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