0

I am develop an app Using RFID from this site in C#

Here and I was do it with one Reader it's work great but when i use two Reader in the Same PC and I Use MultiReader.dll with no change in the code it show error message

A call to PInvoke function 'GetSerial!GetSerial.uFRCoder1x::ReaderOpen' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.

What does this mean?

Falko
  • 17,076
  • 13
  • 60
  • 105
user1625664
  • 19
  • 1

1 Answers1

0

On Solution Explorer at References part you click on multiReader.DLL then press f4 or Get property on Properties window and change copy to local and Embed Introtype then build you project if the method have other signature , you can check by Go to definition or see on Object Explorer , also befor calling cast type and " ref " word when you call

and i suppose if you can reac COM port and serial for send and receive , you can use C# Component or tool by name " SerialPort" , it's useful

Harry Sarshogh
  • 2,137
  • 3
  • 25
  • 48