beginner learn c++ windows application

hi, I want to learn C++, make windows application, but is it C++ only DOS application?

I known VB 6.0 is simple use GDI layout, is it C++ also provide that GDI?


first, how to choose C++ program? is it Devx or Microsoft, C++Builder?

and I want to simple use GDI, what program focus beginner?

and can give me sample, I want to build window application
as same as VB6,
make TextBox (two)
make commandbuttom (one)

Command1:
msgbox (Val(Text1) + val(Text2))



thanks~!

Quote:

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Originally Posted by fookma

hi, I want to learn C++, make windows application, but is it C++ only DOS application?
If you by DOS application (which is a family of operating systems) mean a console application, then no, C++ is not limited to console applications.

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Quote:

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Originally Posted by fookma

I known VB 6.0 is simple use GDI layout, is it C++ also provide that GDI?

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The Win32 API is what provides VB6 (and any other language) with the ability to display graphical windows, buttons, lists.. you name it.
To do the same in C++, you would make use of the Win32 API.

Quote:

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Originally Posted by fookma

first, how to choose C++ program? is it Devx or Microsoft, C++Builder?

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The two most common compilers being used nowadays is Microsoft Visual C++ and GCC. If you want to use GCC for windows development, you'd need to look up MinGW.
I believe Dev-C++ is a bit dated by now.

Quote:

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Originally Posted by fookma

and I want to simple use GDI, what program focus beginner?

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I do not really understand what this means, can you elaborate?

Quote:

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Originally Posted by fookma

and can give me sample, I want to build window application
as same as VB6,
make TextBox (two)
make commandbuttom (one)

Command1:
msgbox (Val(Text1) + val(Text2))

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It takes a whole lot of more work to do this without the use of a framework of some sort. I threw this together for you, here you go:

Code:

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#include <iostream>
#include <Windows.h>
#include <tchar.h>

int setupWindow(HINSTANCE, int);
int setupControls(HINSTANCE);
void calculateResult();

HWND hwnd;
HWND hwndText1;
HWND hwndText2;
HWND hwndButton;

LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg,WPARAM wParam, LPARAM lParam)
{
        switch (uMsg)
        {
        case WM_DESTROY:
                PostQuitMessage(0);
                break;
        case WM_COMMAND:
                if(lParam == (LPARAM)hwndButton)
                {
                        calculateResult();
                }
                break;
        default:
                return DefWindowProc(hwnd, uMsg, wParam, lParam);
        }
        return 0;
}


int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,LPSTR lpCmdLine, int nCmdShow)
{
        if(!setupWindow(hInstance, nCmdShow))
        {
                return -1;
        }

        if(!setupControls(hInstance))
        {
                return -1;
        }

        // Message loop
        MSG msg;

        while(GetMessage(&msg, hwnd, 0, 0) > 0)
        {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
        }
}

int setupWindow(HINSTANCE hInstance, int nCmdShow)
{
        WNDCLASSEX wndclass;
        ZeroMemory(&wndclass, sizeof(wndclass));
        wndclass.style = CS_HREDRAW | CS_VREDRAW;
        wndclass.cbSize = sizeof(WNDCLASSEX);
        wndclass.hInstance = hInstance;
        wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
        wndclass.lpszClassName = L"vbfsampleclass";
        wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
        wndclass.lpfnWndProc = WndProc;
        if(!RegisterClassEx(&wndclass))
        {
                DWORD err = GetLastError();
                std::cerr << "RegisterClassEx failed with error code " << GetLastError << std::endl;
                return 0;
        }

        hwnd = CreateWindowEx(
                0,
                L"vbfsampleclass",
                L"VBForums Win32 sample",
                WS_OVERLAPPEDWINDOW | WS_VISIBLE,
                CW_USEDEFAULT,
                CW_USEDEFAULT,
                CW_USEDEFAULT,
                CW_USEDEFAULT,
                NULL,
                NULL,
                hInstance,
                NULL);

        if(hwnd == NULL)
        {
                std::cerr << "CreateWindowEx failed with error code " << GetLastError() << std::endl;
                return 0;
        }

        ShowWindow(hwnd, nCmdShow);
        UpdateWindow(hwnd);
        return 1;
}

int setupControls(HINSTANCE hInstance)
{
        // Textbox 1
        hwndText1 = CreateWindowEx(
                0,
                L"EDIT",
                L"3",
                ES_NUMBER | WS_CHILD | WS_VISIBLE | WS_BORDER,
                16,
                24,
                100,
                24,
                hwnd,
                (HMENU)101,
                hInstance,
                NULL);
        if(hwndText1 == NULL)
        {
                std::cerr << "CreateWindowEx failed with error code " << GetLastError() << std::endl;
                return 0;
        }

        // Textbox 2
        hwndText2 = CreateWindowEx(
                0,
                L"EDIT",
                L"5",
                ES_NUMBER | WS_CHILD | WS_VISIBLE | WS_BORDER,
                16,
                60,
                100,
                24,
                hwnd,
                (HMENU)101,
                hInstance,
                NULL);
        if(hwndText2 == NULL)
        {
                std::cerr << "CreateWindowEx failed with error code " << GetLastError() << std::endl;
                return 0;
        }

        // Button 1
        hwndButton = CreateWindowEx(
                0,
                L"BUTTON",
                L"Calculate!",
                BS_TEXT | BS_VCENTER | WS_CHILD | WS_VISIBLE | WS_BORDER,
                16,
                96,
                100,
                24,
                hwnd,
                0,
                hInstance,
                NULL);

        if(hwndButton == NULL)
        {
                std::cerr << "CreateWindowEx failed with error code " << GetLastError() << std::endl;
                return 0;
        }

        ShowWindow(hwndButton, SW_SHOW);

        return 1;
}

void calculateResult()
{
        TCHAR strValue1[64];
        TCHAR strValue2[64];
        TCHAR strResult[64];
        int intValue1;
        int intValue2;
        GetWindowText(hwndText1, strValue1, 64);
        GetWindowText(hwndText2, strValue2, 64);

       
        intValue1 = _tstoi(strValue1);
        intValue2 = _tstoi(strValue2);


        _itot(intValue1 + intValue2, strResult, 10);
        SetWindowText(hwndButton, strResult);
}

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With all this said;
I am willing to bet that you had hoped it to be more simple than this. Without any framework to help you, it gets complicated quick. I would suggest you look into frameworks like Qt to make things easier for you.

thanks, but is it same VB6, Icons for the main controls, drag-and-drop tool (textbox, Label, CommandButtom, List,...) to empty form1?

if need that "drag-and-drop tool to....", Devx provide it? or which is provide this simple GUI applications?

thanks!


http://en.wikipedia.org/wiki/Visual_Basic

There are a number of tools that supplies a graphical "drag-and-drop" editor. One being Qt that I mentioned in by previous post. Theres also C++/CLI, but I would personally say that Qt is a better option.