C / C++ / MFC Discussion Boards

George_George2-Sep-07 23:27

2-Sep-07 23:27

Hello everyone,

If I am developing a native unmanaged COM using Visual Studio 2005 C++, is it a mandatory to register type lib into HKEY_CLASSES_ROOT\TypeLib?

I have already registered related entries into HKEY_CLASSES_ROOT\CLSID\<co clas="" id="">, HKEY_CLASSES_ROOT\Interface\<interface id="" of="" co="" class="" exposed=""> and HKEY_CLASSES_ROOT\<co class="" name="">.

What is the function of the entry under HKEY_CLASSES_ROOT\TypeLib during COM object discovery and creation process?

thanks in advance,
George

Stack overflow while reading bamp image

Maynka2-Sep-07 23:26

Maynka

2-Sep-07 23:26

Hello all,

I am getting error message:

Unhandled exception:Stack overflow.It is due to the declaration of too large array sizes.
But how can i overcame that problem

The code presented here is given below:

FILE *fp1,*fp2,*fp_write,*fpw,*fp_col;
int width,height;
int buffer,buffer1,buffer3;
int k=0,p=0;
unsigned int blueValue=0,redValue=0,greenValue=0;
unsigned int grayValue=0;
unsigned char *pChar;
unsigned char someChar;
long int iHist[256];
float hist[256];
long int total_pixels=0;
int col[257499];
int C[561][459];
int m=0;

fp1=fopen("D:\\Pictures\\mod.bmp","rb");
if(fp1==NULL)
{
printf("file doesn't open");
return;
}

fseek(fp1,1078,SEEK_SET);

k=0;
while(!feof(fp1))
{
fread(&buffer,1,1,fp1);
col[k]=buffer;
k++;
}

int i=0;
int j=0;
k=0,m=0;
for(m=0;m<258878;m++)
{
C[i][j]=col[k];
j++;
k=k+561;
if((j%459==0) &(j!=0))
{
i=i+1;
k=i;
j=0;
}
if(i>561)
break;
m++;
}

Regards

Re: Stack overflow while reading bamp image

chandu0042-Sep-07 23:48

chandu004

2-Sep-07 23:48

your loop seems to exceed the array boundarys.
any way,
debug it and see.
how ever arrays of that size are not suggested.
please tell me your idea behind the algo, such that, i can suggest you something.

Re: Stack overflow while reading bamp image

Russell^'2-Sep-07 23:55

Russell^'

2-Sep-07 23:55

Probally too big static variables.
take a look at this thread (yesterday)
stack vs heap[^]

Russell

Re: Stack overflow while reading bamp image

Mark Salsbery3-Sep-07 9:05

Mark Salsbery

3-Sep-07 9:05

Maynka wrote:
int col[257499];
int C[561][459];

In addition to Russell's reply...

These too arrays are WAY to big for a typical stack: 2,059,992 bytes!!

You'll probably want to allocate thes on the heap Smile | :)

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Stack overflow while reading bamp image

Maynka3-Sep-07 18:45

Maynka

3-Sep-07 18:45

Hi,
Thanks for your reply.How can i allocate variables on heap in VC++.

Regards,
Mayank

Re: Stack overflow while reading bamp image

Mark Salsbery3-Sep-07 20:31

Mark Salsbery

3-Sep-07 20:31

You can use the new operator...

See this[^] thread for more info.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Picture Control / Client Rectangle

TheShihan2-Sep-07 23:22

TheShihan

2-Sep-07 23:22

Hi,

I'm currently trying to implement a pan function for panning images which are displayed in a picture control area (drawing with GDI+).

I've managed to change the mouse cursor, it should be a hand when the cursor is over the picture control and an arrow everywhere else. A part of that seems to work. I check if the mouse position is inside the area of the picture control but somehow the area "thinks" it's startpoint (upper left) is located @ x: 0 y: 0; in fact it is placed somewhere in the middle of the dialog box.

Here is the snippet:

/**************************************************************************************/
void CTrackAndTraceDlg::OnMouseMove(UINT nFlags, CPoint point)
/**************************************************************************************/
{
	HCURSOR hcur = NULL;

	CRect rc;
	m_pictureControl.GetClientRect(&rc);
	rc.NormalizeRect();

	//Get current mouse position
	POINT MousePosition = point;

	BOOL isOnPictureControl = PtInRect(&rc, MousePosition);

	if(isOnPictureControl && m_bPicLoaded && hcur == NULL)
	{
			// mouse is over the picture control AND a picture is loaded
			hcur = LoadCursor(AfxGetApp()->m_hInstance,(LPCTSTR)IDC_CUR_PAN);	
			SetCursor(hcur);
	}
	else
	{
			SetCursor(AfxGetApp()->LoadStandardCursor(IDC_ARROW));
			hcur = NULL;
	}

	CDialog::OnMouseMove(nFlags, point);
}

As you see I get the rectangle from the m_pictureControl (which is a var for the Picture Control on the dialog). But why it gives back the wrong x,y -> the rc.Width and rc.Height are correct.

Any ideas?

Thx, Shi

Re: Picture Control / Client Rectangle

chandu0042-Sep-07 23:46

chandu004

2-Sep-07 23:46

can u just put your query into different words such that, they are more cleaar to understand?

Re: Picture Control / Client Rectangle

TheShihan3-Sep-07 0:02

TheShihan

3-Sep-07 0:02

in short:
- I'm using a Picture Control on my Dialog
- It's placed in the middle of the Dialog
- I'm getting the position and dimension of the Picture Control with "CRect rc;" AND "m_pictureControl.GetClientRect(&rc);"
- When I Debug I see that the position of the "rc" is TOP: 0 LEFT: 0 -> Why that, I can clearly see it's not on that Postion of the Dialog.

-> So while this gives me back the "wrong" information about the location, I cannot properly use my pan function (draging image to move it).

Hope that made it a bit clearer Smile | :)

Shi

Re: Picture Control / Client Rectangle

chandu0043-Sep-07 0:13

chandu004

3-Sep-07 0:13

that 0,0 you are seeing is that of the control with respect to itself not with respect to the dialog.
but my doubt is how you cn write your logic to pan that image using the picture control.
how ever,
i have my own Active X control, which can take a large bitmap and has the feature of panning.

msi.lib

himanshu p taunk2-Sep-07 22:58

himanshu p taunk

2-Sep-07 22:58

can any body tell me where to get msi.lib

thanks Unsure | :~

himanshu p.taunk

Re: msi.lib

Hamid_RT3-Sep-07 0:07

Hamid_RT

3-Sep-07 0:07

You can ask of Google.

Can anyone tell me whats wrong with this mime format

monsieur_jj2-Sep-07 21:17

monsieur_jj

2-Sep-07 21:17

I have generated this using my version of atlmime.h:

Date: Mon, 3 Sep 2007 14:03:05 +0800
Subject: TestCase1
X-Priority: 3
From: tdelavin <tdelavin@redmaptest.net>
To: User1 <user1@redmaptest.net>
CC: User2 <user2@redmaptest.net>
Message-ID: <ED831DF63867FA4798271894F09D74343C6D1CC461@winsvrpdc.redmaptest.net>
MIME-Version: 1.0
Content-Type: multipart/mixed;
	boundary="------=_Next_Part_0021353203.467"

--------=_Next_Part_0021353203.467
Content-Type: multipart/related;
	boundary="------=_Next_Part_0021353687.334"


--------=_Next_Part_0021353687.334
Content-Type: text/html;
	charset="Windows-1252"
Content-Transfer-Encoding: 8bit

<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">

content removed

--------=_Next_Part_0021353687.334
Content-Type: application/octet-stream;
	charset="Windows-1252"
	name="RE  URGENT follow up required FW  Still open tickets - 15910   16035   15686.msg"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="RE  URGENT follow up required FW  Still open tickets - 15910   16035   15686.msg"

0M8R4KGxGuEAAAAAAAAAAAAAAAAAAAAAPgADAP7/CQAGAAAAAAAAAAAAAAACAAAAAAAAANAEAAAA
EAAAEQAAAAIAAAD+////AAAAAAEAAACAAAAA////////////////////////////////////////

content minimized

--------=_Next_Part_0021353687.334
Content-Type: image/jpeg;
	charset="Windows-1252"
	name="image003.jpg"
Content-Transfer-Encoding: base64
Content-Disposition: inline;
	filename="image003.jpg"
Content-ID:<image003.jpg@01C7D464.924CE700>

/9j/4AAQSkZJRgABAQEAYABgAAD/2wBDAAoHBwgHBgoICAgLCgoLDhgQDg0NDh0VFhEYIx8lJCIf
IiEmKzcvJik0KSEiMEExNDk7Pj4+JS5ESUM8SDc9Pjv/2wBDAQoLCw4NDhwQEBw7KCIoOzs7Ozs7

content minimized


--------=_Next_Part_0021353687.334
Content-Type: image/gif;
	charset="Windows-1252"
	name="image004.gif"
Content-Transfer-Encoding: base64
Content-Disposition: inline;
	filename="image004.gif"
Content-ID:<image004.gif@01C7D464.924CE700>

R0lGODlhfAA0AHcAMSH/C01TT0ZGSUNFOS4wDQAAAAFzUkdCAK7OHOkAIf8LTVNPRkZJQ0U5LjAX
AAAAC21zT1BNU09GRklDRTkuMEI8pPUAIf8LTVNPRkZJQ0U5LjAVAAAACXBIWXMAAA7DAAAOwwHH

content minimized

--------=_Next_Part_0021353203.467--

Thanks again

Need help about SIP protocol on PDA

goooff2-Sep-07 21:09

goooff

2-Sep-07 21:09

I'm a fourth year student and I've a project about PDA programming like skype.
I decide to implement with c++ and I have to use SIP Protocol to create session between endpoints
so that's a problem>>> I don't know what Library I should use (I can't find any library ). I found RTC(Real Time Communication) of Microsoft but I'm not sure that it's can use for PDA
or anyone who can give me an example code about register to SIP server or any book about SIP programming.
please help me...T-T

wimut

Including files present in subfolders in VC++

vipin_nvk2-Sep-07 20:48

vipin_nvk

2-Sep-07 20:48

Hello

Assuming my projects workspace is present in the path "C:\myfolder\myproject" as myproject.dsw, how do we include the paths for a .h file in the following scenarios,

1. Assume you have a file myproject.cpp at "C:\myfolder\myproject" and you want to include a .h file present in "C:\myfolder" and another .h file present in "C:\myfolder\myproject\library".

2. Assume you have a file myproject.cpp at "C:\myfolder" and you want to include a .h file present in "C:\myfolder\myproject" and another .h file present in "C:\myfolder\myproject\library".

3. Assume you have a file myproject.cpp at "C:\myfolder\myproject\library" and you want to include a .h file present in "C:\myfolder" and another .h file present in "C:\myfolder\myproject".

Thanx

Re: Including files present in subfolders in VC++

chandu0042-Sep-07 21:38

chandu004

2-Sep-07 21:38

know one logic i.e., "." refers to the current directory, and ".." refers to the parent directory.
so using above, you can use something like,
#include "..\another.h" or ".\library\something.h"
definately this will work.

Re: Including files present in subfolders in VC++

jhwurmbach3-Sep-07 2:45

jhwurmbach

3-Sep-07 2:45

In "Project properties" - "C/C++" - "General" - "Additional Include Directories" add ".." as the first entry.
Now, the cases are
1. #include "file1.h" and #include "library/file1.h"
2. #include "myproject/file3.h" and #include "myproject/library/file4.h"
3. Here, instead of ".." a name from the MACROS would be appropriate" $(InputDir) prossibly.
Then #include "myproject/file5.h" and #include "myproject/library/file6.h"

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

/Gz;/Gd;/Gr

nitin32-Sep-07 20:40

nitin3

2-Sep-07 20:40

Is there any preprocessor directive to set /Gz compiler option

Gantt Chart

c072-Sep-07 20:21

c07

2-Sep-07 20:21

I'm looking for good Gantt Chart library. Suggest me..

Thank you.

Re: Gantt Chart

chandu0042-Sep-07 21:35

chandu004

2-Sep-07 21:35

if you mean an active X control, then spell out your requirements and we shall develop one such control.

Re: Gantt Chart

BadKarma2-Sep-07 23:48

BadKarma

2-Sep-07 23:48

Your kindness is heartwarming Rose | [Rose]

codito ergo sum

Re: Gantt Chart

Hamid_RT2-Sep-07 21:37

Hamid_RT

2-Sep-07 21:37

Did you search on the internet?

Re: Gantt Chart

c072-Sep-07 22:36

c07

2-Sep-07 22:36

Yeah I searched on the internet but found only commercial ones.

I'm looking for chart similar to following one..I need basic library which I can extend for my purpose..
http://www.ilog.com/products/views/gantt/index.cfm

I Need to make the CListCtrl non sortable at run time

Javed Akhtar Ansari2-Sep-07 20:06

Javed Akhtar Ansari

2-Sep-07 20:06

Hi Dear,

I need to make the report view of the list control non sortable( Disable Sorting) at run time. But i could not find out any API.
I tried to set LVS_NOSORTHEADER in PreCreateWindow() but it is making the list view non sortable all the time.

I need to make it Non soratble only at run time.
Like if I click on a particular node in a tree view then the list view dispalyed corrresponding to that should be non sortable.

Can Any body help me

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