C / C++ / MFC

14-Oct-11 9:42

I'm making a progress window for my Program, that is MDI. The progress window will show progress when a windows service is starting or stopping.

I wanted to make the progress window sort of universal, in which the Master Window owns it, and not the MDIChild Window,

I sort of confused here. I need the HWND from the master window to use in CreateWindowEx, but quite sure how to get it, Because I'm loading the Progress Windows from an MDIChild Window, and my create window fails. Actually I'm modeling the window first to make sure it works and looks right before I fully implement it.

BOOL ProgressBar_Popup::_show_ProgressWindow( HINSTANCE hInstance, HWND cWnd ) 
{

	LPWSTR					windowTitle						= L"Progress";

	// Font Variables
	HDC						hdc;

	// Get the Parent HWND
	gProgressBar_Popup_GAC = cWnd;

	// Get the current HDC
	hdc = GetDC(cWnd);
	hProgressBar_Popup_Instance = hInstance;
	
	LoadString(hProgressBar_Popup_Instance, IDC_PROGRESSBAR_POPUP, sz_ProgressBar_Popup_Class, MAX_LOADSTRING);

	// Create and Register the Popup Window
	_register_ProgressBar_Popup_Class(hInstance);
	hProgressBar_Popup = _create_ProgressBar_Popup(hInstance, windowTitle);
	_progressbar_Popup_Center( gProgressBar_Popup_GAC, hProgressBar_Popup );


	return TRUE;
}

ATOM ProgressBar_Popup::_register_ProgressBar_Popup_Class(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;
	wcex.cbSize        = sizeof(WNDCLASSEX);

    wcex.style         = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc   = (WNDPROC) _progressbar_Popup_WndProc;
    wcex.cbClsExtra    = 0;
    wcex.cbWndExtra    = 0;
    wcex.hInstance     = hInstance;
    wcex.hIcon         = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_NASE2012_SUWIZARD));
    wcex.hCursor       = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground = (HBRUSH)GetStockObject( WHITE_BRUSH );
	wcex.lpszMenuName  = NULL; 
    wcex.lpszClassName = sz_ProgressBar_Popup_Class;
    wcex.hIconSm       = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

	if (!RegisterClassEx(&wcex))
    {
        MessageBox(NULL,
            _T("Call to RegisterClassEx failed!"),
            _T("Win32 Guided Tour"),
            NULL);        
    }

    return RegisterClassEx(&wcex);
}

HWND ProgressBar_Popup::_create_ProgressBar_Popup(HINSTANCE hInstance, LPWSTR windowTitle)
{ 
	HWND hWnd = CreateWindowEx(
		WS_EX_TOPMOST,
        sz_ProgressBar_Popup_Class,         
        windowTitle,
		WS_POPUPWINDOW,    
        10, 10,                 
        200, 200,               
        gProgressBar_Popup_GAC,
		NULL,             
        hInstance,
		NULL
	);	

	if ( !hWnd ) 
	{
		// Create Window has failed
		MessageBox(hWnd,
			L"Progress Bar Popup has failed",
            L"Progress Bar Popup",
			MB_ICONEXCLAMATION | MB_OK);
	}
	else
	{
		ShowWindow(hWnd, SW_SHOW );
		UpdateWindow(hWnd);

	}

	return hWnd;
    
}

David Crow14-Oct-11 10:06

David Crow

14-Oct-11 10:06

Have you considered just showing progress bar in a status bar pane[^]?

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"Show me a community that obeys the Ten Commandments and I'll show you a less crowded prison system." - Anonymous

jkirkerx14-Oct-11 10:38

14-Oct-11 10:38

I went to lunch and came back, with a new idea, so I deleted the stuff I wrote, and will try to create a some sort of dialog box in the main.cpp.

I have a status bar, but haven't figured out what to put in it, or how to access it.

Richard MacCutchan14-Oct-11 23:02

14-Oct-11 23:02

Why not use the ready made ProgressBar[^] from Microsoft?

Unrequited desire is character building. OriginalGriff

jkirkerx15-Oct-11 7:02

15-Oct-11 7:02

I thought it would be a good lesson for to learn how create various windows, and at the time, I was thinking in consumer mode. The progress bar looks very difficult for me now, so I will just create a message or popup window saying that the service is starting or stopping.

Thanks for the suggestion, I'm going to skip ahead to the next task, which is trying to figure out how to delete text I made with drawtext.

Richard MacCutchan15-Oct-11 7:09

15-Oct-11 7:09

jkirkerx wrote:
The progress bar looks very difficult for me now

I would suggest you look a bit harder. This is quite an easy control to implement and all the hard work of painting the bar is done for you; all you have to do is set the limits and update the amount completed from time to time. I'm sure if you do an article search here on CodeProject you will find some sample code to help you.

Unrequited desire is character building. OriginalGriff

jkirkerx15-Oct-11 8:13

15-Oct-11 8:13

Or perhaps I will just trip over it by accident, Just Joking, and I like the motivational push forward you gave me. Actually after a complete day of failure or experimenting, Things are clearer for me now in the c++ windows world.

I went on to the next project, some sort of Label control in c++, and found that I can use CreateWindow to make a Label, Textbox, ComboBox, and a Progress Bar.

So I replaced my Drawtext and created a STATIC in the same place, and I will make a progress bar under it.

Since I painted by background white, I need to figure out how to paint the Label and Progress background white as well.

// Create the Operational Status Text
		txt_Website_Default_Status = CreateWindow(TEXT("STATIC"), TEXT("Press Next to begin the programming"), WS_CHILD | WS_VISIBLE | SS_LEFT,
			winWidth - 300,
			winHeight - 250,
			275, 20, hWebsite_Default, (HMENU)IDC_WEBSITE_DEFAULT_LABEL, GetModuleHandle(NULL), 0
		);
		SendMessage(txt_Website_Default_Status, WM_SETFONT, (WPARAM)hFont_Label, FALSE);
		ShowWindow(txt_Website_Default_Status, SW_SHOW);

Richard MacCutchan15-Oct-11 21:24

15-Oct-11 21:24

jkirkerx wrote:
I need to figure out how to paint the Label and Progress background white as well.

I am not certain, but I think you have to use Subclassing[^] in order to do that.

Unrequited desire is character building. OriginalGriff

jkirkerx16-Oct-11 6:53

16-Oct-11 6:53

I ended up adding this to the WndProc, Looks like it paints the background on STATIC.

Yesterday was a big day, I learned how to create controls, and handle them during the wizard process, in which the window updates with progress status text and the progress bar.

Today I will try to figure out how to paint the progress bar to the default theme.

case WM_CTLCOLORSTATIC:
            SetBkMode(hdcStatic, TRANSPARENT);
            return (LONG)hbrBackground_White;
            break;

Richard MacCutchan16-Oct-11 7:16

Getting IP Address from IP Control

16-Oct-11 7:16

Good catch, I had forgotten about that message.

Unrequited desire is character building. OriginalGriff

pandit8414-Oct-11 2:42

pandit84

14-Oct-11 2:42

Hi ,
I am trying to get IP Address from an IP Control using below code. But I am getting an IP Address in Reverse Order , like if my IP Contrl has 123.45.67.89 , then inet_ntoa () method return address as 89.67.45.123. Can you provide any information on how to get IP Address from IP Control.

C++

DWORD dwIPAddress ;
::SendMessage (hwndIPAddress,IPM_GETADDRESS,0, (LPARAM) (LPDWORD) &dwIPAddress ) ;
struct in_addr addr;	
addr.S_un .S_addr = (ULONG)dwIPAddress ;
char *IPAddres = new char[9] ;
IPAddres = inet_ntoa (addr) ;

Re: Getting IP Address from IP Control

«_Superman_»14-Oct-11 3:12

«_Superman_»

14-Oct-11 3:12

DWORD dwIPAddress = 0;
::SendMessage (hwndIPAddress, IPM_GETADDRESS, 0, (LPARAM)&dwIPAddress);
struct in_addr addr;	
addr.S_un.S_addr = (ULONG)dwIPAddress ;
char IPAddress[16] ;
sprintf(IPAddress, "%d.%d.%d.%d", addr.S_un.s_b1, addr.S_un.s_b2, addr.S_un.s_b3, addr.S_un.s_b4);

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Polymorphism in C

Re: Getting IP Address from IP Control

pandit8414-Oct-11 3:15

pandit84

14-Oct-11 3:15

Thanks you suparman.... Thumbs Up | :thumbsup:

Re: htonl() converts

Software_Developer14-Oct-11 4:48

Software_Developer

14-Oct-11 4:48

htonl() converts an IPv4 address in host byte order (e.g. mac or pc format) to the IPv4 address in network byte order.
inet_ntoa() converts an (Ipv4) Internet network address into an ASCII string.

Suggest a third party library for MFC applications

rahul.kulshreshtha13-Oct-11 22:39

Re: Suggest a third party library for MFC applications

13-Oct-11 22:39

We know that MFC does not have Good UI controls. I am searching for a UI library either free or paid library(paid should have few days trial license so that I can test the performance).

My application is a Trading application so UI library must be fast and stable(No memory leaks). There will be immediate text updates, chart updates(LineCharts, bar, graphs), market-watch updates which show prices of shares and other details whith change of twice, thrice or sometimes 10times in a second.

Let me know if any other details are needed.

Thanks,
Rahul Kulshreshtha

_AnsHUMAN_ 13-Oct-11 23:45

_AnsHUMAN_

13-Oct-11 23:45

I would prefer Qt Library[^]

You talk about Being HUMAN. I have it in my name
AnsHUMAN

Re: Suggest a third party library for MFC applications

App_14-Oct-11 0:42

App_

14-Oct-11 0:42

Yes QtGui on Linux.

I's so easy to learn , like so:

#include <QtGui>
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QLabel label("Hello, world!");
    label.show();
    return app.exec();
}

more here

Why even use windows? Wall street trading systems all use Red Hat/SUSE.
Windows is mostly relegated to the back office, Windows typically has larger latency times than that of Linux.

Re: Suggest a third party library for MFC applications

rahul.kulshreshtha14-Oct-11 7:17

Re: Suggest a third party library for MFC applications

14-Oct-11 7:17

My application is already ready for windows platforms, now I am tweaking the things and changing UI to catch more peoples. So I am bound to windows and Visual Studio Wink | ;)

rahul.kulshreshtha14-Oct-11 7:14

Re: Suggest a third party library for MFC applications

14-Oct-11 7:14

I had a little experience with QT, but I don't know if it has UI controls which I need. Can you suggest a website for that?

_AnsHUMAN_ 16-Oct-11 18:51

_AnsHUMAN_

16-Oct-11 18:51

Well! The link I shared had some forward links to the examples for using the Qt Lib.

You talk about Being HUMAN. I have it in my name
AnsHUMAN

Re: Suggest a third party library for MFC applications

Maximilien14-Oct-11 1:05

Maximilien

14-Oct-11 1:05

rahul.kulshreshtha wrote:
know that MFC does not have Good UI controls.

I don't know this. why do you believe it is so ?

In my experience, most "generic" 3rd party UI kit turn out to be more pain than necessary and become hell to support after a few years.

I find that MFC (with the new-ish improvements) will satisfy 95% of our development need; the rest of our need will be filled by specialized controls (most of the time home-made)

Watched code never compiles.

Re: Suggest a third party library for MFC applications

Stefan_Lang14-Oct-11 6:25

Stefan_Lang

14-Oct-11 6:25

In the time I worked with MFC I gathered a lot of painful memories stemming from bad documentation*, undefined behaviour, and applications silently breaking upon OS updates. I happily haven't been actively working with it for years now, but the API is still horrible and anything but what a clean, modern OO API should be. Who in his right mind would design an OO interface that requires you to fiddle apart some obscure parameter into several parts? (LPARAM anyone?)

I've been working with XT Toolkit Pro and it's a much more modern and consistent API. It does offer better UI components too, but of course that's an IMHO.

True, nothing prevents you to keep using an outdated GUI API if it fulfills your needs. The question is if it still fulfills your client's needs! Besides, I doubt that MS will continue to put any more work into MFC once W8 and Metro are out. So if you're starting on a new project aimed at more than just your personal needs, using MFC is certainly not the best way to go.

* P.S.: I have to admit that the MFC online documentation has quite improved, though I find the process of retrieveing a specific bit of information from MSDN a lot more time consuming than it used to be in the days of .hlp files.

Re: Suggest a third party library for MFC applications

rahul.kulshreshtha14-Oct-11 7:20