开发学院软件开发C语言 C#对游戏手柄的编程开发-API篇(2) 阅读

C#对游戏手柄的编程开发-API篇(2)

 2009-03-29 08:22:06 来源:WEB开发网   
核心提示: 这时我们就要用到以下的API函数,/// <summary> /// 获取操纵杆位置和按钮状态 /// </summary> /// <param name="uJoyID"></param> /// <param

这时我们就要用到以下的API函数。

/// <summary>
            /// 获取操纵杆位置和按钮状态
            /// </summary>
            /// <param name="uJoyID"></param>
            /// <param name="pji"></param>
            /// <returns></returns>
            [DllImport("winmm.dll")]
            public static extern int joyGetPos(int uJoyID, ref JOYINFO pji);
            /// <summary>
            /// 获取操纵杆位置和按钮状态
            /// </summary>
            /// <param name="uJoyID"></param>
            /// <param name="pji"></param>
            /// <returns></returns>
            [DllImport("winmm.dll")]
            public static extern int joyGetPosEx(int uJoyID, ref JOYINFOEX pji);

上面的两个API函数,我们可以从中任选一个,但joyGetPos函数只能取得1,2,3,4号四个按钮的状态。所以建议不用,下面只重讲解joyGetPosEx函数!

JOYINFO 与 JOYINFOEX 是属于结构体,它们的定义如下:

#region 游戏手柄的位置与按钮状态
            /// <summary>
            /// 游戏手柄的位置与按钮状态
            /// </summary>
            [StructLayout(LayoutKind.Sequential)]
            public struct JOYINFO
            {
            public int wXpos;
            public int wYpos;
            public int wZpos;
            public int wButtons;
            }
            /// <summary>
            /// 游戏手柄的位置与按钮状态
            /// </summary>
            [StructLayout(LayoutKind.Sequential)]
            public struct JOYINFOEX
            {
            /// <summary>
            /// Size, in bytes, of this structure.
            /// </summary>
            public int dwSize;
            /// <summary>
            /// Flags indicating the valid information returned in this structure. Members that do not contain valid information are set to zero.
            /// </summary>
            public int dwFlags;
            /// <summary>
            /// Current X-coordinate.
            /// </summary>
            public int dwXpos;
            /// <summary>
            /// Current Y-coordinate.
            /// </summary>
            public int dwYpos;
            /// <summary>
            /// Current Z-coordinate.
            /// </summary>
            public int dwZpos;
            /// <summary>
            /// Current position of the rudder or fourth joystick axis.
            /// </summary>
            public int dwRpos;
            /// <summary>
            /// Current fifth axis position.
            /// </summary>
            public int dwUpos;
            /// <summary>
            /// Current sixth axis position.
            /// </summary>
            public int dwVpos;
            /// <summary>
            /// Current state of the 32 joystick buttons. The value of this member can be set to any combination of JOY_BUTTONn flags, where n is a value in the range of 1 through 32 corresponding to the button that is pressed.
            /// </summary>
            public int dwButtons;
            /// <summary>
            /// Current button number that is pressed.
            /// </summary>
            public int dwButtonNumber;
            /// <summary>
            /// Current position of the point-of-view control. Values for this member are in the range 0 through 35,900. These values represent the angle, in degrees, of each view multiplied by 100.
            /// </summary>
            public int dwPOV;
            /// <summary>
            /// Reserved; do not use.
            /// </summary>
            public int dwReserved1;
            /// <summary>
            /// Reserved; do not use.
            /// </summary>
            public int dwReserved2;
            }
            #endregion

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Tags:游戏 手柄 编程

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