Title: Finding Printers in the network
Question: Find the printers for a server specific on the network
Answer:
First: insert on uses the unit name "winspool" and "printers". After this you can write this code using the windows API EnumPrinters: The parameter psName is the server in the network and the result is TStrings. You can use this in a combo or a listbox.
function TForm1.GetPrintServers(psName: string): TStrings;
var
lpBuffer,lpPrinterInfo: PChar;
lcCount,lcNumCount : DWord ;
liCount,liAux:integer;
lsAuxNome:TStrings;
function GetContexts ( pctipo : cardinal; ppName : PChar ):TStringlist;
var
liCont : integer;
lsNome:string;
lbPode:boolean;
begin
lbPode:=false;
Result:=TStringlist.Create;
case pcTipo of
8: lbPode :=
EnumPrinters(pctipo,ppName,1,PByte(lpBuffer),lcCount,lcCount,
lcNumCount);
16: lbPode :=
EnumPrinters(pctipo,nil,1,PByte(lpBuffer),lcCount,lcCount,
lcNumCount);
end;
if not lbPode then
Exit;
lpPrinterInfo := lpBuffer;
for licont := 0 to lcNumCount - 1 do
begin
with PPrinterInfo1(lpPrinterInfo)^ do
begin
if pcTipo = 8 then
begin
liAux:=Pos(',',pDescription);
lsNome := copy(pDescription,liAux+1,Length(pDescription));
Result.Add(lsNome);
end
else
begin
liAux := Pos(ppName,pName);
lsNome := copy(pName,liAux,Length(pName));
if lsNome = ppName then
begin
Result.Add(string(pName));
Exit;
end;
end;
end;
Inc(lpPrinterInfo, sizeof(TPrinterInfo1));
end;
end;
begin
lsAuxNome:=TStrings.Create;
lcCount := 0;
EnumPrinters(PRINTER_ENUM_REMOTE,nil,1,nil,0,lcCount,lcNumCount);
GetMem(lpBuffer,lcCount);
lsAuxNome := GetContexts(16,PChar(psName));
if lsAuxNome.Count 0 then
Result:=GetContexts(8,PChar(lsAuxNome.Strings[0]))
else
begin
lsAuxNome.Add('No Encontrada');
Result:=lsAuxNome;
end;
end;