1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
public partial class Form1 : Form
{
[DllImport("USER32.DLL")]
static extern int GetWindowText(HWND hWnd, StringBuilder lpString, int nMaxCount);
[DllImport("USER32.DLL")]
static extern int GetWindowTextLength(HWND hWnd);
[DllImport("USER32.DLL")]
static extern bool IsWindowVisible(HWND hWnd);
[DllImport("USER32.DLL")]
static extern IntPtr GetShellWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, [Out] StringBuilder lParam);
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Form f = new Form();
f.Text = "Salut papa";
f.Show();
GetInfo();
}
private void GetInfo()
{
foreach (KeyValuePair<IntPtr, string> window in OpenWindowGetter.GetOpenWindows())
{
IntPtr handle = window.Key;
string title = window.Value;
if (title.Contains("Mise"))
{
// On s'amuse avec le bazar...
List<IntPtr> children = GetChildWindows(handle);
foreach (IntPtr fils in children)
{
int length = GetWindowTextLength(fils);
if (length == 0)
{
string a = GetText(fils);
Trace.WriteLine("Text : " + a);
}
else
{
StringBuilder builder = new StringBuilder(length);
GetWindowText(fils, builder, length + 1);
string result = builder.ToString();
Trace.WriteLine(result);
}
}
}
}
}
private static string GetText(IntPtr handle)
{
const uint WM_GETTEXTLENGTH = 0x000E;
const uint WM_GETTEXT = 0x000D;
// Gets the text length.
var length = (int)SendMessage(handle, WM_GETTEXTLENGTH, IntPtr.Zero, null);
// Init the string builder to hold the text.
var sb = new StringBuilder(length + 1);
// Writes the text from the handle into the StringBuilder
SendMessage(handle, WM_GETTEXT, (IntPtr)sb.Capacity, sb);
// Return the text as a string.
return sb.ToString();
}
public delegate bool Win32Callback(IntPtr hwnd, IntPtr lParam);
[DllImport("user32.Dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool EnumChildWindows(IntPtr parentHandle, Win32Callback callback, IntPtr lParam);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
static public extern IntPtr GetClassName(IntPtr hWnd, System.Text.StringBuilder lpClassName, int nMaxCount);
private static bool EnumWindow(IntPtr handle, IntPtr pointer)
{
GCHandle gch = GCHandle.FromIntPtr(pointer);
List<IntPtr> list = gch.Target as List<IntPtr>;
if (list == null)
throw new InvalidCastException("GCHandle Target could not be cast as List<IntPtr>");
list.Add(handle);
return true;
}
public List<IntPtr> GetChildWindows(IntPtr parent)
{
List<IntPtr> result = new List<IntPtr>();
GCHandle listHandle = GCHandle.Alloc(result);
try
{
Win32Callback childProc = new Win32Callback(EnumWindow);
EnumChildWindows(parent, childProc, GCHandle.ToIntPtr(listHandle));
}
finally
{
if (listHandle.IsAllocated)
listHandle.Free();
}
return result;
}
}
/// <summary>Contains functionality to get all the open windows.</summary>
public static class OpenWindowGetter
{
[DllImport("USER32.DLL")]
static extern bool EnumWindows(EnumWindowsProc enumFunc, int lParam);
[DllImport("USER32.DLL")]
static extern int GetWindowText(HWND hWnd, StringBuilder lpString, int nMaxCount);
[DllImport("USER32.DLL")]
static extern int GetWindowTextLength(HWND hWnd);
[DllImport("USER32.DLL")]
static extern bool IsWindowVisible(HWND hWnd);
[DllImport("USER32.DLL")]
static extern IntPtr GetShellWindow();
/// <summary>Returns a dictionary that contains the handle and title of all the open windows.</summary>
/// <returns>A dictionary that contains the handle and title of all the open windows.</returns>
public static IDictionary<HWND, string> GetOpenWindows()
{
HWND shellWindow = GetShellWindow();
Dictionary<HWND, string> windows = new Dictionary<HWND, string>();
EnumWindows(delegate(HWND hWnd, int lParam)
{
if (hWnd == shellWindow) return true;
if (!IsWindowVisible(hWnd)) return true;
int length = GetWindowTextLength(hWnd);
if (length == 0) return true;
StringBuilder builder = new StringBuilder(length);
GetWindowText(hWnd, builder, length + 1);
windows[hWnd] = builder.ToString();
return true;
}, 0);
return windows;
}
delegate bool EnumWindowsProc(HWND hWnd, int lParam);
} |
