函数

MoveToEx

The MoveToEx function updates the current position to the specified point and optionally returns the previous position.//

更新当前位置到指定点，并有选择地返回原来的位置（意思原来的位置可返回值也可不返回值）

BOOL MoveToEx(
  HDC hdc,          // handle to device context
  int X,            // x-coordinate of new current position
  int Y,            // y-coordinate of new current position
  LPPOINT lpPoint   // old current position
);

Parameters

hdc

[in] Handle to a device context.

X

[in] Specifies the x-coordinate, in logical units, of the new position, in logical units. 指定的X坐标点

Y

[in] Specifies the y-coordinate, in logical units, of the new position, in logical units.指定的Y坐标点

lpPoint

[out] Pointer to a POINT structure that receives the previous current position. If this parameter is a NULL pointer, the previous position is not returned. //返回原来未指定的POINT结构体

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.

Windows NT/2000/XP: To get extended error information, call GetLastError.