Mega Code Archive
Api-function for console command net send
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Question:
Is there an API-function for the console command NET SEND (from Windows NT)
NET SEND {name | * | /DOMAIN[:name] | /USERS} message
Answer:
NET SEND uses named pipes. The sample program below links to function NetMessageBufferSend in the 'NETAPI32.DLL' library.
program Dummy;
function NetSend(Dest, Source, Msg: string) : Longint; overload;
type
TNetMessageBufferSendFunction = function(servername, msgname, fromname: PWideChar;
Buf: PWideChar; buflen: Cardinal) : Longint; stdcall;
var
NetMessageBufferSend: TNetMessageBufferSendFunction;
SourceWideChar: PWideChar;
DestWideChar: PWideChar;
MessagetextWideChar: PWideChar;
Handle: THandle;
begin { NetSend }
Handle := LoadLibrary('NETAPI32.DLL');
if Handle=0 then
begin
Result := GetLastError;
Exit;
end; { Handle=0 }
@NetMessageBufferSend := GetProcAddress(Handle, 'NetMessageBufferSend');
if @NetMessageBufferSend=nil then
begin
Result := GetLastError;
Exit;
end; { @NetMessageBufferSend=nil }
MessagetextWideChar := nil;
SourceWideChar := nil;
DestWideChar := nil;
try
GetMem(MessagetextWideChar, Length(Msg)*SizeOf(WideChar)+
1);
GetMem(DestWideChar, 20*SizeOf(WideChar)+1);
StringToWideChar(Msg, MessagetextWideChar, Length(Msg)*SizeOf(WideChar)+
1);
StringToWideChar(Dest, DestWideChar, 20*SizeOf(WideChar)+
1);
if Source='' then
Result := NetMessageBufferSend(nil, DestWideChar, nil, MessagetextWideChar,
Length(Msg)*SizeOf(WideChar)+
1)
else
begin
GetMem(SourceWideChar, 20*SizeOf(WideChar)+1);
StringToWideChar(Source, SourceWideChar, 20*SizeOf(WideChar)+
1);
Result := NetMessageBufferSend(nil, DestWideChar, SourceWideChar,
MessagetextWideChar, Length(Msg)*SizeOf(WideChar)
+1);
FreeMem(SourceWideChar);
end; { not (Source='') }
finally
FreeMem(MessagetextWideChar);
FreeLibrary(Handle);
end; { try }
end; { NetSend }
function NetSend(Dest, Msg: string) : Longint; overload;
begin { NetSend }
Result := NetSend(Dest, '', Msg);
end; { NetSend }
function NetSend(Msg: string) : Longint; overload;
begin { NetSend }
Result := NetSend('', '', Msg);
end; { NetSend }
begin
NetSend('Mike', 'Hello, Mike');
end.
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