小编use*_*00a的帖子

我被赋予了在Visual Studio 2010 C#中使用pfxlibn.dll的任务,我从中可以看出它是一个Powerflex库.http://pfxcorp.com/clib-fns.htm

我尝试了一些导入PclGetField函数的变体,例如:

[DllImport("pfxlibn.dll", SetLastError = true)]
public static extern void PclGetField(
    Int32 iHandle, 
    Int32 iFieldNum, 
    [MarshalAs(UnmanagedType.LPStr)] string Date
    ); 

[DllImport("pfxlibn.dll",
    CallingConvention = CallingConvention.StdCall,
    CharSet = CharSet.Ansi,
    EntryPoint = "PclGetField")]
public static extern int PclGetField(Int32 iHandle, Int32 iFieldNum, string Data)

[DllImport("pfxlibn.dll", EntryPoint = "PclGetField",
    ExactSpelling = true,
    CharSet = CharSet.Ansi,
    CallingConvention = CallingConvention.Cdecl)]
public static extern Int32 PclGetField(Int32 iHandle, Int32 iFieldNum,[MarshalAs(UnmanagedType.VBByRefStr)] ref string input);

到目前为止,上述都没有奏效.或以上的变化.

在Delphi中,代码看起来像

pTmpBuf           : PChar;

iLastErr := PclGetField(fHandle,iField,pTmpBuf);