如何用Sendmessage模拟鼠标单击事件？ ( 积分: 100 )

我想让我的鼠标在鼠标所在窗口而且所在位置实现单击左键！（或者在某个特定窗口）
我写过这样，但是好像不行！
GetCursorPos(&MousePoint);// 获取鼠标位置
SetCursorPos(MousePoint.x,MousePoint.y);
LPARAM lParam = MAKELPARAM(MousePoint.x,MousePoint.y);
HWND hwnd=::WindowFromPoint(MousePoint);
:: SendMessage(hwnd,WM_RBUTTONDOWN,0,lParam);
:: SendMessage(hwnd,WM_RBUTTONUP,0,lParam );
请大家帮个忙啊，谢谢了！

我想让我的鼠标在鼠标所在窗口而且所在位置实现单击左键！（或者在某个特定窗口）
我写过这样，但是好像不行！
GetCursorPos(&MousePoint);// 获取鼠标位置
SetCursorPos(MousePoint.x,MousePoint.y);
LPARAM lParam = MAKELPARAM(MousePoint.x,MousePoint.y);
HWND hwnd=::WindowFromPoint(MousePoint);
:: SendMessage(hwnd,WM_RBUTTONDOWN,0,lParam);
:: SendMessage(hwnd,WM_RBUTTONUP,0,lParam );
请大家帮个忙啊，谢谢了！

当然不行了。
在sendMessage前面
加setfocus(hwnd);就行了
你试试看

嗯，我那样试过了，是可以出来菜单，但是位置不对，可能是屏幕坐标和窗口坐标没转换，但是我用以下程序转换，好像位置也还是不对。能帮我再看看？
GetCursorPos(&MousePoint);// 获取鼠标位置
SetCursorPos(MousePoint.x,MousePoint.y);
HWND hwnd=::WindowFromPoint(MousePoint);
CPoint p2 = MousePoint;
ClientToScreen(&p2);
::SetFocus(hwnd);
LPARAM lParam = MAKELPARAM(p2.x,p2.y);
:: SendMessage(hwnd,WM_RBUTTONDOWN,0,lParam);
:: SendMessage(hwnd,WM_RBUTTONUP,0,lParam);

用mouse_event好了。比如：
mouse_event(MOUSEEVENTF_LEFTDOWN, X, Y, 0, 0);
mouse_event(MOUSEEVENTF_LEFTUP, X, Y, 0, 0);

谢谢你，用 mouse_event的可以，我试过了！
我只是想深入了解一下SendMessage的用法，因为SendMessage有好多用途！

在GetCursorPos后加上procedure TForm1.Button1Click(Sender: TObject);
Windows.ScreenToClient(hwnd, MousePoint);
就可以了；
此外，SetCursorPos是不必要的。

GetCursorPos(&MousePoint);// 获取鼠标位置
HWND hwnd=::WindowFromPoint(MousePoint);
::ScreenToClient(hwnd, &MousePoint);
LPARAM lParam = MAKELPARAM(MousePoint.x,MousePoint.y);
::SetFocus(hwnd);
:: SendMessage(hwnd,WM_RBUTTONDOWN,0,lParam);
:: SendMessage(hwnd,WM_RBUTTONUP,0,lParam);
这样吗？但是好像只能出来一次菜单（模拟一次右键），鼠标移动时不能再出来了！（我用了定时）
但是用
GetCursorPos(&MousePoint);// 获取鼠标位置
SetCursorPos(MousePoint.x,MousePoint.y);
LPARAM lParam1 = MAKELPARAM(MousePoint.x,MousePoint.y);
HWND hwnd=::WindowFromPoint(MousePoint);
::SetFocus(hwnd);
mouse_event(MOUSEEVENTF_RIGHTDOWN,0,0,0,0);
mouse_event(MOUSEEVENTF_RIGHTUP,0,0,0,0);
就可以随鼠标移动出现菜单！