一个动态连接库调用问题,如何在程序里调用使它返回字符串,如下动态连接库,如何设一个变量,使它影射data_buffer,这个变量是不是必须用pchar类型,我不知道该怎么写怎么用,谢谢各位给予回复!
Function srd_4442 (icdev:integer;offset:integer;le:integer; var data_buffer:pchar):integer;far; stdcall;external 'ftIC_32.dll';
我的程序代码如下:
var
data:pchar;st:=srd_4442(icdev,offset, le, Data); 然后取data的值时出错(project project2.exe raised exception class eaccessviolaton with message'access violaton at address 004046ab in module'project2.exe'.read of address 5affb600'.process stoped.use setp or run to continue我发现出错时是调用data变量时或调用的哪个函数走完时才提示,急需解决,在线等待
Function srd_4442 (icdev:integer;offset:integer;le:integer; var data_buffer:pchar):integer;far; stdcall;external 'ftIC_32.dll';
我的程序代码如下:
var
data:pchar;st:=srd_4442(icdev,offset, le, Data); 然后取data的值时出错(project project2.exe raised exception class eaccessviolaton with message'access violaton at address 004046ab in module'project2.exe'.read of address 5affb600'.process stoped.use setp or run to continue我发现出错时是调用data变量时或调用的哪个函数走完时才提示,急需解决,在线等待
否则 data_buffer: TMemoryStream;
或引用ShareMem单元,但Borlandmm.dll文件要一起分发!