BitBltTest\obj\Debug\BitBltTest.csproj.FileListAbsolute.txt

?????文件????????847??2013-07-02?20:07??BitBltTest\BitBltTest\obj\Debug\BitBltTest.csproj.GenerateResource.Cache

?????文件??????11264??2013-07-02?21:26??BitBltTest\BitBltTest\obj\Debug\BitBltTest.exe

?????文件????????180??2013-07-02?20:07??BitBltTest\BitBltTest\obj\Debug\BitBltTest.Form1.resources

?????文件??????26112??2013-07-02?21:26??BitBltTest\BitBltTest\obj\Debug\BitBltTest.pdb

?????文件????????180??2013-07-02?19:47??BitBltTest\BitBltTest\obj\Debug\BitBltTest.Properties.Resources.resources

?????文件????????491??2013-07-02?19:03??BitBltTest\BitBltTest\Program.cs

?????文件???????1352??2013-07-02?19:03??BitBltTest\BitBltTest\Properties\AssemblyInfo.cs

?????文件???????2870??2013-07-02?19:03??BitBltTest\BitBltTest\Properties\Resources.Designer.cs

?????文件???????5612??2013-07-02?19:03??BitBltTest\BitBltTest\Properties\Resources.resx

?????文件???????1095??2013-07-02?19:03??BitBltTest\BitBltTest\Properties\Settings.Designer.cs

?????文件????????249??2013-07-02?19:03??BitBltTest\BitBltTest\Properties\Settings.settings

?????文件????????920??2013-07-02?19:04??BitBltTest\BitBltTest.sln

????..A..H.??????7680??2013-07-02?19:04??BitBltTest\BitBltTest.suo

?????目錄??????????0??2013-07-02?19:04??BitBltTest\BitBltTest\obj\Debug\TempPE

?????目錄??????????0??2013-07-02?19:56??BitBltTest\BitBltTest\bin\Debug

?????目錄??????????0??2013-07-02?21:26??BitBltTest\BitBltTest\obj\Debug

?????目錄??????????0??2013-07-02?19:03??BitBltTest\BitBltTest\bin

?????目錄??????????0??2013-07-02?19:03??BitBltTest\BitBltTest\obj

?????目錄??????????0??2013-07-02?19:03??BitBltTest\BitBltTest\Properties

?????目錄??????????0??2013-07-02?21:26??BitBltTest\BitBltTest

?????目錄??????????0??2013-07-02?19:04??BitBltTest

............此處省略3個文件信息