/// <summary>
/// 获取某个窗口中，某个位置的控件上的文本
/// </summary>
/// <param name="hWnd">要获取的窗口的句柄</param>
/// <param name="x">要获取文本的控件的x坐标</param>
/// <param name="y">要获取文本的控件的y坐标</param>
/// <returns>获取到的文本</returns>
public static string GetWindowText(IntPtr hWnd, int x, int y)
{
Win32API.POINT point = new Win32API.POINT()
{
x = x,
y = y
};
IntPtr handle = Win32API.ChildWindowFromPoint(hWnd, point);
if (handle == IntPtr.Zero)
{
logger.ErrorFormat("ChildWindowFromPoint失败, {0}", Marshal.GetLastWin32Error());
return(null);
}
int size = Win32API.SendMessage(handle, Win32API.WM_GETTEXTLENGTH, 0, 0);
if (size == 0)
{
return(string.Empty);
}
char[] title = new char[size];
SendMessage(handle, Win32API.WM_GETTEXT, size, Marshal.UnsafeAddrOfPinnedArrayElement(title, 0));
return(new string(title));
}