用Kinect来控制鼠标的移动、单击、双击和右击 及PPT控制（Windows sdk）

定义一个结构
class MyPoint
{
public:
float fx;
float fy;
USHORT depth;
}; 
然后将骨骼各节点信息保存起来：（其实这里只用到了左右手的节点信息）
for (i = 0; i < NUI_SKELETON_POSITION_COUNT; i++)
{

// Add new position to the history buffer
m_History[i].push_front(point);
// Keep size of history buffer
if (m_History[i].size() > m_nThreshold)
m_History[i].pop_back();
}
从保存的数据中取出信息，控制鼠标：
void CKinect::HandleMouseMoveAndClick( )
{

if( m_History[NUI_SKELETON_POSITION_HAND_RIGHT].size( ) >= m_nThreshold )
{
// 新点;
MyPoint newPoint;
newPoint.fx = m_History[NUI_SKELETON_POSITION_HAND_RIGHT].front().fx;
newPoint.fy = m_History[NUI_SKELETON_POSITION_HAND_RIGHT].front().fy;
newPoint.depth = m_History[NUI_SKELETON_POSITION_HAND_RIGHT].front().depth;


// 旧点;
MyPoint oldPoint; 
std::list< MyPoint >::iterator iter= m_History[NUI_SKELETON_POSITION_HAND_RIGHT].begin( );
iter++;
oldPoint.fx = iter->fx;
oldPoint.fy = iter->fy;
oldPoint.depth = iter->depth;

// 左手新点;
MyPoint newPointLeft;
newPointLeft.fx = m_History[NUI_SKELETON_POSITION_HAND_LEFT].front().fx;
newPointLeft.fy = m_History[NUI_SKELETON_POSITION_HAND_LEFT].front().fy;
newPointLeft.depth = m_History[NUI_SKELETON_POSITION_HAND_LEFT].front().depth;

// 屏幕坐标系 转换因子;
int screenWidth = rcWorkArea.Width(); // GetSystemMetrics(SM_CXSCREEN); 
int screenHeight = rcWorkArea.Height();// GetSystemMetrics(SM_CYSCREEN); 

newPoint.fx = newPoint.fx * screenWidth ;
newPoint.fy = newPoint.fy * screenHeight ;
oldPoint.fx = oldPoint.fx * screenWidth ;
oldPoint.fy = oldPoint.fy * screenHeight ;

// 求位差;
float xOffset = newPoint.fx - oldPoint.fx;
float yOffset = newPoint.fy - oldPoint.fy;


// 计算位移结果;
POINT currentPoint;
POINT resultPoint;
::GetCursorPos( ¤tPoint );// 获取当前鼠标位置

if(xOffset < 30 || yOffset < 30)
{
resultPoint.x = static_cast(currentPoint.x + xOffset*2.5+0.5);
resultPoint.y = static_cast(currentPoint.y + yOffset*2.2+0.5);
}else if(xOffset < 80 || yOffset < 80)
{
resultPoint.x = static_cast(currentPoint.x + xOffset*2.8 +0.5);
resultPoint.y = static_cast(currentPoint.y + yOffset*2.5 +0.5);
}else 
{
resultPoint.x = static_cast(currentPoint.x + xOffset*3.1+0.5);
resultPoint.y = static_cast(currentPoint.y + yOffset*3.1+0.5);
}

// 评价;
if( resultPoint.x <= 0 ) 
resultPoint.x = 0;
if( resultPoint.x >= screenWidth )
resultPoint.x = screenWidth;
if( resultPoint.y <=0 )
resultPoint.y = 0;
if( resultPoint.y >= screenHeight )
resultPoint.y = screenHeight;

SetCursorPos( resultPoint.x , resultPoint.y );// 设置鼠标位置

// 处理鼠标点击; 
// 将特定的控件存放到容器中，使得只在指定的控件上实施点击：MousePointInCtrRect(m_hWnd,vecItemIDs,currentPoint)
vector vecItemIDs;
vecItemIDs.push_back(IDC_HANDCTR);
vecItemIDs.push_back(IDC_PPTCTR); 
vecItemIDs.push_back(IDC_BUTTON1);
vecItemIDs.push_back(IDC_BUTTON3);
vecItemIDs.push_back(IDC_LIST_MER);

// 不存在位移比较大的点; 
if((abs(newPoint.fx-oldPoint.fx) < 5
|| abs(newPoint.fy-oldPoint.fy) < 5) 
&& MousePointInCtrRect(m_hWnd,vecItemIDs,currentPoint) )
{
if(m_flagRecordBegin == 1)
{
m_start = clock();// 记录单击起始时间;
m_flagRecordBegin = 0; 
}
if(m_flagRecordBeginDoubleClick == 1)
{
m_startDoubleClick = clock(); // 记录双击起始时间;
m_flagRecordBeginDoubleClick = 0; 
}
clock_t now = clock(); 
if(now - m_start > 700 && now - m_start <= 1400) 
{ 

if(m_flagRightClick == false)//只记一次;
{
oldPointRight = newPoint;
oldPointLeft = newPointLeft;
m_flagRightClick = true;
}
} 

// 右手在指定控件的时间达到一定时间长度且左手向前移动，右击
if(now - m_start > 1000 && now - m_start <= 3500 && (oldPointLeft.depth - newPointLeft.depth) > 2000 ) 
{ 
m_flagRecordBegin = 1;
m_flagRecordBeginDoubleClick = 1;
this->RightClick();
m_flagRightClick = false; 
}

// 右手在指定控件的时间达到一定时间长度，左击
if(now - m_start > 3500 )
{ 
this->LeftClick() ; 
m_flagRecordBegin = 1;
m_flagRightClick = false; 
}

// 右手在指定控件的时间达到一定时间长度，双击
if(now - m_startDoubleClick > 6000 )
{ 
this->LeftClick() ; 
this->LeftClick() ; 
m_flagRecordBegin = 1;
m_flagRecordBeginDoubleClick = 1;

}

}else{// 操作位移较大的点,重新计时;
m_flagRecordBegin = 1; 
m_flagRecordBeginDoubleClick = 1;
} 
}
}

判断鼠标当前是否在指定控件上函数（MFC）
bool CKinect::MousePointInCtrRect(HWND hwnd,vector nItemNo,POINT point)
{ 

for (size_t i=0; i < nItemNo.size(); i++)
{
CRect rect; 
GetWindowRect(GetDlgItem(m_hWnd,nItemNo[i]),&rect); 
if(point.x> rect.left&&point.x <rect.right&&point.y rect.top)
{ 
return true;
} 
}
return false;
}
左击、右击：
void CKinect::LeftClick () { 
INPUT Input = {0};
// left down 
Input.type = INPUT_MOUSE;
Input.mi.dwFlags = MOUSEEVENTF_LEFTDOWN;
::SendInput(1,&Input,sizeof(INPUT));

// left up
::ZeroMemory(&Input,sizeof(INPUT));
Input.type = INPUT_MOUSE;
Input.mi.dwFlags = MOUSEEVENTF_LEFTUP;
::SendInput(1,&Input,sizeof(INPUT)); 
}

void CKinect::RightClick () { 
INPUT Input = {0};
// left down 
Input.type = INPUT_MOUSE;
Input.mi.dwFlags = MOUSEEVENTF_RIGHTDOWN;
::SendInput(1,&Input,sizeof(INPUT));

// left up
::ZeroMemory(&Input,sizeof(INPUT));
Input.type = INPUT_MOUSE;
Input.mi.dwFlags = MOUSEEVENTF_RIGHTUP;
::SendInput(1,&Input,sizeof(INPUT)); 
}

鼠标移动如果不够平滑，可以考虑线性插值？ 要想实现使用kinect来控制ppt，可以在定义好手势后发送PageUp,PageDown,F5,Shift+F5,以及ESC等键盘信息。

这样就可以了，代码就不贴了。