我有一个问题,一个程序在回调函数中崩溃了(这个程序是用 Delphi 6 编写的)。这个回调函数在其他地方使用时没有任何问题,在这个函数中最后一行是跟踪语句,也有输出。我在想是否是接口出了问题。以下是 C 头文件的摘录...
/*
#ifdef SSLCLIENT_EXPORTS
#define SSLCLIENT_API __declspec(dllexport)
#else
#define SSLCLIENT_API __declspec(dllimport)
#endif
*/
#define SSLCLIENT_API
#define CDR_EXPORT CALLBACK
typedef int CDRHANDLE;
// The definition of preceding call back functions is as follows:
#define CDR_PRORESS_CONTINUE 0
#define CDR_CANCEL_CONNECTION -1
#define CONNECTION_TERMINATED 1
#define CONNECTION_CLOSED 2
#ifdef __cplusplus
//extern "C" {
#endif
typedef int (CDR_EXPORT *RECEIVEINGFUNC )
(
char *callData,
void *applicationData
);
SSLCLIENT_API CDRHANDLE CDR_EXPORT CdrOpenConnection
(
char *IPAddressOrMachineName,
char *usernameOfCDRUserGroup,
char *password,
RECEIVEINGFUNC CDRRecord,
STOPFUNC CDRStop,
void *applicationData
);
#ifdef __cplusplus
//} // extern "C"
#endif
#endif
我使用DrBob的程序生成了一个Delphi源代码,它提供了...
type
RECEIVEINGFUNC = function(CallData: PChar; ApplicationData: Pointer): integer;
STOPFUNC = procedure(StopReason: integer; ApplicationData: Pointer);
(* = INT (CDR_EXPORT*RECEIVEINGFUNC ) ( CHAR*CALLDATA, VOID*APPLICATIONDATA );
type
= VOID (CDR_EXPORT*STOPFUNC ) ( INT STOPREASON, VOID*APPLICATIONDATA );
*)
var
CdrOpenConnection: function(IPAddressOrMachineName: PChar;
usernameOfCDRUserGroup: PChar;
password: PChar;
CDRRecord: RECEIVEINGFUNC;
CDRStop: STOPFUNC;
applicationData: Pointer): CDRHANDLE cdecl {$IFDEF WIN32} stdcall {$ENDIF};
我有一个函数。
function DoCdrRecord1(CallData: PChar; ApplicationData: Pointer): integer;
begin
try
// do stuff...
trace('DoCdrRecord1::back from _HndlCdrRec');
except
on e: exception do
begin
trace('DoCdrRecord1::exception -> ' + e.message);
end;
end
end;
我的问题是...
- 上面的Delphi声明看起来正确吗?
- 编译程序时是否应该包含WIN32?
我不知道程序出了什么问题。非常感谢任何帮助。