[DllImport("RWManager.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi, EntryPoint = "ReadBase", SetLastError = true)]
public static extern int dll_ReadBase(StringBuilder pInput, StringBuilder pOutput);
public int ReadTest()
{
StringBuilder pInput = new StringBuilder();
pInput.Append("@0000=1@0002=mw@0010=LogIC@000B=2@000H=1@");
StringBuilder pOutput = new StringBuilder();
pOutput.Length = 256;
pOutput.Capacity = 512;
int flag = dll_ReadBase(pInput, pOutput);
MessageBox.Show(flag.ToString());
return flag;
}
RWManager.dll是读卡器厂家提供的动态库,是用delphi 写的,dll 中的ReadBase方法要求传入的是pchar值,在网上查资料,C#调用的时候传入StringBuilder,程序在调试模式,能正常读卡,单独执行exe,却读卡异常!很奇葩的问题,有没有大神遇到过相同的问题,求指导!!!