graphics.h之鼠标

一、头文件

#include <graphics.h> 

二、鼠标功能

以下截取自graphics.h的117行到145行

// Old mouse related functions旧鼠标相关功能
// Mouse message这个对应下面的UINT uMsg
//        WM_MOUSEMOVE        Mouse moves鼠标移动
//        WM_MOUSEWHEEL        Mouse wheel is rotated鼠标滚轮旋转
//        WM_LBUTTONDOWN        Left mouse button is pressed按下鼠标左键
//        WM_LBUTTONUP        Left mouse button is released鼠标左键被释放
//        WM_LBUTTONDBLCLK    Left mouse button is double-clicked双击鼠标左键
//        WM_MBUTTONDOWN        Middle mouse button is pressed按下鼠标中键
//        WM_MBUTTONUP        Middle mouse button is released
//        WM_MBUTTONDBLCLK    Middle mouse button is double-clicked
//        WM_RBUTTONDOWN        Right mouse button is pressed
//        WM_RBUTTONUP        Right mouse button is released
//        WM_RBUTTONDBLCLK    Right mouse button is double-clicked
struct MOUSEMSG
{
    UINT uMsg;                // Mouse message鼠标消息，对应上面Mouse message，就是不同的状态，用== !=
    bool mkCtrl        :1;        // Indicates whether the CTRL key is pressed指示是否按下了 CTRL 键
    bool mkShift    :1;        // Indicates whether the SHIFT key is pressed
    bool mkLButton    :1;        // Indicates whether the left mouse button is pressed指示是否按下鼠标左键
    bool mkMButton    :1;        // Indicates whether the middle mouse button is pressed
    bool mkRButton    :1;        // Indicates whether the right mouse button is pressed
    short x;                // The x-coordinate of the cursor光标的 x 坐标
    short y;                // The y-coordinate of the cursor
    short wheel;            // The distance the wheel is rotated, expressed in multiples or divisions of 120轮转动的距离，以120的倍数或除数表示
};
_EASYX_DEPRECATE                            bool MouseHit();            // Indicates whether there are mouse messages表示是否有鼠标消息
_EASYX_DEPRECATE_WITHNEW(getmessage)        MOUSEMSG GetMouseMsg();        // Get a mouse message. if mouse message queue is empty, wait.获取鼠标消息。 如果鼠标消息队列为空，请等待。
_EASYX_DEPRECATE_WITHNEW(peekmessage)        bool PeekMouseMsg(MOUSEMSG *pMsg, bool bRemoveMsg = true);    // Get a mouse message and return immediately获取鼠标消息并立即返回
_EASYX_DEPRECATE_WITHNEW(flushmessage)        void FlushMouseMsgBuffer();    // Empty the mouse message buffer清空鼠标消息缓冲区

三、应用实例

MOUSEMSG m;        // 定义鼠标消息
while (MouseHit())  // 检测当前是否有鼠标消息
{
    m = GetMouseMsg();
    if (m.uMsg == WM_MOUSEMOVE)  // 到鼠标移动时            
    {
            person.update(m.x, m.y); // person的位置等于鼠标所在的位置//自己定义的person.update
    }
}