模拟鼠标键盘操作要用到:键盘钩子 钩子的本质是一段用以处理 系统消息的程序,通过系统调用,将其挂入系统,可以截获并处理相应的消息。
正好前段时间做过的项目有用到键盘钩子 可以发段代码给你参考:
#region 键盘钩子
//键盘Hook结构函数
[StructLayout(LayoutKind.Sequential)]
public class KeyBoardHookStruct
{
public int vkCode;
public int scanCode;
public int flags;
public int time;
public int dwExtraInfo;
}
//委托
public delegate int HookProc(int nCode, int wParam, IntPtr lParam);
static int hHook = 0;
public const int WH_KEYBOARD_LL = 13;
//LowLevel键盘截获,如果是WH_KEYBOARD=2,并不能对系统键盘截取,Acrobat Reader会在你截取之前获得键盘。
HookProc KeyBoardHookProcedure;
#region [DllImport("user32.dll")]
//设置钩子
[DllImport("user32.dll")]
public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
//抽掉钩子
public static extern bool UnhookWindowsHookEx(int idHook);
[DllImport("user32.dll")]
//调用下一个钩子
public static extern int CallNextHookEx(int idHook, int nCode, int wParam, IntPtr lParam);
[DllImport("kernel32.dll")]
public static extern int GetCurrentThreadId();
[DllImport("kernel32.dll")]
public static extern IntPtr GetModuleHandle(string name);
#endregion
#region 安装键盘钩子
public void Hook_Start()
{
if (hHook == 0)
{
KeyBoardHookProcedure = new HookProc(KeyBoardHookProc);
hHook = SetWindowsHookEx(WH_KEYBOARD_LL, KeyBoardHookProcedure,
GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName), 0);
//如果设置钩子失败.
if (hHook == 0)
{
Hook_Clear();
}
}
}
#endregion
#region 取消钩子事件
/// <summary>
/// 取消钩子事件
/// </summary>
public void Hook_Clear()
{
bool retKeyboard = true;
if (hHook != 0)
{
retKeyboard = UnhookWindowsHookEx(hHook);
hHook = 0;
}
}
#endregion
//到这里键盘钩子就已经设置好了 接下来就要写怎样控制模拟操作 给你举个例子
public int KeyBoardHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
KeyBoardHookStruct kbh = (KeyBoardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyBoardHookStruct));
Keys k = (Keys)Enum.Parse(typeof(Keys), kbh.vkCode.ToString());
switch (k)
{
case Keys.Tab:
if (kbh.flags == 0)
{// 这里写按下后做什么事}
else if (kbh.flags == 128)
{//放开后做什么事}
return 1;
................... }
return CallNextHookEx(hHook, nCode, wParam, lParam);
}
思路是这样的,你可以多学习这方面知识 就可以实现你想要做的事
|