C# 使用非托管C++；带C的lib#

我仍在尝试将C++非托管dll与C#一起使用

我的问题是：

我（从我的dll）获得了一个函数： C++:

我还有一个相同函数的VB示例：

    ReDim DevID(10) As Byte
Dim RetStat

Dim picb As PIC

DevID(0) = CMD_READ_VERSION
DevID(1) = 0
picb.BootAddr = &H3FFFFE
picb.BootCmd = CMD_READ_PROG_MEM
picb.BootDatLen = 2
picb.MaxRetrys = PicBootS.MaxRetry
picb.BytesPerBlock = 1
picb.BytesPerAddr = 1
RetStat = ReadPIC(PicBootS.PortHandle, picb, DevID(0))
If RetStat <= 0 Then
    ReadDeviceID = "0"
Else
    ReadDeviceID = CStr(((DevID(1) * 256) + DevID(0)) \ 32)
End If

地雷：

    public struct PIC
{
    public byte BootCmd;//{ get; set; }
    public byte BootDatLen ;//{ get; set; }
    public ulong BootAddr ; //{ get; set; }
    public byte BytesPerBlock; //{ get; set; }
    public byte BytesPerAddr ; //{ get; set; }
    public ushort MaxRetrys;  //{ get; set; }
}

---

BootAddr

应该是

uint

，而不是

ulong

。在哪里可以为u共享a+1？thx它起作用了我没看见我很难过。。。浪费了太多时间！发布解决方案作为答案，并获得一些代表；p我已经够了。

    ReDim DevID(10) As Byte
Dim RetStat

Dim picb As PIC

DevID(0) = CMD_READ_VERSION
DevID(1) = 0
picb.BootAddr = &H3FFFFE
picb.BootCmd = CMD_READ_PROG_MEM
picb.BootDatLen = 2
picb.MaxRetrys = PicBootS.MaxRetry
picb.BytesPerBlock = 1
picb.BytesPerAddr = 1
RetStat = ReadPIC(PicBootS.PortHandle, picb, DevID(0))
If RetStat <= 0 Then
    ReadDeviceID = "0"
Else
    ReadDeviceID = CStr(((DevID(1) * 256) + DevID(0)) \ 32)
End If

//PIC structure used for some functions
 typedef struct _PIC {
BYTE BootCmd;
BYTE BootDatLen;        //Number of bytes to read/write
DWORD BootAddr;         //24 bit memory address (Prog or EE)
BYTE BytesPerBlock;
BYTE BytesPerAddr;
WORD MaxRetrys;         //Number of retries before failure
 } PIC;

    public struct PIC
{
    public byte BootCmd;//{ get; set; }
    public byte BootDatLen ;//{ get; set; }
    public ulong BootAddr ; //{ get; set; }
    public byte BytesPerBlock; //{ get; set; }
    public byte BytesPerAddr ; //{ get; set; }
    public ushort MaxRetrys;  //{ get; set; }
}