C / C++ / MFC

why is my control BEEPING???

20-Jan-06 7:21

need4change wrote:
Can anyone help me in making a source code for a profeller

I assume you meant to say profiler. What's wrong with the one that ships with Visual Studio?

need4change wrote:
EXAMPLE

Just out of curiosity, what is this an example of?

"The words of God are not like the oak leaf which dies and falls to the earth, but like the pine tree which stays green forever." - Native American Proverb

Re: Profeller

Toby Opferman20-Jan-06 7:27

Toby Opferman

20-Jan-06 7:27

Looks like a CS homework assignment.

8bc7c0ec02c0e404c0cc0680f7018827ebee

Re: Profeller

Cedric Moonen20-Jan-06 8:17

Cedric Moonen

20-Jan-06 8:17

need4change wrote:
pls can someone help me....

Yes, if you ask the right question. I don't see any question in your post. And your post is also very unclear. If you ask for people to do the job for you, be very carefull then. You'll be warned Poke tongue | ;-P

stephen.hazel20-Jan-06 6:25

20-Jan-06 6:25

I've got a c++ win32 (non MFC) dialog based app with a custom control
that listens to WM_KEYDOWN,WM_KEYUP for keypress/releases to
behave like a synth keyboard - so i NEED keyup events.

Thing is, it's BEEPING! (a "default beep" type beep)
In my custom control i've tried returning 0, returning 1 and
calling the default message handler - STILL beeps.

I tried with and without calling TranslateMessage() in my msgloop.
STILL BEEPS!

Can anybody help meee?

Here's my custom control - pretty basic:
(KeyMap and Canvas are my own classes, but are pretty simple and DON'T BEEP)

struct {key k;  ubyte nt;} KyNt [] = {
   {'z', M_NT(M_C,0)},   {'x', M_NT(M_D,0)},
   {'c', M_NT(M_E,0)},   {'v', M_NT(M_F,0)},
   {'b', M_NT(M_G,0)},   {'n', M_NT(M_A,0)},
   {'m', M_NT(M_B,0)},   {',', M_NT(M_C,1)},
   {'.', M_NT(M_D,1)},   {'/', M_NT(M_E,1)},

   {'s', M_NT(M_Db,0)},  {'d', M_NT(M_Eb,0)},
   {'g', M_NT(M_Gb,0)},  {'h', M_NT(M_Ab,0)},
   {'j', M_NT(M_Bb,0)},  {'l', M_NT(M_Db,1)},
   {';', M_NT(M_Eb,1)},

   {'q', M_NT(M_C,1)},   {'w', M_NT(M_D,1)},
   {'e', M_NT(M_E,1)},   {'r', M_NT(M_F,1)},
   {'t', M_NT(M_G,1)},   {'y', M_NT(M_A,1)},
   {'u', M_NT(M_B,1)},   {'i', M_NT(M_C,2)},
   {'o', M_NT(M_D,2)},   {'p', M_NT(M_E,2)},
   {'[', M_NT(M_F,2)},   {']', M_NT(M_G,2)},
   {'\\', M_NT(M_A,2)},

   {'2', M_NT(M_Db,1)},  {'3', M_NT(M_Eb,1)},
   {'5', M_NT(M_Gb,1)},  {'6', M_NT(M_Ab,1)},
   {'7', M_NT(M_Bb,1)},  {'9', M_NT(M_Db,2)},
   {'0', M_NT(M_Eb,2)},  {'=', M_NT(M_Gb,2)},
   {BSP_KEY, M_NT(M_Ab,2)}
};

struct CtlKbd {
public:
   void Init ()
   {
TRC("CtlKbd::Init bgn");
      MemSet (& _wc, 0, sizeof (_wc));
      _wc.lpszClassName = "KBD";
      _wc.lpfnWndProc   = WinProc;
      _wc.cbSize        = sizeof (WNDCLASSEX);
//    _wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
      _wc.hCursor       = ::LoadCursor (0, IDC_ARROW);
      if (::RegisterClassEx (& _wc) == 0)
         DieWn ("CtlKbd::CtlKbd  RegisterClassEx");
TRC("CtlKbd::Init end");
   }
private:
   WNDCLASSEX _wc;
   static LRESULT CALLBACK WinProc (HWND hwnd, UINT msg, WPARAM w, LPARAM l)
   { static bool  foc = false;
     static ubyte oct = 4;
     static ubyte vel = 100;
      switch (msg) {
      case WM_LBUTTONDOWN:
         ::SetFocus (hwnd);
         return 0;
      case WM_SETFOCUS:
         foc = true;    ::RedrawWindow (hwnd, NULL, NULL, RDW_INVALIDATE);
         return 0;
      case WM_KILLFOCUS:
         foc = false;   ::RedrawWindow (hwnd, NULL, NULL, RDW_INVALIDATE);
         return 0;
      case WM_PAINT:
         { PAINTSTRUCT p;
           Canvas      c (::BeginPaint (hwnd, & p));
            c.SetBg (foc ? 0 : 255, foc ? 255 : 0, 0);
            c.Text (0, 0, "in");
            ::EndPaint (hwnd, & p);
         }
         return 0;
      case WM_ERASEBKGND:
         return 0;
//    case WM_SYSKEYDOWN:  case WM_SYSKEYUP:
      case    WM_KEYDOWN:  case    WM_KEYUP:
      { KeyMap km;
        key    k;
        ubyte  i;
        TrkEv  e;
char buf [900];
     // if keyup or keydown-nonrepeat
         if ((l & 0x80000000) || (!(l & 0x40000000)))  if (k = km.Map (w)) {
            for (i = 0; i < BITS (KyNt); i++)
               if (k == KyNt [i].k) {
                  e.ctrl = (ubyte)(KyNt [i].nt + oct*12);
                  e.valu = (l & 0x80000000) ? 0 : vel;
                  if ((l & 0x80000000) == 0) e.valu |= 0x80;
                  e.chan = 0;
                  sprintf (buf, "kbd ctl: $%02X $%02X\n", e.ctrl, e.valu);
                  DBG(buf);
                  break;
               }
         }
         return 0;
      }
      }
      return ::DefWindowProc (hwnd, msg, w, l);
   }
};

David Crow20-Jan-06 7:25

20-Jan-06 7:25

Seems to me you could play around with the various messages you are handling by calling DefWindowProc() instead until you find the message that is in question. From there, you could narrow it down to the actual statement that is causing the problem.

"The words of God are not like the oak leaf which dies and falls to the earth, but like the pine tree which stays green forever." - Native American Proverb

stephen.hazel20-Jan-06 7:48

20-Jan-06 7:48

Well, I suspect the DefWindowProc itself is actually DOING the beeping.
But I don't know why???
I must be doing something wrong, but I don't know what...

stephen.hazel20-Jan-06 8:00

20-Jan-06 8:00

Hmm, I took everything out and it still beeps.
So it has to be due to IsDialogMessage of the MsgLoop
or DefWindowProc of my custom control...

When focus is on a combo box, holding down keys doesn't cause "default beep".
But when my custom control has focus it DOES do the "default beep".

Maybe my control has to say "hey i need keypresses" so IsDialogMessage doesn't
beep (I'm guessing due to not being able to navigate to a static with that mnemonic???)

Hmmmmmmmmmm......

(And thanks for the reply!)

...Steve

stephen.hazel20-Jan-06 8:29

20-Jan-06 8:29

Ok. I needed to handle WM_GETDLGCODE for my custom control to get wm_keyup/down...
No more beeping.
Buuuut, now I can't tab outa the field once I'm in it.
I can click out, but can't tab/shift-tab out...

Anybody know how to correctly handle tab, shift-tab, cursor up/down/left/right, mnemonic???

Sighhh...

...Steve

struct CtlKbd {
public:
   void Init ()
   {
TRC("CtlKbd::Init bgn");
      MemSet (& _wc, 0, sizeof (_wc));
      _wc.lpszClassName = "KBD";
      _wc.lpfnWndProc   = WinProc;
      _wc.cbSize        = sizeof (WNDCLASSEX);
//    _wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
      _wc.hCursor       = ::LoadCursor (0, IDC_ARROW);
      if (::RegisterClassEx (& _wc) == 0)
         DieWn ("CtlKbd::CtlKbd  RegisterClassEx");
TRC("CtlKbd::Init end");
   }
private:
   WNDCLASSEX _wc;
   static LRESULT CALLBACK WinProc (HWND hwnd, UINT msg, WPARAM w, LPARAM l)
   { static bool  foc = false;
     static ubyte oct = 4;
     static ubyte vel = 100;
      switch (msg) {
      case WM_GETDLGCODE:
         return DLGC_WANTALLKEYS;
      case WM_LBUTTONDOWN:
         ::SetFocus (hwnd);
         return 0;
      case WM_SETFOCUS:
         foc = true;    ::RedrawWindow (hwnd, NULL, NULL, RDW_INVALIDATE);
         return 0;
      case WM_KILLFOCUS:
         foc = false;   ::RedrawWindow (hwnd, NULL, NULL, RDW_INVALIDATE);
         return 0;
      case WM_PAINT:
         { PAINTSTRUCT p;
           Canvas      c (::BeginPaint (hwnd, & p));
            c.SetBg (foc ? 0 : 255, foc ? 255 : 0, 0);
            c.Text (0, 0, "in");
            ::EndPaint (hwnd, & p);
         }
         return 0;
      case WM_ERASEBKGND:
         return 0;
//    case WM_SYSKEYDOWN:  case WM_SYSKEYUP:
      case    WM_KEYDOWN:  case    WM_KEYUP:
      { KeyMap km;
        key    k;
        ubyte  i;
        TrkEv  e;
char buf [900];
     // if keyup or keydown-nonrepeat
         if ((l & 0x80000000) || (!(l & 0x40000000)))  if (k = km.Map (w)) {
            for (i = 0; i < BITS (KyNt); i++)
               if (k == KyNt [i].k) {
                  e.ctrl = (ubyte)(KyNt [i].nt + oct*12);
                  e.valu = (l & 0x80000000) ? 0 : vel;
                  if ((l & 0x80000000) == 0) e.valu |= 0x80;
                  e.chan = 0;
                  sprintf (buf, "kbd ctl: $%02X $%02X\n", e.ctrl, e.valu);
                  DBG(buf);
                  return 0;
               }
         }
         break;
      }
      }
      return ::DefWindowProc (hwnd, msg, w, l);
   }
};

David Crow20-Jan-06 8:40

20-Jan-06 8:40

Steve Hazel wrote:
case WM_GETDLGCODE:
return DLGC_WANTALLKEYS;

What about DLGC_WANTARROWS and DLGC_WANTTAB?

"The words of God are not like the oak leaf which dies and falls to the earth, but like the pine tree which stays green forever." - Native American Proverb

stephen.hazel20-Jan-06 9:23

20-Jan-06 9:23

handling WM_GETDLGCODE with return DLGC_WANTALLKEYS tells the dialog manager
that I want keys and to NOT beep when a key doesn't resolve to a static to navigate to.

The keys I want to watch go up and down don't include arrows or tab.
I was -hoping- that the msgloop's IsDialogMessage() or control's DefWindowProc
would handle tabbing(and shift tabbing and arrowing) to other controls,
but noooooo...

So now I gotta figure out how to correctly tab/shift-tab/etc... Dead | X|

...Steve

Blake Miller20-Jan-06 12:01

Blake Miller

20-Jan-06 12:01

How about changing it to DLGC_WANTCHARS instead, so the dialog manager will still process the arrow keys and the tab character if the IsDialogMessage is properly introduced into whatever main message loop you have for your application.

If not, then you need to handle the arrow keys and TAB/SHIFT+TAB your self and translate them into setting focus of appropriate next and previous dialog controls.

People that start writing code immediately are programmers (or hackers), people that ask questions first are Software Engineers - Graham Shanks

stephen.hazel21-Jan-06 16:46

21-Jan-06 16:46

Not sure about DLGC_WANTCHARS.
I need WM_KEYDOWN/WM_KEYUP messages.
I need the up messages so I know when to turn notes off.

right now i got it covered by DLGC_ANY<whatever_that_was_called>
it stops the beeps.

when i get a tab or shift tab, I send the parent dialog the
message for next/prev control.

i never use arrow keys, but i suppose i SHOULD handle those, too.
not gonna bother with the mnemonic hoppin' biz Frown | :(

Anywayyyyyyyyyz, it's good enough i spose.

Thanks Smile | :)

...Steve

Windows 2003

zinc_z20-Jan-06 6:06

20-Jan-06 6:06

Hi I posted this question earlier too. I have a VC application runing fine on 2000 n XP . But I could't run that application on server 2003. So after trying everything , I just installed MS VC++ 6 on Server2003 and compile that application and ran it , and it ran fine.

But now I have to ran that VC application on another MS 2003 server , and even after copying the 2003 DLLs , its not runing. Do I have to install MS VC++ on that machine also to ran my application ???

Any solution ? suggestions ?? plz !

ZINC

Divyang Mithaiwala20-Jan-06 6:16

Divyang Mithaiwala

20-Jan-06 6:16

Hello ZINC,

Your application has so many dependencies.
So first u have to find that all.

Or just making package. which is recommended by me.
Becoz as u said u copy all dll file's
but some dll file u have to register with os be regsvr32.exe command.
so by making package it will handle all that things for u.

Divyang Mithaiwala
with best regards

zinc_z20-Jan-06 7:03

20-Jan-06 7:03

Hi Divyang ,

Thanks for reply , can you please guide me how to make package ?

Kind Regards,
Zinc

Divyang Mithaiwala20-Jan-06 17:06

Divyang Mithaiwala

20-Jan-06 17:06

Hello zinc_z,

For making package first make exe file by building project.

then there is one tool
start->Program->Microsoft Visual Studio 6.0->Microsoft Visual Studio 6.0 tool -> Package & Deployment Wizard

zinc_z21-Jan-06 15:09

21-Jan-06 15:09

hi there ,

i have checked this tool , this tool only give option to open VBP visual basic project. Mine is a Viusal C++ project.

Regards
ZINC

Michael Dunn20-Jan-06 6:55

Michael Dunn

20-Jan-06 6:55

See the FAQ
8.2 A program I've written doesn't load when it's run on a computer without Visual C++ installed. Why?[^]

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

zinc_z20-Jan-06 7:53

20-Jan-06 7:53

Hi Mike ,

I have done what u have sugested but still its not working !!!

anyother sugestions ???

Regards
ZINC

HELLO

can i store a character variable to chararacter pointer variable?

Toby Opferman20-Jan-06 14:05

Toby Opferman

20-Jan-06 14:05

Did you use dependency walker (As mentioned in the faq) and determine what dependencies your application is using? Most likely if it's a crappy MFC application and you're building debug you don't have the debug MFC binaries installed.

8bc7c0ec02c0e404c0cc0680f7018827ebee

Harrison Ford20-Jan-06 5:33

Harrison Ford

20-Jan-06 5:33

I am getting the value as character , then i need to copy that character variable into another character pointer variable....can we do this.

char svr;
char* svr1;

How to assigh char to char*?

-- modified at 11:39 Friday 20th January, 2006

Re: can i store a character variable to chararacter pointer variable?

Divyang Mithaiwala20-Jan-06 5:58

Divyang Mithaiwala

20-Jan-06 5:58

Hello satish,

first u have to allocate memory for svr1 pointer like.
svr1 = new char();

then u can just copy the value of svr to svr1 like
*svr1 = svr;

Re: can i store a character variable to chararacter pointer variable?

David Crow20-Jan-06 7:28