c++函数头文件里面的声明：
BOOL WINAPI GAPICreateTypeW(
LPCWSTR lpszProjectFile,
LPDM_TYPE_DESCRIPTORW lpdmType,
DWORD dwFlags,
DWORD dwCreatorID,
LPMCP_NEWVARIABLE_DATA_EXW lpMemberdata,
LPCMN_ERRORW lpdmError);
我的一些代码：
[DllImport("dmclient.dll", EntryPoint = "GAPICreateTypeW", CharSet = CharSet.Unicode, CallingConvention = CallingConvention.Winapi)]
public static extern bool GAPICreateType([In] StringBuilder lpszProjectFile,
[In, Out] [MarshalAs(UnmanagedType.LPStruct)]
DM_TYPE_DESCRIPTOR lpdmType,
[In] UInt32 dwFlags,
[In] UInt32 dwCreatorID,
[In] [MarshalAs(UnmanagedType.LPArray)]
MCP_NEWVARIABLE_DATA_EX[] lpMemberdata,
[In, Out] [MarshalAs(UnmanagedType.LPStruct)]
CMN_ERROR lpdmError
);
我的调用方法：
public bool CreateStructType(string TypeName, string GroupName,S7Struct s7struct, ref CMN_ERROR err)
{
if (TypeName == "")
{
err.szErrorText = "变量名为空！";
return false;
}
DM_TYPE_DESCRIPTOR dmType = new DM_TYPE_DESCRIPTOR();
dmType.dmTypeRef.dwType = MDM_TAG_TYPE.DM_VARTYPE_STRUCT;
dmType.dmTypeRef.dwSize = 0;
dmType.dmTypeRef.szTypeName = TypeName;
//这部分只是对dmMembers数组的赋值
List<MCP_NEWVARIABLE_DATA_EX> dmMemberList = new List<MCP_NEWVARIABLE_DATA_EX>();
winccstruct2(s7struct.External, ref dmMemberList, true, GroupName, "");
winccstruct2(s7struct.Internal, ref dmMemberList, true, GroupName, "");
MCP_NEWVARIABLE_DATA_EX[] dmMembers = new MCP_NEWVARIABLE_DATA_EX[dmMemberList.Count];
dmType.dmType.dmArray.dwNumElements = (uint)dmMemberList.Count;
for (int i = 0; i < dmMemberList.Count; i++)
{
dmMembers[i] = dmMemberList[i];
}
bool ret;
StringBuilder sbProjectFile = new StringBuilder(255);
sbProjectFile.Append(ProjectFile.ToCharArray());
ret = DMClient.GAPICreateType(sbProjectFile, dmType, 1, 0, dmMembers, err);
return ret;
}
下面是他的一个调用事例：
//{{ODK_EXAMPLE}Create structured variable (MCP)}
//{{FUNCTION}GAPICreateType (MCP)}
//{{FUNCTION}(END)}
// =====================================================================
// Function: MyGAPICreateType_Struct(void) ODK DM CS
// =====================================================================
// Desc. : Create Data Structure of type "REG"
// REG( Wlanger(f), Xlanger(f), Ylanger(f), Zlanger(W)
//--------------------------------------------------------------------------------
void MyGAPICreateType_Struct()
{
// #define PROJ_PATH "C:\\siemens\\odk\\samples\\projects\\demo\\odk.mcp"
CMN_ERROR Error;
BOOL ret = FALSE;
TCHAR szText[255];
DM_TYPE_DESCRIPTOR dmType;
MCP_NEWVARIABLE_DATA_EX dmMembers[4];
DWORD dwFlags = MCP_NVAR_FLAG_CREATE;
DWORD dwCreID = 2500;
// TCHAR szProjectPath[_MAX_PATH] = PROJ_PATH;
memset(&Error, 0, sizeof(CMN_ERROR));
memset(&dmMembers, 0, sizeof(MCP_NEWVARIABLE_DATA_EX) * 4);
memset(&dmType, 0, sizeof(DM_TYPE_DESCRIPTOR));
dmType.dmTypeRef.dwType = 14; // STRUCTURE
dmType.dmTypeRef.dwSize = 0;
dmType.dmType.dmStruct.dwNumMembers = 4;
strcpy(dmMembers[0].szVarName, "Wlanger");
strcpy(dmMembers[1].szVarName, "Xlanger");
strcpy(dmMembers[2].szVarName, "Ylanger");
strcpy(dmMembers[3].szVarName, "Zlanger");
strcpy(dmType.dmTypeRef.szTypeName, "REG");
ret = MyDMGetConnectionState();
if(FALSE != ret)
{
MyDMEnumOpenedProjects(); // open the DM and set the g_szProjectFile
for (int i = 0; i < 4; i++)
{
// 1. - 3. tag in WinCC: float
if (i < 3)
{
dmMembers[i].Common.dwVarType = DM_VARTYPE_FLOAT;
dmMembers[i].Common.dwVarLength = sizeof(DM_VARTYPE_FLOAT);
dmMembers[i].Common.dwASOffset = i * 4 * 16; // in Bits!!
dmMembers[i].Limits.dSubstituteValue = (i + 1) * 2.5;
dmMembers[i].Limits.dTopLimit = (i + 1) * 7.5;
dmMembers[i].Limits.dBottomLimit = (i + 1) * 5.0;
}
else
{
// 4. tag in WinCC: WORD
dmMembers[i].Common.dwVarType = DM_VARTYPE_WORD;
dmMembers[i].Common.dwVarLength = sizeof(DM_VARTYPE_WORD);
dmMembers[i].Common.dwASOffset = i * 4 * 16;
}
// all tags are extern
dmMembers[i].Common.dwVarProperty = DM_EXTERNAL_VAR;
// formating ...
switch (i)
{
case 0:
{
dmMembers[i].Common.dwFormat = DM_VARTYPE_FLOAT * 0x01000000; // float
dmMembers[i].Common.dwFormat += 2079 * 0x010000; // double
dmMembers[i].Common.dwFormat += 7; // float <-> double
break;
}
case 1:
{
dmMembers[i].Common.dwFormat = DM_VARTYPE_FLOAT * 0x01000000; // float
dmMembers[i].Common.dwFormat += 2078 * 0x010000; // float
dmMembers[i].Common.dwFormat += 0; // no conversion
break;
}
case 2:
{
dmMembers[i].Common.dwFormat = DM_VARTYPE_FLOAT * 0x01000000; // float
dmMembers[i].Common.dwFormat += 2079 * 0x010000; // double
dmMembers[i].Common.dwFormat += 7; // float <-> double
break;
}
case 3:
{
dmMembers[i].Common.dwFormat = DM_VARTYPE_WORD * 0x01000000; // short
dmMembers[i].Common.dwFormat += 1029 * 0x010000; // SDWORD
dmMembers[i].Common.dwFormat += 5; // SDWORD <-> WORD
break;
}
default:
{
break;
}
} // end switch
} // end for
memset(&Error, 0,sizeof( CMN_ERROR));
ret = GAPICreateType(
/*szProjectPath*/g_szProjectFile,
&dmType, dwFlags,
dwCreID,
dmMembers,
&Error);
if(ret == FALSE )
{
sprintf(szText, "Error in GAPICreateType: E1= 0x%08lx ; E2= 0x%08lx ; %s",
Error.dwError1, Error.dwError2, Error.szErrorText);
}
else
{
sprintf(szText,"GAPICreateType: %d",ret);
}
ODKTrace(szText);
//printf("%s\r\n",szText);
}
}
//{{ODK_EXAMPLE}(END)}
2 个解决方案
#1
自己顶一下先，不要大神没来，已经沉了
#2
在顶一下，就大神帮帮忙啊
#1
自己顶一下先，不要大神没来，已经沉了
#2
在顶一下，就大神帮帮忙啊