Interested in learning Delphi ???

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Interested in learning Delphi ???

Postby Departure » Sun Oct 23, 2005 10:04 pm


Im thinking to my self to start and learn Delphi, I have played with Delphi for the last 5 years and made some very simple apps but i never got right into it.

Would anyone on this forum be interested to go down that path of learning a truly e-lite programming language with me? it better to have more than one person learning that way the ideas and procedures can be shared between us.

The reason i dont choose C++ is because i feel its very common , Delphi is not and can be used to make fast but very powerful apps. BTW i am talking about the older delphi and not the .net version

Post back if anyone is interested in learning or can already program with delphi..
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Postby locohacker » Mon Oct 24, 2005 7:57 am

Lol man I gain too, I wanna learn all the languages, hey in delphi do people needs to download extra files :) thas the only thing I hate about vb they need to get supportitng files.
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Postby Departure » Mon Oct 24, 2005 8:10 am

nope thats the whole point about delphi , the output.exe is larger but all dependentcys are in the final output.exe which means no extra files ect...
Plus i have read on this forum all good crackers, hackers ect... use C++ ... thats a lie!!! just about all good crackers use delphi and asm assembly, and as for hackers they normaly use script such as cgi and perl ect...
When people talk about hackers using C++ they forget to mention that its not the hacker using C++ its the Programmer who make hacking tools that is using it. there is a big diffrence!!!

Anyway Vb runtime files come as a standard with windows XP and there is allways a API call you can use instead of addin uncommon componates to your project
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Postby locohacker » Mon Oct 24, 2005 2:28 pm

yeps most of the cool trojans are made in delphi, so there must be something real good about it that the trojan makers are using it :)
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Postby Guest » Wed Oct 26, 2005 2:28 am

i can help you with Delphi if you need help i coded 3 programs in delphi before. 8)
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Postby BattleStar-Galactica » Sat Apr 15, 2006 1:32 am

I installed my delphi5 a few minute ago.
if you have any trick about delphi, i'm very happy to learn your trick

like this function to hide start button of destop

ShowWindow(GetWindow(FindWindow('Shell_traywnd', NiL), 5), 0);

and here it's to show start button of destope

ShowWindow(GetWindow(FindWindow('Shell_traywnd', NiL), 5), 9);

8) :lol: I started delphi just a few minutes ago lol. everything and every trick i'm interesting
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Postby Departure » Sat Apr 15, 2006 3:33 am

nanomachine007 we can learn together mann, i have been waiting for someone to take on delphi for a long time, there is only a limited number resources on the net to learn from :O( ... but im going to try and find some good resource site so i can start learning........ I know it will take atleast 6 months to 1 year before i can write any decent apps in delphi but im willing to hang out for that long...

Im sick of VB and paltalk, inspeak was written in delphi :O) you could never write something like that with Vb6,
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Postby BattleStar-Galactica » Sat Apr 15, 2006 10:23 am

ok let's learning delphi together, but on what forum we can post ours problem to solve. loco don't learn delphi, so i think he is not interesting about ours post on his forum

first i will try to discover le typecast in delphi,array,loop statement etc...

i must have some basic thing and after i will attack api :lol:
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Postby Departure » Sat Apr 15, 2006 10:30 am

heres my first delphi app, it a simple registry thing, I found that playing with the registry in delphi is ALOT easyer than Vb

this app just get the current Paltalk username

Very simple but yet very affective to make other apps with.

this will work with Delphi 5, im using Delphi 6 but the most is the same
Attachments
Delphi Paltalk username.rar
Get the current paltalk username
(4.11 KiB) Downloaded 134 times
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Postby BattleStar-Galactica » Sat Apr 15, 2006 10:37 am

ok let i check how it work :lol:
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Postby BattleStar-Galactica » Sat Apr 15, 2006 10:49 am

I dont know why i can not run your project code directly with my delphi5, it has an error about file not found something like that but i just have copy your function in my new delphi5 project and add registry library and do copy&past your code and it work perfect thanks.
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Postby Departure » Sat Apr 15, 2006 11:17 am

i am not sure why you got hat error, it could because im using Delphi 6 enterprise edition, which might have some extra componates, so might be declaired at run time, but im thinking Vb when i say this, so im not really sure, but the main thing is you got it to work and you see how easy it is to play with the registry with Delphi :O)
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Postby BattleStar-Galactica » Sat Apr 15, 2006 6:31 pm

ok i found what makes that error, cuz you used variants type in your app and i think maybe delphi5 that library does not exist. I removed your variant tye library and it's all ok, now i can run your app.

delphi it's easyer to learn then other language like MFC or Win32 100 times :lol:

it's easy like when u start vb hehhehe.
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Postby Departure » Sat Apr 15, 2006 8:11 pm

"File Not Found: Variants.dcu" Solution
Remove Variants from uses in Unit1.pas

Delphi 6 or higher auto generates Variants in uses

yeah found this out also.....

And yes delphi is alot easyer than i thought it would be to learn, maybe because of the Vb knowlage that it makes it a bit easyer
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Postby BattleStar-Galactica » Sun Apr 16, 2006 12:43 am

here it's some basic thing in delphi i judge the beginer must now :lol:

//////////messagebox multiline
procedure TForm1.Button1Click(Sender: TObject);
begin
MessageBox(handle, 'First line'+#10+#13+'Second line'+#10+#13+'Third line', 'Multiline MessageBox', MB_OK);
end;
/////////////////////end messagebox multiline


////////////loop for
procedure TForm1.Button1Click(Sender: TObject);
var
i : Integer;
begin

for i := 0 to 3 do
begin
showmessage('test...' + IntToStr(i));
end;
end;
//////////////////end loop for

///////loop while
procedure TForm1.Button1Click(Sender: TObject);
var
i : Integer;

begin
i :=0;
while i < 4 do
begin
showmessage('test' + IntToStr(i));
i := i + 1;
end;
end;
///////////end loop while

///////////////////array declaration
procedure TForm1.Button1Click(Sender: TObject);
const Digits: array[0..9] of Char = ('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
var
i : Integer;
begin
for i:=0 to High(Digits) do
showmessage(Digits[i]);
end;
///////////end array declaration



////////////dynamic array test

procedure TForm1.Button1Click(Sender: TObject);
var

A : array of Integer;

begin
SetLength(A, 1);
A[0] :=10;
showmessage(IntToStr(A[0]));
end;
//////////end dynamic array test




//function make string
function MakeStr(const Args: array of const): string;

const
BoolChars: array[Boolean] of Char = ('F', 'T');
var
I: Integer;
begin
Result := '';
for I := 0 to High(Args) do
with Args[I] do
case VType of
vtInteger: Result := Result + IntToStr(VInteger);
vtBoolean: Result := Result + BoolChars[VBoolean];
vtChar: Result := Result + VChar;
vtExtended: Result := Result + FloatToStr(VExtended^);

vtString: Result := Result + VString^;
vtPChar: Result := Result + VPChar;
vtObject: Result := Result + VObject.ClassName;
vtClass: Result := Result + VClass.ClassName;
vtAnsiString: Result := Result + string(VAnsiString);
vtCurrency: Result := Result + CurrToStr(VCurrency^);
vtVariant: Result := Result + string(VVariant^);
vtInt64: Result := Result + IntToStr(VInt64^);

end;
end;
//end function make string
//use this function like bellow procedure
procedure TForm1.Button1Click(Sender: TObject);
var
mystr: string;
begin
mystr := MakeStr(['test', 100, ' ', True, 3.14159, TForm]);
showmessage(mystr);
end;





////////////function declaration
function Calc(X, Y: Integer): Integer;

begin
Calc := X + Y;
end;

type TFunction = function(X, Y: Integer): Integer;

const MyFunction: TFunction = Calc;
///////end function declaration
//test this function

procedure TForm1.Button1Click(Sender: TObject);
begin
showmessage(IntToStr(MyFunction(5, 7)));
end;
//or
procedure TForm1.Button1Click(Sender: TObject);
begin
showmessage(IntToStr(Calc(5, 7)));
end;
///////////end test this function







///////out parameter procedure
procedure GetInfo(out Info: string);
begin
Info := 'my value to be return';

end;
/////////end out parameter procedure
procedure TForm1.Button1Click(Sender: TObject);
var
mystr: string;

begin
GetInfo(mystr);
showmessage(mystr);
end;







////////////read text file
procedure TForm1.Button1Click(Sender: TObject);
var
myFile : TextFile;
text : string;
begin
AssignFile(myFile, 'Test.txt');
// Reopen the file for reading
Reset(myFile);
// Display the file contents
while not Eof(myFile) do
begin
ReadLn(myFile, text);
ShowMessage(text);
end;
// Close the file for the last time
CloseFile(myFile);
end;
//////////end read text file







//////write text file
procedure TForm1.Button1Click(Sender: TObject);
var
myFile : TextFile;
text : string;
begin
// Try to open the Test.txt file for writing to
AssignFile(myFile, 'Test.txt');
ReWrite(myFile);

// Write a couple of well known words to this file
WriteLn(myFile, 'Hello');
WriteLn(myFile, 'World');

// Close the file
CloseFile(myFile);

// Reopen the file for reading
Reset(myFile);

// Display the file contents
while not Eof(myFile) do
begin
ReadLn(myFile, text);
ShowMessage(text);
end;

// Close the file for the last time
CloseFile(myFile);

end;
//////////end write text file







///////write append text file
procedure TForm1.Button3Click(Sender: TObject);
var
myFile : TextFile;
text : string;
begin
AssignFile(myFile, 'Test.txt');
Append(myFile);
WriteLn(myFile, 'my append string');
WriteLn(myFile, 'my other append string');
CloseFile(myFile);
end;
//////////end write append text file







/////////write binary file
procedure writebf();
type
TCustomer = Record
name : string[20];
age : Integer;
male : Boolean;
end;

var
myFile : File of TCustomer; // A file of customer records
customer : TCustomer; // A customer record variable

begin
// Try to open the Test.cus binary file for writing to
AssignFile(myFile, 'Test.cus');
ReWrite(myFile);

// Write a couple of customer records to the file
customer.name := 'Fred Bloggs';
customer.age := 21;
customer.male := true;
Write(myFile, customer);

customer.name := 'Jane Turner';
customer.age := 45;
customer.male := false;
Write(myFile, customer);

// Close the file
CloseFile(myFile);

// Reopen the file in read only mode
FileMode := fmOpenRead;
Reset(myFile);

// Display the file contents
while not Eof(myFile) do
begin
Read(myFile, customer);
if customer.male
then ShowMessage('Man with name '+customer.name+
' is '+IntToStr(customer.age))
else ShowMessage('Lady with name '+customer.name+
' is '+IntToStr(customer.age));
end;

// Close the file for the last time
CloseFile(myFile);
end;
//////////end write binary file








////////readwriteblock binary file
procedure readwriteblockbf();
var
myFile : File;
byteArray : array[1..8] of byte;
oneByte : byte;
i, count : Integer;

begin
// Try to open the Test.byt file for writing to
AssignFile(myFile, 'Test.byt');
ReWrite(myFile, 4); // Define a single 'record' as 4 bytes

// Fill out the data array
for i := 1 to 8 do
byteArray[i] := i;

// Write the data array to the file
BlockWrite(myFile, byteArray, 2); // Write 2 'records' of 4 bytes

// Fill out the data array with different data
for i := 1 to 4 do
byteArray[i] := i*i; // Value : 1, 4, 9, 16

// Write only the first 4 items from the data array to the file
BlockWrite(myFile, byteArray, 1); // Write 1 record of 4 bytes

// Close the file
CloseFile(myFile);

// Reopen the file for reading only
FileMode := fmOpenRead;
Reset(myFile, 1); // Now we define one record as 1 byte

// Display the file contents
// Start with a read of the first 6 bytes. 'count' is set to the
// actual number read
ShowMessage('Reading first set of bytes :');
BlockRead(myFile, byteArray, 6, count);

// Display the byte values read
for i := 1 to count do
ShowMessage(IntToStr(byteArray[i]));

// Now read one byte at a time to the end of the file
ShowMessage('Reading remaining bytes :');
while not Eof(myFile) do
begin
BlockRead(myFile, oneByte, 1); // Read and display one byte at a time
ShowMessage(IntToStr(oneByte));
end;

// Close the file for the last time
CloseFile(myFile);
end;
/////////end readwriteblock binary








//////////reverse text file
procedure reversetextfile();
var
fileData : TStringList;
saveLine : String;
lines, i : Integer;
begin
fileData := TStringList.Create; // Create the TSTringList object
fileData.LoadFromFile('Test.txt'); // Load from Testing.txt file

// Reverse the sequence of lines in the file
lines := fileData.Count;

for i := lines-1 downto (lines div 2) do
begin
saveLine := fileData[lines-i-1];
fileData[lines-i-1] := fileData[i];
fileData[i] := saveLine;
end;

// Now display the file
for i := 0 to lines-1 do
ShowMessage(fileData[i]);

fileData.SaveToFile('Test.txt'); // Save the reverse sequence file
end;
////////end reverse text file

next time i'll attack ado and socket
if you have any trick about that, i'm happy to learn
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