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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls, ComCtrls, ToolWin,
Buttons, IdBaseComponent, IdComponent,
IdTCPConnection, IdTCPClient, IdHTTP, jpeg;
type
TForm1 = class(TForm)
IdHTTP1: TIdHTTP;
SpeedButton1: TSpeedButton;
SpeedButton2: TSpeedButton;
Image1: TImage;
procedure IdHTTP1WorkBegin(ASender: TObject; AWorkMode: TWorkMode;
AWorkCountMax: Int64);
procedure SpeedButton1Click(Sender: TObject);
procedure IdHTTP1Work(ASender: TObject; AWorkMode: TWorkMode;
AWorkCount: Int64);
procedure SpeedButton2Click(Sender: TObject);
procedure IdHTTP1WorkEnd(ASender: TObject; AWorkMode: TWorkMode);
private
{ Déclarations privées }
Inwork:Boolean;
strem:TMemoryStream;
public
{ Déclarations publiques }
end;
var
Form1: TForm1;
implementation
uses Registry,ShellApi;
{$R *.dfm}
procedure TForm1.FormDestroy(Sender: TObject);
begin
sleep(1);
if assigned(strem) then strem.free;
end;
procedure TForm1.IdHTTP1Work(ASender: TObject; AWorkMode: TWorkMode;
AWorkCount: Int64);
var
Temp:array[0..$FFFF] of byte;
i,j,n:integer;
s:AnsiString;
m,mm:array[1..$100] of byte;
Jpeg: TJpegImage;
z:byte;
begin
j:=strem.Size;
{ --myboundary
Content-Type: image/jpeg
Content-Length: 30754
}
strem.Position:=0;
n:=strem.Read(Temp[0],j);
strem.Position:=0;
s:='Length:';
i:=1;
if n>0 then
repeat
// strem.WriteBuffer(z,1);
while (i<j) and (temp[i]<>ord('L')) do inc(i);
if (i<j) then
begin
CopyMemory(@m[1],@temp[i],7);
if CompareMem(@s[1],@m[1],7) then
begin
i:=i+7;
inc(i);n:=i;
while (i<j) and (temp[i]<>13) do inc(i);
if i<j then
begin
setlength(s,i-n);
CopyMemory(@s[1],@temp[n],i-n);
try
n:=strtoint(s);
except
n:=0
end;
// ShowMessage(s);
end;
Panel1.Caption:=inttostr(n);
Application.ProcessMessages;
if n>28000 then
begin
inc(i,4);
strem.Position:=i;
Jpeg := TJpegImage.Create;
try
Jpeg.LoadFromStream(strem);
//copie de l'image du jpeg dans un bitmap
Image1.Picture.Assign(Jpeg);
strem.Clear;
finally
Jpeg.Free;
end;
end;
break;
end;
end;
inc(i);
Application.ProcessMessages;
until (i>=j);
// Inwork:=false;
if not Inwork then IdHTTP1.IOHandler.CloseGracefully;
end;
procedure TForm1.IdHTTP1WorkBegin(ASender: TObject; AWorkMode: TWorkMode;
AWorkCountMax: Int64);
begin
Inwork:=True;
end;
procedure TForm1.IdHTTP1WorkEnd(ASender: TObject; AWorkMode: TWorkMode);
begin
Panel7.Caption:=inttostr(strem.Size);
strem.Position:=0;
end;
procedure TForm1.SpeedButton1Click(Sender: TObject);
begin
Inwork:=False;
end;
procedure TForm1.SpeedButton2Click(Sender: TObject);
begin
strem:=TMemoryStream.Create; // http://216.62.222.100/view/index.shtml
IdHTTP1.Get('http://webcam.aui.ma/axis-cgi/mjpg/video.cgi?833511636',strem);
end;
end. |
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