Win32 Main Dialog

These tutorials focus mainly on OpenGL, Win32 programming and the ODE physics engine. OpenGL has moved on to great heights and I don't cover the newest features but cover all of the basic concepts you will need with working example programs.

Working with the Win32 API is a great way to get to the heart of Windows and is just as relevant today as ever before. Whereas ODE has been marginalized as hardware accelerated physics becomes more common.

Games and graphics utilities can be made quickly and easily using game engines like Unity so this and Linux development in general will be the focus of my next tutorials.

Win32 Tutorials

Source Code for Dialog Main Window

Listing of resource.h

#define IDI_ICON 100 #define IDD_DIALOG 101 #define IDC_DLG_TEXT 102

Listing of resource.rc

#include <windows.h> #include "resource.h" IDI_ICON ICON "icon.ico" DIALOG_NAME DIALOG 0, 0, 179, 61 STYLE DS_SYSMODAL | DS_MODALFRAME | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU CAPTION "Dialog Box as main window" LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL FONT 8, "MS Sans Serif" { CONTROL "Enter some text in the edit control to test.", -1, "STATIC", SS_CENTER | WS_CHILD | WS_VISIBLE, 8, 6, 129, 11 CONTROL "Default Text", IDC_DLG_TEXT, "EDIT", ES_LEFT | ES_AUTOHSCROLL | WS_CHILD | WS_VISIBLE | WS_BORDER | WS_TABSTOP, 10, 20, 158, 12 CONTROL "&Ok", IDOK, "BUTTON", BS_PUSHBUTTON | BS_CENTER | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 37, 39, 50, 14 CONTROL "&Cancel", IDCANCEL, "BUTTON", BS_PUSHBUTTON | BS_CENTER | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 92, 39, 50, 14 }

Listing of main.cpp


// Win32 Tutorial (Dialog Box as main window)

// Alan Baylis 2004



#include <windows.h>

#include "resource.h"



#define BUFFER_SIZE 256



char szText[BUFFER_SIZE];

HBRUSH g_hbrBackground = CreateSolidBrush(RGB(255, 255, 255));

HINSTANCE hInst;



BOOL CALLBACK InitProc( HWND hDlgWnd,

                        UINT Message, 

                        WPARAM wParam, 

                        LPARAM lParam )

{

    switch(Message)

    {

        case WM_CTLCOLORDLG:

            return (LONG)g_hbrBackground;



        case WM_CTLCOLORSTATIC:

        {

            HDC hdcStatic = (HDC)wParam;

            SetTextColor(hdcStatic, RGB(0, 0, 0));

            SetBkMode(hdcStatic, TRANSPARENT);

            return (LONG)g_hbrBackground;

        }

        break;





        case WM_INITDIALOG:

        {

            RECT DesktopRect;

            RECT DialogRect;

            GetWindowRect(GetDesktopWindow(), &DesktopRect);

            GetWindowRect(hDlgWnd, &DialogRect);

            SetWindowPos( hDlgWnd, 

                          HWND_TOP, 

                          (DesktopRect.right - DialogRect.right) / 2,

                          (DesktopRect.bottom - DialogRect.bottom) / 2,

                          0,0, SWP_NOSIZE );

                          

            SendMessage(hDlgWnd, WM_SETICON, ICON_SMALL, (LPARAM)LoadIcon(hInst, MAKEINTRESOURCE(IDI_ICON)));

            SendMessage(hDlgWnd, WM_SETICON, ICON_BIG, (LPARAM)LoadIcon(hInst, MAKEINTRESOURCE(IDI_ICON)));



            SendDlgItemMessage(hDlgWnd, IDC_DLG_TEXT, EM_SETLIMITTEXT, (WPARAM)BUFFER_SIZE - 1, (LPARAM)0);

            SetDlgItemText(hDlgWnd, IDC_DLG_TEXT, "Enter Text");

            return TRUE;

        }

        break;



        case WM_COMMAND:

            switch(LOWORD(wParam))

            {

                case IDCANCEL:

                    ExitProcess(0);

                    return TRUE;

                break;



                case IDOK:

                    MessageBox(hDlgWnd, "Ok", "Success", MB_OK);

                    GetDlgItemText(hDlgWnd, IDC_DLG_TEXT, szText, BUFFER_SIZE);                    

                    ExitProcess(0);

                    return TRUE;

                break;

            }

        break;

    }

    return FALSE;

}



INT WINAPI WinMain( HINSTANCE  hInstance,

                    HINSTANCE  hPrevInstance,

                    LPSTR      lpCmdLine,

                    INT        nCmdShow )

{

    hInst = hInstance;



    HWND hWnd = CreateDialog( hInstance,

                              (LPCTSTR)"DIALOG_NAME",

                              NULL,

                              (DLGPROC)InitProc );



    MSG    Msg;



    while(GetMessage(&Msg, NULL,0,0) == TRUE)

    {

        if(!IsDialogMessage(hWnd,&Msg))

        {

            TranslateMessage(&Msg);

            DispatchMessage(&Msg);

        }

    }

    return Msg.wParam;

}