delphi 调用系统dll文件

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4030127 2010-02-26 15:04:38 博主文章分类：delphi

netmessagebuffersend示例

作者：未知来源：月光软件站 加入时间：2005-2-28　月光软件站

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
function ToUnicode(str:string;dest:PWideChar):integer;
function SendMsg(Toh,From,Msg:string):integer;
function NetMessageBufferSend(servername:PWideChar;
                              MsgName:PWideChar;
                              FromName:PWideChar;
                              Buf: PWideChar;
                              var BufLen:integer):integer;cdecl;
type
TForm1 = class(TForm)
    Button1: TButton;
    ComboBox1: TComboBox;
    Memo1: TMemo;
    procedure Button1Click(Sender: TObject);
private
    { Private declarations }
public
    { Public declarations }
end;

var
Form1: TForm1;

implementation
{$R *.dfm}
function NetMessageBufferSend; external 'netapi32.dll' name 'NetMessageBufferSend';
function ToUnicode(str:string;dest:PWideChar):integer;
var
len:integer;
begin
StringToWideChar(str,dest,len);
Result:=len;
end;
function SendMsg(Toh,From,Msg:string):integer;
var
ToName :array [0..64] of WideChar;
WMsgText:array [0..1000] of WideChar;
MsgLen, i:integer;
begin
for i := 0 to 64 do ToName[i] := #0;
ToUnicode(Toh,ToName);
for i := 0 to 1000 do WMsgText[i] := #0;
ToUnicode(Msg,WMsgText);
Result:=NetMessageBufferSend(nil,ToName,nil,@WMsgText,MsgLen);
end;
procedure TForm1.Button1Click(Sender: TObject);
var
size:integer;
begin
sendmsg('192.168.2.16',',192.168.2.16','kjjkkjkjkj');
end;

end.