如果我單擊窗體右上角的X,程序將保持運行狀態。這也發生在Delphi 4中,然後我不得不執行程序重置,因爲如果我不這樣做,它將不會重新編譯。 主要形式代碼:程序在退出後保持運行
unit Unit3;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, ExtCtrls;
type
TMainForm = class(TForm)
NewButton: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
ExitButton: TButton;
LockButton: TButton;
SettingsButton: TButton;
Label1: TLabel;
TimeLabel: TLabel;
Timer1: TTimer;
procedure ExitButtonClick(Sender: TObject);
procedure LockButtonClick(Sender: TObject);
procedure SettingsButtonClick(Sender: TObject);
procedure Timer1Timer(Sender: TObject);
procedure NewButtonClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
MainForm: TMainForm;
implementation
uses Unit2, Unit1, Unit4;
{$R *.DFM}
procedure TMainForm.ExitButtonClick(Sender: TObject);
begin
if MessageBox(0, 'Are you sure you want to quit?', 'Exit Program?', +mb_YesNo +mb_ICONWARNING) = 6 then
Application.Terminate
else
end;
procedure TMainForm.LockButtonClick(Sender: TObject);
begin
MainForm.Hide;
Login.Show;
Login.LockLabel.Visible := true;
end;
procedure TMainForm.SettingsButtonClick(Sender: TObject);
begin
MainForm.Hide;
Settings.Show;
end;
procedure TMainForm.Timer1Timer(Sender: TObject);
begin
TimeLabel.Caption := TimeToStr(time);
end;
procedure TMainForm.NewButtonClick(Sender: TObject);
begin
TransForm.Show;
MainForm.Hide;
end;
end.
登錄表單代碼:
unit Unit2;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, Mask, inifiles, Unit1;
type
TLogin = class(TForm)
PassEdit: TMaskEdit;
LoginButton: TButton;
PassLabel: TLabel;
InvisiButton: TButton;
LockLabel: TLabel;
procedure PassEditClick(Sender: TObject);
procedure LoginButtonClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Login: TLogin;
IniFile : TIniFile;
appINI : TIniFile;
Password : string;
implementation
uses Unit3;
{$R *.DFM}
procedure TLogin.PassEditClick(Sender: TObject);
begin
PassEdit.Text := '';
end;
procedure TLogin.LoginButtonClick(Sender: TObject);
begin
if Password = PassEdit.Text then begin
Login.Hide;
MainForm.Show;
LockLabel.Visible := false;
end
else
showmessage('Incorrect Password!')
end;
procedure TLogin.FormCreate(Sender: TObject);
begin
appINI := TIniFile.Create(ChangeFileExt(Application.ExeName,'.ini'));
Password := appINI.ReadString('Login','Password','');
appINI.Free;
end;
end.
設置表單代碼
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, inifiles;
type
TSettings = class(TForm)
SaveButton: TButton;
AEditA: TEdit;
AEditB: TEdit;
SEditB: TEdit;
PEditB: TEdit;
PLabelA: TLabel;
SLabelA: TLabel;
ALabelA: TLabel;
PEditA: TEdit;
SEditA: TEdit;
BackButton: TButton;
SettingsLabel: TLabel;
ALabelB: TLabel;
SLabelB: TLabel;
PLabelB: TLabel;
AReserveLabel: TLabel;
BReserveLabel: TLabel;
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Label4: TLabel;
Label5: TLabel;
Label6: TLabel;
Label8: TLabel;
Label7: TLabel;
procedure SaveButtonClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure BackButtonClick(Sender: TObject);
procedure AEditAKeyPress(Sender: TObject; var Key: Char);
procedure AEditBKeyPress(Sender: TObject; var Key: Char);
procedure SEditAKeyPress(Sender: TObject; var Key: Char);
procedure SEditBKeyPress(Sender: TObject; var Key: Char);
procedure PEditAKeyPress(Sender: TObject; var Key: Char);
procedure PEditBKeyPress(Sender: TObject; var Key: Char);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Settings: TSettings;
IniFile : TIniFile;
appINI : TIniFile;
APriceA : String;
SPriceA : String;
PPriceA : String;
APriceB : String;
SPriceB : String;
PPriceB : String;
change : boolean;
implementation
uses Unit3, Unit2;
{$R *.DFM}
procedure TSettings.SaveButtonClick(Sender: TObject);
//Save Button
begin
appINI := TIniFile.Create(ChangeFileExt(Application.ExeName,'.ini'));
APriceA := (AEditA.Text);
SPriceA := (SEditA.Text);
PPriceA := (PEditA.Text);
APriceB := (AEditB.Text);
SPriceB := (SEditB.Text);
PPriceB := (PEditB.Text);
appINI.WriteString('PricesA','Adult',APriceA);
appINI.WriteString('PricesA','Student',SPriceA);
appINI.WriteString('PricesA','Pensioner',PPriceA);
appINI.WriteString('PricesB','Adult',APriceB);
appINI.WriteString('PricesB','Student',SPriceB);
appINI.WriteString('PricesB','Pensioner',PPriceB);
appINI.Free;
ShowMessage('Settings Saved Successfully!');
change := false;
end;
procedure TSettings.FormCreate(Sender: TObject);
//Displays values as the form is created
begin
appINI := TIniFile.Create(ChangeFileExt(Application.ExeName,'.ini'));
APriceA := appINI.ReadString('PricesA','Adult','');
SPriceA := appINI.ReadString('PricesA','Student','');
PPriceA := appINI.ReadString('PricesA','Pensioner','');
APriceB := appINI.ReadString('PricesB','Adult','');
SPriceB := appINI.ReadString('PricesB','Student','');
PPriceB := appINI.ReadString('PricesB','Pensioner','');
appINI.Free;
AEditA.Text := (APriceA);
SEditA.Text := (SPriceA);
PEditA.Text := (PPriceA);
AEditB.Text := (APriceB);
SEditB.Text := (SPriceB);
PEditB.Text := (PPriceB);
end;
procedure TSettings.BackButtonClick(Sender: TObject);
//Exit Button
begin
if MessageBox(0, 'Are you sure you want to quit?', 'Exit Program?', +mb_YesNo +mb_ICONWARNING) = 6 then begin
if Change = (true) then
begin
if MessageBox(0, 'Save Changes?', 'Save Changes?', +mb_YesNo +mb_ICONWARNING) = 6 then
begin
appINI := TIniFile.Create(ChangeFileExt(Application.ExeName,'.ini'));
APriceA := (AEditA.Text);
SPriceA := (SEditA.Text);
PPriceA := (PEditA.Text);
APriceB := (AEditB.Text);
SPriceB := (SEditB.Text);
PPriceB := (PEditB.Text);
appINI.WriteString('PricesA','Adult',APriceA);
appINI.WriteString('PricesA','Student',SPriceA);
appINI.WriteString('PricesA','Pensioner',PPriceA);
appINI.WriteString('PricesB','Adult',APriceB);
appINI.WriteString('PricesB','Student',SPriceB);
appINI.WriteString('PricesB','Pensioner',PPriceB);
appINI.Free;
ShowMessage('Settings Saved Successfully!');
Settings.Hide;
MainForm.Show;
change := false;
end
else
change := false;
MainForm.Show;
Settings.Hide;
end
else
MainForm.Show;
Settings.Hide;
end
else
end;
procedure TSettings.AEditAKeyPress(Sender: TObject; var Key: Char);
var s:string;
begin
change := true;
s := ('1234567890.'#8); //Add chars you want to allow
if pos(key,s) =0 then begin
Key:=#0;
showmessage('Only Numbers are allowed. Include cents!');
end;
end;
procedure TSettings.AEditBKeyPress(Sender: TObject; var Key: Char);
var s:string;
begin
change := true;
s := ('1234567890.'#8); //Add chars you want to allow
if pos(key,s) =0 then begin
Key:=#0;
showmessage('Only Numbers are allowed. Include cents!');
end;
end;
procedure TSettings.SEditAKeyPress(Sender: TObject; var Key: Char);
var s:string;
begin
change := true;
s := ('1234567890.'#8); //Add chars you want to allow
if pos(key,s) =0 then begin
Key:=#0;
showmessage('Only Numbers are allowed. Include cents!');
end;
end;
procedure TSettings.SEditBKeyPress(Sender: TObject; var Key: Char);
var s:string;
begin
change := true;
s := ('1234567890.'#8); //Add chars you want to allow
if pos(key,s) =0 then begin
Key:=#0;
showmessage('Only Numbers are allowed. Include cents!');
end;
end;
procedure TSettings.PEditAKeyPress(Sender: TObject; var Key: Char);
var s:string;
begin
change := true;
s := ('1234567890.'#8); //Add chars you want to allow
if pos(key,s) =0 then begin
Key:=#0;
showmessage('Only Numbers are allowed. Include cents!');
end;
end;
procedure TSettings.PEditBKeyPress(Sender: TObject; var Key: Char);
var s:string;
begin
change := true;
s := ('1234567890.'#8); //Add chars you want to allow
if pos(key,s) =0 then begin
Key:=#0;
showmessage('Only Numbers are allowed. Include cents!');
end;
end;
//End of Settings
procedure TSettings.Button1Click(Sender: TObject);
begin
Settings.hide;
end;
end.
項目數據:
program Project1;
uses
Forms,
Unit1 in 'Unit1.pas' {Settings},
Unit2 in 'Unit2.pas' {Login},
Unit3 in 'Unit3.pas' {MainForm},
Unit4 in '..\Write to ini\Unit4.pas' {TransForm};
{$R *.RES}
begin
Application.Initialize;
Application.CreateForm(TLogin, Login);
Application.CreateForm(TMainForm, MainForm);
Application.CreateForm(TSettings, Settings);
Application.Run;
end.
當我關閉應用IT方面運行,你能幫我解決這個問題嗎?
登錄表單下旨是主要的你的應用程序的形式。因爲這是通過調用Application.CreateForm創建的第一個。當主窗體關閉時,應用程序關閉。從來沒有發生過。只爲您的主表單使用CreateForm。或者致電Login.Close終止您的應用程序。 – 2012-08-02 23:42:47
@大衛:我之前說過[這裏](http://stackoverflow.com/a/11751291/62576),但顯然馬特沒有閱讀答案。儘管如此,我將重複它作爲後代:使用Application.CreateForm創建的第一個表單被認爲是應用程序的主要表單**,並且當該表單關閉時,應用程序將關閉。如果Matt提出這樣一個問題,比如「我有一個TLoginForm,我希望在我的主表單之前顯示,並且如果他們輸入了正確的信息,允許我的應用程序運行;如果沒有,我希望我的應用程序終止,我該怎麼做?「 – 2012-08-03 02:50:02