Programming Forums > Application Development > C++

The Dark · Oct 27th, 2005, 7:20 PM

Where are you getting hwndPB from? In your previous code it was never initialised.

nnxion · Oct 28th, 2005, 3:46 AM

Well I can't test it here, but try something like: (don't forget to inlude the lib)

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

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

/* Global var */

char * className = "ProgressbarApp";
char * captionName = "Progressbar Application";

HINSTANCE hInstanceGlobal;

/* Function prototypes */

int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int );
BOOL InitApplication( HINSTANCE );
BOOL InitInstance( HINSTANCE, int );
LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM );

int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
    MSG msg;

    hInstanceGlobal= hInstance;

    if (!InitApplication(hinstance))
        return FALSE;

    if (!InitInstance(hinstance, nCmdShow))
        return FALSE;

    while((GetMessage(&msg, NULL, 0, 0)) > 0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}

/* Initialise Application */

BOOL InitApplication( HINSTANCE hinstance )
{

	WNDCLASS WndClass;
	WndClass.style = 0;
	WndClass.cbClsExtra = 0;
	WndClass.cbWndExtra = 0;
	WndClass.lpfnWndProc = WndProc;
	WndClass.hInstance = hInstance;
	WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
	WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
	WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	WndClass.lpszMenuName = NULL;
	WndClass.lpszClassName = className;

	return RegisterClass(&WndClass);
}

BOOL InitInstance( HINSTANCE hInstance, int nCmdShow )
{
    HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);

    if(!hWnd)
		return FALSE;

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);
    return TRUE;
}

LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
	switch(msg)
	{
		case WM_CLOSE:
			DestroyWindow(hwnd);
			return 0;

		case WM_DESTROY:
			PostQuitMessage(0);
			return 0;

		case WM_CREATE:
			void OnWmCreate(hInstanceGlobal, hwnd);
			break;

		case WM_COMMAND:
			if (HIWORD(wParam) == BN_CLICKED)
			{
				if(LOWORD(wParam) == 1)
				{
					OnButtonClicked();
				}
			}
			break;

		default:
            return DefWindowProc(hwnd, message, wParam, lParam);
	}
}

void OnWmCreate( HINSTANCE hInstance, HWND hwnd )
{
	HWND hButton;
	RECT rcClient;
	HWND hwndPB;
	hButton = CreateWindow("BUTTON", "Increment", WS_CHILD | WS_VISIBLE | BS_PUSBUTTON, 100, 100, 100, 100, hwnd, (HMENU) 1, hInstanceGlobal, NULL);
	InitCommonControls();
	GetClientRect(hwndParent, &rcClient);
	hwndPB = CreateWindowEx(0, PROGRESS_CLASS, (LPCTSTR) NULL, WS_CHILD | WS_VISIBLE,
	rcClient.left, rcClient.bottom, rcClient.right - rcClient, rcClient.top - rcClient.bottom,
	hwnd, (HMENU) 0, hInstance, NULL);
	SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100));
    SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0);
	DestroyWindow(hwndPB);
}

void OnButtonClicked()
{
    SendMessage(hwndPB, PBM_STEPIT, 0, 0);
}

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

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

/* Global var */

char * className = "ProgressbarApp";
char * captionName = "Progressbar Application";

HINSTANCE hInstanceGlobal;

/* Function prototypes */

int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int );
BOOL InitApplication( HINSTANCE );
BOOL InitInstance( HINSTANCE, int );
LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM );

int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
    MSG msg;

    hInstanceGlobal= hInstance;

    if (!InitApplication(hinstance))
        return FALSE;

    if (!InitInstance(hinstance, nCmdShow))
        return FALSE;

    while((GetMessage(&msg, NULL, 0, 0)) > 0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}

/* Initialise Application */

BOOL InitApplication( HINSTANCE hinstance )
{

	WNDCLASS WndClass;
	WndClass.style = 0;
	WndClass.cbClsExtra = 0;
	WndClass.cbWndExtra = 0;
	WndClass.lpfnWndProc = WndProc;
	WndClass.hInstance = hInstance;
	WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
	WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
	WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	WndClass.lpszMenuName = NULL;
	WndClass.lpszClassName = className;

	return RegisterClass(&WndClass);
}

BOOL InitInstance( HINSTANCE hInstance, int nCmdShow )
{
    HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);

    if(!hWnd)
		return FALSE;

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);
    return TRUE;
}

LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
	switch(msg)
	{
		case WM_CLOSE:
			DestroyWindow(hwnd);
			return 0;

		case WM_DESTROY:
			PostQuitMessage(0);
			return 0;

		case WM_CREATE:
			void OnWmCreate(hInstanceGlobal, hwnd);
			break;

		case WM_COMMAND:
			if (HIWORD(wParam) == BN_CLICKED)
			{
				if(LOWORD(wParam) == 1)
				{
					OnButtonClicked();
				}
			}
			break;

		default:
            return DefWindowProc(hwnd, message, wParam, lParam);
	}
}

void OnWmCreate( HINSTANCE hInstance, HWND hwnd )
{
	HWND hButton;
	RECT rcClient;
	HWND hwndPB;
	hButton = CreateWindow("BUTTON", "Increment", WS_CHILD | WS_VISIBLE | BS_PUSBUTTON, 100, 100, 100, 100, hwnd, (HMENU) 1, hInstanceGlobal, NULL);
	InitCommonControls();
	GetClientRect(hwndParent, &rcClient);
	hwndPB = CreateWindowEx(0, PROGRESS_CLASS, (LPCTSTR) NULL, WS_CHILD | WS_VISIBLE,
	rcClient.left, rcClient.bottom, rcClient.right - rcClient, rcClient.top - rcClient.bottom,
	hwnd, (HMENU) 0, hInstance, NULL);
	SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100));
    SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0);
	DestroyWindow(hwndPB);
}

void OnButtonClicked()
{
    SendMessage(hwndPB, PBM_STEPIT, 0, 0);
}

Got to run now, I'll help you later if it doesnt work

nnxion · Oct 28th, 2005, 6:15 AM

Sorry all wrong (comes from doing all by heart, without compiler), here is a good version:

(Toggle Plain Text)

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

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

/* Global var */

char * className = "ProgressbarApp";
char * captionName = "Progressbar Application";

HWND hwndPB;

HINSTANCE hInstanceGlobal;

/* Function prototypes */

int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int );
BOOL InitApplication( HINSTANCE );
BOOL InitInstance( HINSTANCE, int );
LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM );

int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
    MSG msg;

    hInstanceGlobal= hInstance;

    if (!InitApplication(hInstance))
        return FALSE;

    if (!InitInstance(hInstance, nCmdShow))
        return FALSE;

    while((GetMessage(&msg, NULL, 0, 0)) > 0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return (int)msg.wParam;
}

/* Initialise Application */

BOOL InitApplication( HINSTANCE hInstance )
{

	WNDCLASS WndClass;
	WndClass.style = 0;
	WndClass.cbClsExtra = 0;
	WndClass.cbWndExtra = 0;
	WndClass.lpfnWndProc = WndProc;
	WndClass.hInstance = hInstance;
	WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
	WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
	WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	WndClass.lpszMenuName = NULL;
	WndClass.lpszClassName = className;

	return RegisterClass(&WndClass);
}

BOOL InitInstance( HINSTANCE hInstance, int nCmdShow )
{
    HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);

    if(!hWnd)
		return FALSE;

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);
    return TRUE;
}

LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
	switch(message)
	{
		case WM_CLOSE:
			DestroyWindow(hwnd);
			return 0;

		case WM_DESTROY:
			PostQuitMessage(0);
			return 0;

		case WM_CREATE:
			HWND hButton;
			RECT rcClient;

			int cyVScroll;
			hButton = CreateWindow("BUTTON", "Increment", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, 100, 100, 100, 50, hwnd, (HMENU) 1, hInstanceGlobal, NULL);
			InitCommonControls();
			GetClientRect(hwnd, &rcClient);
			cyVScroll = GetSystemMetrics(SM_CYVSCROLL); 
			hwndPB = CreateWindowEx(0, PROGRESS_CLASS,(LPCTSTR) NULL, WS_CHILD | WS_VISIBLE,
			rcClient.left, rcClient.bottom - cyVScroll, rcClient.right, cyVScroll, 
			hwnd, (HMENU) 0, hInstanceGlobal, NULL); 

			SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100));
			SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0);
			break;

		case WM_COMMAND:
			if (HIWORD(wParam) == BN_CLICKED)
			{
				if(LOWORD(wParam) == 1)
				{
					static int counter = 0;
					if(!(counter > 4))
					{
						SendMessage(hwndPB, PBM_STEPIT, 0, 0);
						counter++;
					}
					else
					{
                        DestroyWindow(hwndPB);
					}

				}
			}
			break;

		default:
            return DefWindowProc(hwnd, message, wParam, lParam);
	}
	return 0;
}

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

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

/* Global var */

char * className = "ProgressbarApp";
char * captionName = "Progressbar Application";

HWND hwndPB;

HINSTANCE hInstanceGlobal;

/* Function prototypes */

int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int );
BOOL InitApplication( HINSTANCE );
BOOL InitInstance( HINSTANCE, int );
LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM );

int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
    MSG msg;

    hInstanceGlobal= hInstance;

    if (!InitApplication(hInstance))
        return FALSE;

    if (!InitInstance(hInstance, nCmdShow))
        return FALSE;

    while((GetMessage(&msg, NULL, 0, 0)) > 0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return (int)msg.wParam;
}

/* Initialise Application */

BOOL InitApplication( HINSTANCE hInstance )
{

	WNDCLASS WndClass;
	WndClass.style = 0;
	WndClass.cbClsExtra = 0;
	WndClass.cbWndExtra = 0;
	WndClass.lpfnWndProc = WndProc;
	WndClass.hInstance = hInstance;
	WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
	WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
	WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	WndClass.lpszMenuName = NULL;
	WndClass.lpszClassName = className;

	return RegisterClass(&WndClass);
}

BOOL InitInstance( HINSTANCE hInstance, int nCmdShow )
{
    HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);

    if(!hWnd)
		return FALSE;

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);
    return TRUE;
}

LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
{
	switch(message)
	{
		case WM_CLOSE:
			DestroyWindow(hwnd);
			return 0;

		case WM_DESTROY:
			PostQuitMessage(0);
			return 0;

		case WM_CREATE:
			HWND hButton;
			RECT rcClient;

			int cyVScroll;
			hButton = CreateWindow("BUTTON", "Increment", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, 100, 100, 100, 50, hwnd, (HMENU) 1, hInstanceGlobal, NULL);
			InitCommonControls();
			GetClientRect(hwnd, &rcClient);
			cyVScroll = GetSystemMetrics(SM_CYVSCROLL); 
			hwndPB = CreateWindowEx(0, PROGRESS_CLASS,(LPCTSTR) NULL, WS_CHILD | WS_VISIBLE,
			rcClient.left, rcClient.bottom - cyVScroll, rcClient.right, cyVScroll, 
			hwnd, (HMENU) 0, hInstanceGlobal, NULL); 

			SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100));
			SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0);
			break;

		case WM_COMMAND:
			if (HIWORD(wParam) == BN_CLICKED)
			{
				if(LOWORD(wParam) == 1)
				{
					static int counter = 0;
					if(!(counter > 4))
					{
						SendMessage(hwndPB, PBM_STEPIT, 0, 0);
						counter++;
					}
					else
					{
                        DestroyWindow(hwndPB);
					}

				}
			}
			break;

		default:
            return DefWindowProc(hwnd, message, wParam, lParam);
	}
	return 0;
}

badbasser98 · Oct 28th, 2005, 7:29 AM

(Toggle Plain Text)

[Linker error] undefined reference to `InitCommonControls@0'

I got this message before one some code that I wrote that was exactly like an example that I saw, except altered for the ranges, variables that I need in my prog. Bug in Dev-C++? I have version 4.9.9.2

Thanks for the help nnxion,
-BB98

nnxion · Oct 28th, 2005, 11:56 AM

Quote:

Originally Posted by The Dark

InitCommonControls is in comctl32.lib, so you need to add that library to your project or linker line.

This is what you need to do. I don't have Dev-cpp but you should add the file to your resources.

lectricpharaoh · Oct 29th, 2005, 9:53 AM

Quote:

Originally Posted by nnxion

Go to some college or university, ask them if they have can get really cheap copies of programs, ask him if he can get one for you, and bam! You have yourself a copy of a legal VC++ 2003 cd for just 20 bucks

Haha, I was thinking the same thing. I got VS.NET 2003, Project 2003, Visio 2003, and uhm.. WinXP Pro through my college, and the shipping cost dwarfed the actual cost of the software.

Hmm. My school has recently changed things around, and now my campus email is different, and I've started to get new emails from the MSDN's 'Academic Alliance' program; I wonder if this means I can get additional copies of the software. You know, in case I run out of 'activations' or something.

lectricpharaoh · Oct 29th, 2005, 10:01 AM

Quote:

Originally Posted by badbasser98

(Toggle Plain Text)

[Linker error] undefined reference to `InitCommonControls@0'

I got this message before one some code that I wrote that was exactly like an example that I saw, except altered for the ranges, variables that I need in my prog. Bug in Dev-C++? I have version 4.9.9.2

Thanks for the help nnxion,
-BB98

See if you can track down a local copy of the Win32 API reference. You can also use MSDN or the online help in VC++. There should be a listing of requirements for any classes, functions, and/or constants you want to use, including what header and library files you need, as well as what OS (for example, something might work under Win2000 but not under Win98). If you're compiling under VC++, just use whatever libs they say to use, but if using DevC++, you'll have to use the same library name, only with a '.a' extension (has to do with MinGW being a GNU-based compiler). Go to Project -> Project Options, hit the 'Parameters' tab, and under the 'Linker' list box, you'll see an 'Add Library or Object' button. You should be able to find your way from there.

badbasser98 · Oct 31st, 2005, 7:17 AM

I'll give it a try, thanks

-BB98

badbasser98 · Nov 1st, 2005, 9:23 AM

Adding that library worked, let me try that in my program.

Thanks for the help

-BB98

badbasser98 · Nov 1st, 2005, 1:40 PM

Well now I have got the progress bar to show, but it will not increment... The program actually does what it is supposed to do, except the user does not get any notification that it has done anything. Obviously, I would like the progress bar to increment, as well as some text to be displayed after each file is removed (or attempted to be removed, if it does not exist). You can find the code that I want to do this in a previous post (the one that starts with "case WM_COMMAND:" in the code field.) Is it possible to do what I am asking in that area of the code? or probably a different way to go about it...

Thanks for the help, you guys have been great. Without your help this would have been a very long, drawn out, frustrating process.

-BB98

Oct 28th, 2005, 3:46 AM	#32
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	Well I can't test it here, but try something like: (don't forget to inlude the lib) (Toggle Plain Text) #include <windows.h> #include <commctrl.h> LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); /* Global var / char className = "ProgressbarApp"; char * captionName = "Progressbar Application"; HINSTANCE hInstanceGlobal; /* Function prototypes / int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int ); BOOL InitApplication( HINSTANCE ); BOOL InitInstance( HINSTANCE, int ); LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM ); int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ) { MSG msg; hInstanceGlobal= hInstance; if (!InitApplication(hinstance)) return FALSE; if (!InitInstance(hinstance, nCmdShow)) return FALSE; while((GetMessage(&msg, NULL, 0, 0)) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } / Initialise Application / BOOL InitApplication( HINSTANCE hinstance ) { WNDCLASS WndClass; WndClass.style = 0; WndClass.cbClsExtra = 0; WndClass.cbWndExtra = 0; WndClass.lpfnWndProc = WndProc; WndClass.hInstance = hInstance; WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1); WndClass.hCursor = LoadCursor(NULL, IDC_ARROW); WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION); WndClass.lpszMenuName = NULL; WndClass.lpszClassName = className; return RegisterClass(&WndClass); } BOOL InitInstance( HINSTANCE hInstance, int nCmdShow ) { HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); if(!hWnd) return FALSE; ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam ) { switch(msg) { case WM_CLOSE: DestroyWindow(hwnd); return 0; case WM_DESTROY: PostQuitMessage(0); return 0; case WM_CREATE: void OnWmCreate(hInstanceGlobal, hwnd); break; case WM_COMMAND: if (HIWORD(wParam) == BN_CLICKED) { if(LOWORD(wParam) == 1) { OnButtonClicked(); } } break; default: return DefWindowProc(hwnd, message, wParam, lParam); } } void OnWmCreate( HINSTANCE hInstance, HWND hwnd ) { HWND hButton; RECT rcClient; HWND hwndPB; hButton = CreateWindow("BUTTON", "Increment", WS_CHILD \| WS_VISIBLE \| BS_PUSBUTTON, 100, 100, 100, 100, hwnd, (HMENU) 1, hInstanceGlobal, NULL); InitCommonControls(); GetClientRect(hwndParent, &rcClient); hwndPB = CreateWindowEx(0, PROGRESS_CLASS, (LPCTSTR) NULL, WS_CHILD \| WS_VISIBLE, rcClient.left, rcClient.bottom, rcClient.right - rcClient, rcClient.top - rcClient.bottom, hwnd, (HMENU) 0, hInstance, NULL); SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100)); SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0); DestroyWindow(hwndPB); } void OnButtonClicked() { SendMessage(hwndPB, PBM_STEPIT, 0, 0); } #include <windows.h> #include <commctrl.h> LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); / Global var / char className = "ProgressbarApp"; char * captionName = "Progressbar Application"; HINSTANCE hInstanceGlobal; /* Function prototypes / int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int ); BOOL InitApplication( HINSTANCE ); BOOL InitInstance( HINSTANCE, int ); LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM ); int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ) { MSG msg; hInstanceGlobal= hInstance; if (!InitApplication(hinstance)) return FALSE; if (!InitInstance(hinstance, nCmdShow)) return FALSE; while((GetMessage(&msg, NULL, 0, 0)) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } / Initialise Application */ BOOL InitApplication( HINSTANCE hinstance ) { WNDCLASS WndClass; WndClass.style = 0; WndClass.cbClsExtra = 0; WndClass.cbWndExtra = 0; WndClass.lpfnWndProc = WndProc; WndClass.hInstance = hInstance; WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1); WndClass.hCursor = LoadCursor(NULL, IDC_ARROW); WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION); WndClass.lpszMenuName = NULL; WndClass.lpszClassName = className; return RegisterClass(&WndClass); } BOOL InitInstance( HINSTANCE hInstance, int nCmdShow ) { HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); if(!hWnd) return FALSE; ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam ) { switch(msg) { case WM_CLOSE: DestroyWindow(hwnd); return 0; case WM_DESTROY: PostQuitMessage(0); return 0; case WM_CREATE: void OnWmCreate(hInstanceGlobal, hwnd); break; case WM_COMMAND: if (HIWORD(wParam) == BN_CLICKED) { if(LOWORD(wParam) == 1) { OnButtonClicked(); } } break; default: return DefWindowProc(hwnd, message, wParam, lParam); } } void OnWmCreate( HINSTANCE hInstance, HWND hwnd ) { HWND hButton; RECT rcClient; HWND hwndPB; hButton = CreateWindow("BUTTON", "Increment", WS_CHILD \| WS_VISIBLE \| BS_PUSBUTTON, 100, 100, 100, 100, hwnd, (HMENU) 1, hInstanceGlobal, NULL); InitCommonControls(); GetClientRect(hwndParent, &rcClient); hwndPB = CreateWindowEx(0, PROGRESS_CLASS, (LPCTSTR) NULL, WS_CHILD \| WS_VISIBLE, rcClient.left, rcClient.bottom, rcClient.right - rcClient, rcClient.top - rcClient.bottom, hwnd, (HMENU) 0, hInstance, NULL); SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100)); SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0); DestroyWindow(hwndPB); } void OnButtonClicked() { SendMessage(hwndPB, PBM_STEPIT, 0, 0); } Got to run now, I'll help you later if it doesnt work __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

Oct 28th, 2005, 6:15 AM	#33
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	Sorry all wrong (comes from doing all by heart, without compiler), here is a good version: (Toggle Plain Text) #include <windows.h> #include <commctrl.h> LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); /* Global var / char className = "ProgressbarApp"; char * captionName = "Progressbar Application"; HWND hwndPB; HINSTANCE hInstanceGlobal; /* Function prototypes / int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int ); BOOL InitApplication( HINSTANCE ); BOOL InitInstance( HINSTANCE, int ); LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM ); int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ) { MSG msg; hInstanceGlobal= hInstance; if (!InitApplication(hInstance)) return FALSE; if (!InitInstance(hInstance, nCmdShow)) return FALSE; while((GetMessage(&msg, NULL, 0, 0)) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return (int)msg.wParam; } / Initialise Application / BOOL InitApplication( HINSTANCE hInstance ) { WNDCLASS WndClass; WndClass.style = 0; WndClass.cbClsExtra = 0; WndClass.cbWndExtra = 0; WndClass.lpfnWndProc = WndProc; WndClass.hInstance = hInstance; WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1); WndClass.hCursor = LoadCursor(NULL, IDC_ARROW); WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION); WndClass.lpszMenuName = NULL; WndClass.lpszClassName = className; return RegisterClass(&WndClass); } BOOL InitInstance( HINSTANCE hInstance, int nCmdShow ) { HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); if(!hWnd) return FALSE; ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam ) { switch(message) { case WM_CLOSE: DestroyWindow(hwnd); return 0; case WM_DESTROY: PostQuitMessage(0); return 0; case WM_CREATE: HWND hButton; RECT rcClient; int cyVScroll; hButton = CreateWindow("BUTTON", "Increment", WS_CHILD \| WS_VISIBLE \| BS_PUSHBUTTON, 100, 100, 100, 50, hwnd, (HMENU) 1, hInstanceGlobal, NULL); InitCommonControls(); GetClientRect(hwnd, &rcClient); cyVScroll = GetSystemMetrics(SM_CYVSCROLL); hwndPB = CreateWindowEx(0, PROGRESS_CLASS,(LPCTSTR) NULL, WS_CHILD \| WS_VISIBLE, rcClient.left, rcClient.bottom - cyVScroll, rcClient.right, cyVScroll, hwnd, (HMENU) 0, hInstanceGlobal, NULL); SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100)); SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0); break; case WM_COMMAND: if (HIWORD(wParam) == BN_CLICKED) { if(LOWORD(wParam) == 1) { static int counter = 0; if(!(counter > 4)) { SendMessage(hwndPB, PBM_STEPIT, 0, 0); counter++; } else { DestroyWindow(hwndPB); } } } break; default: return DefWindowProc(hwnd, message, wParam, lParam); } return 0; } #include <windows.h> #include <commctrl.h> LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); / Global var / char className = "ProgressbarApp"; char * captionName = "Progressbar Application"; HWND hwndPB; HINSTANCE hInstanceGlobal; /* Function prototypes / int APIENTRY WinMain( HINSTANCE, HINSTANCE, LPSTR, int ); BOOL InitApplication( HINSTANCE ); BOOL InitInstance( HINSTANCE, int ); LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM ); int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ) { MSG msg; hInstanceGlobal= hInstance; if (!InitApplication(hInstance)) return FALSE; if (!InitInstance(hInstance, nCmdShow)) return FALSE; while((GetMessage(&msg, NULL, 0, 0)) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return (int)msg.wParam; } / Initialise Application */ BOOL InitApplication( HINSTANCE hInstance ) { WNDCLASS WndClass; WndClass.style = 0; WndClass.cbClsExtra = 0; WndClass.cbWndExtra = 0; WndClass.lpfnWndProc = WndProc; WndClass.hInstance = hInstance; WndClass.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1); WndClass.hCursor = LoadCursor(NULL, IDC_ARROW); WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION); WndClass.lpszMenuName = NULL; WndClass.lpszClassName = className; return RegisterClass(&WndClass); } BOOL InitInstance( HINSTANCE hInstance, int nCmdShow ) { HWND hWnd = CreateWindow(className, captionName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); if(!hWnd) return FALSE; ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam ) { switch(message) { case WM_CLOSE: DestroyWindow(hwnd); return 0; case WM_DESTROY: PostQuitMessage(0); return 0; case WM_CREATE: HWND hButton; RECT rcClient; int cyVScroll; hButton = CreateWindow("BUTTON", "Increment", WS_CHILD \| WS_VISIBLE \| BS_PUSHBUTTON, 100, 100, 100, 50, hwnd, (HMENU) 1, hInstanceGlobal, NULL); InitCommonControls(); GetClientRect(hwnd, &rcClient); cyVScroll = GetSystemMetrics(SM_CYVSCROLL); hwndPB = CreateWindowEx(0, PROGRESS_CLASS,(LPCTSTR) NULL, WS_CHILD \| WS_VISIBLE, rcClient.left, rcClient.bottom - cyVScroll, rcClient.right, cyVScroll, hwnd, (HMENU) 0, hInstanceGlobal, NULL); SendMessage(hwndPB, PBM_SETRANGE, 0, MAKELPARAM(0, 100)); SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 20, 0); break; case WM_COMMAND: if (HIWORD(wParam) == BN_CLICKED) { if(LOWORD(wParam) == 1) { static int counter = 0; if(!(counter > 4)) { SendMessage(hwndPB, PBM_STEPIT, 0, 0); counter++; } else { DestroyWindow(hwndPB); } } } break; default: return DefWindowProc(hwnd, message, wParam, lParam); } return 0; } __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

Oct 28th, 2005, 7:29 AM	#34
badbasser98 Hobbyist Programmer Join Date: Mar 2005 Location: United States Posts: 124 Rep Power: 4	(Toggle Plain Text) [Linker error] undefined reference to `InitCommonControls@0' [Linker error] undefined reference to `InitCommonControls@0' I got this message before one some code that I wrote that was exactly like an example that I saw, except altered for the ranges, variables that I need in my prog. Bug in Dev-C++? I have version 4.9.9.2 Thanks for the help nnxion, -BB98 __________________ Learning to use C++ and loving every minute of it.

Oct 31st, 2005, 7:17 AM	#38
badbasser98 Hobbyist Programmer Join Date: Mar 2005 Location: United States Posts: 124 Rep Power: 4	I'll give it a try, thanks -BB98 __________________ Learning to use C++ and loving every minute of it.

Nov 1st, 2005, 9:23 AM	#39
badbasser98 Hobbyist Programmer Join Date: Mar 2005 Location: United States Posts: 124 Rep Power: 4	Adding that library worked, let me try that in my program. Thanks for the help -BB98 __________________ Learning to use C++ and loving every minute of it.

Oct 27th, 2005, 7:20 PM	#31
The Dark Expert Programmer Join Date: Jun 2005 Posts: 816 Rep Power: 4	Where are you getting hwndPB from? In your previous code it was never initialised.

Nov 1st, 2005, 1:40 PM	#40
badbasser98 Hobbyist Programmer Join Date: Mar 2005 Location: United States Posts: 124 Rep Power: 4	Well now I have got the progress bar to show, but it will not increment... The program actually does what it is supposed to do, except the user does not get any notification that it has done anything. Obviously, I would like the progress bar to increment, as well as some text to be displayed after each file is removed (or attempted to be removed, if it does not exist). You can find the code that I want to do this in a previous post (the one that starts with "case WM_COMMAND:" in the code field.) Is it possible to do what I am asking in that area of the code? or probably a different way to go about it... Thanks for the help, you guys have been great. Without your help this would have been a very long, drawn out, frustrating process. -BB98 __________________ Learning to use C++ and loving every minute of it.

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GUI Progress Bar