C / C++ / MFC

Re: You left out the <code>throw() </code>operand

7-May-10 2:37

You can't...I would suggest you don't use a function if you don't know what its public interface is...and it's exception throwing habits are part of that public interface, so don't use this one...

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!

Software_Developer7-May-10 1:28

Software_Developer

7-May-10 1:28

You left out the throw() operand.
Throw tells the compiler that a function could throw an exception and the catch() operand and catches (handles) the exception thrown by the throw() operand.

char *buf;<br />
   try {<br />
      buf = new char[512];<br />
      if( buf == 0 )<br />
         throw "Memory allocation failure!";<br />
   }<br />
   catch( char * str ) {<br />
      cout << "Exception raised: " << str << '\n';<br />
   }

Code Review Checklist

elizas7-May-10 0:02

elizas

7-May-10 0:02

1.Are all the conditional paths reachable?
2.Are all the individual conditions in a complex conditions separately evaluated?
3.If there is a nested IF statement, are the THEN and ELSE parts appropriately delimited?
4. In the case of a multi-way branch like SWITCH/CASE statement, is a default clause provided? Are the breaks after each CASE appropriates?
5.Is there any part of code that is unreachable?
6.Are there any loops that will never execute?
7.Are there any loops where the final condition will never be met and hence cause the program to go into an infinite loop?
8.What is the level of nesting of the conditional statements? Can the code be simplified to reduce complexity?

http://www.mindfiresolutions.com/Code-Review-Checklist-238.php[^]

Cheers,
Eliza

Re: Code Review Checklist

LittleYellowBird7-May-10 0:20

LittleYellowBird

7-May-10 0:20

Quote from your profile .... Biography: I am in the marketing team at Mindfire Solution.

Is that whay you have not asked a proper question and have a link to your website ....... ? Roll eyes | :rolleyes:

Ali

rtd server

trioum7-May-10 0:01

trioum

7-May-10 0:01

I have a grid in which data in cells is updating in milisecond. Now I want to reflect these change in excel file . so I tried rtd server for this purpose . what documentation is available in c#.net , I want to implement in MFC because whole of application in MFC. how Can I achieve the task of rtd server in MFC

Trioum

General Guidelines For C++ library development

Ahmed Charfeddine6-May-10 22:12

Ahmed Charfeddine

6-May-10 22:12

Hi there,
I have a library that I want to publicy. It gives different facilities to C++ developers wanting to develop server application.

Are there general guidelines that can be useful ?

Easy Profiler : Now open source !
http://www.codeproject.com/KB/cpp/easyprofiler.aspx

Re: General Guidelines For C++ library development

Emilio Garavaglia6-May-10 23:44

Emilio Garavaglia

6-May-10 23:44

About making the library yes, but ... it is a question you'd had to investigate BEFORE deploying the library ...
The only thing they can tell you right now is that you have to rewrite it based on a different coding standard on environmental assumption !

About public it, well... You have to document its functionality and its usage, either in informal way (describe the design and the way it should be used to accomplish certain tasks - this part should be readable like a book) and in formal way (alphabetical order of classes, functions, parameters, input output, processing, side effects, little testing samples etc.

You can try to have a clue about this can be done by looking existing library's documentation, like boost[^] (the link points just to an example), or MSDN[^] (just another sample) etc.

2 bugs found.
> recompile ...
65534 bugs found.
D'Oh! | :doh:

Re: Walkthrough: Creating and Using a Static Library

Software_Developer7-May-10 0:12

Software_Developer

7-May-10 0:12

Walkthrough: Creating and Using a Static Library

http://msdn.microsoft.com/en-us/library/ms235627(VS.80).aspx

Walkthrough: Creating and Using a Dynamic Link Library

http://msdn.microsoft.com/en-us/library/ms235636(VS.80).aspx

Custom Draw -ListView win32

arun_pk6-May-10 22:09

6-May-10 22:09

How can i set the row text color of a listview using custum Draw....
ie the row text color should be different..

thanks in advance

Code-o-mat6-May-10 22:21

Code-o-mat

6-May-10 22:21

You don't know how to make your list view owner drawn OR you don't know how to set text color OR both?

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

arun_pk6-May-10 22:24

6-May-10 22:24

i dont know how to set text color using list view owner drawn

i know only

ListView_setTextColor

that sets for whole List view..
what i m trying is to set different color on different rows text

Stuart Dootson6-May-10 23:38

6-May-10 23:38

I have done exactly this...

In your (MFC) NM_CUSTOMDRAW handler, you need code like this:

void whtever the clas name is::OnCustomDraw(NMHDR *pNMHDR, LRESULT *pResult)
{
   LPNMLVCUSTOMDRAW pNMLVCD = reinterpret_cast<LPNMLVCUSTOMDRAW>(pNMHDR);
   *pResult = CDRF_DODEFAULT;
   switch(pNMLVCD->nmcd.dwDrawStage)
   {
   case CDDS_PREPAINT:
      *pResult = CDRF_NOTIFYITEMDRAW;
      break;
   case CDDS_ITEMPREPAINT:
      {
         const COLORREF mainColor = whatever the background text colour is;
         const COLORREF altColor = whatever the alternate background colour is;
         const COLORREF mainTextColor = whatever the main text colour is;
         const COLORREF altTextColor = whatever the alternate text colour is;
         const size_t row = pNMLVCD->nmcd.dwItemSpec;
         pNMLVCD->clrTextBk = (1==row%2)?altColor:mainColor;
         pNMLVCD->clrText = (1==row%2)?altTextColor:mainTextColor;
         *pResult = CDRF_NEWFONT;
      }
      break;
   };
}

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!

arun_pk7-May-10 2:30

7-May-10 2:30

Error	46	error C3861: 'HANDLE_NM_CUSTOMDRAW': identifier not found

i am getting an error like this

Stuart Dootson7-May-10 2:33

7-May-10 2:33

Show your code. I have no idea where HANDLE_NM_CUSTOMDRAW comes from...

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!

arun_pk7-May-10 2:41

7-May-10 2:41

do i need to add any header
for NM_CUSTOMDRAW

Stuart Dootson7-May-10 2:44

7-May-10 2:44

Look at the Custom Draw section in MSDN - here's a link[^]

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!

arun_pk7-May-10 2:47

7-May-10 2:47

yeah

i was lokking to Handle NM_CUSTOMDRAW directly
its coming in WM_NOTIFY
Thanks i m working on that Smile | :)

arun_pk7-May-10 3:01

7-May-10 3:01

it never reaches in the below case statement

case CDDS_ITEMPREPAINT:

Stuart Dootson7-May-10 3:05

7-May-10 3:05

Do you have any items? If not, it's not going to.

The code in the CDDS_PREPAINT case block is what causes the custom draw state machine to call your handler for CDDS_ITEMPREPAINT.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

CodeProject MVP for 2010 - who'd'a thunk it!

arun_pk7-May-10 3:11

7-May-10 3:11

i have got around 1400 items in my ListView

its reaching inside CDDS_PREPAINT case

Code-o-mat6-May-10 23:45

Code-o-mat

6-May-10 23:45

Well, add the LVS_OWNERDRAWFIXED[^] style to your list view (preferably in the resource editor if you are working with a dialog template). Then, in the parent of your list view handle the WM_DRAWITEM[^] message, this gives you a DRAWITEMSTRUCT [^] structure that contains a DC you have to use to perform the drawing, use SetTextColor[^] to set a color before you draw the texts using DrawText[^]. Hope this helps.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <