DELPHI function statement
The function Write_Guest_Card (ClientID: Longword; CardNo) : Integer; Stdcall; Far; External 'btlock73L. DLL';
Here ClientID: Longword
I used long in PB instead of the error invalid stack pointer on the return from the function call

I saw the Delphi code variable assignment is ClientID:=StrToInt64 (edtClientID. Text);
Pb as if no such function

Especially the pb do? Thank you?

CodePudding user response:

The upstairs friends longlong I had tried

CodePudding user response:

What do you call PB how statement?

CodePudding user response:

DELPHI

 Longword 0.. 4294967295 unsigned 32 - bit 

PB

 UnsignedLong or ULong 

32 - bit unsigned integers, from 0 to 4294967295. 

CodePudding user response:

reference 4 floor yyoinge response:

DELPHI

Delphi (Pascal) code
Longword 0.. 4294967295 unsigned 32 - bit


PB

SQL code
UnsignedLong or ULong

32 - bit unsigned integers, from 0 to 4294967295.

Top a

LZ see

CodePudding user response:

You are using the API, I can't change the debugged,