type PnetResourceArr = ^TNetResource;implementation procedure GetServerList(List:TStrings); Type {$H+} PMyRec = ^MyRec; MyRec = Record dwScope : Integer; dwType : Integer; dwDisplayType : Integer; dwUsage : Integer; LocalName : String; RemoteName : String; Comment : String; Provider : String; End; {H-} Var NetResource : TNetResource; TempRec : PMyRec; Buf : Pointer; Count, BufSize, Res : DWORD; lphEnum : THandle; p : PNetResourceArr; i, j : SmallInt; NetworkTypeList : TList; begin // Result := False; NetworkTypeList := TList.Create; List.BeginUpdate; List.Clear; GetMem(Buf, 8192); Try Res := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_CONTAINER, Nil,lphEnum); If Res <> 0 Then Raise Exception(Res); Count := $FFFFFFFF; BufSize := 8192; Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize); If Res = ERROR_NO_MORE_ITEMS Then Exit; If (Res <> 0) Then Raise Exception(Res); P := PNetResourceArr(Buf); For I := 0 To Count - 1 Do Begin New(TempRec); TempRec^.dwScope := P^.dwScope; TempRec^.dwType := P^.dwType ; TempRec^.dwDisplayType := P^.dwDisplayType ; TempRec^.dwUsage := P^.dwUsage ; TempRec^.LocalName := StrPas(P^.lpLocalName); TempRec^.RemoteName := StrPas(P^.lpRemoteName); TempRec^.Comment := StrPas(P^.lpComment); TempRec^.Provider := StrPas(P^.lpProvider); NetworkTypeList.Add(TempRec); Inc(P); End; Res := WNetCloseEnum(lphEnum); If Res <> 0 Then Raise Exception(Res); For J := 0 To NetworkTypeList.Count-1 Do Begin TempRec := NetworkTypeList.Items[J]; NetResource := TNetResource(TempRec^); Res := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_CONTAINER, @NetResource,lphEnum); If Res <> 0 Then Raise Exception(Res); While true Do Begin Count := $FFFFFFFF; BufSize := 8192; Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize); If Res = ERROR_NO_MORE_ITEMS Then Break; If (Res <> 0) Then Raise Exception(Res); P := PNetResourceArr(Buf); For I := 0 To Count - 1 Do Begin List.Add(P^.lpRemoteName); Inc(P); End; End; End; Res := WNetCloseEnum(lphEnum); If Res <> 0 Then Raise Exception(Res); //Result := True; Finally FreeMem(Buf); NetworkTypeList.Destroy; End; List.EndUpdate; end;procedure GetUserList(fServer:string;List:TStrings); Var NetResource : TNetResource; Buf : Pointer; Count, BufSize, Res : DWord; Ind : Integer; lphEnum : THandle; Temp : PNetResourceArr; Begin List.Clear; GetMem(Buf, 8192); Try FillChar(NetResource, SizeOf(NetResource), 0); NetResource.lpRemoteName := @fServer[1]; NetResource.dwDisplayType := RESOURCEDISPLAYTYPE_SERVER; NetResource.dwUsage := RESOURCEUSAGE_CONTAINER; NetResource.dwScope := RESOURCETYPE_DISK; Res := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_CONTAINER, @NetResource,lphEnum); If Res <> 0 Then Exit; While True Do Begin Count := $FFFFFFFF; BufSize := 8192; Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize); If Res = ERROR_NO_MORE_ITEMS Then Exit; If (Res <> 0) then Exit; Temp := PNetResourceArr(Buf); For Ind := 0 to Count - 1 do Begin List.Add(Temp^.lpRemoteName + 2); { Add all the network usernames to List StringList } Inc(Temp); End; End; Res := WNetCloseEnum(lphEnum); If Res <> 0 Then Raise Exception(Res); // Result := True; Finally FreeMem(Buf); End; End;这程序是网上来的,我整理了一个,就变成现在这样了。 procedure oncreate; begin GetServerList(Listbox1.Items);end; procedure Listbox1.Onclick begin GetUserList(Listbox1.Items[Listbox1.ItemIndex],Listbox2.Items); end; ************************************** 获得网上邻居列表的程序 程序如下: var i : Integer; ErrCode : Integer; NetRes : Array[0..1023] of TNetResource; EnumHandle : Thandle; EnumEntries : Dword; BufferSize : Dword; ComputerIP,ComputerName:String; begin //try With NetRes[0] do begin dwScope :=RESOURCE_GLOBALNET; dwType :=RESOURCETYPE_ANY; dwDisplayType :=RESOURCEDISPLAYTYPE_DOMAIN; dwUsage :=RESOURCEUSAGE_CONNECTABLE; lpLocalName :=NIL; lpRemoteName :=NIL; lpComment :=NIL; lpProvider :=NIL; end; { get net root } ErrCode:=WNetOpenEnum( RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_CONTAINER, @NetRes[0], EnumHandle );If ErrCode=NO_ERROR then begin EnumEntries:=1; BufferSize:=SizeOf(NetRes); ErrCode:=WNetEnumResource(EnumHandle,EnumEntries,@NetRes[0],BufferSize); WNetCloseEnum(EnumHandle); ErrCode:=WNetOpenEnum( RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_CONNECTABLE, @NetRes[0], EnumHandle ); EnumEntries:=1024; BufferSize:=SizeOf(NetRes); ErrCode:=WNetEnumResource( EnumHandle, EnumEntries, @NetRes, BufferSize ); for i:=0 to 1023 do if NetRes[i].lpRemoteName='' then Exit else begin ComputerName:=Copy(NetRes[i].lpRemoteName,3,Length(NetRes[i].lpRemoteName)-2); ComputerIP:=GetIP(ComputerName); ShowMessage('计算机名' + NetRes[i].lpRemoteName + chr(13) + '计算机说明:' + NetRes[i].lpComment + chr(13) + 'IP地址:' + ComputerIP); end; end; *************
问怎样获取所有能访问的网上邻居中的计算机名称列表? 通过Windows Shell API 用SHGetSpecialFolderLocation获得Neighborhood的PIDL,然后将一个IShellFolder接 口绑定到这个PIDL,再然后就可以用这个接口的EnumObjects函数枚举其中的对象了。 因我不会Delphi,所以不知道用Delphi应该具体如何做,下面一段C++代码列出了"我 的电脑"下的所有项目(我的计算机没有安装网络邻居,所以用这个代替,方法应该是 一样的)#include <stdio.h> #include <iostream.h> #include <comdef.h> #include <windows.h> #include <shellapi.h> #include <shlobj.h> #include <shlguid.h> #include <shlwapi.h>void _inline error(){ cerr<<"ERROR!"<<endl; _exit(1); }void main(int argc, char* argv[]) { IMallocPtr pMalloc; IShellFolderPtr pShellFolder,pFolder; LPITEMIDLIST pidl; IEnumIDListPtr pEnum; HRESULT hr; STRRET Name; ULONG celtFetched; SHGetMalloc(&pMalloc); if (!SUCCEEDED(SHGetDesktopFolder(&pShellFolder))) error(); if (!SUCCEEDED(SHGetSpecialFolderLocation(NULL,CSIDL_DRIVES,&pidl))) error(); pShellFolder->BindToObject(pidl,NULL,IID_IShellFolder,(LPVOID*)&pFolder); hr=pFolder->EnumObjects(NULL,SHCONTF_FOLDERS|SHCONTF_NONFOLDERS| SHCONTF_INCLUDEHIDDEN,&pEnum); while ((hr = pEnum->Next (1, &pidl, &celtFetched)) != S_FALSE && celtFetched == 1) { hr = pFolder->GetDisplayNameOf (pidl, SHGDN_NORMAL , &Name); if (FAILED (hr)) { error(); break; } printf("%s\n",Name.cStr); } if (!pidl) pMalloc->Free(pidl); }************** unit Unit1;interfaceuses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ComCtrls, ImgList, ExtCtrls, ToolWin;type TForm1 = class(TForm) ImageList1: TImageList; ToolBar1: TToolBar; ToolButton1: TToolButton; Panel1: TPanel; ResourceTree: TTreeView; Splitter1: TSplitter; ResourceList: TListView; Panel2: TPanel; lbScope: TLabel; lbType: TLabel; lbDisplayType: TLabel; lbUsage: TLabel; lbLocalName: TLabel; lbRemoteName: TLabel; lbComment: TLabel; lbProvider: TLabel; ToolButton2: TToolButton; procedure Button1Click(Sender: TObject); procedure ResourceTreeChange(Sender: TObject; Node: TTreeNode); procedure ToolButton2Click(Sender: TObject); private { Private declarations } public { Public declarations } function AddTreeItem(nr:NETRESOURCE;node:TTreeNode):TTreeNode; function EnumNetWorkResource(lpnr:PNetResource;node:TTreeNode):Boolean; procedure ConnectResource(pnr:PNetResource); end;var Form1: TForm1;implementation{$R *.DFM}{ TForm1 } function GetLastErrorText:string; var dwSize:DWORD; lpszTemp:LPSTR; begin dwSize:=512; lpszTemp:=nil; try GetMem(lpszTemp,dwSize); FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM or FORMAT_MESSAGE_ARGUMENT_ARRAY, nil,GetLastError,LANG_NEUTRAL,lpszTemp,dwSize,nil); finally Result:=StrPas(lpszTemp); FreeMem(lpszTemp); end; end;function TForm1.EnumNetWorkResource(lpnr:PNetResource;node:TTreeNode):Boolean; var nr:NetResource; hEnum:THandle; lpnrLocal: PNETRESOURCE; cbBuffer:DWORD; cEntries,dwEnumResult:DWORD; i:Integer; LocalNode:TTreeNode; begin Result:=False; cbBuffer:=163840; cEntries:=$ffffffff; lpnrLocal:=nil; if(WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, lpnr, hEnum)<>NO_ERROR)then begin ShowMessage('Open enum error,node='+lpnr^.lpRemoteName); ShowMessage(GetLastErrorText); Result:=False; Exit; end; try repeat lpnrLocal:=PNetResource(GlobalAlloc(GPTR,cbBuffer)); dwEnumResult:=WNetEnumResource(hEnum, cEntries, lpnrLocal, cbBuffer); if(dwEnumResult=NO_ERROR)then begin for i:=0 to cEntries-1 do begin nr:=(PNetResource(PChar(lpnrLocal)+sizeOf(NetResource)*i))^; LocalNode:=AddTreeItem(nr,node); if(RESOURCEUSAGE_CONTAINER= nr.dwUsage and RESOURCEUSAGE_CONTAINER)then begin if(not EnumNetWorkResource(@nr,LocalNode))then begin ShowMessage('Error enum,Parent='+lpnr^.lpRemoteName); ShowMessage(GetLastErrorText); end; end; end; end; until (dwEnumResult=ERROR_NO_MORE_ITEMS); if(dwEnumResult=ERROR_NO_MORE_ITEMS)then Result:=True; Except GlobalFree(Cardinal(lpnrLocal)); WNetCloseEnum(hEnum); Raise; end; GlobalFree(Cardinal(lpnrLocal)); WNetCloseEnum(hEnum); end;procedure TForm1.Button1Click(Sender: TObject); begin EnumNetWorkResource(nil,ResourceTree.Items[0]); end;function TForm1.AddTreeItem(nr: NETRESOURCE; node: TTreeNode): TTreeNode; var pnr:PNetResource; begin GetMem(pnr,SizeOf(NetResource)); pnr^:=nr; Result:=ResourceTree.Items.AddChildObject(node,nr.lpRemoteName,pnr); if(nr.dwUsage=RESOURCEUSAGE_CONTAINER)then Result.ImageIndex:=0 else Result.ImageIndex:=1; end;procedure TForm1.ResourceTreeChange(Sender: TObject; Node: TTreeNode); var pnr:PNetResource; begin pnr:=PNetResource(Node.Data); if(pnr=nil)then Exit; case pnr^.dwScope of RESOURCE_CONNECTED: lbScope.Caption:='Connetted'; RESOURCE_GLOBALNET: lbScope.Caption:='GlobalNet'; RESOURCE_REMEMBERED: lbScope.Caption:='Remembered'; else lbScope.Caption:='else scope:'+IntToStr(pnr^.dwScope); end;case pnr^.dwType of RESOURCETYPE_DISK: lbType.Caption:='Disk'; RESOURCETYPE_PRINT: lbType.Caption:='Printer'; else lbType.Caption:=IntToStr(pnr^.dwType); end;case pnr^.dwDisplayType of RESOURCEDISPLAYTYPE_DOMAIN: lbDisplayType.Caption:='Domain'; RESOURCEDISPLAYTYPE_GENERIC: lbDisplayType.Caption:='Generic'; RESOURCEDISPLAYTYPE_SERVER: lbDisplayType.Caption:='Server'; RESOURCEDISPLAYTYPE_SHARE: lbDisplayType.Caption:='Shared'; else lbDisplayType.Caption:='else type:'+IntToStr(pnr^.dwDisplayType); end;case pnr^.dwUsage of RESOURCEUSAGE_CONTAINER: lbUsage.Caption:='Container'; RESOURCEUSAGE_CONNECTABLE: lbUsage.Caption:='Connectable'; else lbUsage.Caption:='else Usage:'+IntToStr(pnr^.dwUsage); end;lbLocalName.Caption:=pnr^.lpLocalName; lbRemoteName.Caption:=pnr^.lpRemoteName; lbComment.Caption:=pnr^.lpComment; lbProvider.Caption:=pnr^.lpProvider;//ConnectResource(pnr); end;procedure TForm1.ConnectResource(pnr: PNetResource); begin if((pnr^.dwUsage and RESOURCEUSAGE_CONNECTABLE) =RESOURCEUSAGE_CONNECTABLE)then begin { if(WNetAddConnection2(pnr^,PChar(''),'wuwei',0)<>NO_ERROR)then ShowMessage(GetLastErrorText);} if(WNetAddConnection(pnr^.lpRemoteName,'','h:')<>NO_ERROR)then ShowMessage(GetLastErrorText); end; end;procedure TForm1.ToolButton2Click(Sender: TObject); var p:PNetResource; begin p:=PNetResource(ResourceTree.Selected.Data); ConnectResource(p); end;end.******* 查询局域网中NT服务器的计算机名 You should use API functionNET_API_STATUS NetServerEnum( LPWSTR servername, DWORD level, LPBYTE *bufptr, DWORD prefmaxlen, LPDWORD entriesread, LPDWORD totalentries, DWORD servertype, LPWSTR domain, LPDWORD resume_handle );
PnetResourceArr = ^TNetResource;implementation
procedure GetServerList(List:TStrings);
Type
{$H+}
PMyRec = ^MyRec;
MyRec = Record
dwScope : Integer;
dwType : Integer;
dwDisplayType : Integer;
dwUsage : Integer;
LocalName : String;
RemoteName : String;
Comment : String;
Provider : String;
End;
{H-}
Var
NetResource : TNetResource;
TempRec : PMyRec;
Buf : Pointer;
Count,
BufSize,
Res : DWORD;
lphEnum : THandle;
p : PNetResourceArr;
i,
j : SmallInt;
NetworkTypeList : TList;
begin
// Result := False; NetworkTypeList := TList.Create;
List.BeginUpdate;
List.Clear;
GetMem(Buf, 8192);
Try
Res := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_CONTAINER, Nil,lphEnum);
If Res <> 0 Then Raise Exception(Res);
Count := $FFFFFFFF;
BufSize := 8192;
Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize);
If Res = ERROR_NO_MORE_ITEMS Then Exit;
If (Res <> 0) Then Raise Exception(Res);
P := PNetResourceArr(Buf);
For I := 0 To Count - 1 Do
Begin
New(TempRec);
TempRec^.dwScope := P^.dwScope;
TempRec^.dwType := P^.dwType ;
TempRec^.dwDisplayType := P^.dwDisplayType ;
TempRec^.dwUsage := P^.dwUsage ;
TempRec^.LocalName := StrPas(P^.lpLocalName);
TempRec^.RemoteName := StrPas(P^.lpRemoteName);
TempRec^.Comment := StrPas(P^.lpComment);
TempRec^.Provider := StrPas(P^.lpProvider);
NetworkTypeList.Add(TempRec);
Inc(P);
End;
Res := WNetCloseEnum(lphEnum);
If Res <> 0 Then Raise Exception(Res);
For J := 0 To NetworkTypeList.Count-1 Do
Begin
TempRec := NetworkTypeList.Items[J];
NetResource := TNetResource(TempRec^);
Res := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_CONTAINER, @NetResource,lphEnum);
If Res <> 0 Then Raise Exception(Res);
While true Do
Begin
Count := $FFFFFFFF;
BufSize := 8192;
Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize);
If Res = ERROR_NO_MORE_ITEMS Then Break;
If (Res <> 0) Then Raise Exception(Res);
P := PNetResourceArr(Buf);
For I := 0 To Count - 1 Do
Begin
List.Add(P^.lpRemoteName);
Inc(P);
End;
End;
End;
Res := WNetCloseEnum(lphEnum);
If Res <> 0 Then Raise Exception(Res);
//Result := True;
Finally
FreeMem(Buf);
NetworkTypeList.Destroy;
End;
List.EndUpdate;
end;procedure GetUserList(fServer:string;List:TStrings);
Var
NetResource : TNetResource;
Buf : Pointer;
Count,
BufSize,
Res : DWord;
Ind : Integer;
lphEnum : THandle;
Temp : PNetResourceArr;
Begin
List.Clear;
GetMem(Buf, 8192);
Try
FillChar(NetResource, SizeOf(NetResource), 0);
NetResource.lpRemoteName := @fServer[1];
NetResource.dwDisplayType := RESOURCEDISPLAYTYPE_SERVER;
NetResource.dwUsage := RESOURCEUSAGE_CONTAINER;
NetResource.dwScope := RESOURCETYPE_DISK;
Res := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, RESOURCEUSAGE_CONTAINER, @NetResource,lphEnum);
If Res <> 0 Then Exit;
While True Do
Begin
Count := $FFFFFFFF;
BufSize := 8192;
Res := WNetEnumResource(lphEnum, Count, Pointer(Buf), BufSize);
If Res = ERROR_NO_MORE_ITEMS Then Exit;
If (Res <> 0) then Exit;
Temp := PNetResourceArr(Buf);
For Ind := 0 to Count - 1 do
Begin
List.Add(Temp^.lpRemoteName + 2); { Add all the network usernames to List StringList }
Inc(Temp);
End;
End;
Res := WNetCloseEnum(lphEnum);
If Res <> 0 Then Raise Exception(Res);
// Result := True;
Finally
FreeMem(Buf);
End;
End;这程序是网上来的,我整理了一个,就变成现在这样了。
procedure oncreate;
begin GetServerList(Listbox1.Items);end;
procedure Listbox1.Onclick
begin
GetUserList(Listbox1.Items[Listbox1.ItemIndex],Listbox2.Items);
end;
**************************************
获得网上邻居列表的程序
程序如下:
var
i : Integer;
ErrCode : Integer;
NetRes : Array[0..1023] of TNetResource;
EnumHandle : Thandle;
EnumEntries : Dword;
BufferSize : Dword;
ComputerIP,ComputerName:String;
begin
//try
With NetRes[0] do begin
dwScope :=RESOURCE_GLOBALNET;
dwType :=RESOURCETYPE_ANY;
dwDisplayType :=RESOURCEDISPLAYTYPE_DOMAIN;
dwUsage :=RESOURCEUSAGE_CONNECTABLE;
lpLocalName :=NIL;
lpRemoteName :=NIL;
lpComment :=NIL;
lpProvider :=NIL;
end;
{ get net root }
ErrCode:=WNetOpenEnum(
RESOURCE_GLOBALNET,
RESOURCETYPE_ANY,
RESOURCEUSAGE_CONTAINER,
@NetRes[0],
EnumHandle
);If ErrCode=NO_ERROR then begin
EnumEntries:=1;
BufferSize:=SizeOf(NetRes);
ErrCode:=WNetEnumResource(EnumHandle,EnumEntries,@NetRes[0],BufferSize);
WNetCloseEnum(EnumHandle);
ErrCode:=WNetOpenEnum(
RESOURCE_GLOBALNET,
RESOURCETYPE_ANY,
RESOURCEUSAGE_CONNECTABLE,
@NetRes[0],
EnumHandle
);
EnumEntries:=1024;
BufferSize:=SizeOf(NetRes);
ErrCode:=WNetEnumResource(
EnumHandle,
EnumEntries,
@NetRes,
BufferSize
); for i:=0 to 1023 do
if NetRes[i].lpRemoteName='' then Exit
else begin
ComputerName:=Copy(NetRes[i].lpRemoteName,3,Length(NetRes[i].lpRemoteName)-2);
ComputerIP:=GetIP(ComputerName);
ShowMessage('计算机名' + NetRes[i].lpRemoteName + chr(13)
+ '计算机说明:' + NetRes[i].lpComment + chr(13)
+ 'IP地址:' + ComputerIP);
end;
end;
*************
通过Windows Shell API
用SHGetSpecialFolderLocation获得Neighborhood的PIDL,然后将一个IShellFolder接
口绑定到这个PIDL,再然后就可以用这个接口的EnumObjects函数枚举其中的对象了。
因我不会Delphi,所以不知道用Delphi应该具体如何做,下面一段C++代码列出了"我
的电脑"下的所有项目(我的计算机没有安装网络邻居,所以用这个代替,方法应该是
一样的)#include <stdio.h>
#include <iostream.h>
#include <comdef.h>
#include <windows.h>
#include <shellapi.h>
#include <shlobj.h>
#include <shlguid.h>
#include <shlwapi.h>void _inline error(){ cerr<<"ERROR!"<<endl; _exit(1); }void main(int argc, char* argv[])
{
IMallocPtr pMalloc;
IShellFolderPtr pShellFolder,pFolder;
LPITEMIDLIST pidl;
IEnumIDListPtr pEnum;
HRESULT hr;
STRRET Name;
ULONG celtFetched; SHGetMalloc(&pMalloc); if (!SUCCEEDED(SHGetDesktopFolder(&pShellFolder)))
error();
if (!SUCCEEDED(SHGetSpecialFolderLocation(NULL,CSIDL_DRIVES,&pidl)))
error();
pShellFolder->BindToObject(pidl,NULL,IID_IShellFolder,(LPVOID*)&pFolder); hr=pFolder->EnumObjects(NULL,SHCONTF_FOLDERS|SHCONTF_NONFOLDERS|
SHCONTF_INCLUDEHIDDEN,&pEnum); while ((hr = pEnum->Next (1, &pidl, &celtFetched)) != S_FALSE &&
celtFetched == 1)
{
hr = pFolder->GetDisplayNameOf (pidl, SHGDN_NORMAL , &Name);
if (FAILED (hr))
{
error();
break;
}
printf("%s\n",Name.cStr);
} if (!pidl)
pMalloc->Free(pidl);
}**************
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, ComCtrls, ImgList, ExtCtrls, ToolWin;type
TForm1 = class(TForm)
ImageList1: TImageList;
ToolBar1: TToolBar;
ToolButton1: TToolButton;
Panel1: TPanel;
ResourceTree: TTreeView;
Splitter1: TSplitter;
ResourceList: TListView;
Panel2: TPanel;
lbScope: TLabel;
lbType: TLabel;
lbDisplayType: TLabel;
lbUsage: TLabel;
lbLocalName: TLabel;
lbRemoteName: TLabel;
lbComment: TLabel;
lbProvider: TLabel;
ToolButton2: TToolButton;
procedure Button1Click(Sender: TObject);
procedure ResourceTreeChange(Sender: TObject; Node: TTreeNode);
procedure ToolButton2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
function AddTreeItem(nr:NETRESOURCE;node:TTreeNode):TTreeNode;
function EnumNetWorkResource(lpnr:PNetResource;node:TTreeNode):Boolean;
procedure ConnectResource(pnr:PNetResource);
end;var
Form1: TForm1;implementation{$R *.DFM}{ TForm1 }
function GetLastErrorText:string;
var
dwSize:DWORD;
lpszTemp:LPSTR;
begin
dwSize:=512;
lpszTemp:=nil;
try
GetMem(lpszTemp,dwSize);
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM or FORMAT_MESSAGE_ARGUMENT_ARRAY,
nil,GetLastError,LANG_NEUTRAL,lpszTemp,dwSize,nil);
finally
Result:=StrPas(lpszTemp);
FreeMem(lpszTemp);
end;
end;function TForm1.EnumNetWorkResource(lpnr:PNetResource;node:TTreeNode):Boolean;
var
nr:NetResource;
hEnum:THandle;
lpnrLocal: PNETRESOURCE;
cbBuffer:DWORD;
cEntries,dwEnumResult:DWORD;
i:Integer;
LocalNode:TTreeNode;
begin
Result:=False;
cbBuffer:=163840;
cEntries:=$ffffffff;
lpnrLocal:=nil;
if(WNetOpenEnum(RESOURCE_GLOBALNET,
RESOURCETYPE_ANY,
0,
lpnr,
hEnum)<>NO_ERROR)then
begin
ShowMessage('Open enum error,node='+lpnr^.lpRemoteName);
ShowMessage(GetLastErrorText);
Result:=False;
Exit;
end;
try
repeat
lpnrLocal:=PNetResource(GlobalAlloc(GPTR,cbBuffer));
dwEnumResult:=WNetEnumResource(hEnum,
cEntries,
lpnrLocal,
cbBuffer);
if(dwEnumResult=NO_ERROR)then
begin
for i:=0 to cEntries-1 do
begin
nr:=(PNetResource(PChar(lpnrLocal)+sizeOf(NetResource)*i))^;
LocalNode:=AddTreeItem(nr,node);
if(RESOURCEUSAGE_CONTAINER=
nr.dwUsage and RESOURCEUSAGE_CONTAINER)then
begin
if(not EnumNetWorkResource(@nr,LocalNode))then
begin
ShowMessage('Error enum,Parent='+lpnr^.lpRemoteName);
ShowMessage(GetLastErrorText);
end;
end;
end;
end;
until (dwEnumResult=ERROR_NO_MORE_ITEMS);
if(dwEnumResult=ERROR_NO_MORE_ITEMS)then
Result:=True;
Except
GlobalFree(Cardinal(lpnrLocal));
WNetCloseEnum(hEnum);
Raise;
end;
GlobalFree(Cardinal(lpnrLocal));
WNetCloseEnum(hEnum);
end;procedure TForm1.Button1Click(Sender: TObject);
begin
EnumNetWorkResource(nil,ResourceTree.Items[0]);
end;function TForm1.AddTreeItem(nr: NETRESOURCE; node: TTreeNode): TTreeNode;
var
pnr:PNetResource;
begin
GetMem(pnr,SizeOf(NetResource));
pnr^:=nr;
Result:=ResourceTree.Items.AddChildObject(node,nr.lpRemoteName,pnr);
if(nr.dwUsage=RESOURCEUSAGE_CONTAINER)then
Result.ImageIndex:=0
else Result.ImageIndex:=1;
end;procedure TForm1.ResourceTreeChange(Sender: TObject; Node: TTreeNode);
var
pnr:PNetResource;
begin
pnr:=PNetResource(Node.Data);
if(pnr=nil)then Exit;
case pnr^.dwScope of
RESOURCE_CONNECTED:
lbScope.Caption:='Connetted';
RESOURCE_GLOBALNET:
lbScope.Caption:='GlobalNet';
RESOURCE_REMEMBERED:
lbScope.Caption:='Remembered';
else
lbScope.Caption:='else scope:'+IntToStr(pnr^.dwScope);
end;case pnr^.dwType of
RESOURCETYPE_DISK:
lbType.Caption:='Disk';
RESOURCETYPE_PRINT:
lbType.Caption:='Printer';
else
lbType.Caption:=IntToStr(pnr^.dwType);
end;case pnr^.dwDisplayType of
RESOURCEDISPLAYTYPE_DOMAIN:
lbDisplayType.Caption:='Domain';
RESOURCEDISPLAYTYPE_GENERIC:
lbDisplayType.Caption:='Generic';
RESOURCEDISPLAYTYPE_SERVER:
lbDisplayType.Caption:='Server';
RESOURCEDISPLAYTYPE_SHARE:
lbDisplayType.Caption:='Shared';
else
lbDisplayType.Caption:='else type:'+IntToStr(pnr^.dwDisplayType);
end;case pnr^.dwUsage of
RESOURCEUSAGE_CONTAINER:
lbUsage.Caption:='Container';
RESOURCEUSAGE_CONNECTABLE:
lbUsage.Caption:='Connectable';
else
lbUsage.Caption:='else Usage:'+IntToStr(pnr^.dwUsage);
end;lbLocalName.Caption:=pnr^.lpLocalName;
lbRemoteName.Caption:=pnr^.lpRemoteName;
lbComment.Caption:=pnr^.lpComment;
lbProvider.Caption:=pnr^.lpProvider;//ConnectResource(pnr);
end;procedure TForm1.ConnectResource(pnr: PNetResource);
begin
if((pnr^.dwUsage and RESOURCEUSAGE_CONNECTABLE)
=RESOURCEUSAGE_CONNECTABLE)then
begin
{ if(WNetAddConnection2(pnr^,PChar(''),'wuwei',0)<>NO_ERROR)then
ShowMessage(GetLastErrorText);}
if(WNetAddConnection(pnr^.lpRemoteName,'','h:')<>NO_ERROR)then
ShowMessage(GetLastErrorText);
end;
end;procedure TForm1.ToolButton2Click(Sender: TObject);
var
p:PNetResource;
begin
p:=PNetResource(ResourceTree.Selected.Data);
ConnectResource(p);
end;end.*******
查询局域网中NT服务器的计算机名
You should use API functionNET_API_STATUS NetServerEnum(
LPWSTR servername,
DWORD level,
LPBYTE *bufptr,
DWORD prefmaxlen,
LPDWORD entriesread,
LPDWORD totalentries,
DWORD servertype,
LPWSTR domain,
LPDWORD resume_handle
);