ATL / WTL / STL

Re: Enable moving marquee progress bar (C++, ATL/WTL, XP, VS2008)

6-Oct-10 5:02

So, is it working yet or not?

Just say 'NO' to evaluated arguments for diadic functions! Ash

karuuzo6-Oct-10 5:23

karuuzo

6-Oct-10 5:23

Yes. I change Windows theme to "Windows XP style" and progress bar start working.

karuuzo

Regarding Tools

Anil Kumar.Arvapalli3-Oct-10 21:16

Anil Kumar.Arvapalli

3-Oct-10 21:16

Guys,

Iam a Fresher looking to build a project on my own as a open source. I want some tools informations which are like ProcessMonitor kind of, can any one let me know about the more tools available in C++/VC++.. Thanks in Advance.

Iam almost trying for microsoft Internship Please help me .... Please..

Re: Regarding Tools

LunaticFringe4-Oct-10 12:28

LunaticFringe

4-Oct-10 12:28

There are a couple of tools that hang out in the Back Room...

Wink | ;)

L u n a t i c F r i n g e

Re: Regarding Tools

federico.strati5-Oct-10 3:19

federico.strati

5-Oct-10 3:19

Get a copy of whole tomato visual assist, it is worth if you're on C++.

Dynamic Owner-Drawn CListBox Derivative - Owner Draw Problem

Kyudos3-Oct-10 13:00

Kyudos

3-Oct-10 13:00

I'm trying to create a pop up list box to display some drawing line styles which are stored in an XML file. I want to display the line and then the name of the style (i.e., the items have strings).

So I derived a class from CListBox, added in some sizing code and the relevant DrawItem function, and dynamically CreateEx'd this to popup off a button in my test dialog app.

However, I'm not getting any owner-draw messages to my popup - it's blank! If I take off the LBS_OWNERDRAWFIXED|LBS_HASSTRINGS style the popup is correctly populated with the style name strings. I added an owner-draw list box to the dialog and re-classified it to use my listbox class, and barring some item sizing issues it draws the items the way I want them drawn.

So what am I not appreciating about the dynamically created version? Where are is WM_DRAWITEM messages going?

Cheers!

Re: Dynamic Owner-Drawn CListBox Derivative - Owner Draw Problem

Kyudos3-Oct-10 17:24

Kyudos

3-Oct-10 17:24

I can sort of make this work, by putting the owner-draw list box 'full-screen' on a borderless dialog (ick!) and then positioning that. But then I run into problems dismissing the dialog when the user clicks off it, and sorting out where the messages go. It would be nicer and neater if the dynamic way worked...

Customize CMFCPropertyGrid

silversamand1-Oct-10 21:37

silversamand

1-Oct-10 21:37

Hi,
I need to customize a CMFCPropertyGrid such that be able to display a simple button inside.
when user selects given grid, user can press button inside and then a dialog box will be displayed!
exactly like Folder dialog box.

how can i do this?

best regards

How to associate CMap key value to CComboBox

ptr_Electron27-Sep-10 0:49

Re: How to associate CMap key value to CComboBox [modified]

27-Sep-10 0:49

Can you pls help to How to associate CMap key value to CComboBox MFC

Thanks in advance.

Cool_Dev27-Sep-10 4:33

27-Sep-10 4:33

its not possible to store CComboBox objects into CMap or CList since copy constructor for CComboBox is not available. However you may do it as,

//if your key is of integer type
CMap<int, int, CComboBox*, CComboBox*> m_map;

sample to store data

CComboBox *pBox = new CComboBox();
CRect rc(0, 0, 100, 50);
UINT nId = 100;
pBox->Create(SW_HIDE, rc, this,  nId);
m_map[m_id] = pBox;

modified on Monday, September 27, 2010 11:24 PM

ptr_Electron27-Sep-10 18:11

27-Sep-10 18:11

May be I did not put my question correctly.

let me put it like this.... I have a CMap

CMap<CString,LPCSTR,CString,CString&> map;

with <key1, value1="">,<key2, Value2>......

I have a combo box cmb, now I want to do some thing like

for(int j=0;j<map.GetCount();j++)
	{
		cmb.AddString(map[i]);
		//map.GetNextAssoc(pos, strTemp,strTemp2);	// here again I need to pass key
                // I dont need value to add in combo onlye key is ok
	}

and now the combo should contina key1, key2.key3......

Cool_Dev27-Sep-10 18:53

27-Sep-10 18:53

can't u do like

POSITION pos = map.GetStartPosition();
CString csKey, csValue;
while(pos)
{
    map.GetNextAssoc(pos, csKey, csValue);

    //add key to combo box
    cmb.AddString(csKey);
}

ptr_Electron27-Sep-10 22:14

27-Sep-10 22:14

I worked, thank you.... but was more worried about the the key value that need to be passed.
But passing the dummy key value as per ur advice worked.

Thanks
Smile | :)

Cool_Dev27-Sep-10 22:36

27-Sep-10 22:36

if you don't need values, i mean only keys, why don't you use classes like CStringArray or CList instead of CMap for that purpose? Frown | :(

Have a look at CComboBox::SetItemData() and GetItemData(), using which u can map a value (which can be an index or pointer to a structure or anything) to each item added to combo box.

ptr_Electron28-Sep-10 0:31

28-Sep-10 0:31

Well I mean, I dont need values to fill the combo. later in business logic I need to pick the associated value on SelectCombo depending on value selected, so i need a map

ptr_Electron28-Sep-10 1:53

28-Sep-10 1:53

Ya I got your point, I am using as below

// setting

while( pos )	
	{
		appConfig.m_map.GetNextAssoc(pos, strKey, strValue);	
		cmb.AddString(strKey);	
		appConfig.m_map.Lookup( strKey, strValue );
	        cmb.SetItemData(iCount,(DWORD)(LPCTSTR)strValue );
		iCount++;
	}

//Getting
temp =  cmb.GetItemData( index );
CString str= (CString *) temp;

but I was unable to get the stored vaule, getting 0 in temp. can you please help me

Cool_Dev28-Sep-10 2:12

28-Sep-10 2:12

strValue is just a local variable, and changing inside the loop too. No meaning in storing its address as combo box item's data.

You are keeping key-value pair in combo box, so you can get the value any time by calling

CString strKey;
cmb.GetLBText( index, strKey );
CString strValue;
appConfig.m_map.Lookup( strKey, strValue );
//got strValur Smile | :)

isn't it enough?

ptr_Electron28-Sep-10 2:24

CFile Insert not Write...

28-Sep-10 2:24

I reverted back to my code again, Thanks for your help Smile | :)

loid grey manuel26-Sep-10 22:17

loid grey manuel

26-Sep-10 22:17

hello, i'm having a hard time figuring out how to insert a character/string on my CFile,

i have no problem writing the character set at the end or at the beginning of the file, but when i try to add it in between, it overwrites the file.

Example:

i have "JON SMITH" on my file, when i try to insert "H" at index 2, it should look like this "JOHN SMITH", but what happens is this "JOH SMITH" it overwrites, it does not insert.

here is my code

//write to file	
	CString txtInsert;
	m_txtInsert.GetWindowText(txtInsert);
	int szSize = txtInsert.GetLength();

	//create the file
	if (!cfile_object.Open(l_ExePath + "Logs\\cfile_example.txt", CFile::modeWrite))
	{
		AfxMessageBox(_T("Cannot Open File for Reading!\nPls. Check Directory of File!"));
	}
	else
	{
	cfile_object.Seek( 2, CFile::begin );
    cfile_object.Write(txtInsert, szSize);
	//close file
	cfile_object.Close();

i needed to type "H SMITH" just to get the result "JOHN SMITH" but all i want is the insert the character "H" on the right place..

any help or hints will be much appreciated, thankyou

Re: CFile Insert not Write...

Richard MacCutchan26-Sep-10 22:59

Re: CFile Insert not Write... [RESOLVED]

26-Sep-10 22:59

File I/O does not work this way, you can only overwrite the data that is already there. You can also add more information at the end by appending data to the existing file. However, if you want to modify what is already there then you must read it in, modify the contents in memory and write out the new information, either to the original, thus overwriting it, or to a new file.

Just say 'NO' to evaluated arguments for diadic functions! Ash

loid grey manuel27-Sep-10 15:56

loid grey manuel

27-Sep-10 15:56

resolution:

READ from whatever starting pointing from your file, save to buffer, then add whatever character you want at the beginning of the buffer. then WRITE the buffer to your file, this way you can insert...

//points to index where to start reading
	cfile_object.Seek( insIndex, CFile::begin );
	
	//Reads the content of file starting at the SEEK index, in my case its index [2]..
	int flen = cfile_object.GetLength();
	char *fBuf= new char[flen];

	UINT file = cfile_object.Read(fBuf,flen);
	fBuf[file] = '\0';
	//Joins the user input and the file read..
	txtInsert = txtInsert + fBuf;

	//Points to index where to insert, in my case its index [2]..
	cfile_object.Seek( insIndex, CFile::begin );

	//writes to file where index pointer is..
        cfile_object.Write(txtInsert, szSize + file);

	//close file
	cfile_object.Close();

modified on Tuesday, September 28, 2010 2:53 AM

Re: CFile Insert not Write... [RESOLVED]

Richard MacCutchan27-Sep-10 21:48

Re: CFile Insert and realtime Sorting ...

27-Sep-10 21:48

As I explained in my previous answer there is no 'insert' facility in file I/O, it has to be implemented by reading the data into memory, modifying the memory buffer(s) and rewriting all of the file from the point of insertion.
The line

fBuf[file] = '\0';

will cause random memory corruption.

I am not sure what the line

txtInsert = txtInsert + fBuf;

is supposed to do, but I doubt that it is what you expect.

Just say 'NO' to evaluated arguments for diadic functions! Ash

loid grey manuel27-Sep-10 22:32

loid grey manuel

27-Sep-10 22:32

Well i have to agree with everything that you have written, i am totally new in visual C++... unlike the .NET that i came from, coding is more easier there, but MFC just gives me what i needed, MFC gives me "CONTROL OVER MY CODE"

i am very thankful about your comments, i got a good hint how to control my Project...

thanks a lot for posting,.

the bigger problem that i face now is how to SORT the record on the CFile., i needed real time sorting for my main project.. every-time a user input is made, the record should be automatically sorted A-Z..

how to sort:

BANANA
APPLE
ORANGE
MANGO
PINEAPPLE

and i got NO idea how to do that, any help would be very much appreciated

Re: CFile Insert and realtime Sorting ...

Richard MacCutchan28-Sep-10 2:16