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2024年3月21日发(作者：什么是web应用)
C#写个类操作窗口（句柄操作）
实现过程：
过程一：找到当前鼠标位置的句柄
您的使用2个WinAPI（俺喜欢自己封装下来用）：
View Code
[DllImport("", EntryPoint = "GetCursorPos")]
public static extern bool GetCursorPos(out Point pt);
[DllImport("", EntryPoint = "WindowFromPoint")]
public static extern IntPtr WindowFromPoint(Point pt);
//鼠标位置的坐标
public static Point GetCursorPosPoint()
{
Point p = new Point();
if (GetCursorPos(out p))
{
return p;
}
return default(Point);
}
///
/// 找到句柄
///
/// 坐标
///
public static IntPtr GetHandle(Point p)
{
return WindowFromPoint(p);
}
过程二：改变窗口的Text
您的使用1个WinAPI：
View Code
[DllImport("", EntryPoint = "SendMessage")]
private static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);
///
/// 给窗口发送内容
///
/// 句柄
/// 要发送的内容
public static void SetText(IntPtr hWnd, string lParam)
{
SendMessage(hWnd, WM_SETTEXT, , lParam);
}
private const int WM_SETTEXT = 0x000C;
通过这个方法就能改变Text的值了。
思考：如果俺把这个窗口的句柄记录下来，下次不用鼠标获取，直接就能改变值不蛮好的嘛。
例如：我有个桌面系统老叫我输入用户名，密码。我记录用户名和密码的窗口句柄，然后改变他们的输入值，这样多省事。（只是举例，不考虑安全性）
问题：你会告诉我，窗口句柄的每次重建会变的呀，咋办。
回答：类名不变呀。
过程三：您的准备一些工具吧，例如：句柄找类名呀，类名找句柄什么的等等，下面会用到一些WinAPI
View Code
[DllImport("", EntryPoint = "FindWindow")]
private static extern IntPtr FindWindow(string IpClassName, string IpWindowName);
[DllImport("", EntryPoint = "FindWindowEx")]
private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string
lpszClass, string lpszWindow);
[DllImport("", EntryPoint = "GetParent")]
public static extern IntPtr GetParent(IntPtr hWnd);
[DllImport("", CharSet = )]
public static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCoun
t);
///
/// 找到句柄
///
/// 类名
///
public static IntPtr GetHandle(string IpClassName)
{
return FindWindow(IpClassName, null);
}
///
/// 子窗口句柄
///
/// 父窗口句柄
/// 前一个同目录级同名窗口句柄
/// 类名
///
public static IntPtr GetChildHandle(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszCl
ass)
{
return FindWindowEx(hwndParent, hwndChildAfter, lpszClass, null);
}
///
/// 全部子窗口句柄
///
/// 父窗口句柄
/// 类名
///
public static List
{
List
for (IntPtr hwndClient = GetChildHandle(hwndParent, , className); hwndClient !
= ; hwndClient = GetChildHandle(hwndParent, hwndClient, className))
{
(hwndClient);
}
return resultList;
}
///
/// 找类名
///
/// 句柄
///
public static string GetClassName(IntPtr hWnd)
{
StringBuilder lpClassName = new StringBuilder(128);
if (GetClassName(hWnd, lpClassName, ty) == 0)
{
throw new Exception("not found IntPtr!");
}
return ng();
}
思考：遍历桌面上所有的窗口，然后找类名，然后改他的Text，扯淡嘛,相同的类名太多了，找毛呀
。
实现：不仅记录类名，而且记录类名在父窗口出现的位置，然后通过桌面一层层找下来，最后找到这个句柄。（虽然不是太准，但是一般的还是能解决了，如果
你有什么好方式一起研究）。
过程四：实现一个WinHWND的类，可以把他的规则，他的父窗口类名，以及在父窗口中同类名出现的顺序记录下来，然后通过这些记
录的信息还原句柄。
View Code
public class WinHWND
{
public IntPtr HWND { get; set; }
public string ClassName { get; set; }
public WinHWND Parent { get; set; }
public int InParentSequence { get; set; }
private WinHWND() { }
public WinHWND(IntPtr hWnd)
{
= hWnd;
ame = GetClassName();
= GetParent();
ntSequence = GetInParentSequence();
}
private string GetClassName()
{
return ssName();
}
private WinHWND GetParent()
{
if (ent() == null)
{
throw new Exception("not found IntPtr!");
}
if (ent() == )
{
return null;
}
return new WinHWND(ent());
}
private int GetInParentSequence()
{
IntPtr IntprtParent = == null ? : ;
return ldHandles(IntprtParent, ame).IndexOf();
}
public override string ToString()
{
StringBuilder result = new StringBuilder();
for (WinHWND winHandle = this; winHandle != null; winHandle = )
{
(("{0}:{1};", Escape(ame),
ng()));
if (ntSequence == -1) break;
}
return ng().TrimEnd(';');
}
private static string GetBaseMark(string sMark)
{
string[] sMarks = (';');
return sMarks[ - 1].Split(':')[0];
}
private static string[] GetChildMarks(string sMark)
{
string[] sMarks = (';');
string[] sChildMarks = new string[ - 1];
for (int i = 0; i < ; i ++ )
{
sChildMarks[i] = sMarks[i ];
}
return sChildMarks;
}
//我一直觉得这段写很丑陋，谁能帮帮我改改
public static WinHWND GetWinHWND(string sMark)
{
List
string[] sChildMarks = GetChildMarks(sMark);
//由于主窗口在桌面出现所以很可能同名，所以要看看他的儿子和孙子...是不是都匹配
foreach (IntPtr baseHwnd in baseHwnds)
{
IntPtr handle = baseHwnd;
for (int i = - 1; i >= 0; i--)
{
string[] sChildMark = sChildMarks[i].Split(':');
try
{
handle = ldHandles(handle, UnEscape(sChildMark[0]))[(sC
hildMark[1])];
}
catch
{
break;
}
if (i == 0) return new WinHWND(handle);
}
continue;
}
return null;
}
#region 转义
private static string Escape(string arg)
{
return e(":", ":").Replace(";",";");
}
private static string UnEscape(string arg)
{
return e(":", ":").Replace(";", ";");
}
#endregion
public static WinHWND GetWinHWND()
{
return new WinHWND(dle(sorPosPoint()));
}
}
上全部代码，里面加了窗口的部分属性，扩展其他的属性，自己发挥吧，就是搞WinAPI
View Code
using System;
using c;
using ;
using ;
using pServices;
using g;
using tions;
namespace InformationCollectionDataFill
{
public class WinAPI
{
#region WinodwsAPI
[DllImport("", EntryPoint = "FindWindow")]
private static extern IntPtr FindWindow(string IpClassName, string IpWindowName);
[DllImport("", EntryPoint = "FindWindowEx")]
private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string
lpszClass, string lpszWindow);
[DllImport("", EntryPoint = "SendMessage")]
private static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);
[DllImport("", EntryPoint = "GetParent")]
public static extern IntPtr GetParent(IntPtr hWnd);
[DllImport("", EntryPoint = "GetCursorPos")]
public static extern bool GetCursorPos(out Point pt);
[DllImport("", EntryPoint = "WindowFromPoint", CharSet = , ExactSpell
ing = true)]
public static extern IntPtr WindowFromPoint(Point pt);
[DllImport("", CharSet = )]
public static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCoun
t);
[DllImport("", CharSet = )]
public static extern int GetWindowText(IntPtr hWnd, [Out, MarshalAs()]
StringBuilder lpString, int nMaxCount);
[DllImport("", CharSet = )]
public static extern int GetWindowRect(IntPtr hwnd, ref Rectangle rc);
[DllImport("", CharSet = )]
public static extern int GetClientRect(IntPtr hwnd, ref Rectangle rc);
[DllImport("", CharSet = )]
public static extern int MoveWindow(IntPtr hwnd, int x, int y, int nWidth, int nHeight, bool
bRepaint);
[DllImport("", CharSet = , SetLastError = true, ExactSpelling = true)]
public static extern int ScreenToClient(IntPtr hWnd, ref Rectangle rect);
#endregion
#region 封装API方法
///
/// 找到句柄
///
/// 类名
///
public static IntPtr GetHandle(string IpClassName)
{
return FindWindow(IpClassName, null);
}
///
/// 找到句柄
///
/// 坐标
///
public static IntPtr GetHandle(Point p)
{
return WindowFromPoint(p);
}
//鼠标位置的坐标
public static Point GetCursorPosPoint()
{
Point p = new Point();
if (GetCursorPos(out p))
{
return p;
}
return default(Point);
}
///
/// 子窗口句柄
///
/// 父窗口句柄
/// 前一个同目录级同名窗口句柄
/// 类名
///
public static IntPtr GetChildHandle(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszCl
ass)
{
return FindWindowEx(hwndParent, hwndChildAfter, lpszClass, null);
}
///
/// 全部子窗口句柄
///
/// 父窗口句柄
/// 类名
///
public static List
{
List
for (IntPtr hwndClient = GetChildHandle(hwndParent, , className); hwndClient !
= ; hwndClient = GetChildHandle(hwndParent, hwndClient, className))
{
(hwndClient);
}
return resultList;
}
///
/// 给窗口发送内容
///
/// 句柄
/// 要发送的内容
public static void SetText(IntPtr hWnd, string lParam)
{
SendMessage(hWnd, WM_SETTEXT, , lParam);
}
private const int WM_SETTEXT = 0x000C;
///
/// 获得窗口内容或标题
///
/// 句柄
///
public static string GetText(IntPtr hWnd)
{
StringBuilder result = new StringBuilder(128);
GetWindowText(hWnd, result, ty);
return ng();
}
///
/// 找类名
///
/// 句柄
///
public static string GetClassName(IntPtr hWnd)
{
StringBuilder lpClassName = new StringBuilder(128);
if (GetClassName(hWnd, lpClassName, ty) == 0)
{
throw new Exception("not found IntPtr!");
}
return ng();
}
///
/// 窗口在屏幕位置
///
/// 句柄
///
public static Rectangle GetWindowRect(IntPtr hWnd)
{
Rectangle result = default(Rectangle);
GetWindowRect(hWnd, ref result);
return result;
}
///
/// 窗口相对屏幕位置转换成父窗口位置
///
///
///
///
public static Rectangle ScreenToClient(IntPtr hWnd, Rectangle rect)
{
Rectangle result = rect;
ScreenToClient(hWnd, ref result);
return result;
}
///
/// 窗口大小
///
///
///
public static Rectangle GetClientRect(IntPtr hWnd)
{
Rectangle result = default(Rectangle);
GetClientRect(hWnd, ref result);
return result;
}
#endregion
}
public class WinHWND
{
public IntPtr HWND { get; set; }
public string ClassName { get; set; }
public WinHWND Parent { get; set; }
public int InParentSequence { get; set; }
private Rectangle _currentRect;
private string _Text;
private int _Left;
private int _Top;
private int _Width;
private int _Height;
public string Text
{
get
{
return _Text == default(string) ? t() : _Text;
}
set
{
_Text = value;
t(, value);
}
}
public int Left
{
get
{
return _Left == default(int) ? _ : _Left;
}
set
{
_Left = value;
ndow(, value, , , , true);
}
}
public int Top
{
get
{
return _Top == default(int) ? _ : _Top;
}
set
{
_Top = value;
ndow(, , value, , , true);
}
}
public int Width
{
get
{
return _Width == default(int) ? _ : _Width;
}
set
{
_Width = value;
ndow(, , , value, , true);
}
}
public int Height
{
get
{
return _Height == default(int) ? _ : _Height;
}
set
{
_Height = value;
ndow(, , , , value, true);
}
}
private WinHWND() { }
public WinHWND(IntPtr hWnd)
{
= hWnd;
ame = GetClassName();
= GetParent();
ntSequence = GetInParentSequence();
this._currentRect = GetRect();
}
private string GetClassName()
{
return ssName();
}
private WinHWND GetParent()
{
if (ent() == null)
{
throw new Exception("not found IntPtr!");
}
if (ent() == )
{
return null;
}
return new WinHWND(ent());
}
private int GetInParentSequence()
{
IntPtr IntprtParent = == null ? : ;
return ldHandles(IntprtParent, ame).IndexOf();
}
private Rectangle GetRect()
{
if ( == null) return default(Rectangle);
Rectangle clientSize = entRect();
Rectangle clientPoint = ToClient(, dowRect(th
));
return new Rectangle(clientPoint.X, clientPoint.Y, , );
}
public static WinHWND GetWinHWND()
{
return new WinHWND(dle(sorPosPoint()));
}
public override string ToString()
{
StringBuilder result = new StringBuilder();
for (WinHWND winHandle = this; winHandle != null; winHandle = )
{
(("{0}:{1};", Escape(ame),
ng()));
if (ntSequence == -1) break;
}
return ng().TrimEnd(';');
}
private static string GetBaseMark(string sMark)
{
string[] sMarks = (';');
return sMarks[ - 1].Split(':')[0];
}
private static string[] GetChildMarks(string sMark)
{
string[] sMarks = (';');
string[] sChildMarks = new string[ - 1];
for (int i = 0; i < ; i ++ )
{
sChildMarks[i] = sMarks[i];
}
return sChildMarks;
}
//我一直觉得这段写很丑陋，谁能帮帮我改改
public static WinHWND GetWinHWND(string sMark)
{
List
string[] sChildMarks = GetChildMarks(sMark);
//由于主窗口在桌面出现所以很可能同名，所以要看看他的儿子和孙子...是不是都匹配
foreach (IntPtr baseHwnd in baseHwnds)
{
IntPtr handle = baseHwnd;
for (int i = - 1; i >= 0; i--)
{
string[] sChildMark = sChildMarks[i].Split(':');
try
{
handle = ldHandles(handle, UnEscape(sChildMark[0]))[(sC
hildMark[1])];
}
catch
{
break;
}
if (i == 0) return new WinHWND(handle);
}
continue;
}
return null;
}
#region 转义
private static string Escape(string arg)
{
return e(":", ":").Replace(";",";");
}
private static string UnEscape(string arg)
{
return e(":", ":").Replace(";", ";");
}
#endregion
}
}
效果
:
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