获得本机的计算机名称(100分)

用gethostname()得到计算机名称
名称带下划线时,取出的名不对,
如计算机名称是 mlx_machin,但取出的是 mlx-machin
不知如何解决(在Win98,win2000下都好使),请大侠帮忙.谢谢.

问题提出/摘要:
如何使用WinAPI来查找LAN中所有的计算机？

回答:
调用FindComputers，返回WinAPI错误代码（如果有的话）。这个函数将会在TStringList类型的Computers对象中填入计算机名称。

以下代码是在Delphi5上开发的，但是应该是向后兼容的。

Answer:


unit FindComp;

interface

uses
Windows, Classes;

function FindComputers: DWORD;

var
Computers: TStringList;

implementation

uses
SysUtils;

const
MaxEntries = 250;

function FindComputers: DWORD;

var
EnumWorkGroupHandle, EnumComputerHandle: THandle;
EnumError: DWORD;
Network: TNetResource;
WorkGroupEntries, ComputerEntries: DWORD;
EnumWorkGroupBuffer, EnumComputerBuffer: array[1..MaxEntries] of TNetResource;
EnumBufferLength: DWORD;
I, J: DWORD;

begin

Computers.Clear;

FillChar(Network, SizeOf(Network), 0);
with Network do
begin
dwScope := RESOURCE_GLOBALNET;
dwType := RESOURCETYPE_ANY;
dwUsage := RESOURCEUSAGE_CONTAINER;
end;

EnumError := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, @Network, EnumWorkGroupHandle);

if EnumError = NO_ERROR then
begin
WorkGroupEntries := MaxEntries;
EnumBufferLength := SizeOf(EnumWorkGroupBuffer);
EnumError := WNetEnumResource(EnumWorkGroupHandle, WorkGroupEntries, @EnumWorkGroupBuffer, EnumBufferLength);

if EnumError = NO_ERROR then
begin
for I := 1 to WorkGroupEntries do
begin
EnumError := WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, @EnumWorkGroupBuffer, EnumComputerHandle);
if EnumError = NO_ERROR then
begin
ComputerEntries := MaxEntries;
EnumBufferLength := SizeOf(EnumComputerBuffer);
EnumError := WNetEnumResource(EnumComputerHandle, ComputerEntries, @EnumComputerBuffer, EnumBufferLength);
if EnumError = NO_ERROR then
for J := 1 to ComputerEntries do
Computers.Add(Copy(EnumComputerBuffer[J].lpRemoteName, 3, Length(EnumComputerBuffer[J].lpRemoteName) - 2));
WNetCloseEnum(EnumComputerHandle);
end;
end;
end;
WNetCloseEnum(EnumWorkGroupHandle);
end;

if EnumError = ERROR_NO_MORE_ITEMS then
EnumError := NO_ERROR;
Result := EnumError;

end;

initialization

Computers := TStringList.Create;

finalization

Computers.Free;

end.

function Tdatamodufrm.myGetComputerName : String;
var
pcComputer : PChar;
dwCSize : DWORD;
begin
dwCSize := MAX_COMPUTERNAME_LENGTH + 1;
GetMem( pcComputer, dwCSize ); // allocate memory for the string
try
if Windows.GetComputerName( pcComputer, dwCSize ) then
Result := pcComputer;
finally
FreeMem( pcComputer ); // now free the memory allocated for the string
end;
end;
调用此API函数即可

试试这个：
var
CNameBuffer : PChar;
fl_loaded : Boolean;
CLen : ^DWord;
begin
GetMem(CNameBuffer,255);
New(CLen);
CLen^:= 255;

fl_loaded := GetComputerName(CNameBuffer,CLen^);

if fl_loaded then
ComputerName := StrPas(CNameBuffer)
else
ComputerName := 'Unkown';

FreeMem(CNameBuffer,255);
Dispose(CLen);
end;

同意楼上的兄弟
用GetComputerName就可以实现
估计你原来的代码都不用变
只把gethostname换成GetComputerName就可以

多人接受答案了。