C / C++ / MFC

15-Jan-06 5:37

Typically, this means that you are not exporting anything from the DLL. Is that the case?

Regards,
Nish

Re: dll project does not output a .lib file

Themis15-Jan-06 6:40

Themis

15-Jan-06 6:40

Yeap actually that was the case, I forgot to export the symbols. Thanks for the tip, I could have gone days without realizing it.

CHeaderCtrl::SetImageList

paper6715-Jan-06 4:09

paper67

15-Jan-06 4:09

Hi,

I attach an image list to the CHeaderCtrl with a call to CHeaderCtrl::SetImageList.
Later I use CListCtrl::SetImageList to attach an image list to the CListCtrl object used for the items.
The 2 image lists are different. Every time I call CListCtrl::SetImageList my image list of the
header control gets overwritten with that of the list control.
Is this a bug ?? or is it impossible to maintain 2 different image lists.

Thx

Re: CHeaderCtrl::SetImageList

Owner drawn15-Jan-06 19:43

Owner drawn

15-Jan-06 19:43

Are you sure that you are not doing something wrong.

Please recheck your code to see.

Or maybe you can change the sequence a bit. Try assigning an imagelist to the list control first and then the header control.

Jesus Loves Rose | [Rose]

<marquee direction="up" height="40" scrolldelay="1" step="1" scrollamount="1" style="background:#aabbcc;border-bottom:thin solid 1px #6699cc">
--Owner Drawn Rose | [Rose]

--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord Rose | [Rose]

Re: CHeaderCtrl::SetImageList

paper6716-Jan-06 8:05

paper67

16-Jan-06 8:05

I have installed an OnSetImageList message handler for the header control. THis one gets called when an image list is installed for the header control and it gets called a second time when the CListctrl object is assigned his image list. To install the image list of the header control I do the following call from within the OnCreate message handler of a derived CListCtrl Object (CXListCtrl) :

m_HdCtrl.SetImageList(&m_ilSymb);

m_HdCtrl has been subclassed to the Header control.

To install the image list of the CListCtrl object itself I do the following call in the OnCreate handler of a CXListCtrl derived class. (CPCntCtrl)

SetImageList(&m_ilCntSymb, LVSIL_SMALL);

Can someone tell me please what is going on here ?

Thx

single/multiple selection in List control

IlanTal15-Jan-06 4:08

IlanTal

15-Jan-06 4:08

I have a List control where sometimes I want to limit it to a single selection and other times to multiple selections.
You choose the Single Selection parameter at design time, but I'm sure there must be a way to change in on the fly. It is most like a SENDMESSAGE, but what is the message I need to send?

Thanks,
Ilan

Re: single/multiple selection in List control

FarPointer15-Jan-06 4:28

FarPointer

15-Jan-06 4:28

hi ,

Try SetWindowLong Function .

Regards
FarPointer.

Re: single/multiple selection in List control

sps-itsec4615-Jan-06 6:55

sps-itsec46

15-Jan-06 6:55

Hi Ilan,

the following will result in a single-selection list:

m_myList.ModifyStyle(0, LVS_SINGLESEL);

this one will result in a multi-selection list:

m_myList.ModifyStyle(LVS_SINGLESEL, 0);

first parameter removes the passed style, second parameter adds the passed style.

Regards, mykel

If they give you lined paper, write the other way!

Re: single/multiple selection in List control

IlanTal15-Jan-06 19:17

IlanTal

15-Jan-06 19:17

Hi Mykel,
This is EXACTLY what I was looking for! It solves the problem.

Thank you very much,
Ilan

need suggestion(constructer? / better?)

neodeaths14-Jan-06 23:33

neodeaths

14-Jan-06 23:33

int main()
{
int *ptr[2];

if(ptr[0] = null)
{
cout<<"this is empty"<

includeh1015-Jan-06 3:38

includeh10

15-Jan-06 3:38

it is related to compiler.
E.g.
int i; //or a pointer
the value of i may be initialized as zero by some compiler, but not all.

good habit is that you initialize them yourself.
u can change code as:

===========================
int main()
{
int *ptr[2];

//====== initialize all to null
int i,iNum=sizeof(ptr)/sizeof(ptr[0]);
for(i=0;i<iNum;i++) ptr[i]=0;
//====== end enitilization

if(ptr[0] = null)
{
cout<<"this is empty"<<endl;
}

<hr style="margin Blush | :O

; width:405; text-align: left;">A nice <b><a style="text-decoration: underline;" href="http://www.syncedit.com/software/hypercare/" target="_new">tool</a></b> for optimizing your Microsoft <font color="#ff0000">html-help</font> contents.

Includeh10

-- modified at 9:41 Sunday 15th January, 2006

Michel Wassink15-Jan-06 4:09

Michel Wassink

15-Jan-06 4:09

In addition to previous comment also change:
if(ptr[0] = null) D'Oh! | :doh:

to:
if(ptr[0] == null):->

Michel Wassink

We must make user friendly software. Where are friendly users?

Gary R. Wheeler15-Jan-06 3:54

Gary R. Wheeler

15-Jan-06 3:54

1. In a debug compile, the ptr[] array will be initialized to zero's. In a release compile, it will be random data. As a rule, always initialize your data.

2. if (ptr[0] = NULL) does an assignment inside an if, which is not good practice.

int main()
{
  int *ptr[2];
  for (int i = 0; i < 2; i++) {
    ptr[i] = NULL;
  }
  //...
  if (ptr[0] == NULL) {
    cout << "this is empty" << endl;
  }
}

Software Zen: delete this;

Fold With Us![^]

Nish Nishant15-Jan-06 4:05

15-Jan-06 4:05

Try this :-

int* ptr[2]={0};
cout << ptr[0] << endl;
cout << ptr[1] << endl;

Regards,
Nish

dynamic memeory aloocation question

vikas amin16-Jan-06 0:52

vikas amin

16-Jan-06 0:52

if u can use the class

CPtrArray

it has a construtor

Vikas Amin
Embin Technology
Bombay

neodeaths14-Jan-06 23:12

neodeaths

14-Jan-06 23:12

#include<iostream>
#include<string>
using namespace std;

int mian()
{
string input;
char *driver;

cout<<"please input the drivers name :";
cin>>input;
cin.ignore();

driver = new char[strlen(input)+1];

return 0;
}

how come this dont work?

i am just trying to find the strlenght of input pls help me find and solve this

includeh1015-Jan-06 4:00

includeh10

15-Jan-06 4:00

why do not add
cout<<strlen(input);
to see="" its="" length?
=""

<hr="" style="margin Blush | :O

; width:405; text-align: left;">A nice tool for optimizing your Microsoft html-help contents.

Includeh10

Nish Nishant15-Jan-06 4:11

15-Jan-06 4:11

Try :

string input;
char *driver;

cout << "Please input the driver's name : ";
cin >> input;

driver = new char[input.length() + 1];
strcpy(driver, input.c_str());
driver[input.length()] = 0;

cout << driver << endl;

Regards,
Nish

neodeaths15-Jan-06 4:31

neodeaths

15-Jan-06 4:31

i tryed it and it works thanks and i understand it too

but i wanna know wht do i need this?
driver[input.length()] = 0;

y shld assigh to 0??

Nish Nishant15-Jan-06 5:35

15-Jan-06 5:35

neodeaths wrote:
i tryed it and it works thanks and i understand it too

but i wanna know wht do i need this?
driver[input.length()] = 0;

y shld assigh to 0??

C/C++ strings are considered to be 0-terminated. If you don't terminate your string with a 0, any function that expects a 0-terminated string would run into issues.

Regards,
Nish