C / C++ / MFC

Deleting a item from ComboBox..

30-Jun-05 19:59

Check this page:
OpenType embedding SDK[^]

Note this:
To receive a copy of this license, please contact us[^]

Hope that helps,

--
jlr
http://jlamas.blogspot.com/[^]

mpallavi30-Jun-05 19:14

30-Jun-05 19:14

Hello friends,
I am saving telephone numbers in a combo box control. I want to delete the current selection in the combo box. DeleteString deletes item at specified index.
How do i go about this?
thank you
pallavi

ThatsAlok30-Jun-05 19:18

ThatsAlok

30-Jun-05 19:18

mpallavi wrote:
I want to delete the current selection in the combo box. DeleteString deletes item at specified index.

If you are using Single Selection combo Box :-

int nIndex = pmyComboBox.GetCurSel();
 if ((nIndex != LB_ERR))
 {
  pmyComoBox.DeleteString(nIndex);
 }

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Jose Lamas Rios30-Jun-05 19:20

30-Jun-05 19:20

mpallavi wrote:
I want to delete the current selection in the combo box. DeleteString deletes item at specified index.
How do i go about this?

int nCurrent = combo.GetCurSel();
if (nCurrent != CB_ERR)
	combo.DeleteString(nCurrent);

--
jlr
http://jlamas.blogspot.com/[^]

Jack Puppy30-Jun-05 19:24

Jack Puppy

30-Jun-05 19:24

If you want to delete the item from the drop list:

<br />
int nCurSel = m_myComboBox.GetCurSel();<br />
if (nCurSel != CB_ERR)<br />
m_myComboBox.DeleteString(nCurSel);<br />

If you just want to clear the text (if combo is not a drop list):

<br />
m_myComboBox.SetWindowText(_T(""));<br />

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

mpallavi30-Jun-05 19:51

30-Jun-05 19:51

Thank you all..
Can anyone tell me how do i get the data associated with the current selection .. i mean the value of the current selection.
thanx
pallavi

ThatsAlok30-Jun-05 20:03

ThatsAlok

30-Jun-05 20:03

mpallavi wrote:
Can anyone tell me how do i get the data associated with the current selection ..

See it this Help CComboBox::GetLBText

Here is small code to help :-

int nIndex=m_combo.GetCurSel();
if(nIndex==LB_ERR)
{
 CString str;
  m_combo.GetLBText(nIndex,str);
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Jose Lamas Rios30-Jun-05 20:13

30-Jun-05 20:13

ThatsAlok wrote:
if(nIndex==LB_ERR)

I think you mean if(nIndex!=LB_ERR)

Technically, in this case CB_ERR should be used instead of LB_ERR, but in practice both are defined as -1 Smile | :)

Hey, this peer programming thing does work! Smile | :)

--
jlr
http://jlamas.blogspot.com/[^]

ThatsAlok30-Jun-05 20:36

ThatsAlok

30-Jun-05 20:36

Jose Lamas Rios wrote:
I think you mean if(nIndex!=LB_ERR)

Yeap, Sorry for Silly Mistake Smile | :)

Jose Lamas Rios wrote:
Hey, this peer programming thing does work!

Yeap, thats why we are here Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

mpallavi30-Jun-05 20:40

30-Jun-05 20:40

Thanx.. its working. I have still more problems with ComboBox..
I am saving all these telephone numbers in a text file.. If you remember, few days back i was coding for persistent combo box. Its working perfactly fine but the problem is when i delete a number.
I am creating a temp file .. i want to write all the values in this file except for the current selection..
how do i go about this?
pallavi

ThatsAlok30-Jun-05 21:00

ThatsAlok

30-Jun-05 21:00

mpallavi wrote:
I am creating a temp file .. i want to write all the values in this file except for the current selection..
how do i go about this?

Let this variable m_arr of type CStringArray contain all the phone number present in combo box.

  <font color=#008000>// first get Phone Number to delete</font>
   CString szPhoneNo;

   int nIndex=m_combo.GetCurSel();
  if(nIndex!=CB_ERR)  <font color=#008000> //thanks to Mr. Rios :)</font>
 {
   m_combo.GetLBText(nIndex,szPhoneNo);
 }
else
  <font color=#008000> // no string to delete from file</font>
  return;


  <font color=#008000> // Open Temporary File</font>
 CString szTempPath;
 GetTempPath(szTempPath.GetBuffer(MAX_PATH),MAX_PATH);

  <font color=#008000> // release buffer get control of Path</font>
 szTempPath.ReleaseBuffer();

  <font color=#008000> //Include our File Name in path</font>
 szTempPath+=CString("temp.txt");

  <font color=#008000> // Now Open Text File</font>
 CStdioFile m_File;


 if(m_File.Open(szTempPath,CFile::modeCreate|CFile:modeWrite))
{

  for(int i=0;i<m_arr.GetUpperBound();i++)
  {
  <font color=#008000>   //copy data </font>
     if(m_arr.GetAt(i)!=szPhoneNo)
      m_File.WriteString(m_arr.GetAt(i));
   
  }
  
  m_File.Close();
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

mpallavi30-Jun-05 21:20

30-Jun-05 21:20

ThatsAlok wrote:
GetTempPath(szTempPath.GetBuffer(MAX_PATH),MAX_PATH);

I am getting the following error at above line:
'GetTempPathA' : cannot convert parameter 1 from 'char *' to 'unsigned long'
Please help.

ThatsAlok30-Jun-05 21:28

ThatsAlok

30-Jun-05 21:28

mpallavi wrote:
GetTempPath(szTempPath.GetBuffer(MAX_PATH),MAX_PATH);

Sorry, Just Exchange Argument Smile | :)

i.e.

GetTempPath(MAX_PATH,szTempPath.GetBuffer(MAX_PATH));

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

mpallavi30-Jun-05 22:26

30-Jun-05 22:26

Hi Alok..
temp file is getting created but its empty.. i am trying to find what went wrong.. Frown | :(

regards
pallavi

mpallavi1-Jul-05 1:44

1-Jul-05 1:44

oops..
My array of strings is empty.. I used
m_arr.Add(m_strPhoneNum);
to add phone numbers in the array.
I think the syntax is wrong..
pallavi.

David Crow1-Jul-05 16:52

David Crow

1-Jul-05 16:52

mpallavi wrote:
m_arr.Add(m_strPhoneNum);

what is m_arr, and how are you iterating throught it when writing to the file?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

How to use the metafile DC in WIN32 API programming

ThatsAlok1-Jul-05 18:39

ThatsAlok

1-Jul-05 18:39

mpallavi wrote:
to add phone numbers in the array.
I think the syntax is wrong..

Hi Pal,
First Add all the member of ComboBox to CStringArray or directly Enumerate them, When you are entering data in temporary File.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

pradish30-Jun-05 18:47

pradish

30-Jun-05 18:47

Hi all

can anybody help me out with a sample,that can store some GDI calls and later play it back, i came to know that metafile device context can be used for this purpose

thanks for your help

regads
pradish Confused | :confused:

Re: How to use the metafile DC in WIN32 API programming

Jose Lamas Rios30-Jun-05 19:15

Re: How to use the metafile DC in WIN32 API programming

30-Jun-05 19:15

Would this help?
How to Create & Play Enhanced Metafiles in Win32[^]

If you want to use MFC, these other articles might help:
CMetaFile class[^]
MFC Library: CMetaFileDC[^]

--
jlr
http://jlamas.blogspot.com/[^]

pradish30-Jun-05 20:07

pradish

30-Jun-05 20:07

2 Jose Lamas Rios

thanks for ansering my mail,but i need a sample that makes use of Win32 GDI API's only. no MFC.

regards
pradish

Re: How to use the metafile DC in WIN32 API programming

Jose Lamas Rios30-Jun-05 20:18

How to insert a "," in an array?

30-Jun-05 20:18

pradish wrote:
thanks for ansering my mail,but i need a sample that makes use of Win32 GDI API's only. no MFC.

That was the first link. It's about using metafiles with Win32 APIs (No MFC) and includes a downloadable sample...

--
jlr
http://jlamas.blogspot.com/[^]

Member 199230330-Jun-05 15:27

Member 1992303

30-Jun-05 15:27

Hi does anyone know how to insert commas in array?
example: 2,3
3,3
4,2
I need to show these commas when I execute the program.
Pls advice.

Re: How to insert a "," in an array?

Christian Graus30-Jun-05 15:51

Christian Graus

30-Jun-05 15:51

for (int i = 0; i < arraySize-1; ++i)
{
cout << array[i] << ", ";
}

cout << array[arraySize-1];

Christian Graus - Microsoft MVP - C++

Re: How to insert a "," in an array?

Jose Lamas Rios30-Jun-05 16:22