C / C++ / MFC Discussion Boards

Append one string at begin of another

skaanji13-Sep-03 7:34

skaanji

13-Sep-03 7:34

Is there some way to append one string at begin of another? using STL or W32API not MFC

Re: Append one string at begin of another

Scozturk13-Sep-03 8:09

Scozturk

13-Sep-03 8:09

<br />
char string1 = "Hello";<br />
char string2 = "I am scolinks";<br />
<br />
strcat(string1,string2);<br />
<br />
SetDlgItemText(hwnd,IDC_APPENDED, string1);<br />
<br />

I hope this helps....

Well... I am a beginner ...

Re: Append one string at begin of another

skaanji13-Sep-03 8:34

skaanji

13-Sep-03 8:34

strcat() appends string2 to end of 1st string
i need some function which does opposite.

but thanks anyway.

Re: Append one string at begin of another

JohnJ13-Sep-03 9:32

JohnJ

13-Sep-03 9:32

Duh

strcat(string2,string1);

See msdn Library[^] Sigh | :sigh:

John Hudson
An imaginary Chris Maunder standing in front of mirror is misquoted remarking: Nothing says "you're not normal" more than the little things. WTF | :WTF:

http://www.rainbow-innov.co.uk[^]

Re: Append one string at begin of another

Michael Dunn13-Sep-03 17:43

Michael Dunn

13-Sep-03 17:43

Nice buffer overrun there Wink | ;)

--Mike--
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
Ericahist updated (again) Sep 6!

Re: Append one string at begin of another

ZoogieZork13-Sep-03 9:32

ZoogieZork

13-Sep-03 9:32

Maybe I'm missing the point of your question? Confused | :confused:

std::string orig = "foo";
std::string ins = "String to insert at beginning ";
  /* ... */
std::string combined = ins + orig;

- Mike

Re: Append one string at begin of another

skaanji13-Sep-03 10:29

skaanji

13-Sep-03 10:29

This is exactly what i need. Smile | :)

mouse and keyboard

Ta_Tee47313-Sep-03 6:55

Ta_Tee473

13-Sep-03 6:55

1. i would like to know about mouse control that i can command "double click" for open "my computer" on my desktop

2. i would like to know the name of even for system key such as i press on keyboard "CTRL+SHIFT+P"......... i guess that WM_SYSKEYDOWN but not appear in even when i press "CTRL+SHIFT+P"?

thank a lot....

Checking the attributes of a file

Dilshad Husain13-Sep-03 5:29

Dilshad Husain

13-Sep-03 5:29

Hi all,

I would like to check the attributes of a file's (e.g date, time) creation.
I am sure it is possible but I just dont know how?

I am writing an application in VC++ .NET which would search for file in a specified folder and the results will be shown in chronical order.

I can search the file but I can't show the output in chronical order Confused | :confused:

.

I would really appreciate if someone can help me out.

Thanks

Dilshad

Re: Checking the attributes of a file

Michael Dunn13-Sep-03 5:49

Michael Dunn

13-Sep-03 5:49

If you're using FindFirstFile/FindNextFile to do the searching, those APIs return the created/modified/accessed times in the WIN32_FIND_DATA struct. Otherwise, you can call GetFileTime() to get those.

--Mike--
Ericahist | Homepage | RightClick-Encrypt | 1ClickPicGrabber
Ericahist updated (again) Sep 6!

program nt responding--error

coda_x13-Sep-03 2:09

coda_x

13-Sep-03 2:09

i wrote the following:

void CText_dialogDlg::OnSearch()
{
CString buffer;
FILE *stream;

char target[80],etchant[80],conc[300];
char name[80];
int temp;
int m_itemp;
float etchrate;
// float m_fetchrate;
CString name_str;
CString eof = "EOF";
CString m_strTarget;
CString m_strConc;
CString m_strEtchant;
CString searchkey;

stream = fopen( "e:\\fyp_2003\\database.txt", "r" );

searchkey=m_strkey;

do
{
fscanf( stream, "%s", name );
fscanf( stream, "%s", target );
//fscanf( stream, "%s", process );
fscanf( stream, "%s", etchant);
fscanf( stream, "%s", conc);
fscanf( stream, "%d", &temp );
fscanf( stream, "%f", &etchrate );
name_str = name;

}while (name_str != searchkey);

/* Output data read: */
CString str;

str.Format("%s %s %s %s %d %f",name,target,etchant,conc,temp,etchrate);

m_dialog_etch.m_strTarget = target;
//m_dialog_etch.m_str_process = process;
m_dialog_etch.m_strEtchant = etchant;
m_dialog_etch.m_itemp = temp;
m_dialog_etch.m_fetchrate = etchrate;
m_dialog_etch.m_strConc = conc;

UpdateData(FALSE);
m_dialog_etch.DoModal();
fclose( stream );

}

but my dialog_etch din appear, instead the program hanged.
i have 2 dialogs, dialog1 and dialog_etch, when user key in the edit box, my dialog etch will retrieve the info from a txtfile.

Re: program nt responding--error

coda_x13-Sep-03 2:10

coda_x

13-Sep-03 2:10

dialog1 is my text_dialogDlg

Re: program nt responding--error

PengFeidu13-Sep-03 2:36

PengFeidu

13-Sep-03 2:36

hi!
where is onsearch() called in? Maybe you have called this function in other procedure actived by EN_SETFOCUS message.

dupengfei

Re: program nt responding--error

Gary R. Wheeler13-Sep-03 3:34

Gary R. Wheeler

13-Sep-03 3:34

coda_x wrote:

do {
    fscanf( stream, "%s", name );
    fscanf( stream, "%s", target );
    //fscanf( stream, "%s", process );
    fscanf( stream, "%s", etchant);
    fscanf( stream, "%s", conc);
    fscanf( stream, "%d", &temp );
    fscanf( stream, "%f", &etchrate );
    name_str = name;

}while (name_str != searchkey);

This loop is where your program is hanging. If you never read a value where name_str==searchkey, the loop will continue forever. Eventually you will reach the end of file, and the fscanf functions will return errors.

Software Zen: delete this;

Re: program nt responding--error

coda_x13-Sep-03 16:50

coda_x

13-Sep-03 16:50

thanx! i solved that but now i have another problem, i use 2 if statements which contain different searchkey, so by right, my dialog_etch should display different information depending on the searchkey but it kept displaying the same info to mi...:

if(strcmp(buffer,"Wet etch Al H3PO4") == 0)
{
CString search = "Wet1";
/* Read data back from file: */
do
{
fscanf( stream, "%s", name );
fscanf( stream, "%s", target );
fscanf( stream, "%s", process );
fscanf( stream, "%s", etchant);
fscanf( stream, "%s", conc);
fscanf( stream, "%d", &temp );
fscanf( stream, "%f", &etchrate );
name_str = name;

}while (name_str != search);

/* Output data read: */
CString str;

str.Format("%s %s %s %s %s %d %f",name,target,process,etchant,conc,temp,etchrate);

m_etchDlg.m_str_target = target;
m_etchDlg.m_str_process = process;
m_etchDlg.m_str_etchant = etchant;
m_etchDlg.m_f_etchrate = etchrate;
m_etchDlg.m_str_conc = conc;
m_etchDlg.m_temp = temp;
UpdateData(FALSE);
m_etchDlg.DoModal();
fclose( stream );

}

if(strcmp(buffer,"Wet etch Al H3PO4/HF") == 0)
{
CString search = "Wet2";
/* Read data back from file: */
do
{
fscanf( stream, "%s", name );
fscanf( stream, "%s", target );
fscanf( stream, "%s", process );
fscanf( stream, "%s", etchant);
fscanf( stream, "%s", conc);
fscanf( stream, "%d", &temp );
fscanf( stream, "%f", &etchrate );
name_str = name;

}while (name_str != search);

/* Output data read: */
CString str;

str.Format("%s %s %s %s %s %d %f",name,target,process,etchant,conc,temp,etchrate);

m_etchDlg.m_str_target = target;
m_etchDlg.m_str_process = process;
m_etchDlg.m_str_etchant = etchant;
m_etchDlg.m_temp = temp;
m_etchDlg.m_f_etchrate = etchrate;
m_etchDlg.m_str_conc = conc;
m_etchDlg.m_temp = temp;
UpdateData(FALSE);
m_etchDlg.DoModal();
fclose( stream );

}

is there anything wrong with it?

Ques regarding Icon and Button

SatyaDY13-Sep-03 0:19

SatyaDY

13-Sep-03 0:19

Hi,
I want to create an application which shows the status of my network devices. For this I want to put clickable icons. Once I click that it should generate a dialouge box showing the details of the device. Now, my doubt is how to create small clickable item with some icon over it?? Can it be a regular resource?? How to generate that small buttons??
Thanks and Regards,
SatyaDY.

Re: Ques regarding Icon and Button

Larry J. Siddens13-Sep-03 3:39

Larry J. Siddens

13-Sep-03 3:39

Sounds like you want something like a bitmap button. Search this site for that. Another good site to look is www.codeguru.com.

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

"string" question.

WREY12-Sep-03 23:49

WREY

12-Sep-03 23:49

How do I determine a string is empty, coming from the input stream?

Purely for simplicity, let's say I have the following:

string str;

do
{	
    cout<< "\n\n Enter Something: ";
    cin>>str;
} while(str.size()==0);

What I'm testing for, is whether the string is empty (which would include whitespace as well). IOW, if 'return' were to be hit, that is a whitespace, and I would like the message to be repeated.

The sample illustration is merely a test to see how I can determine when a string is truly empty, and while it is syntactically correct, the message, "Enter Something" does not get repeated if 'return' was hit.

'str.length()' doesn't do it either.

Thanks.

Unsure | :~

William

Fortes in fide et opere!

Re: "string" question.

Larry J. Siddens13-Sep-03 3:37

Larry J. Siddens

13-Sep-03 3:37

Hi William,

The cin will not return until an EOL or EOF character is entered. This usally is the carriage return. To tell if the string is empty, you can cycle through the string looking for any non-white space characters. Or, strip off the white characters. I have done this before, but I have lost that code.

Hope this helps. (Sorry I cannot give you the exact way, I don't have my STL book at home.)

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

Re: "string" question.

Joaquín M López Muñoz13-Sep-03 6:13

Joaquín M López Muñoz

13-Sep-03 6:13

Try with

getline(cin,str);

which won't eat whitespace (except the final return key).

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: "string" question.

DougW4813-Sep-03 13:56

DougW48

13-Sep-03 13:56

WREY wrote:
How do I determine a string is empty, coming from the input stream?

You could try writing your own version of the getline function. I've done what I think you are trying to do by doing inputstream.get( char ). You can continue scanning the input until you get a newline character or whatever you want. The only problem is that a carriage return will have to have been pushed for the input to go into the stream. And if you want to keep track of the entire input, you can just keep adding each character to a string. I hope this helps, good luck.

Douglas A. Wright
dawrigh3@kent.edu

Handling LVN_ITEMCHANGED message

Md Saleem Navalur12-Sep-03 23:26

Md Saleem Navalur

12-Sep-03 23:26

hi..
Assuming there is alist ctrl in a dlg..
How do i handle a LVN_ITEMCHANGED message in the OnCmdMSg,, instead of
actually handling LVN_ITEMCHANGED message for the list ctrl ??

Any help is appreciated.

Thanx
saleem

Re: Handling LVN_ITEMCHANGED message

Gary R. Wheeler13-Sep-03 3:47

Gary R. Wheeler

13-Sep-03 3:47

LVN_ITEMCHANGED is a notification sent by the list control to its parent, in this case your dialog. OnCmdMsg is a handler for a command message. Perhaps if the command handler and the notification handler need to do something in common, you could create a single function that both handlers use?

Software Zen: delete this;

Message Handlers for Menus in MFC

cberam12-Sep-03 23:11

cberam

12-Sep-03 23:11

Hi,

In my MFC app,i create Menus dynamically.In this case how to trap the messages when menu item is selected or clicked.I overrddden OnCmdMsg() routine..but somehow i don't get the handle for the selected MenuItem..Pl help.

Thanks in advance
Ram

Re: Message Handlers for Menus in MFC

Larry J. Siddens13-Sep-03 3:41

Larry J. Siddens

13-Sep-03 3:41

Why are you not using the wizard to create the handle? The wizard (not sure about .net still learning how they have changed it). This creates the method in the .h, the macro to handle and the skeleton method. Then all you need to do is add the meat! Is there something extra that you are trying to accomplish?

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.