357mag

The Visual in Visual Basic or Visual C++ or Visual C# simply means you can make a Graphical Interface with it. You're working in a visual manner instead of in a console manner (although you can do that too).

No Visual C++ as it comes in Visual Studio and when it was available as a separate product in a box called Visual C++ 6. It was MFC which looked very difficult to monkey with or learn. Now we have WPF and WinForms so maybe it's not so bad. But I don't think Microsoft really wants programmers to use it. They are pushing Visual C#.

I need to convert a number (which I think defaults to a string) to an integer in C++ Builder: void __fastcall TForm1::Button1Click(TObject *Sender) { int x; int y; int sum; x = std::stoi (Edit1->Text); y = Edit2->Text; sum = x = y; Label3->Caption = "The sum is" + sum;

In order not to piss anyone off on the forum, I will change my code to the C++ Builder string type.

I've got a program where the user enters his first name in an Edit box. Then he presses the button entitled Show Message and I will show him a Welcome Message. I'm having some trouble with coding the first name. Builder says Could not find a match for string::basic(const string&). Here is what I have so far: #include <vcl.h> #pragma hdrstop #include "welcome_program.h" #include <iostream> #include <string> using namespace std; //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TFormWelcome *FormWelcome; //--------------------------------------------------------------------------- __fastcall TFormWelcome::TFormWelcome(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TFormWelcome::ButtonShowMessageClick(TObject *Sender) { string firstName = AnsiString(EditFirstName->Text); }

I got it going! This works: #include <vcl.h> #pragma hdrstop #include "welcome_program.h" #include <iostream> //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TFormWelcome *FormWelcome; //--------------------------------------------------------------------------- __fastcall TFormWelcome::TFormWelcome(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TFormWelcome::ButtonShowMessageClick(TObject *Sender) { AnsiString firstName = EditFirstName->Text; LabelMessage->Caption = "Welcome to C++ Programming " + firstName + "!"; }

I added Ansistring(sum) and it worked.

Well I think I got part of it going. y = Edit2->Text.ToInt(); I think that is okay, but the answer in the Label just says "is". I think I got the same problem going on. Pointer arithmetic or something. I'll have to mess with it.

I've got a simple Welcome Message program and when I click the Show Message button it prints a "Welcome to C++ Builder!" message in a label. Only thing that's not going quite right is I would like the text of the message to print in blue, not black. I've got the label selected and I'm going into the color property and choosing clNavy. But when I run the program the Welcome message still prints in black.

It works! Thank You So Much.

I've wondered if I should do this: EditPrompt->Text or this by adding some whitespace: EditPrompt -> Text How do you guys do it or is there a convention?

I can't post the code at the moment, but I wrote a program that inputs a number and then it determines if the number is odd or even. I used a if-else structure. At the end of the code I put and end(with a semi-colon), and immediately after that I put an end(with a period). The compiler complained. It said "expected a . but got a ; instead. I thought you were supposed to use begin and end(with a semi-colon) kind of like an opening brace and a closing brace in other languages. But I had to completely remove the end(with the semi-colon) to get rid of that error. I don't understand why. And then I had a semi-colon on the statement right before the else. Then I find out by reading that you don't do that either. No semi-colon there.

This code is the corrected version: var x: integer; begin Write('Enter an integer: '); ReadLn(x); if (x mod 2 = 0) then WriteLn('The number is even') else WriteLn('The number is odd'); WriteLn; Write('Press Enter to quit...'); ReadLn; end.

This code is the incorrect version. This is the version I first came up with: var x: integer; begin Write('Enter an integer: '); ReadLn(x); if (x mod 2 = 0) then WriteLn('The number is even'); else WriteLn('The number is odd'); WriteLn; Write('Press Enter to quit...'); ReadLn; end; end.

What are some of the ways I can code my console program to keep the console window open after it opens? I know in C++ I used to use getch().

I've got a program that asks the user to enter a value (in an Edit box) and then when he clicks on the Show Value button, the Label should say "The value of x is " plus whatever value he entered in the Edit box. But Delphi is complaining saying "x is not a valid integer value." I don't know what's wrong with my code but here is what I've got: var FormSimpleVariable: TFormSimpleVariable; x : integer; implementation {$R *.dfm} procedure TFormSimpleVariable.ButtonQuitClick(Sender: TObject); begin Application.Terminate; end; procedure TFormSimpleVariable.ButtonShowValueClick(Sender: TObject); begin x := StrToInt('x'); LabelResult.Caption := 'The value of x is ' + IntToStr(x); end; end.

So when your program is all completed as far as writing all the code, you put an end (with a period) at the end. If you are just denoting a code block, then you put and end (with a semicolon).

Yes I was about to post that I found a way using ReadLine. I'm a little confused about the two end keywords. It seems sometimes I see end with a semicolon and that is all. Other times I see end with a period. Other times I see both in a code snippet.

I don't recall adding those single quotes around x (like ('x')). Don't know what happened there. Mistakes and being human I guess.

My program prompts the user to enter a character (like 'A' for example). Then I'm trying to store it in a character variable. But C++ is telling me it can't cast from Unicode string to a character. How do I handle it? My code looks like this: char ch = 0; int chValue = 0; LabelPrompt -> Caption = "Enter a character: "; ch = static_cast<char>(EditCharacterEntry -> Text); The goal of this program is to print the Ascii code for the letter the user entered. Then it would show something like 'w' is 119. 'x' is 120.

Your first code example does not work. C++ Builder wrote an extremely long line complaining about something. It also said chValue is assigned a value that is never used. Your second code example worked though.

You guys are acting like jerks. I'm talking about a different piece of code now. If you can't or don't know how to be nice and respectful, then please go to bed. In C++ you can assign a value to a variable immediately after declaring it. Delphi would not let me do that. I had to assign the values to the variables further down underneath the begin keyword.

You guys are acting like jerks. I'm talking about a different piece of code now. If you can't or don't know how to be nice and respectful, then please go to bed.

How come you can't assign a value to a variable in the same section you declared it? You gotta assign the value underneath the begin keyword instead.

So I'm just getting started with Delphi and I went into Options -> Environment Options and under the Default Project list box I told it to save my files to D:\Delphi Programming Projects. In that folder I have two subfolders, one called Console Projects and the other called Windows Projects. I wrote a project today and when I was done I hit Save Project As... and it prompted me to give the unit file a name which I did and a project file a name which I did. And I directed Delphi to the exact folder (which is called Welcome Program) to save the files in. Problem is Delphi also save files and a Win32 folder in the Delphi Programming Projects folder. I need to save everything to the Welcome Program folder, so I don't have files scattered in the Delphi Programming Projects plus the Welcome Program folder too. I can understand why it did that because after all I told Delphi in Environment Options to use the D:\Delphi Programming Projects folder as a default directory. But isn't there a way to get Delphi to put everything in a subfolder? Like in my case the name of my program is Welcome Program. I want everything going into that subfolder. I've enclosed a screenshot.