C / C++ / MFC

15-Nov-05 7:22

You can put conditions on breakpoints. If you have a variable that represents the active thread, you could use that.

"Take only what you need and leave the land as you found it." - Native American Proverb

LNK2001 error

yongwpi15-Nov-05 4:50

yongwpi

15-Nov-05 4:50

I attempted to use WMF SDK, but ran into link error.

DRMShow.cpp
Generating Code...
Linking...
WMStubDRM_38503.lib(so3.obj) : error LNK2001: unresolved external symbol __ftol2
WMStubDRM_38503.lib(rc4safe.obj) : error LNK2001: unresolved external symbol __SEH_epilog
WMStubDRM_38503.lib(cpu.obj) : error LNK2001: unresolved external symbol __SEH_epilog
WMStubDRM_38503.lib(rc4safe.obj) : error LNK2001: unresolved external symbol __SEH_prolog
WMStubDRM_38503.lib(cpu.obj) : error LNK2001: unresolved external symbol __SEH_prolog
Debug/DRMShow.exe : fatal error LNK1120: 3 unresolved externals
Error executing link.exe.

Yong

Re: LNK2001 error

David Crow15-Nov-05 4:55

how to retrieve a HANDLE from a pointer?

15-Nov-05 4:55

yongwpi wrote:
WMStubDRM_38503.lib(rc4safe.obj) : error LNK2001: unresolved external symbol __SEH_epilog
WMStubDRM_38503.lib(cpu.obj) : error LNK2001: unresolved external symbol __SEH_epilog
WMStubDRM_38503.lib(rc4safe.obj) : error LNK2001: unresolved external symbol __SEH_prolog
WMStubDRM_38503.lib(cpu.obj) : error LNK2001: unresolved external symbol __SEH_prolog

Doesn't this require linking with sehprolg.obj?

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: LNK2001 error

Michael Dunn15-Nov-05 8:25

Michael Dunn

15-Nov-05 8:25

Are you using VC6? If so, you're SOL. MS stopped releasing VC6-compatible LIBs a couple years ago.

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

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ewighell15-Nov-05 4:49

ewighell

15-Nov-05 4:49

many functions require parameters of type HANDLE. how to get it? take the following for instance:

CEdit *pEdit;
pEdit = new CEdit();
pEdit->Create(0,rect,this,IDC_EDIT1);
// how can I get a handle to the Edit window?
...
delete pEdit;

Thank you very much!!!

-------------------
I am learning C++ and English

David Crow15-Nov-05 4:57

15-Nov-05 4:57

ewighell wrote:
// how can I get a handle to the Edit window?

Use the GetSafeHwnd() method. However, why do you need it?

"Take only what you need and leave the land as you found it." - Native American Proverb

ewighell15-Nov-05 15:44

ewighell

15-Nov-05 15:44

I want to send a message with the function SendMessage(), it seems that some of its parameters are of type HWND.
I want to send a BN_CLICKED message to the button m_bn1, which is of type CButton with the following code, but it seems does not work, where am I wrong?

SendMessage(BN_CLICKED,IDC_BUTTON1,(LPARAM)m_bn1.GetSafeHwnd());

Thank you very much!!!

-------------------
I am learning C++ and English

-- modified at 21:47 Tuesday 15th November, 2005

Steen Krogsgaard15-Nov-05 22:44

Steen Krogsgaard

15-Nov-05 22:44

First, you don't need to get the HWND. You can just call pEdit->SendMessage(msg, wparam, lparam).

But, it won't work in your case. BN_CLICKED is a notification send by the button to its parent, not the other way aroiund . And it's not a BN_CLICKED message, it's a WM_COMMAND message with BN_CLICKED encoded in its WPARAM parameter (see MSDN for details).

What do you want to accomplish?

Cheers
Steen.

"To claim that computer games influence children is ridiculous. If Pacman had influenced children born in the 80'ies we would see a lot of youngsters running around in dark rooms eating pills while listening to monotonous music"

debugging locals not matching

Cedric Moonen15-Nov-05 5:02

Cedric Moonen

15-Nov-05 5:02

GetSafeHWND

simaneal15-Nov-05 3:35

simaneal

15-Nov-05 3:35

I am trying to debug a program using Visual Studio, but one of my local values in not matching what is printed using printf. Any ideas?

simaneal

Russell^'15-Nov-05 3:50

15-Nov-05 3:50

Have you checked the format?

int %d
float %f
double %lf
....

Matteo

Cedric Moonen15-Nov-05 3:51

Cedric Moonen

15-Nov-05 3:51

What do you mean ? You watch your variable with the debugger and it doesn't match what you printed with printf ?
Are you sure you are using the right format specification for your variable ?

Also, post the code (use the code tag just above the emoticons), this will be easier for us.

simaneal15-Nov-05 4:22

simaneal

15-Nov-05 4:22

<br />
#include <stdlib.h><br />
#include <stdio.h><br />
#include <math.h><br />
#include <time.h><br />
#include <stddef.h><br />
#include <malloc.h><br />
<br />
#define nmax 118/* Maximum Number of pixels + 1 */<br />
#define npixels   117 /* Number of pixels in forest */<br />
#define tfactor  0.95  /* annealing temperature factor */<br />
#define xcoor 10/* maximum x coordinate */<br />
#define ycoor 117 /* maximum y coordinate */<br />
#define period  20 /* investment and management time period of interest */<br />
#define i 0.04 /* interest rate for discount factor */<br />
#define tmax 2 /*maximim number of feasible moves before stopping*/<br />
#define array_size 117<br />
<br />
<br />
<br />
int<br />
main (void)<br />
{<br />
<br />
int y;<br />
printf("starting\n");<br />
int *pix1;<br />
<br />
  if ((pix1 = (int*)malloc(array_size * sizeof(pix1))) == NULL) {<br />
    (void)printf("ERROR: Malloc failed");<br />
    (void)exit(EXIT_FAILURE);   /* or return EXIT_FAILURE; */<br />
 }<br />
<br />
int *pixm1;<br />
<br />
  if ((pixm1 = (int*)malloc(array_size * sizeof(pixm1))) == NULL) {<br />
    (void)fprintf(stderr, "ERROR: Malloc failed");<br />
    (void)exit(EXIT_FAILURE);   /* or return EXIT_FAILURE; */<br />
 } /*array for storing managment options chosen*/<br />
 for(y=0; y<ycoor; ++y)<br />
 {<br />
<br />
pix1[y]=1;<br />
pixm1[y]=1;<br />
printf("pix1= %d",pix1[y]);<br />
}<br />
//moves<br />
int ymoves;<br />
for(ymoves=0; ymoves<ycoor; ymoves++)<br />
{<br />
if(pix1[ymoves==1)<br />
{pixm1[ymoves]=0;<br />
printf("pixm1= %d", pixm1[ymoves]);<br />
}<br />
else<br />
{<br />
pixm1[ymoves]=1;<br />
}}<br />
}<br />
return;<br />
<br />

The code is a mini version of the code I am having problems with. When I watch the locals pixm1[] is supposed to switch from a 1 to 0 and it does not. The printf statement output is pixm1 =0

I do not understand why they would be different and which one reflects what the program has as pixm1[]?

simaneal

Russell^'15-Nov-05 4:41

15-Nov-05 4:41

Your code is not clear, but have you checked well this line?
if(pix1[ymoves==1)

Are you meaning
if(pixm1[ymoves]==1)

???

Try to write the code with a better format.

Matteo

simaneal15-Nov-05 5:01

simaneal

15-Nov-05 5:01

I meant if(pix1[ymoves]==1)

I am trying to get pixm1[] to change based on what pix1[] is. The full code is on another computer and is to long to display here.

simaneal

Russell^'15-Nov-05 5:10

15-Nov-05 5:10

I understand you.
But take in mind that at 99% is a your sintax error, so it is important to look at the real code.

I have to go home,
good luck.;)

David Crow15-Nov-05 5:02

15-Nov-05 5:02

simaneal wrote:
if ((pix1 = (int*)malloc(array_size * sizeof(pix1))) == NULL) {

This code is incorrect if you are simply wanting room for 117 ints. Use one of the following instead:

int pix1[117];
...
int *pix1 = (int *) malloc(array_size * sizeof(int));
if (pix1 == NULL)

simaneal wrote:
When I watch the locals pixm1[] is supposed to switch from a 1 to 0 and it does not.

How are you verifying this?

"Take only what you need and leave the land as you found it." - Native American Proverb

Editor-debugger setup

Russell^'15-Nov-05 3:26

Re: Editor-debugger setup

15-Nov-05 3:26

Hi,
I use Microsoft visual studio .net 2003.
When I'm in debug mode I can press F10 to execute single instructions (that are usually 5/10 disassembly instructions).
I have a problem with my software, and I need to execute disassembly instructions one by one.
Someone knows a way to change the editor setup and press F10(or something quite faster) to do this?
Thanks to all

douglasjordan15-Nov-05 3:30

douglasjordan

15-Nov-05 3:30

If you debug from the assembly view it will execute the instructions one at a time.

Re: Editor-debugger setup

Russell^'15-Nov-05 4:07