我是这样写的试了一个简单的,我的操作系统是2003: library Project1;{ Important note about DLL memory management: ShareMem must be the first unit in your library's USES clause AND your project's (select Project-View Source) USES clause if your DLL exports any procedures or functions that pass strings as parameters or function results. This applies to all strings passed to and from your DLL--even those that are nested in records and classes. ShareMem is the interface unit to the BORLNDMM.DLL shared memory manager, which must be deployed along with your DLL. To avoid using BORLNDMM.DLL, pass string information using PChar or ShortString parameters. }uses SysUtils, Classes, Func in 'Func.pas';{$R *.res} Exports ShowMsg; begin end.unit Func;interfaceuses SysUtils, Classes, QDialogs; Procedure ShowMsg(str:String);StdCall; implementation Procedure ShowMsg(str:String); begin ShowMessage(Str); end;
library Project1;{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }uses
SysUtils,
Classes,
Func in 'Func.pas';{$R *.res}
Exports
ShowMsg;
begin
end.unit Func;interfaceuses
SysUtils,
Classes,
QDialogs;
Procedure ShowMsg(str:String);StdCall;
implementation
Procedure ShowMsg(str:String);
begin
ShowMessage(Str);
end;