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騎自行車的正確
在校大學生該如
微信朋友圈怎么interface
uses
Windows, Graphics, ExtCtrls, Controls, StdCtrls, Buttons, Tabs,
ComCtrls, Classes, SysUtils, Forms, dialogs,
TrafficUnit, IPHelper, IPHLPAPI, ShellAPI;
type
TMainForm = class(TForm)
pnlMain: TPanel;
pnlBottom: TPanel;
pc: TPageControl;
tsAbout: TTabSheet;
tsTraffic: TTabSheet;
ExitButton: TButton;
TrafficTabs: TTabSet;
GroupBox: TGroupBox;
ledAdapterDescription: TLabeledEdit;
UnFreezeButton: TBitBtn;
FreezeButton: TBitBtn;
ClearCountersButton: TBitBtn;
ledMACAddress: TLabeledEdit;
gbIN: TGroupBox;
ledOctInSec: TLabeledEdit;
ledAvgINSec: TLabeledEdit;
ledPeakINSec: TLabeledEdit;
ledTotalIN: TLabeledEdit;
gbOUT: TGroupBox;
ledOctOUTSec: TLabeledEdit;
ledAvgOUTSec: TLabeledEdit;
ledPeakOUTSec: TLabeledEdit;
ledTotalOUT: TLabeledEdit;
Timer: TTimer;
gbTime: TGroupBox;
ledStartedAt: TLabeledEdit;
ledActiveFor: TLabeledEdit;
RemoveInactiveButton: TBitBtn;
StatusText: TStaticText;
cbOnTop: TCheckBox;
Panel3: TPanel;
ProductName: TLabel;
lblURL: TLabel;
Label3: TLabel;
ProgramIcon: TImage;
StaticText1: TStaticText;
ledSpeed: TLabeledEdit;
procedure TimerTimer(Sender: TObject);
procedure ClearCountersButtonClick(Sender: TObject);
procedure cbOnTopClick(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure TrafficTabsChange(Sender: TObject; NewTab: Integer;
var AllowChange: Boolean);
procedure ExitButtonClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FreezeButtonClick(Sender: TObject);
procedure UnFreezeButtonClick(Sender: TObject);
procedure RemoveInactiveButtonClick(Sender: TObject);
procedure lblURLClick(Sender: TObject);
procedure StaticText1Click(Sender: TObject);
procedure pcChange(Sender: TObject);
procedure ledAdapterDescriptionChange(Sender: TObject);
private
procedure HandleNewAdapter(ATraffic : TTraffic);
procedure HandleFreeze(ATraffic : TTraffic);
procedure HandleUnFreeze(ATraffic : TTraffic);
function LocateTraffic(AdapterIndex : DWord) : TTraffic;
procedure ProcessMIBData;
procedure ClearDisplay;
procedure RefreshDisplay;
public
{ Public declarations }
end;
var
MainForm: TMainForm;
ActiveTraffic : TTraffic;
implementation
{$R *.dfm}
procedure TMainForm.ClearDisplay;
var
j:integer;
begin
TrafficTabs.Tabs.Clear;
StatusText.Caption:='';
for j:= 0 to GroupBox.ControlCount-1 do
begin
if GroupBox.Controls[j] is TCustomEdit then
TCustomEdit(GroupBox.Controls[j]).Text := '';
end;
end; (*ClearDisplay*)
procedure TMainForm.TimerTimer(Sender: TObject);
begin
Timer.Enabled := False;
ProcessMIBData;
Timer.Enabled := True;
end; (*TimerTimer*)
procedure TMainForm.ClearCountersButtonClick(Sender: TObject);
begin
ActiveTraffic.Reset;
RefreshDisplay;
end;
procedure TMainForm.cbOnTopClick(Sender: TObject);
begin
if cbOnTop.Checked = true then
FormStyle := fsSTAYONTOP
else
FormStyle := fsNORMAL;
end;
procedure TMainForm.FormDestroy(Sender: TObject);
var
i : integer;
begin
Timer.OnTimer := nil;
ActiveTraffic := nil;
for i:= 0 to -1 + TrafficTabs.Tabs.Count do
TrafficTabs.Tabs.Objects[i].Free;
end;
procedure TMainForm.TrafficTabsChange(Sender: TObject; NewTab: Integer; var AllowChange: Boolean);
begin
if NewTab = -1 then
ActiveTraffic := nil
else
ActiveTraffic := TTraffic(TrafficTabs.Tabs.Objects[NewTab]);
RefreshDisplay;
end;
procedure TMainForm.ExitButtonClick(Sender: TObject);
begin
Close;
end;
procedure TMainForm.FormCreate(Sender: TObject);
begin
//do NOT change
Timer.Interval := 1000; // all calculatoins on 1 sec.
//remove design time testing data
ClearDisplay;
ActiveTraffic := nil;
pcChange(Sender);
Timer.Enabled := True;
end;
procedure TMainForm.RefreshDisplay;
begin
if not Assigned(ActiveTraffic) then
begin
ClearDisplay;
Exit;
end;
with ActiveTraffic do
begin
FreezeButton.Visible := Connected;
UnFreezeButton.Visible := Connected;
ClearCountersButton.Visible := Connected;
RemoveInactiveButton.Visible := not Connected;
FreezeButton.Enabled := Running;
UnFreezeButton.Enabled := not Running;
ledAdapterDescription.Text := Description;
ledMACAddress.Text := MAC;
ledSpeed.Text := BitsToFriendlyString(Speed);
ledOctInSec.Text := BytesToFriendlyString(InPerSec);
ledPeakInSec.Text := BytesToFriendlyString(PeakInPerSec);
ledAvgINSec.Text := BytesToFriendlyString(AverageInPerSec);
ledTotalIN.Text := BytesToFriendlyString(InTotal);
ledOctOUTSec.Text := BytesToFriendlyString(OutPerSec);
ledPeakOUTSec.Text := BytesToFriendlyString(PeakOutPerSec);
ledAvgOUTSec.Text := BytesToFriendlyString(AverageOutPerSec);
ledTotalOUT.Text := BytesToFriendlyString(OutTotal);
self.ledStartedAt.Text := DateTimeToStr(StartedAt);
self.ledActiveFor.Text := FriendlyRunningTime;
StatusText.Caption := GetStatus;
end;//with
end; (*RefreshDisplay*)
procedure TMainForm.ProcessMIBData;
var
MibArr : IpHlpAPI.TMIBIfArray;
i : integer;
ATraffic : TTraffic;
begin
Get_IfTableMIB(MibArr); // get current MIB data
//Mark not Found as NOT Connected
for i:= 0 to -1 + TrafficTabs.Tabs.Count do
begin
ATraffic := TTraffic(TrafficTabs.Tabs.Objects[i]);
if ATraffic.Connected then ATraffic.Found := False;
end;
// ATraffic := nil;
//process
if Length(MibArr) > 0 then
begin
for i := Low(MIBArr) to High(MIBArr) do
begin
ATraffic := LocateTraffic(MIBArr[i].dwIndex);
if Assigned(ATraffic) then
begin
//already connected
ATraffic.NewCycle(MIBArr[i].dwInOctets, MIBArr[i].dwOutOctets, MIBArr[i].dwSpeed);
end
else
begin
//New one!
ATraffic := TTraffic.Create(MIBArr[i], HandleNewAdapter);
ATraffic.Found := True;
ATraffic.OnFreeze := HandleFreeze;
ATraffic.OnUnFreeze := HandleUnFreeze;
end;
end;
end;
//Mark not Found as Inactive
for i:= 0 to -1 + TrafficTabs.Tabs.Count do
if NOT TTraffic(TrafficTabs.Tabs.Objects[i]).Found then
TTraffic(TrafficTabs.Tabs.Objects[i]).MarkDisconnected;
RefreshDisplay;
end; (*ProcessMIBData*)
function TMainForm.LocateTraffic(AdapterIndex : DWord): TTraffic;
var
j : cardinal;
ATraffic : TTraffic;
begin
Result := nil;
if TrafficTabs.Tabs.Count = 0 then Exit;
for j:= 0 to -1 + TrafficTabs.Tabs.Count do
begin
ATraffic := TTraffic(TrafficTabs.Tabs.Objects[j]);
if ATraffic.InterfaceIndex = AdapterIndex then
begin
Result := ATraffic;
Result.Found := True;
Break;
end;
end;
end; (*LocateAdapter*)
procedure TMainForm.HandleNewAdapter(ATraffic: TTraffic);
begin
//add adapter
TrafficTabs.Tabs.AddObject(ATraffic.IP, ATraffic);
//select it
TrafficTabs.TabIndex := -1 + TrafficTabs.Tabs.Count;
end; (*HandleNewAdapter*)
procedure TMainForm.FreezeButtonClick(Sender: TObject);
begin
ActiveTraffic.Freeze;
end;
procedure TMainForm.UnFreezeButtonClick(Sender: TObject);
begin
ActiveTraffic.UnFreeze;
end;
procedure TMainForm.HandleFreeze(ATraffic: TTraffic);
begin
self.FreezeButton.Enabled := ATraffic.Running;
self.UnFreezeButton.Enabled := not ATraffic.Running;
end;
procedure TMainForm.HandleUnFreeze(ATraffic: TTraffic);
begin
self.FreezeButton.Enabled := ATraffic.Running;
self.UnFreezeButton.Enabled := not ATraffic.Running;
end;
procedure TMainForm.RemoveInactiveButtonClick(Sender: TObject);
begin
If not ActiveTraffic.Connected then //just checking
begin
ActiveTraffic.Free;
ActiveTraffic := nil;
TrafficTabs.Tabs.Delete(TrafficTabs.TabIndex);
TrafficTabs.SelectNext(False);
end;
RefreshDisplay;
end; (*RemoveInactiveButtonClick*)
procedure TMainForm.lblURLClick(Sender: TObject);
begin
ShellExecute(Handle, 'open','',nil,nil,SW_SHOWNORMAL);
end;
procedure TMainForm.StaticText1Click(Sender: TObject);
begin
ShellExecute(Handle, 'open','mailto:',nil,nil,SW_SHOWNORMAL);
end;
procedure TMainForm.pcChange(Sender: TObject);
begin
pnlBottom.Visible := pc.ActivePage = tsTraffic;
end;
procedure TMainForm.ledAdapterDescriptionChange(Sender: TObject);
begin
//testing - not working since GroupBox is disabled
ledAdapterDescription.Hint := ledAdapterDescription.Text;
ledAdapterDescription.ShowHint := Canvas.TextWidth(ledAdapterDescription.Text) > ledAdapterDescription.ClientWidth;
end;
end.