progress bar

[acce55]

i need the code for a progress bar. Do you have a free win32 ebook?
i know one webpage but i cant get it to work.....for some reason it doesnt dispaly on the window...i make it visible and a child window and still nothing.....


heres the link to that
http://functionx.com/win32/controls/ProgressBars.htm

[Joeman]

I cant tell you why your code isn't working if I can't see it, but I suppose I can give you a working example.

#include <windows.h>
#include <commctrl.h>
/*  Declare Windows procedure  */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
/*  Make the class name into a global variable  */
char szClassName[ ] = "CodeBlocksWindowsApp";
int WINAPI WinMain (HINSTANCE hThisInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR lpszArgument,
                     int nCmdShow)
{
   InitCommonControls();
    HWND hwnd;               /* This is the handle for our window */
    MSG messages;            /* Here messages to the application are saved */
    WNDCLASSEX wincl;        /* Data structure for the windowclass */
    /* The Window structure */
    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */
    wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */
    wincl.cbSize = sizeof (WNDCLASSEX);
    /* Use default icon and mouse-pointer */
    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;                 /* No menu */
    wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */
    wincl.cbWndExtra = 0;                      /* structure or the window instance */
    /* Use Windows's default colour as the background of the window */
    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;
    /* Register the window class, and if it fails quit the program */
    if (!RegisterClassEx (&wincl))
        return 0;
    /* The class is registered, let's create the program*/
    hwnd = CreateWindowEx (
           0,                   /* Extended possibilites for variation */
           szClassName,         /* Classname */
           "Code::Blocks Template Windows App",       /* Title Text */
           WS_OVERLAPPEDWINDOW, /* default window */
           CW_USEDEFAULT,       /* Windows decides the position */
           CW_USEDEFAULT,       /* where the window ends up on the screen */
           544,                 /* The programs width */
           375,                 /* and height in pixels */
           HWND_DESKTOP,        /* The window is a child-window to desktop */
           NULL,                /* No menu */
           hThisInstance,       /* Program Instance handler */
           NULL                 /* No Window Creation data */
           );
    /* Make the window visible on the screen */
    ShowWindow (hwnd, nCmdShow);
   HWND ProgressBar_hwnd =  CreateWindowEx(0, PROGRESS_CLASS, "", WS_TABSTOP | WS_VISIBLE | WS_CHILD, 0, 0, 100, 20, hwnd, NULL, GetModuleHandle(NULL), NULL);
    /* Run the message loop. It will run until GetMessage() returns 0 */
    while (GetMessage (&messages, NULL, 0, 0))
    {
        /* Translate virtual-key messages into character messages */
        TranslateMessage(&messages);
        /* Send message to WindowProcedure */
        DispatchMessage(&messages);
    }
    /* The program return-value is 0 - The value that PostQuitMessage() gave */
    return messages.wParam;
}
 
/*  This function is called by the Windows function DispatchMessage()  */
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)                  /* handle the messages */
    {
        case WM_DESTROY:
            PostQuitMessage (0);       /* send a WM_QUIT to the message queue */
            break;
        default:                      /* for messages that we don't deal with */
            return DefWindowProc (hwnd, message, wParam, lParam);
    }
    return 0;
}

I used the main template from code::blocks for win32, so it is heavily documented from that. I highlighted the new code. Dont' forget to include the lib comctl32 to your project

[minkoko]

#include <commctrl.h>

this file is where the source code

[Hammadi dali]

This header file is already defined in the SDK, and you have juste to call it in the headers list

[BobS0327]

i need the code for a progress bar. Do you have a free win32 ebook?
i know one webpage but i cant get it to work.....for some reason it doesnt dispaly on the window...i make it visible and a child window and still nothing.....


heres the link to that
http://functionx.com/win32/controls/ProgressBars.htm

Here is the fully functional equivalent of the example found on that web page..

File: Resource.h

//{{NO_DEPENDENCIES}}
// Microsoft Developer Studio generated include file.
// Used by Example.rc
//
#define IDD_CONTROLS_DLG                101

// Next default values for new objects
// 
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE        102
#define _APS_NEXT_COMMAND_VALUE         40001
#define _APS_NEXT_CONTROL_VALUE         1000
#define _APS_NEXT_SYMED_VALUE           101
#endif
#endif

File: Example.rc

//Microsoft Developer Studio generated resource script.
//
#include "resource.h"

#define APSTUDIO_READONLY_SYMBOLS
/////////////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 2 resource.
//
#include "afxres.h"

/////////////////////////////////////////////////////////////////////////////
#undef APSTUDIO_READONLY_SYMBOLS

/////////////////////////////////////////////////////////////////////////////
// English (U.S.) resources

#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
#ifdef _WIN32
LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
#pragma code_page(1252)
#endif //_WIN32

/////////////////////////////////////////////////////////////////////////////
//
// Dialog
//

IDD_CONTROLS_DLG DIALOG DISCARDABLE  200, 180, 186, 90
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "Progress Bar Example"
FONT 8, "MS Sans Serif"
BEGIN
    DEFPUSHBUTTON   "OK",IDOK,129,7,50,14
    PUSHBUTTON      "Cancel",IDCANCEL,129,24,50,14
END


/////////////////////////////////////////////////////////////////////////////
//
// DESIGNINFO
//

#ifdef APSTUDIO_INVOKED
GUIDELINES DESIGNINFO DISCARDABLE 
BEGIN
    IDD_CONTROLS_DLG, DIALOG
    BEGIN
        LEFTMARGIN, 7
        RIGHTMARGIN, 179
        TOPMARGIN, 7
        BOTTOMMARGIN, 83
    END
END
#endif    // APSTUDIO_INVOKED


#ifdef APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////
//
// TEXTINCLUDE
//

1 TEXTINCLUDE DISCARDABLE 
BEGIN
    "resource.h\0"
END

2 TEXTINCLUDE DISCARDABLE 
BEGIN
    "#include ""afxres.h""\r\n"
    "\0"
END

3 TEXTINCLUDE DISCARDABLE 
BEGIN
    "\r\n"
    "\0"
END

#endif    // APSTUDIO_INVOKED

#endif    // English (U.S.) resources
/////////////////////////////////////////////////////////////////////////////



#ifndef APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 3 resource.
//


/////////////////////////////////////////////////////////////////////////////
#endif    // not APSTUDIO_INVOKED

File: Example.cpp

#pragma comment ( lib, "user32.lib" ) 
#pragma comment ( lib, "comctl32.lib" ) 

#include <windows.h>
#include <commctrl.h>
#include "Resource.h"

//---------------------------------------------------------------------------
HWND hWnd;
HWND hProgressWindow;
HINSTANCE hInst;
LRESULT CALLBACK DlgProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
//---------------------------------------------------------------------------
INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    hInst = hInstance;

    DialogBox(hInst, MAKEINTRESOURCE(IDD_CONTROLS_DLG),
        hWnd, reinterpret_cast<DLGPROC>(DlgProc));

    return FALSE;
}
//---------------------------------------------------------------------------

LRESULT CALLBACK DlgProc(HWND hWndDlg, UINT Msg,
    WPARAM wParam, LPARAM lParam)
{
    INT iIndex =0;
    INITCOMMONCONTROLSEX InitCtrlEx;

    InitCtrlEx.dwSize = sizeof(INITCOMMONCONTROLSEX);
    InitCtrlEx.dwICC  = ICC_PROGRESS_CLASS;
    InitCommonControlsEx(&InitCtrlEx);

    switch(Msg)
    {
        case WM_INITDIALOG:
            hProgressWindow =   CreateWindowEx(0, PROGRESS_CLASS, NULL,
                WS_CHILD | WS_VISIBLE | PBS_SMOOTH,
                5, 80, 260, 17,
                hWndDlg, NULL, hInst, NULL);
            SendMessage (hProgressWindow, PBM_SETRANGE, 0, MAKELPARAM (0, 100));
            SendMessage(hProgressWindow, PBM_SETSTEP, 10, 0L); 
            return TRUE;
        case WM_COMMAND:
            switch(wParam)
            {
                case IDOK:
                    SendMessage (hProgressWindow, PBM_SETPOS, (WPARAM) 0, 0);
                    for(iIndex = 0; iIndex <= 100; iIndex+=10)
                    {
                        SendMessage(hProgressWindow, PBM_SETPOS, (WPARAM)iIndex ,0L); 
                        Sleep(500);
                    }
                    return TRUE;
                case IDCANCEL:
                    EndDialog(hWndDlg, 0);
                    return TRUE;
            }
            break;
    }
    return FALSE;
}

Build as follows:

rc.exe example.rc
cl.exe example.cpp example.res