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Title: 关于C#二次开发6204BC的问题，调用GetData报内存受保护huo'sun'... [Print this page]

Author: Stillwater Time: 2020-7-9 14:18
Title: 关于C#二次开发6204BC的问题，调用GetData报内存受保护huo'sun'...
Edited by Stillwater at 2020-7-9 14:20

我在用C＃二次开发时遇到调用HTHardDll.dll中的dsoHTGetData（）时发生“ System.AccessViolationException：“尝试读取或写入受保护的内存。这通常指示其他内存已损坏。”
”的错误，请问我的代码哪儿有问题吗？谢谢解答
[DllImport（“ HTHardDll.dll”，CharSet = CharSet.Unicode，CallingConvention = CallingConvention.StdCall）]
   p'rivate  unsafe extern short short dsoHTGetData（short nDeviceIndex，short * pCH1Data，short * pCH2Data，short * pCH3Data，short * pCH4Data，ControlData pControl）;
      private static bool GetData（index，out short [] bufferCH1，out short [] bufferCH2，out short [] bufferCH3，out short [] bufferCH4，ControlData pControl）
      {
         bool readSuccess = false;
         bufferCH1 =new short [pControl.nReadDataLen];
         bufferCH2 =new short [pControl.nReadDataLen];
         bufferCH3 =new short [pControl.nReadDataLen];
         bufferCH4 =new short [pControl.nReadDataLen];
         unsafe
         {
               fiexd（short * pBufferCH1 = bufferCH1）
               fiexd（short * pBufferCH2 = bufferCH2）
               fiexd（short * pBufferCH3 = bufferCH3）
               fiexd（short * pBufferCH4 = bufferCH4）
                  readSuccess = dsoHTGetData（index，pBufferCH1，pBufferCH2，pBufferCH3，pBufferCH4，pControl）！= 0;此处发生“AccessViolationException:“尝试读取或写入受保护的内存。这通常指示其他内存已损坏。”错误
         }
         return readSuccess;
      }

Author: rossi1984 Time: 2020-7-11 00:27
同问，没有官方的c#demo，太郁闷了，楼主实验成功了吗？

Author: rossi1984 Time: 2020-7-12 15:32
楼上大侠，我这里总是报警，要么 1`无法加载 DLL“HTHardDll.dll”: 找不到指定的模块。 (异常来自 HRESULT:0x8007007E)。
要么 2`试图加载格式不正确的程序。 (异常来自 HRESULT:0x8007000B)
切换项目属性的平台类别（X86，X64，ANY CPU）也不作用，请大侠指点一下，

Author: rossi1984 Time: 2020-7-25 10:11
借宝地在提问一下，请大神们关注一下吧
同样是RELAY_CONTROL的结构
在c++的demo中是这样定义的
typedef struct _HT_RELAY_CONTROL
{
      BOOL bCHEnable[MAX_CH_NUM];//此处定义的为 bool
      WORD nCHVoltDIV[MAX_CH_NUM];
      WORD nCHCoupling[MAX_CH_NUM];
      BOOL bCHBWLimit[MAX_CH_NUM];
      WORD nTrigSource;
      BOOL bTrigFilt;
      WORD nALT;
}RELAYCONTROL,*PRELAYCONTROL;
而在VB的demo中
Type RelayControl '详见SDK_HTHardDll_CHS.pdf
bCHEnable(3) As Long//此处又定义为long了
nCHVoltDIV(3) As Integer
nCHCoupling(3) As Long
bCHBWLimit(3) As Integer
nTrigSource As Integer
bTrigFilt As Long
nALT As Integer
End Type
现在我调用C#调用dll同样也是报警，如何处理呀

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