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c#函数的调用:包含使用指针IntPtr替代结构体数组和读取IntPtr的方法
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HSCAN_MSG[] msg1 = new HSCAN_MSG[10];
for (int i = 0; i < msg1.Length; i++)
{
msg1[i] = new HSCAN_MSG();
msg1[i].pData = new byte[8];
}
IntPtr[] ptArray = new IntPtr[1];
ptArray[0] = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(HSCAN_MSG)) * 10);
IntPtr pt = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(HSCAN_MSG)));
Marshal.Copy(ptArray, 0, pt, 1);
int count = HSCAN_ReadCANMessage(0x0, 0,pt, 10);
textBoxStatus.Text += "\r\n" + "读取0口:" + count.ToString() + "帧数据";
for (int j = 0; j < 10; j++)
{
msg1[j] =
(HSCAN_MSG)Marshal.PtrToStructure((IntPtr)((UInt32)pt+ j * Marshal.SizeOf(typeof(HSCAN_MSG)))
, typeof(HSCAN_MSG));
textBoxStatus.Text += "\r\n收到0口" + Convert.ToByte(msg1[j].pData[0]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[1]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[2]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[3]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[4]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[5]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[6]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[7]).ToString();
}
HSCAN_MSG[] msg1 = new HSCAN_MSG[10];
for (int i = 0; i < msg1.Length; i++)
{
msg1[i] = new HSCAN_MSG();
msg1[i].pData = new byte[8];
}
IntPtr[] ptArray = new IntPtr[1];
ptArray[0] = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(HSCAN_MSG)) * 10);
IntPtr pt = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(HSCAN_MSG)));
Marshal.Copy(ptArray, 0, pt, 1);
int count = HSCAN_ReadCANMessage(0x0, 0,pt, 10);
textBoxStatus.Text += "\r\n" + "读取0口:" + count.ToString() + "帧数据";
for (int j = 0; j < 10; j++)
{
msg1[j] =
(HSCAN_MSG)Marshal.PtrToStructure((IntPtr)((UInt32)pt+ j * Marshal.SizeOf(typeof(HSCAN_MSG)))
, typeof(HSCAN_MSG));
textBoxStatus.Text += "\r\n收到0口" + Convert.ToByte(msg1[j].pData[0]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[1]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[2]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[3]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[4]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[5]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[6]).ToString()
+ "|" + Convert.ToByte(msg1[j].pData[7]).ToString();
}