Hi @all,
ih habe ein Problem beim laden einer
dll. nachfolgend erstmal den quelltext der
dll und des projectes:
Delphi-Quellcode:
unit main;
interface
uses
sharemem,Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ComCtrls, StdCtrls, extctrls;
type
Tfmmain =
class(TForm)
PageControl1: TPageControl;
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
TShow_DLLForm =
procedure;
stdcall;
var
fmmain: Tfmmain;
Show_DLLForm: TShow_DLLForm;
implementation
{$R *.dfm}
procedure Tfmmain.Button1Click(Sender: TObject);
var
dllhandle: Thandle;
begin
dllhandle := 0;
try
dllhandle := LoadLibrary('
Project1.dll');
@Show_DLLForm := GetProcAddress(dllhandle,'
startdll');
if @Show_DLLForm <>
nil then
Show_DLLForm;
finally
FreeLibrary(dllhandle);
showmessage('
fertsch');
end;
end;
end.
Delphi-Quellcode:
library Project1;
{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }
uses
sharemem,
SysUtils,
Classes,
dialogs,
comctrls,
main
in '
main.pas';
{$R *.res}
procedure startdll;
begin
fmmain.Button1.Caption := '
test';
end;
begin
end.
mein problem ist nun, dass ich die
dll lade, aber die procedure Show_DLLForm nil ist und somit nicht ausgeführt wird. wo liegt der fehler? Habe leider bis jetzt keine Erfahrungen mit
Dll's