using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Diagnostics;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.Runtime.InteropServices;
using?System.Drawing;

namespace?再次實(shí)驗(yàn)控件特性
{
????public?partial?class?DateTimePickerAdd?:?DateTimePicker
????{
????????const?string?DllPath?=?@“user32.dll“;

????????[DllImport（DllPath?EntryPoint?=?“SendMessageA“）]
????????private?static?extern?int?SendMessageA（IntPtr?hwnd?int?wMsg?IntPtr?wParam?object?lParam）;

????????[DllImport（DllPath）]
????????private?static?extern?IntPtr?GetWindowDC（IntPtr?hWnd）;

????????[DllImport（DllPath）]
????????private?static?extern?int?ReleaseDC（IntPtr?hWnd?IntPtr?hDC）;
????????const?int?WM_ERASEBKGND?=?0x14;
????????const?int?WM_NC_PAINT?=?0x85;
????????const?int?WM_PAINT?=?0xF;
????????const?int?WM_PRINTCLIENT?=?0x318;

????????//邊框顏色
????????private?Pen?BorderPen?=?new?Pen（SystemColors.ControlDark?2）;

????????///?

????????///?定義背景色私有變量
????????///?

????????private?Color?_backColor?=?Color.White;
????????///?

????????///?定義背景色屬性
????????///?

????????public?override?Color?BackColor
????????{
????????????get
????????????{
????????????????return?_backColor;
????????????}
????????????set
????????????{
????????????????_backColor?=?value;
????????????}
????????}

????????protected?override?void?WndProc（ref?System.Windows.Forms.Message?m）
????????{
????????????IntPtr?hDC?=?IntPtr.Zero;
????????????Graphics?gdc?=?null;
????????????switch?（m.Msg）
????????????{
????????????????//畫(huà)背景色
????????????????case?WM_ERASEBKGND:
????????????????????gdc?=?Graphics.FromHdc（m.WParam）;
????????????????????gdc.FillRectangle（new?SolidBrush（_backColor）?new?Rectangle（0?0?this.Width?this.Height））;
????????????????????gdc.Dispose（）;
????????????????????break;
????????????????case?WM_NC_PAINT:
????????????????????hDC?=?GetWindowDC（m.HWnd）;
????????????????????gdc?=?Graphics.FromHdc（hDC）;
????????????????????SendMessageA（this.Handle?WM_ERASEBKGND?hDC?0）;
????????????????????SendPrintClientMsg（）;
????????????????????SendMessageA（this.Handle?WM_PAINT?IntPtr.Zero?0）;
????????????????????m.Result?=?（IntPtr）1;????//?indicate?msg?has?been?processed
????????????????????ReleaseDC（m.HWnd?hDC）;
????????????????????gdc.Dispose（）;
????????????????????break;
????????????????//畫(huà)邊框
????????????????case?WM_PAINT:
????????????????????base.WndProc（ref?m）;
????????????????????hDC?=?GetWindowDC（m.HWnd）;
????????????????????gdc?=?Graphics.FromHdc（hDC）;
????????????????????OverrideControlBorder（gdc）;
????????????????????ReleaseDC（m.HWnd?hDC）;
????????????????????gdc.Dispose（）;
????????????????????break;
????????????????default:
????????????????????base.WndProc（ref?m）;
????????????????????break;
????????????}
????????}

????????private?void?SendPrintClientMsg（）
????????{
????????????//?We?send?this?message?for?the?control?

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1485??2016-03-16?17:01??C#界面分屏展示\bin\Debug\BallMachine_2.png

?????文件?????811520??2010-11-20?20:21??C#界面分屏展示\bin\Debug\user32.dll

?????文件??????24064??2016-12-07?14:52??C#界面分屏展示\bin\Debug\再次實(shí)驗(yàn)控件特性.exe

?????文件??????36352??2016-12-07?14:52??C#界面分屏展示\bin\Debug\再次實(shí)驗(yàn)控件特性.pdb

?????文件??????11600??2017-02-21?09:07??C#界面分屏展示\bin\Debug\再次實(shí)驗(yàn)控件特性.vshost.exe

?????文件????????490??2015-12-02?08:23??C#界面分屏展示\bin\Debug\再次實(shí)驗(yàn)控件特性.vshost.exe.manifest

?????文件?????811520??2010-11-20?20:21??C#界面分屏展示\bin\Release\user32.dll

?????文件??????23552??2016-09-14?18:24??C#界面分屏展示\bin\Release\再次實(shí)驗(yàn)控件特性.exe

?????文件??????34304??2016-09-14?18:24??C#界面分屏展示\bin\Release\再次實(shí)驗(yàn)控件特性.pdb

?????文件???????3935??2016-03-16?10:56??C#界面分屏展示\C#界面分屏展示.csproj

?????文件????????881??2017-02-21?09:06??C#界面分屏展示\C#界面分屏展示.sln

????..A..H.?????18432??2017-02-21?09:07??C#界面分屏展示\C#界面分屏展示.suo

?????文件???????3545??2016-12-07?14:52??C#界面分屏展示\DateTimePickerAdd.cs

?????文件???????1063??2016-03-16?10:52??C#界面分屏展示\DateTimePickerAdd.Designer.cs

?????文件??????21561??2016-12-07?14:52??C#界面分屏展示\Form1.cs

?????文件??????13340??2016-12-07?14:52??C#界面分屏展示\Form1.Designer.cs

?????文件??????11952??2016-12-07?14:52??C#界面分屏展示\Form1.resx

?????文件????????192??2017-02-21?09:07??C#界面分屏展示\obj\x86\Debug\C#界面分屏展示.csproj.FileListAbsolute.txt

?????文件??????19770??2016-12-07?14:51??C#界面分屏展示\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6344??2017-02-21?09:06??C#界面分屏展示\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????3190??2017-02-21?09:03??C#界面分屏展示\obj\x86\Debug\再次實(shí)驗(yàn)控件特性.csproj.FileListAbsolute.txt

?????文件????????975??2016-12-07?14:52??C#界面分屏展示\obj\x86\Debug\再次實(shí)驗(yàn)控件特性.csproj.GenerateResource.Cache

?????文件??????16177??2016-07-11?11:28??C#界面分屏展示\obj\x86\Debug\再次實(shí)驗(yàn)控件特性.csprojResolveAssemblyReference.cache

?????文件??????24064??2016-12-07?14:52??C#界面分屏展示\obj\x86\Debug\再次實(shí)驗(yàn)控件特性.exe

?????文件???????3963??2016-12-07?14:52??C#界面分屏展示\obj\x86\Debug\再次實(shí)驗(yàn)控件特性.Form1.resources

?????文件??????36352??2016-12-07?14:52??C#界面分屏展示\obj\x86\Debug\再次實(shí)驗(yàn)控件特性.pdb

?????文件????????180??2016-03-16?10:56??C#界面分屏展示\obj\x86\Debug\再次實(shí)驗(yàn)控件特性.Properties.Resources.resources

?????文件???????6478??2016-09-14?18:24??C#界面分屏展示\obj\x86\Release\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????1044??2016-09-14?18:24??C#界面分屏展示\obj\x86\Release\再次實(shí)驗(yàn)控件特性.csproj.FileListAbsolute.txt

?????文件????????975??2016-09-14?18:24??C#界面分屏展示\obj\x86\Release\再次實(shí)驗(yàn)控件特性.csproj.GenerateResource.Cache

............此處省略24個(gè)文件信息