C语言，移动鼠标获得当鼠标当前位置坐标

/*
功能：
C语言，移动鼠标获得当鼠标当前位置坐标。
*/
#include<Windows.h>

void main()
{
LONG zx = -1;
LONG zy = -1;
POINT ptB = { 0, 0 };
/*
typedef struct tagPOINT
{
LONG  x;
LONG  y;
} POINT, *PPOINT, NEAR *NPPOINT, FAR *LPPOINT;

*/
while (1)
{
LPPOINT xy = &ptB;	//位置变量
GetCursorPos(xy);	//获取鼠标当前位置
//如果鼠标移动，（即当前的坐标改变则打印出坐标）打印出做坐标。
if ((zx != xy->x) || (zy != xy->y))
{
printf("x=%d,y=%d\n", xy->x, xy->y);
zx = xy->x;
zy = xy->y;
}
}
}