C / C++ / MFC

14-Mar-04 17:49

i m trying to debug a dll and when i try to attach it to a running process, i don't see any process in the process dialog box WHY?
steps:
1: create new dll project
2: do anything.....
3: from the debug menu select start debug option
4: then select attach to process
5: now the process dialog box appears

now i have to select a process from the list but on my system i don't see any process in this process dialog.

Dev

Dev

Monty²14-Mar-04 18:00

Monty²

14-Mar-04 18:00

deyadav wrote:
i don't see any process in this process dialog

i have no idea why is that happening but as far as i can remember if you are trying to debug a dll then the process attached should load ur dll explicitly or implicitly only then the DllMain gets called, so make a super simple app which calls LoadLibrary("urdll"); and then in dll project put the exe path

Hope it helps Smile | :)

C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg

deyadav14-Mar-04 18:09

14-Mar-04 18:09

i made a sample application and before i try to debug the dll i run the sample application so that i can select it from the process dialog, but there i don't see anything.....

Confused | :confused:

Monty²14-Mar-04 18:37

Monty²

14-Mar-04 18:37

after making the dll press f5 to debug it a messagbox will come asking for the location of the exe to load enter the path of the executable in that

hope that helps Smile | :)

C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg

deyadav14-Mar-04 19:06

14-Mar-04 19:06

thankx for ur reply but my problem is I DON'T SEE the processes in the process dialog....

Build|Start debug|Attach to process...

now in the process dialog all the running processes r there.... but on my system it's blank(not a single process is there)..... YYYYYYY is my question.... do i have to make any settings for this??????

Sleepy | :zzz:

Antti Keskinen14-Mar-04 21:40

Antti Keskinen

14-Mar-04 21:40

This command allows you to attach the debugger into an existing process. It does not allow you to attach your DLL into an existing process.

What you need to do is create a simple application that loads your DLL. Then set a breakpoint into the DLL's DllMain function. Now, run the sample application in debug mode, and after the LoadLibrary call, the DllMain's breakpoint gets fired.

At least on my computer I was able to attach the debugger into a remote process, break it, run through a set of assembly code lines, and then terminate it.

Might it be that you don't have any processes running, or that your user has no rights to see them ? Check CTRL+ALT+DEL and Task Manager. Can you see the processes there ?

-Antti Keskinen

----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.

deyadav14-Mar-04 22:04

14-Mar-04 22:04

no i have the admistrative rights and when i do CTRL+ALT+DEL i can see all the running processes in the Task Manager.

Help!! The format of number in VC++

Michael Dunn15-Mar-04 4:11

Michael Dunn

15-Mar-04 4:11

If all you want is to debug a DLL, then you're going about it the wrong way. Attaching to a process is used when you want to debug that process. To debug your DLL, you need a program that loads and uses the DLL. When you hit F5 the first time, VC asks you what EXE to run, that's where you tell it the name of the program that will use the DLL.
For example, if your DLL were an IE plugin, you would use IE as the program.

--Mike--
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Flydian14-Mar-04 15:59

Flydian

14-Mar-04 15:59

Hi~Can anyone help me? How to input a number and output with the commas for every 3 digits before the decimal point? Is there any function in VC++ library can be used?

Re: Help!! The format of number in VC++

Prakash Nadar14-Mar-04 17:10

Prakash Nadar

14-Mar-04 17:10

There is no standard way of doing what you are asking for, but there are no of controls that do simiar thing.
Check out these controls here in Codeproject.

MSN Messenger.
prakashnadar@msn.com

Re: Help!! The format of number in VC++

Ravi Bhavnani14-Mar-04 18:08

Ravi Bhavnani

14-Mar-04 18:08

If you're writing a Windows app, you can do this:

CString strFloat;
float fNumber = 123456.10;
strFloat.Format (_T("%f"), fNumber);
TCHAR szFormatted [255];
::GetNumberFormat (LOCALE_USER_DEFAULT, 0, strFloat, 0, szFormatted, 255);

szFormatted should now contain "123,456.10".

/ravi

My new year's resolution: 2048 x 1536
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toolbar separators not displayed in XP style

Mark Walsen14-Mar-04 15:21

Mark Walsen

14-Mar-04 15:21

I use VC6 to create toolbar resources. When the toolbars are displayed with the flat XP style, the separators are displayed merely as a couple of extra pixels of separation between the adjacent buttons. I'd like the separators to be displayed as thin lines, as I see in other apps such as Word. How can I make that happen?

I'm using an XP style manifest XML file to instruct the app to use the XP style. That makes the buttons flat, which is what I want. But the logical grouping of buttons is not clear to the user when the only indication is an extra pixel or two of separation instead of a thin line.

Thanking in advance for help.

Cheers
-- Mark Walsen

markwa@notation.com
Notation Software, Inc.
www.notation.com

Re: toolbar separators not displayed in XP style

Mark Walsen15-Mar-04 7:46

Mark Walsen

15-Mar-04 7:46

I figured out what the problem was. I needed to call CreateEx instead of
Create for the toolbar window (a CToolBar in MFC), and include a
TBSTYLE_FLAT style flat.

Cheers
-- Mark

drawing lines that can be moved - please help

aartee14-Mar-04 13:38

aartee

14-Mar-04 13:38

Hi all.

I really need how to do this fast:

How do we draw lines that we can pick and move?
I need to store their start and their endpoint.

Can somebody help me please?

aartee.

Christian Graus14-Mar-04 15:54

Christian Graus

14-Mar-04 15:54

Point start, end;

You need to store two points, keep track of when the mouse is near them to 'pick them up', and move them when they are being held by the mouse. It's a fairly basic problem, just think about it in terms of what messages you can catch from your MFC app, and how they relate to what you want to do. Your OnPaint will always draw a line between the points, then you just need to catch mouse clicks when the pointer is near a point, move the point in OnMouseMove, and let go when the mouse button is lifted.

Christian

I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

aartee15-Mar-04 3:24

aartee

15-Mar-04 3:24

Hi Christian

But how can a simple point catch an event?
Is it really so simple?
Do I not need to implement it as some type of control or whatever?

Thanks,
aartee.

Christian Graus15-Mar-04 8:13

Christian Graus

15-Mar-04 8:13

No, it's easy as pie. When you click the mouse, your app gets a message which includes the position of the mouse. Same when you move the mouse or lift the button. You just need to call a method to turn the position relative to the top left corner of the screen to a position relative to the top left corner of your window.

Christian

I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

aartee16-Mar-04 6:17

aartee

16-Mar-04 6:17

One more question:

how do we store the lines so that when we change the positions of the line we can update our positions stored for that line accordingly.

I mean, if we store the lines in a list, how do we know at node in the list the line is so that the information at that node can be updated?

-Aartee.