请问要用delphi实现向服务器端发送特定tcp\ip数据包该如何实现呢? 目前我还是一点头绪也没有阿请各位多指教阿!!谢谢啦! 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 ???如果你知道服务器的IP和Port,用TTcpClient控件连接,SendBuf不就可以吗? 楼上说得对,你只要用TTcpClient和TTcpServer控件就行了,然后再填上相就的参数就行了! 恩,怎么说呢?先看下面这段tcp\ip包数据部分:01 00 00 2a 00 00 e1 00 e1 00 43 1f 01 00 02 00 01 00 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 30 30 30 30 30 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7c 01然后我要用delphi写一个程序(模仿其本来的客户端)来发送一样的数据包给服务器如果数据包不一样,服务器不会有响应。那么该如何写程序呢?还有就是:注意看一下以上数据会发现只有40个字节是有意义的,那么其他的是怎么产生的呢,有什么用呢?郁闷阿! 我以前没有接触过这方面的问题,请原谅我的无知把你的东西定义为一个结构:type TMyPack = packed record ushOrgMachineID : WORD; ushOrgCommPort : WORD; ... ushCheckSum : array of char; xmlcontent : array of BYTE; end;用sendbuf发出去不就完了? 哦,错了,直接用SendBuf发送数据部分即可,不需要定义结构 unit Unit1;interfaceusesWindows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,StdCtrls, OleCtrls, Registry;ConstSrcIP = '123.123.123.1';//发送方IP地址SrcPort = 1234; //发送方端口DestIP = '127.0.0.2'; //目的IP地址DestPort = 4321; //目的端口Max_Message = 4068;Max_Packet = 4096;typeTPacketBuffer = Array[0..Max_Packet-1] of byte;TForm1 = class(TForm)Button1: TButton;Memo1: TMemo;procedure Button1Click(Sender: TObject);private{ Private declarations }public{ Public declarations }procedure SendIt;end;// IP 头typeT_IP_Header = recordip_verlen : Byte;ip_tos : Byte;ip_totallength : Word;ip_id : Word;ip_offset : Word;ip_ttl : Byte;ip_protocol : Byte;ip_checksum : Word;ip_srcaddr : LongWord;ip_destaddr : LongWord;end;// UDP 头TypeT_UDP_Header = recordsrc_portno : Word;dst_portno : Word;udp_length : Word;udp_checksum : Word;end;// 一些 Winsock 2 的类型声明u_char = Char;u_short = Word;u_int = Integer;u_long = Longint;SunB = packed records_b1, s_b2, s_b3, s_b4: u_char;end;SunW = packed records_w1, s_w2: u_short;end;in_addr = recordcase integer of0: (S_un_b: SunB);1: (S_un_w: SunW);2: (S_addr: u_long);end;TInAddr = in_addr;Sockaddr_in = recordcase Integer of0: (sin_family: u_short;sin_port: u_short;sin_addr: TInAddr;sin_zero: array[0..7] of Char);1: (sa_family: u_short;sa_data: array[0..13] of Char)end;TSockAddr = Sockaddr_in;TSocket = u_int;constWSADESCRIPTION_LEN = 256;WSASYS_STATUS_LEN = 128;typePWSAData = ^TWSAData;WSAData = record // WSDATAwVersion: Word;wHighVersion: Word;szDescription: array[0..WSADESCRIPTION_LEN] of Char;szSystemStatus: array[0..WSASYS_STATUS_LEN] of Char;iMaxSockets: Word;iMaxUdpDg: Word;lpVendorInfo: PChar;end;TWSAData = WSAData;//定义一些 winsock 2 函数function closesocket(s: TSocket): Integer; stdcall;function socket(af, Struct, protocol: Integer): TSocket; stdcall;function sendto(s: TSocket; var Buf; len, flags: Integer; var addrto: TSockAddr;tolen: Integer): Integer; stdcall;{}function setsockopt(s: TSocket; level, optname: Integer; optval: PChar;optlen: Integer): Integer; stdcall;function inet_addr(cp: PChar): u_long; stdcall; {PInAddr;} { TInAddr }function htons(hostshort: u_short): u_short; stdcall;function WSAGetLastError: Integer; stdcall;function WSAStartup(wVersionRequired: word; var WSData: TWSAData): Integer; stdcall;function WSACleanup: Integer; stdcall;constAF_INET = 2; // internetwork: UDP, TCP, etc.IP_HDRINCL = 2; // IP Header IncludeSOCK_RAW = 3; // raw-protocol interfaceIPPROTO_IP = 0; // dummy for IPIPPROTO_TCP = 6; // tcpIPPROTO_UDP = 17; // user datagram protocolIPPROTO_RAW = 255; // raw IP packetINVALID_SOCKET = TSocket(NOT(0));SOCKET_ERROR = -1;varForm1: TForm1;implementation// Import Winsock 2 functionsconst WinSocket = 'WS2_32.DLL';function closesocket; external winsocket name 'closesocket';function socket; external winsocket name 'socket';function sendto; external winsocket name 'sendto';function setsockopt; external winsocket name 'setsockopt';function inet_addr; external winsocket name 'inet_addr';function htons; external winsocket name 'htons';function WSAGetLastError; external winsocket name 'WSAGetLastError';function WSAStartup; external winsocket name 'WSAStartup';function WSACleanup; external winsocket name 'WSACleanup';{$R *.DFM}function CheckSum(Var Buffer; Size : integer) : Word;typeTWordArray = Array[0..1] of Word;varChkSum : LongWord;i : Integer;beginChkSum := 0;i := 0;While Size > 1 do beginChkSum := ChkSum + TWordArray(Buffer)[i];inc(i);Size := Size - SizeOf(Word);end;if Size=1 then ChkSum := ChkSum + Byte(TWordArray(Buffer)[i]);ChkSum := (ChkSum shr 16) + (ChkSum and $FFFF);ChkSum := ChkSum + (Chksum shr 16);Result := Word(ChkSum);end;procedure BuildHeaders(FromIP : String;iFromPort : Word;ToIP : String;iToPort : Word;StrMessage : String;Var Buf : TPacketBuffer;Var remote : TSockAddr;Var iTotalSize : Word);VardwFromIP : LongWord;dwToIP : LongWord;iIPVersion : Word;iIPSize : Word;ipHdr : T_IP_Header;udpHdr : T_UDP_Header;iUdpSize : Word;iUdpChecksumSize : Word;cksum : Word;Ptr : ^Byte;procedure IncPtr(Value : Integer);beginptr := pointer(integer(ptr) + Value);end;begin// Convert ip address'ssdwFromIP := inet_Addr(PChar(FromIP));dwToIP := inet_Addr(PChar(ToIP));// 初始化 IP 头//iTotalSize := sizeof(ipHdr) + sizeof(udpHdr) + length(strMessage);iIPVersion := 4;iIPSize := sizeof(ipHdr) div sizeof(LongWord);ipHdr.ip_verlen := (iIPVersion shl 4) or iIPSize;ipHdr.ip_tos := 0; // IP type of serviceipHdr.ip_totallength := htons(iTotalSize); // Total packet lenipHdr.ip_id := 0; // Unique identifier: set to 0ipHdr.ip_offset := 0; // Fragment offset fieldipHdr.ip_ttl := 128; // Time to liveipHdr.ip_protocol := $11; // Protocol(UDP)ipHdr.ip_checksum := 0 ; // IP checksumipHdr.ip_srcaddr := dwFromIP; // Source addressipHdr.ip_destaddr := dwToIP; // Destination address //// 初始化 UDP 头//iUdpSize := sizeof(udpHdr) + length(strMessage);udpHdr.src_portno := htons(iFromPort) ;udpHdr.dst_portno := htons(iToPort) ;udpHdr.udp_length := htons(iUdpSize) ;udpHdr.udp_checksum := 0 ;iUdpChecksumSize := 0;ptr := @buf[0];FillChar(Buf, SizeOf(Buf), 0);Move(ipHdr.ip_srcaddr, ptr^, SizeOf(ipHdr.ip_srcaddr));IncPtr(SizeOf(ipHdr.ip_srcaddr));iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_srcaddr);Move(ipHdr.ip_destaddr, ptr^, SizeOf(ipHdr.ip_destaddr));IncPtr(SizeOf(ipHdr.ip_destaddr));iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_destaddr);IncPtr(1);Inc(iUdpChecksumSize);Move(ipHdr.ip_protocol, ptr^, sizeof(ipHdr.ip_protocol));IncPtr(sizeof(ipHdr.ip_protocol));iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_protocol);Move(udpHdr.udp_length, ptr^, sizeof(udpHdr.udp_length));IncPtr(sizeof(udpHdr.udp_length));iUdpChecksumSize := iUdpChecksumSize + sizeof(udpHdr.udp_length);move(udpHdr, ptr^, sizeof(udpHdr));IncPtr(sizeof(udpHdr));iUdpChecksumSize := iUdpCheckSumSize + sizeof(udpHdr);Move(StrMessage[1], ptr^, Length(strMessage));IncPtr(Length(StrMessage));iUdpChecksumSize := iUdpChecksumSize + length(strMessage);cksum := checksum(buf, iUdpChecksumSize);udpHdr.udp_checksum := cksum;//// 现在 IP 和 UDP 头OK了,我们可以把它发送出去。//FillChar(Buf, SizeOf(Buf), 0);Ptr := @Buf[0];Move(ipHdr, ptr^, SizeOf(ipHdr)); IncPtr(SizeOf(ipHdr));Move(udpHdr, ptr^, SizeOf(udpHdr)); IncPtr(SizeOf(udpHdr));Move(StrMessage[1], ptr^, length(StrMessage));remote.sin_family := AF_INET;remote.sin_port := htons(iToPort);remote.sin_addr.s_addr := dwToIP;end;procedure TForm1.SendIt;Varsh : TSocket;bOpt : Integer;ret : Integer;Buf : TPacketBuffer;Remote : TSockAddr;Local : TSockAddr;iTotalSize : Word;wsdata : TWSAdata;begin// Startup Winsock 2ret := WSAStartup($0002, wsdata);if ret<>0 then beginmemo1.lines.add('WSA Startup failed.');exit;end;with memo1.lines do beginadd('WSA Startup:');add('Desc.: '+wsData.szDescription);add('Status: '+wsData.szSystemStatus);end;try// Create socketsh := Socket(AF_INET, SOCK_RAW, IPPROTO_UDP);if (sh = INVALID_SOCKET) then beginmemo1.lines.add('Socket() failed: '+IntToStr(WSAGetLastError));exit;end;Memo1.lines.add('Socket Handle = '+IntToStr(sh));// Option: Header IncludebOpt := 1;ret := SetSockOpt(sh, IPPROTO_IP, IP_HDRINCL, @bOpt, SizeOf(bOpt));if ret = SOCKET_ERROR then beginMemo1.lines.add('setsockopt(IP_HDRINCL) failed: '+IntToStr(WSAGetLastError));exit;end;// Build the packetBuildHeaders( SrcIP, SrcPort,DestIP, DestPort,'THIS IS A TEST PACKET',Buf, Remote, iTotalSize );// Send the packetret := SendTo(sh, buf, iTotalSize, 0, Remote, SizeOf(Remote));if ret = SOCKET_ERROR thenMemo1.Lines.Add('sendto() failed: '+IntToStr(WSAGetLastError))elseMemo1.Lines.Add('send '+IntToStr(ret)+' bytes.');// Close socketCloseSocket(sh);finally// Close Winsock 2WSACleanup;end;end;procedure TForm1.Button1Click(Sender: TObject);beginSendIt;end;end. 如何实现在WEBBROWSER中实现获取鼠标点击坐标,并实现下次打开指定定位到这个地方 TDBComboBox 和 TDBLookUpComboBox的困惑 关于文件复制时,复制到的文件正在使用时,会跳出错误的问题! 只剩下这么多分了,全给了,来看看吧 打包问题 VC的DLL在DELPHI引用的问题? FastReport预览问题!!!! 三层结构问题,数据提交出错! 高手来吧 关于远程数据传输的问题,用拨号上网的方式实现断点续传(用Delphi),敬请高手回答?? 求救!! 如何判断是否为数字字符
如果你知道服务器的IP和Port,用TTcpClient控件连接,SendBuf不就可以吗?
如果数据包不一样,服务器不会有响应。
那么该如何写程序呢?
还有就是:注意看一下以上数据会发现只有40个字节是有意义的,那么其他的是怎么产生的呢,有什么用呢?
郁闷阿!
把你的东西定义为一个结构:
type
TMyPack = packed record
ushOrgMachineID : WORD;
ushOrgCommPort : WORD;
...
ushCheckSum : array of char;
xmlcontent : array of BYTE;
end;
用sendbuf发出去不就完了?
interfaceuses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, OleCtrls, Registry;Const
SrcIP = '123.123.123.1';//发送方IP地址
SrcPort = 1234; //发送方端口
DestIP = '127.0.0.2'; //目的IP地址
DestPort = 4321; //目的端口Max_Message = 4068;
Max_Packet = 4096;typeTPacketBuffer = Array[0..Max_Packet-1] of byte;TForm1 = class(TForm)
Button1: TButton;
Memo1: TMemo;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
procedure SendIt;
end;// IP 头
type
T_IP_Header = record
ip_verlen : Byte;
ip_tos : Byte;
ip_totallength : Word;
ip_id : Word;
ip_offset : Word;
ip_ttl : Byte;
ip_protocol : Byte;
ip_checksum : Word;
ip_srcaddr : LongWord;
ip_destaddr : LongWord;
end;// UDP 头
Type
T_UDP_Header = record
src_portno : Word;
dst_portno : Word;
udp_length : Word;
udp_checksum : Word;
end;// 一些 Winsock 2 的类型声明
u_char = Char;
u_short = Word;
u_int = Integer;
u_long = Longint;SunB = packed record
s_b1, s_b2, s_b3, s_b4: u_char;
end;
SunW = packed record
s_w1, s_w2: u_short;
end;
in_addr = record
case integer of
0: (S_un_b: SunB);
1: (S_un_w: SunW);
2: (S_addr: u_long);
end;
TInAddr = in_addr;
Sockaddr_in = record
case Integer of
0: (sin_family: u_short;
sin_port: u_short;
sin_addr: TInAddr;
sin_zero: array[0..7] of Char);
1: (sa_family: u_short;
sa_data: array[0..13] of Char)
end;
TSockAddr = Sockaddr_in;
TSocket = u_int;const
WSADESCRIPTION_LEN = 256;
WSASYS_STATUS_LEN = 128;type
PWSAData = ^TWSAData;
WSAData = record // WSDATA
wVersion: Word;
wHighVersion: Word;
szDescription: array[0..WSADESCRIPTION_LEN] of Char;
szSystemStatus: array[0..WSASYS_STATUS_LEN] of Char;
iMaxSockets: Word;
iMaxUdpDg: Word;
lpVendorInfo: PChar;
end;
TWSAData = WSAData;//定义一些 winsock 2 函数
function closesocket(s: TSocket): Integer; stdcall;
function socket(af, Struct, protocol: Integer): TSocket; stdcall;
function sendto(s: TSocket; var Buf; len, flags: Integer; var addrto: TSockAddr;
tolen: Integer): Integer; stdcall;{}
function setsockopt(s: TSocket; level, optname: Integer; optval: PChar;
optlen: Integer): Integer; stdcall;
function inet_addr(cp: PChar): u_long; stdcall; {PInAddr;} { TInAddr }
function htons(hostshort: u_short): u_short; stdcall;
function WSAGetLastError: Integer; stdcall;
function WSAStartup(wVersionRequired: word; var WSData: TWSAData): Integer; stdcall;
function WSACleanup: Integer; stdcall;const
AF_INET = 2; // internetwork: UDP, TCP, etc.IP_HDRINCL = 2; // IP Header IncludeSOCK_RAW = 3; // raw-protocol interfaceIPPROTO_IP = 0; // dummy for IP
IPPROTO_TCP = 6; // tcp
IPPROTO_UDP = 17; // user datagram protocol
IPPROTO_RAW = 255; // raw IP packetINVALID_SOCKET = TSocket(NOT(0));
SOCKET_ERROR = -1;var
Form1: TForm1;implementation// Import Winsock 2 functions
const WinSocket = 'WS2_32.DLL';function closesocket; external winsocket name 'closesocket';
function socket; external winsocket name 'socket';
function sendto; external winsocket name 'sendto';
function setsockopt; external winsocket name 'setsockopt';
function inet_addr; external winsocket name 'inet_addr';
function htons; external winsocket name 'htons';
function WSAGetLastError; external winsocket name 'WSAGetLastError';
function WSAStartup; external winsocket name 'WSAStartup';
function WSACleanup; external winsocket name 'WSACleanup';
{$R *.DFM}function CheckSum(Var Buffer; Size : integer) : Word;
type
TWordArray = Array[0..1] of Word;
var
ChkSum : LongWord;
i : Integer;
begin
ChkSum := 0;
i := 0;
While Size > 1 do begin
ChkSum := ChkSum + TWordArray(Buffer)[i];
inc(i);
Size := Size - SizeOf(Word);
end;if Size=1 then ChkSum := ChkSum + Byte(TWordArray(Buffer)[i]);ChkSum := (ChkSum shr 16) + (ChkSum and $FFFF);
ChkSum := ChkSum + (Chksum shr 16);Result := Word(ChkSum);
end;
procedure BuildHeaders(
FromIP : String;
iFromPort : Word;
ToIP : String;
iToPort : Word;
StrMessage : String;
Var Buf : TPacketBuffer;
Var remote : TSockAddr;
Var iTotalSize : Word
);
Var
dwFromIP : LongWord;
dwToIP : LongWord;iIPVersion : Word;
iIPSize : Word;
ipHdr : T_IP_Header;
udpHdr : T_UDP_Header;iUdpSize : Word;
iUdpChecksumSize : Word;
cksum : Word;Ptr : ^Byte;procedure IncPtr(Value : Integer);
begin
ptr := pointer(integer(ptr) + Value);
end;begin
// Convert ip address'ssdwFromIP := inet_Addr(PChar(FromIP));
dwToIP := inet_Addr(PChar(ToIP));// 初始化 IP 头
//
iTotalSize := sizeof(ipHdr) + sizeof(udpHdr) + length(strMessage);iIPVersion := 4;
iIPSize := sizeof(ipHdr) div sizeof(LongWord);ipHdr.ip_verlen := (iIPVersion shl 4) or iIPSize;
ipHdr.ip_tos := 0; // IP type of service
ipHdr.ip_totallength := htons(iTotalSize); // Total packet len
ipHdr.ip_id := 0; // Unique identifier: set to 0
ipHdr.ip_offset := 0; // Fragment offset field
ipHdr.ip_ttl := 128; // Time to live
ipHdr.ip_protocol := $11; // Protocol(UDP)
ipHdr.ip_checksum := 0 ; // IP checksum
ipHdr.ip_srcaddr := dwFromIP; // Source address
ipHdr.ip_destaddr := dwToIP; // Destination address
// 初始化 UDP 头
//
iUdpSize := sizeof(udpHdr) + length(strMessage);udpHdr.src_portno := htons(iFromPort) ;
udpHdr.dst_portno := htons(iToPort) ;
udpHdr.udp_length := htons(iUdpSize) ;
udpHdr.udp_checksum := 0 ;iUdpChecksumSize := 0;ptr := @buf[0];
FillChar(Buf, SizeOf(Buf), 0);Move(ipHdr.ip_srcaddr, ptr^, SizeOf(ipHdr.ip_srcaddr));
IncPtr(SizeOf(ipHdr.ip_srcaddr));iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_srcaddr);Move(ipHdr.ip_destaddr, ptr^, SizeOf(ipHdr.ip_destaddr));
IncPtr(SizeOf(ipHdr.ip_destaddr));iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_destaddr);IncPtr(1);Inc(iUdpChecksumSize);Move(ipHdr.ip_protocol, ptr^, sizeof(ipHdr.ip_protocol));
IncPtr(sizeof(ipHdr.ip_protocol));
iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_protocol);Move(udpHdr.udp_length, ptr^, sizeof(udpHdr.udp_length));
IncPtr(sizeof(udpHdr.udp_length));
iUdpChecksumSize := iUdpChecksumSize + sizeof(udpHdr.udp_length);move(udpHdr, ptr^, sizeof(udpHdr));
IncPtr(sizeof(udpHdr));
iUdpChecksumSize := iUdpCheckSumSize + sizeof(udpHdr);Move(StrMessage[1], ptr^, Length(strMessage));
IncPtr(Length(StrMessage));iUdpChecksumSize := iUdpChecksumSize + length(strMessage);cksum := checksum(buf, iUdpChecksumSize);
udpHdr.udp_checksum := cksum;//
// 现在 IP 和 UDP 头OK了,我们可以把它发送出去。
//
FillChar(Buf, SizeOf(Buf), 0);
Ptr := @Buf[0];Move(ipHdr, ptr^, SizeOf(ipHdr)); IncPtr(SizeOf(ipHdr));
Move(udpHdr, ptr^, SizeOf(udpHdr)); IncPtr(SizeOf(udpHdr));
Move(StrMessage[1], ptr^, length(StrMessage));
remote.sin_family := AF_INET;
remote.sin_port := htons(iToPort);
remote.sin_addr.s_addr := dwToIP;
end;procedure TForm1.SendIt;
Var
sh : TSocket;
bOpt : Integer;
ret : Integer;
Buf : TPacketBuffer;
Remote : TSockAddr;
Local : TSockAddr;
iTotalSize : Word;
wsdata : TWSAdata;begin
// Startup Winsock 2
ret := WSAStartup($0002, wsdata);
if ret<>0 then begin
memo1.lines.add('WSA Startup failed.');
exit;
end;
with memo1.lines do begin
add('WSA Startup:');
add('Desc.: '+wsData.szDescription);
add('Status: '+wsData.szSystemStatus);
end;try
// Create socket
sh := Socket(AF_INET, SOCK_RAW, IPPROTO_UDP);
if (sh = INVALID_SOCKET) then begin
memo1.lines.add('Socket() failed: '+IntToStr(WSAGetLastError));
exit;
end;
Memo1.lines.add('Socket Handle = '+IntToStr(sh));// Option: Header Include
bOpt := 1;
ret := SetSockOpt(sh, IPPROTO_IP, IP_HDRINCL, @bOpt, SizeOf(bOpt));
if ret = SOCKET_ERROR then begin
Memo1.lines.add('setsockopt(IP_HDRINCL) failed: '+IntToStr(WSAGetLastError));
exit;
end;// Build the packet
BuildHeaders( SrcIP, SrcPort,
DestIP, DestPort,
'THIS IS A TEST PACKET',
Buf, Remote, iTotalSize );// Send the packet
ret := SendTo(sh, buf, iTotalSize, 0, Remote, SizeOf(Remote));
if ret = SOCKET_ERROR then
Memo1.Lines.Add('sendto() failed: '+IntToStr(WSAGetLastError))
else
Memo1.Lines.Add('send '+IntToStr(ret)+' bytes.');// Close socket
CloseSocket(sh);
finally
// Close Winsock 2
WSACleanup;
end;
end;procedure TForm1.Button1Click(Sender: TObject);
begin
SendIt;
end;end.