C#通过API获取接收数据窗体控件句柄，并向该句柄发送文本信息
将一组数据自动写到第三方的界面上，通过鼠标拖拽传值到数据接收界面，代替手工录入。
const int GW_HWNDFIRST = 0; //{同级别 Z 序最上}
const int GW_HWNDLAST = 1; //{同级别 Z 序最下}
const int GW_HWNDNEXT = 2; //{同级别 Z 序之下}
const int GW_HWNDPREV = 3; //{同级别 Z 序之上}
const int GW_OWNER = 4; //{属主窗口}
const int GW_CHILD = 5; //{子窗口中的最上}
[DllImport("user32.dll", EntryPoint = "GetWindow")]//获取窗体句柄，hwnd为源窗口句柄
/*wCmd指定结果窗口与源窗口的关系，它们建立在下述常数基础上：
GW_CHILD
寻找源窗口的第一个子窗口
GW_HWNDFIRST
为一个源子窗口寻找第一个兄弟（同级）窗口，或寻找第一个顶级窗口
GW_HWNDLAST
为一个源子窗口寻找最后一个兄弟（同级）窗口，或寻找最后一个顶级窗口
GW_HWNDNEXT
为源窗口寻找下一个兄弟窗口
GW_HWNDPREV
为源窗口寻找前一个兄弟窗口
GW_OWNER
寻找窗口的所有者
*/
public static extern int GetWindow(
int hwnd,
int wCmd
);
[DllImport("user32.dll", EntryPoint = "SetParent")]//设置父窗体
public static extern int SetParent(
int hWndChild,
int hWndNewParent
);
[DllImport("user32.dll", EntryPoint = "GetCursorPos")]//获取鼠标坐标
public static extern int GetCursorPos(
ref POINTAPI lpPoint
);
[StructLayout(LayoutKind.Sequential)]//定义与API相兼容结构体，实际上是一种内存转换
public struct POINTAPI
{
public int X;
public int Y;
}
[DllImport("user32.dll", EntryPoint = "WindowFromPoint")]//指定坐标处窗体句柄
public static extern int WindowFromPoint(
int xPoint,
int yPoint
);
[DllImport("User32")]
public extern static void mouse_event(int dwFlags, int dx, int dy, int dwData, IntPtr dwExtraInfo);
[DllImport("User32")]
public extern static void SetCursorPos(int x, int y);
[DllImport("User32")]
public extern static bool GetCursorPos(out POINT p);
[StructLayout(LayoutKind.Sequential)]
public struct POINT { public int X; public int Y; }
public enum MouseEventFlags
{
Move = 0x0001,
LeftDown = 0x0002,
LeftUp = 0x0004,
RightDown = 0x0008,
RightUp = 0x0010,
MiddleDown = 0x0020,
MiddleUp = 0x0040,
Wheel = 0x0800, Absolute = 0x8000
}
/// <summary>
/// 自动双击事件
/// </summary>
/// <param name="x">x坐标</param>
/// <param name="y">y坐标</param>
private void AutoDoubleClick(int x, int y)
{
POINT point = new POINT();
GetCursorPos(out point);
try { SetCursorPos(x, y);
mouse_event((int)(MouseEventFlags.LeftDown | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
mouse_event((int)(MouseEventFlags.LeftUp | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
mouse_event((int)(MouseEventFlags.LeftDown | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
mouse_event((int)(MouseEventFlags.LeftUp | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
mouse_event((int)(MouseEventFlags.LeftDown | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
mouse_event((int)(MouseEventFlags.LeftUp | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
}
finally
{
SetCursorPos(point.X, point.Y);
}
}
/// <summary>
/// 自动单机事件
/// </summary>
/// <param name="x">x坐标</param>
/// <param name="y">y坐标</param>
private void AutoClick(int x, int y)
{
POINT point = new POINT();
GetCursorPos(out point);
try
{
SetCursorPos(x, y);
mouse_event((int)(MouseEventFlags.LeftDown | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
mouse_event((int)(MouseEventFlags.LeftUp | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
}
finally
{
SetCursorPos(point.X, point.Y);
}
}
// Find Window
// 查找窗体
// @para1: 窗体的类名 例如对话框类是"#32770"
// @para2: 窗体的标题 例如打开记事本 标题是"无标题 - 记事本" 注意 - 号两侧的空格
// return: 窗体的句柄
[DllImport("User32.dll", EntryPoint = "FindWindow")]
public static extern IntPtr FindWindow(string className, string windowName);
// Find Window Ex
// 查找窗体的子窗体
// @para1: 父窗体的句柄 如果为null，则函数以桌面窗口为父窗口，查找桌面窗口的所有子窗口
// @para2: 子窗体的句柄 如果为null，从@para1的直接子窗口的第一个开始查找
// @para3: 子窗体的类名 为""表示所有类
// @para4: 子窗体的标题 为""表示要查找的窗体无标题 如空白的textBox控件
// return: 子窗体的句柄
[DllImport("user32.dll", EntryPoint = "FindWindowEx")]
private static extern IntPtr FindWindowEx(
IntPtr hwndParent,
IntPtr hwndChildAfter,
string lpszClass,
string lpszWindow);
// SendMessage
// 向窗体发送消息
// @para1: 窗体句柄
// @para2: 消息类型
// @para3: 附加的消息信息
// @para4: 附加的消息信息
[DllImport("User32.dll", EntryPoint = "SendMessage")]
private static extern int SendMessage(
IntPtr hWnd,
int Msg,
IntPtr wParam,
string lParam);
// 消息类型（部分）
const int WM_GETTEXT = 0x000D; // 获得窗体文本 如获得对话框标题
const int WM_SETTEXT = 0x000C; // 设置窗体文本 如设置文本框内容
const int WM_CLICK = 0x00F5; // 发送点击消息如调用该窗体（按钮）的"button1_Click();"
const int WM_LBUTTONDOWN = 0x0201;
const int WM_LBUTTONUP = 0x0202;
//const int WM_LBUTTONDBLCLK = 0x0203;
const int WM_MOUSEMOVE = 0x200;
// const int WM_LBUTTONDOWN = 0x201;
const int WM_RBUTTONDOWN = 0x204;
const int WM_MBUTTONDOWN = 0x207;
// const int WM_LBUTTONUP = 0x202;
const int WM_RBUTTONUP = 0x205;
//const int WM_MBUTTONUP = 0x208;
//const int WM_LBUTTONDBLCLK = 0x203;
const int WM_RBUTTONDBLCLK = 0x206;
const int WM_MBUTTONDBLCLK = 0x209;
const int WM_MOUSEWHEEL = 0x020A;
public const int WM_SYSKEYDOWN = 0x0104;
public const int WM_SETFOCUS = 0x0007;
public const int WM_KEYDOWN = 0x0100;
// 本程序针对指定的另一程序窗体因此声名了如下变量
IntPtr txt = new IntPtr(0);// 文本框
///////////////////////////////////////////
const int GW_HWNDFIRST = 0; //{同级别 Z 序最上}
const int GW_HWNDLAST = 1; //{同级别 Z 序最下}
const int GW_HWNDNEXT = 2; //{同级别 Z 序之下}
const int GW_HWNDPREV = 3; //{同级别 Z 序之上}
const int GW_OWNER = 4; //{属主窗口}
const int GW_CHILD = 5; //{子窗口中的最上}
[DllImport("user32.dll", EntryPoint = "GetWindow")]//获取窗体句柄，hwnd为源窗口句柄
/*wCmd指定结果窗口与源窗口的关系，它们建立在下述常数基础上：
GW_CHILD
寻找源窗口的第一个子窗口
GW_HWNDFIRST
为一个源子窗口寻找第一个兄弟（同级）窗口，或寻找第一个顶级窗口
GW_HWNDLAST
为一个源子窗口寻找最后一个兄弟（同级）窗口，或寻找最后一个顶级窗口
GW_HWNDNEXT
为源窗口寻找下一个兄弟窗口
GW_HWNDPREV
为源窗口寻找前一个兄弟窗口
GW_OWNER
寻找窗口的所有者
*/
public static extern int GetWindow(
int hwnd,
int wCmd
);
[DllImport("user32.dll", EntryPoint = "SetParent")]//设置父窗体
public static extern int SetParent(
int hWndChild,
int hWndNewParent
);
[DllImport("user32.dll", EntryPoint = "GetCursorPos")]//获取鼠标坐标
public static extern int GetCursorPos(
ref POINTAPI lpPoint
);
[StructLayout(LayoutKind.Sequential)]//定义与API相兼容结构体，实际上是一种内存转换
public struct POINTAPI
{
public int X;
public int Y;
}
[DllImport("user32.dll", EntryPoint = "WindowFromPoint")]//指定坐标处窗体句柄
public static extern int WindowFromPoint(
int xPoint,
int yPoint
);
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