C / C++ / MFC

reading variable value in watch debug window

30-Aug-01 2:25

CHtmlView is a MFC wrapper over WebBrowser control. You can call CHtmlView::SetMenuBar or CHtmlView::SetToolBar, but these calls will be ignored.

Tomasz Sowinski -- http://www.shooltz.com

Bartek29-Aug-01 23:27

Bartek

29-Aug-01 23:27

Hi,

I am having trouble viewing my variables in watch window from debug mode.

when i insert a break point and try to view _b_str
varaible it is being displayed only partialy followed by some integer:

for example string like this:
SELECT * FROM my_table where when_closed = -1 AND job_id = 1386

will appear like:
SELECT * FROM my_table where when_closed (1)

How can I view the whole string?

thank you

Tomasz Sowinski30-Aug-01 2:03

30-Aug-01 2:03

_bstr_t uses reference counting, that's why (1) is displayed. I have no idea why string is partially displayed - are you absolutely sure that your string contains "job_id = 1386"? On my workstation there's no such effect; I can see complete string.

Tomasz Sowinski -- http://www.shooltz.com

Bartek30-Aug-01 2:23

Bartek

30-Aug-01 2:23

Thank you for replaying.

I am sure that string contains job_id = 1386 and much more. In many places where i try to see value of variables of type _bstr_t whenever it is getting long I can only see part of it in watch window.

someone suggested to check option in tools/options/debug unicode string and now i am getting a little more but still some part is missing.

example (the one i described earlier but with unicode string check out)

_bstr_t str : result in watch window (incomplete string)

{"SELECT * from Main_view where (job_id = 1636 OR project_id = 1636)AND ( ( person_1 = 'Baniewicz Małgorzata' ) OR (person_1 = " (1)}

_bstr_t str1 : result in watch window (complete string)

{"AND ( ( person_1 = 'Baniewicz Małgorzata' ) OR (person_1 = 'Bauer Piotr' ) OR (person_1 = 'Bejm Maciej' ))"}

str should have all str1 in itself (program is working correctly, but watch still does not display some part - in str's (1) place should be: 'Bauer Piotr' ) OR (person_1 = 'Bejm Maciej' ))"} - the end of str1, but it does not appear.

do not know why ?

Tomasz Sowinski30-Aug-01 2:34

30-Aug-01 2:34

This doesn't happen on my VC6 SP5. Watch, QuickWatch and Locals always display full string. Maybe you have a null character somewhere inside _bstr_t?

Tomasz Sowinski -- http://www.shooltz.com

What is "shell" (in Windows)?

Bartek30-Aug-01 2:43

Bartek

30-Aug-01 2:43

I am also using VC++ 6.0 SP5.

I do not think that NULL characters might be a reason - I do not have such in my string and the place where string is suddenly dropped happens at random depending only on the lenght of bstr_t

Maer72729-Aug-01 23:26

29-Aug-01 23:26

What is "shell" (in Windows)?

Thanks.

Maer

Tomasz Sowinski30-Aug-01 1:44

30-Aug-01 1:44

From Platform SDK docs:

The Microsoft® Windows® user interface (UI) gives users access to a wide variety of objects necessary for running applications and managing the operating system. The most numerous and familiar of these objects are the folders and files that reside on computer disk drives. There are also a number of virtual objects that allow the user to do tasks, such as send files to remote printers or access the Recycle Bin.

The shell organizes these objects into a hierarchical structure called the namespace, which provides users and applications with a consistent and efficient way to access and manage objects. Users interact with the namespace through the shell's graphical UI or through an application. Applications interact with the namespace through the shell's application programming interface

You'll find complete info in your VC++ help: go to Contents, then Platform SDK/User Interface Services/Windows Shell.

Tomasz Sowinski -- http://www.shooltz.com

Maer72730-Aug-01 3:26

30-Aug-01 3:26

Thanks my pal.

I have read the articles you introduced to me. It helps a lot. I have known the function of the "shell".

But I still have a question. I can not find the exact definition of "shell". I am now in a puzzled state. Like the air we breathe, we just know the function and do not know the exact definition of the term.

Can you explain the definition of the "shell"?

Thank again.

Best regards.

Maer

Tomasz Sowinski30-Aug-01 3:37

30-Aug-01 3:37

Can you explain the definition of the "shell"?

In short, this is a program you're using to communicate with operating system. In the case of 32-bit Windows, this program is named explorer.exe.

Tomasz Sowinski -- http://www.shooltz.com

Maer72730-Aug-01 16:22

Re: Chenge Edit Box color

30-Aug-01 16:22

Thanks pal.

You help a lot

Maer

30-Aug-01 1:31

Use WM_CTLCOLOR:

HBRUSH CMyView::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
HBRUSH hbr = CFormView::OnCtlColor(pDC, pWnd, nCtlColor);

if(nCtlColor == CTLCOLOR_EDIT)
pDC->SetTextColor(RGB(0,0,255));

return hbr;
}

Classview not showing..

29-Aug-01 22:41

If I open a workspace in a MIcrosoft Visual studio it's not showing the class
view??What can be the problem..
How I can see the class view in MSDEV..

Eek! | :eek:

Re: Classview not showing..

Ghasrfakhri29-Aug-01 22:51

Ghasrfakhri

29-Aug-01 22:51

Hi Srinu .
Get 'ALT+0' Keys.

Iman Ghasr-e-fakhri

Re: Classview not showing..

Ghasrfakhri29-Aug-01 22:51

Ghasrfakhri

29-Aug-01 22:51

Hi Srinu .
Get 'ALT+0' Keys. Rose | [Rose]

Iman Ghasr-e-fakhri

URGENT ::: How to find out the current process name

kumar_p329-Aug-01 22:41

Re: URGENT ::: How to find out the current process name

29-Aug-01 22:41

Hi,
I am writing a independant logger class for which I need to write a log
with the application name.
Like if the applicaions name is "UserApp.exe" i need to write a log
file with the name "UserApp.log". The problem I have is i do not have access to the
command line.

Finding out a dll's file name is easy, we can use 'GetModuleFileName' but
it does not work with exes.

How can i find out the current applciations name from within the application ??

Thanks for any help

kumar_p329-Aug-01 22:44

about "container" on the LAN

29-Aug-01 22:44

Sorry abt that I bungled up a little bit,
The 'GetModuleFileName' works.

Sorry

Maer72729-Aug-01 21:57

A simple question about "Network Neighborhood"

29-Aug-01 21:57

Are there any other typies of "container" besides "Work Group" on the LAN?

Thanks.

Maer

Maer72729-Aug-01 21:41

URGENT !!!Creating a CONSOLE AND WRITING TO IT

29-Aug-01 21:41

I have read the information about SHGetDesktopFolder, IShellFolder::ParseDisplayName, SHGetDataFromIDList in MSDN.

Can you show me a sample code using the functions you mentioned before to get the first level of "NETRESOURCE" of the "Network Neighborhood"?

Thanks.

Maer

kumar_p329-Aug-01 21:40

Re: URGENT !!!Creating a CONSOLE AND WRITING TO IT

29-Aug-01 21:40

Hi,

I want to create a console from a Windows Application and print some messages.
I am using the following code.

BOOL bret = AllocConsole() ;
if( !bret)
{
//Do some err processing
}
else
{
HANDLE hScrBuf = CreateConsoleScreenBuffer( GENERIC_READ | GENERIC_WRITE, FILE_SHARE_WRITE|FILE_SHARE_READ, NULL, CONSOLE_TEXTMODE_BUFFER, NULL) ;
if( hScrBuf == INVALID_HANDLE_VALUE ) //Error Check
{
//Do some Err Processing
}
DWORD dwWritten ;
BOOL bret = WriteConsole(hScrBuf, szLogText,_tcslen(szLogText),&dwWritten, NULL) ;
return bret ;
}

The code creates the window correctly and also when I step thru the code all
the statements seem to be working corretly!
WriteConsole also returns a value of the num of bytes written correctly, but i
cannot see anything on the screen.

Please tell me what is wrong with the code, Thanks in advance.

Oliver Anhuth29-Aug-01 22:18

Oliver Anhuth

29-Aug-01 22:18

You should use

SetConsoleActiveScreenBuffer(hScrBuf);

to activate your source buffer for the console.

Or you should use

hSrcBuf = GetStdHandle(STD_OUTPUT_HANDLE);

to get a handle to the console.

Oliver

Re: URGENT !!!Creating a CONSOLE AND WRITING TO IT

kumar_p329-Aug-01 22:32