SetCursorPos坐标系怎么改？

Parameters：X-[in] Specifies the new x-coordinate of the cursor, in screen coordinates.

                   CRect rect; 
                     this->GetWindowRect(rect);
                   this->ScreenToClient(&rect);
                   //this->ClientToScreen(&rect);
                   SetCursorPos(centerPoint.x,centerPoint.y);
    //希望捕捉到最近的点

SetCursorPos还是屏幕坐标，可以获得客户区原点相对屏幕原点的坐标自己做换算吗？

    CRect rect; this->GetWindowRect(rect);
               SetCursorPos(rect.left+PTRI->m_ptOrigin.x,rect.top+PTRI->m_ptOrigin.y);

下一个问题。。。SetCursor(LoadCursor(NULL, IDC_SIZENS));闪烁