怎么切换TabCtrol的当前页(有点挑战，希望会的朋友不吝赐教）！

[llsus]

有个程序A使用TabCtrol,有多个TabPage,我希望写另外一个程序B，在程序B中改变程序A中的当前TabPage，怎么实现？我已经知道程序A的每个TabPage的窗口句柄。有没有相关的方法或相关的API？

[llsus]

怎么这么快就沉了，不知道的朋友也帮我顶啊

[「已注销」]

SendMessage 这个可以实现 系统API
不过前提都是要有窗体

[寂小魔]

多多 观照。。。。。
关照

[llsus]

SendMessage 怎么实现？我WM_SETFOCUS 试过，失败了，可能用错了方法。应该用哪个消息？
不能使用鼠标消息，因为程序A点击TabPage的标题，会执行事件，我不希望事件被执行，只想切换页面。

[jimh]

可以使用custom message, 自己定义事件，自己处理，这个事件id要定义大一点，不能跟系统事件重复。

[llsus]

谢谢楼上朋友，我试试你的代码，然后在来交流

[llsus]

继续请教，遇到问题了


上面例子中的句柄是TabControl的句柄，我不知道， 我只知道每个TabPage的句柄

[SocketUpEx]

[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

或者

[DllImport("user32.dll", ExactSpelling=true, CharSet=CharSet.Auto)]
public static extern IntPtr GetParent(IntPtr hWnd);

TabPage的句柄怎么取出来的?难道不用先取出TabControl句柄才能取TabPage句柄?

[llsus]

这些问题我已经解决了，已经实现了跨进程选择TabControl的当前页，不过发送了TCM_SETCURSEL消息后，Tabcontrol的标题确实有变化，不过TabPage的内容并没有变，我再用ShowWindow显示一下对应的Tabpage试试看

[llsus]

确实可行啊，谢谢楼上朋友。

[「已注销」]

http://www.cnblogs.com/kevinGao/archive/2011/10/30/2231524.html
这里有个帖子
然后你可以在需要切换tab页的界面调用切换页面事件模拟传入参数。定义一个变量或者判断sender参数是否为空 在事件里面判断然后判断是否执行该方法

[SocketUpEx]

Tab控件有标准的Windows消息可以操作

[fsy123456accp]

好难啊 真的不知道 望赐教！

[SocketUpEx]

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Text;

namespace Text
{
    public class Program
    {
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        static extern UInt32 SendMessage(IntPtr hWnd, UInt32 Msg, UInt32 wParam, UInt32 lParam);

        public const UInt32 TCM_FIRST = 0x1300;
        public const UInt32 TCM_GETIMAGELIST = (TCM_FIRST + 2);
        public const UInt32 TCM_SETIMAGELIST = (TCM_FIRST + 3);
        public const UInt32 TCM_GETITEMCOUNT = (TCM_FIRST + 4);
        public const UInt32 TCM_GETITEMA = (TCM_FIRST + 5);
        public const UInt32 TCM_GETITEMW = (TCM_FIRST + 60);
        public const UInt32 TCM_SETITEMA = (TCM_FIRST + 6);
        public const UInt32 TCM_SETITEMW = (TCM_FIRST + 61);
        public const UInt32 TCM_INSERTITEMA = (TCM_FIRST + 7);
        public const UInt32 TCM_INSERTITEMW = (TCM_FIRST + 62);
        public const UInt32 TCM_DELETEITEM = (TCM_FIRST + 8);
        public const UInt32 TCM_DELETEALLITEMS = (TCM_FIRST + 9);
        public const UInt32 TCM_GETITEMRECT = (TCM_FIRST + 10);
        public const UInt32 TCM_GETCURSEL = (TCM_FIRST + 11);
        public const UInt32 TCM_SETCURSEL = (TCM_FIRST + 12);
        public const UInt32 TCM_HITTEST = (TCM_FIRST + 13);
        public const UInt32 TCM_SETITEMEXTRA = (TCM_FIRST + 14);
        public const UInt32 TCM_ADJUSTRECT = (TCM_FIRST + 40);
        public const UInt32 TCM_SETITEMSIZE = (TCM_FIRST + 41);
        public const UInt32 TCM_REMOVEIMAGE = (TCM_FIRST + 42);
        public const UInt32 TCM_SETPADDING = (TCM_FIRST + 43);
        public const UInt32 TCM_GETROWCOUNT = (TCM_FIRST + 44);
        public const UInt32 TCM_GETCURFOCUS = (TCM_FIRST + 47);
        public const UInt32 TCM_SETCURFOCUS = (TCM_FIRST + 48);
        public const UInt32 TCM_SETMINTABWIDTH = (TCM_FIRST + 49);
        public const UInt32 TCM_DESELECTALL = (TCM_FIRST + 50);
        public const UInt32 TCM_HIGHLIGHTITEM = (TCM_FIRST + 51);
        public const UInt32 TCM_SETEXTENDEDSTYLE = (TCM_FIRST + 52); // optional wParam == mask
        public const UInt32 TCM_GETEXTENDEDSTYLE = (TCM_FIRST + 53);

        static void Main(string[] args)
        {
            IntPtr h = new IntPtr(句柄自己取);
            UInt32 count = SendMessage(h, TCM_GETITEMCOUNT, 0, 0);
            Console.WriteLine("共有 " + count + " 个分页");

            UInt32 index = SendMessage(h, TCM_GETCURSEL, 0, 0);
            Console.WriteLine("当前选中第 " + (index + 1) + " 页");

            if (index == 0)
            {
                index = count - 1;
            }
            else
            {
                index = 0;
            }

            SendMessage(h, TCM_SETCURSEL, index, 0);
            Console.WriteLine("已跳转到 " + (index + 1) + " 页");

            Console.ReadKey();
        }
    }
}

非常简单