Delphi生成即调用带窗体的Dll
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library frmDll; { 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, Forms, FormDll in ‘FormDll.pas‘ {Form1}; {$R *.res} function GetDllForm:TForm;stdcall;export;//定义导出方法; begin result:=Form1; //函数返回类型为一个窗体; end; exports GetDllForm;//声明可导出的方法; begin end. unit FormDll; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) btn1: TButton; procedure btn1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} procedure TForm1.btn1Click(Sender: TObject); begin MessageDlg(‘你已经成功调用了Dll控件‘,mtinformation,[mbOK],0); end; initialization //在单元中放在文件结尾前,包含用来初始化单元的代码,它在主程序运行前运行并且只运行一次 begin Form1:=TForm1.Create(Application); end; finalization//在单元中放在 initialization 和 end. 之间,包含了单元退出时的代码。程序退出时运行并且只运行一次。 begin Form1.Free; end; end. unit testdll; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) btn1: TButton; procedure btn1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; //function GetDllForm:TForm; implementation {$R *.dfm} function GetDllForm:TForm;external ‘frmDll.dll‘; //声明从函数frmDll.dll中调用函数 procedure TForm1.btn1Click(Sender: TObject); var AForm:TForm; begin AForm:=GetDllForm; AForm.Show; end; end.
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