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How do I even start debugging this.

First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help manage
and track remote access sessions with out clients. I've left it running for
days at a time on my system with no problems. It has always been stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005 needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming "if
result = windows.forms.d ialogresult.yes "). The problem is that under dotnet
2.0 the program is unstable. If I leave it minimized for several hours then
try to acess it from the taskbar, the program form will just display as a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding when
you try to close it and has to be force closed. I have try...catch clauses
around everything and as far as I can tell, no exceptions are occuring. The
problem only occurs if the program has been idle for a long time. It's as if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is that I
don't have even the vaguest idea how to start debugging something like this.
How do you troubleshoot a program that just hangs without causing an error?

Can somebody recommend an article or website (or even a book) that gives a
general debugging process for something like this?
Nov 20 '06 #1
10 1970
Doug,

My guess is that you are trying to update the user interface from a
background thread. If you post some code we might be able to help you more.

http://msdn.microsoft.com/msdnmag/is...asicInstincts/

Ken
--------------------------------

"Doug Robertson" wrote:
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help manage
and track remote access sessions with out clients. I've left it running for
days at a time on my system with no problems. It has always been stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005 needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming "if
result = windows.forms.d ialogresult.yes "). The problem is that under dotnet
2.0 the program is unstable. If I leave it minimized for several hours then
try to acess it from the taskbar, the program form will just display as a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding when
you try to close it and has to be force closed. I have try...catch clauses
around everything and as far as I can tell, no exceptions are occuring. The
problem only occurs if the program has been idle for a long time. It's as if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is that I
don't have even the vaguest idea how to start debugging something like this.
How do you troubleshoot a program that just hangs without causing an error?

Can somebody recommend an article or website (or even a book) that gives a
general debugging process for something like this?
Nov 20 '06 #2
Ken,

As I mentioned, I'm a hardware guy. I don't even know what "update the user
interface from a background thread" means.

I'm not deliberately creating seperate threads. Basically there is a startup
module that sets some global parameters and structures then displays frmMain.
Any threads that are created are dotnet's doing.

What part of the code would you find useful? I'm clueless here :)

As far as I know, my code should be doing absolutely nothing when the
program is minimized. There IS a timer that does an API call every few
seconds to check for dropped RAS connections, but it always worked under
vb2003 and I've gone so far as to remove the timer control and associated
timer1_tick procedure from the vb2005 version with no effect.

Here's an overview. The main form has two main sections. A tree view on the
left side and a panel area on the right side. Different panels are displayed
depending on where you are in the tree.

The tree contains a list of our clients and under each client a list of
their systems. Each client has a RAS (VPN) phonebook entry associated with
them.

Basically you select a system from the tree view and click a "connect"
button. The program makes the VPN connection then starts an RDP session to
the selected system. When the RDP session terminates, it disconnects the VPN
and adds and entry to a logbook file.

Most of the code involves adding and deleting clients and systems to/from
the tree and setting various connection options. The core of the program is
just a wrapper around API calls that do the real work.
"Ken Tucker [MVP]" wrote:
Doug,

My guess is that you are trying to update the user interface from a
background thread. If you post some code we might be able to help you more.

http://msdn.microsoft.com/msdnmag/is...asicInstincts/

Ken
--------------------------------

"Doug Robertson" wrote:
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help manage
and track remote access sessions with out clients. I've left it running for
days at a time on my system with no problems. It has always been stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005 needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming "if
result = windows.forms.d ialogresult.yes "). The problem is that under dotnet
2.0 the program is unstable. If I leave it minimized for several hours then
try to acess it from the taskbar, the program form will just display as a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding when
you try to close it and has to be force closed. I have try...catch clauses
around everything and as far as I can tell, no exceptions are occuring. The
problem only occurs if the program has been idle for a long time. It's as if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is that I
don't have even the vaguest idea how to start debugging something like this.
How do you troubleshoot a program that just hangs without causing an error?

Can somebody recommend an article or website (or even a book) that gives a
general debugging process for something like this?
Nov 20 '06 #3
Why would you upgrade if you didn't need to?
The program was stable on 03 right?

"Doug Robertson" <Do***********@ discussions.mic rosoft.comwrote in message
news:BF******** *************** ***********@mic rosoft.com...
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help
manage
and track remote access sessions with out clients. I've left it running
for
days at a time on my system with no problems. It has always been stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005
needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming "if
result = windows.forms.d ialogresult.yes "). The problem is that under
dotnet
2.0 the program is unstable. If I leave it minimized for several hours
then
try to acess it from the taskbar, the program form will just display as a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding when
you try to close it and has to be force closed. I have try...catch clauses
around everything and as far as I can tell, no exceptions are occuring.
The
problem only occurs if the program has been idle for a long time. It's as
if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is that
I
don't have even the vaguest idea how to start debugging something like
this.
How do you troubleshoot a program that just hangs without causing an
error?

Can somebody recommend an article or website (or even a book) that gives a
general debugging process for something like this?

Nov 20 '06 #4
Obviously no one can tell me exactly what's happening, my problem is that I
don't have even the vaguest idea how to start debugging something like this.
How do you troubleshoot a program that just hangs without causing an error?
You might create a simple log system. Whenever you're about to perform
an action you could write to a file (or database or something else)
that says what the action is and what the current time is. You could
even start out vague, like writing a line whenever you enter a method
or property, and then after finding which sub has the problem, use this
same method for each line in the sub. The bad part is that this will
tell you where you had a problem (or at least what the last command to
execute was) but it won't tell you what the problem was.
As I mentioned, I'm a hardware guy. I don't even know what "update the user
interface from a background thread" means.
Basically, the User Interface (UI) thread creates all the controls on
your form. It is the only thread that is allowed to change any of the
properties of the controls it created. If any other thread tries to
change those properties the program will throw a cross-thread
exception. The article Ken mentioned describes the "proper" way to get
around this. If you need to know more please let us know and we'll try
to explain.

Thanks,

Seth Rowe
Doug Robertson wrote:
Ken,

As I mentioned, I'm a hardware guy. I don't even know what "update the user
interface from a background thread" means.

I'm not deliberately creating seperate threads. Basically there is a startup
module that sets some global parameters and structures then displays frmMain.
Any threads that are created are dotnet's doing.

What part of the code would you find useful? I'm clueless here :)

As far as I know, my code should be doing absolutely nothing when the
program is minimized. There IS a timer that does an API call every few
seconds to check for dropped RAS connections, but it always worked under
vb2003 and I've gone so far as to remove the timer control and associated
timer1_tick procedure from the vb2005 version with no effect.

Here's an overview. The main form has two main sections. A tree view on the
left side and a panel area on the right side. Different panels are displayed
depending on where you are in the tree.

The tree contains a list of our clients and under each client a list of
their systems. Each client has a RAS (VPN) phonebook entry associated with
them.

Basically you select a system from the tree view and click a "connect"
button. The program makes the VPN connection then starts an RDP session to
the selected system. When the RDP session terminates, it disconnects the VPN
and adds and entry to a logbook file.

Most of the code involves adding and deleting clients and systems to/from
the tree and setting various connection options. The core of the program is
just a wrapper around API calls that do the real work.
"Ken Tucker [MVP]" wrote:
Doug,

My guess is that you are trying to update the user interface from a
background thread. If you post some code we might be able to help you more.

http://msdn.microsoft.com/msdnmag/is...asicInstincts/

Ken
--------------------------------

"Doug Robertson" wrote:
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.
>
I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help manage
and track remote access sessions with out clients. I've left it running for
days at a time on my system with no problems. It has always been stable.
>
I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005 needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming "if
result = windows.forms.d ialogresult.yes "). The problem is that under dotnet
2.0 the program is unstable. If I leave it minimized for several hours then
try to acess it from the taskbar, the program form will just display as a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding when
you try to close it and has to be force closed. I have try...catch clauses
around everything and as far as I can tell, no exceptions are occuring. The
problem only occurs if the program has been idle for a long time. It's as if
Windows has simply decided to quit drawing the form.
>
Obviously no one can tell me exactly what's happening, my problem is that I
don't have even the vaguest idea how to start debugging something like this.
How do you troubleshoot a program that just hangs without causing an error?
>
Can somebody recommend an article or website (or even a book) that gives a
general debugging process for something like this?
Nov 20 '06 #5
I like the log file idea. At least it might point me to the right procedure.

Thanks.

"rowe_newsgroup s" wrote:
Obviously no one can tell me exactly what's happening, my problem is that I
don't have even the vaguest idea how to start debugging something like this.
How do you troubleshoot a program that just hangs without causing an error?

You might create a simple log system. Whenever you're about to perform
an action you could write to a file (or database or something else)
that says what the action is and what the current time is. You could
even start out vague, like writing a line whenever you enter a method
or property, and then after finding which sub has the problem, use this
same method for each line in the sub. The bad part is that this will
tell you where you had a problem (or at least what the last command to
execute was) but it won't tell you what the problem was.
As I mentioned, I'm a hardware guy. I don't even know what "update the user
interface from a background thread" means.

Basically, the User Interface (UI) thread creates all the controls on
your form. It is the only thread that is allowed to change any of the
properties of the controls it created. If any other thread tries to
change those properties the program will throw a cross-thread
exception. The article Ken mentioned describes the "proper" way to get
around this. If you need to know more please let us know and we'll try
to explain.

Thanks,

Seth Rowe
Doug Robertson wrote:
Ken,

As I mentioned, I'm a hardware guy. I don't even know what "update the user
interface from a background thread" means.

I'm not deliberately creating seperate threads. Basically there is a startup
module that sets some global parameters and structures then displays frmMain.
Any threads that are created are dotnet's doing.

What part of the code would you find useful? I'm clueless here :)

As far as I know, my code should be doing absolutely nothing when the
program is minimized. There IS a timer that does an API call every few
seconds to check for dropped RAS connections, but it always worked under
vb2003 and I've gone so far as to remove the timer control and associated
timer1_tick procedure from the vb2005 version with no effect.

Here's an overview. The main form has two main sections. A tree view on the
left side and a panel area on the right side. Different panels are displayed
depending on where you are in the tree.

The tree contains a list of our clients and under each client a list of
their systems. Each client has a RAS (VPN) phonebook entry associated with
them.

Basically you select a system from the tree view and click a "connect"
button. The program makes the VPN connection then starts an RDP session to
the selected system. When the RDP session terminates, it disconnects the VPN
and adds and entry to a logbook file.

Most of the code involves adding and deleting clients and systems to/from
the tree and setting various connection options. The core of the program is
just a wrapper around API calls that do the real work.
"Ken Tucker [MVP]" wrote:
Doug,
>
My guess is that you are trying to update the user interface from a
background thread. If you post some code we might be able to help you more.
>
http://msdn.microsoft.com/msdnmag/is...asicInstincts/
>
Ken
--------------------------------
>
"Doug Robertson" wrote:
>
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help manage
and track remote access sessions with out clients. I've left it running for
days at a time on my system with no problems. It has always been stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005 needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming "if
result = windows.forms.d ialogresult.yes "). The problem is that under dotnet
2.0 the program is unstable. If I leave it minimized for several hours then
try to acess it from the taskbar, the program form will just display as a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding when
you try to close it and has to be force closed. I have try...catch clauses
around everything and as far as I can tell, no exceptions are occuring. The
problem only occurs if the program has been idle for a long time. It's as if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is that I
don't have even the vaguest idea how to start debugging something like this.
How do you troubleshoot a program that just hangs without causing an error?

Can somebody recommend an article or website (or even a book) that gives a
general debugging process for something like this?

Nov 20 '06 #6
Good question.
Partly just to gain experience with vb2005. But I also want to add some
capability that I can only do (easily) with the 2.0 framework. One of the
proposed enhancement would require me to know the sessionid the program is
running under but process.session id is not available in the 1.1 framework. I
also want to make some changes to the call logging system which will be most
easily accomplished by using an unbound datagridview control. A control
that's not available in vb2003.

"Jeff Allan" wrote:
Why would you upgrade if you didn't need to?
The program was stable on 03 right?

"Doug Robertson" <Do***********@ discussions.mic rosoft.comwrote in message
news:BF******** *************** ***********@mic rosoft.com...
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help
manage
and track remote access sessions with out clients. I've left it running
for
days at a time on my system with no problems. It has always been stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005
needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming "if
result = windows.forms.d ialogresult.yes "). The problem is that under
dotnet
2.0 the program is unstable. If I leave it minimized for several hours
then
try to acess it from the taskbar, the program form will just display as a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding when
you try to close it and has to be force closed. I have try...catch clauses
around everything and as far as I can tell, no exceptions are occuring.
The
problem only occurs if the program has been idle for a long time. It's as
if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is that
I
don't have even the vaguest idea how to start debugging something like
this.
How do you troubleshoot a program that just hangs without causing an
error?

Can somebody recommend an article or website (or even a book) that gives a
general debugging process for something like this?


Nov 20 '06 #7
Hmmmm, I thought this was a winform app. In that case, there's a process ID
that you can get using the process class (available also in the 1.1 version
of the framework and vs2003). I'm only assuming that's what you want though.
Check it out.

Steve

"Doug Robertson" <Do***********@ discussions.mic rosoft.comwrote in message
news:18******** *************** ***********@mic rosoft.com...
Good question.
Partly just to gain experience with vb2005. But I also want to add some
capability that I can only do (easily) with the 2.0 framework. One of the
proposed enhancement would require me to know the sessionid the program is
running under but process.session id is not available in the 1.1 framework.
I
also want to make some changes to the call logging system which will be
most
easily accomplished by using an unbound datagridview control. A control
that's not available in vb2003.

"Jeff Allan" wrote:
>Why would you upgrade if you didn't need to?
The program was stable on 03 right?

"Doug Robertson" <Do***********@ discussions.mic rosoft.comwrote in
message
news:BF******* *************** ************@mi crosoft.com...
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help
manage
and track remote access sessions with out clients. I've left it running
for
days at a time on my system with no problems. It has always been
stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005
needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming
"if
result = windows.forms.d ialogresult.yes "). The problem is that under
dotnet
2.0 the program is unstable. If I leave it minimized for several hours
then
try to acess it from the taskbar, the program form will just display as
a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding
when
you try to close it and has to be force closed. I have try...catch
clauses
around everything and as far as I can tell, no exceptions are occuring.
The
problem only occurs if the program has been idle for a long time. It's
as
if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is
that
I
don't have even the vaguest idea how to start debugging something like
this.
How do you troubleshoot a program that just hangs without causing an
error?

Can somebody recommend an article or website (or even a book) that
gives a
general debugging process for something like this?



Nov 20 '06 #8
Processid yes. I need the sessionid. Sessionid lets me know which session in
a multi-user envionment (Such as terminal server or fast user switching in
XP) the program is running in. I haven't figured out any way to retrieve that
under 1.1

"Steve Long" wrote:
Hmmmm, I thought this was a winform app. In that case, there's a process ID
that you can get using the process class (available also in the 1.1 version
of the framework and vs2003). I'm only assuming that's what you want though.
Check it out.

Steve

"Doug Robertson" <Do***********@ discussions.mic rosoft.comwrote in message
news:18******** *************** ***********@mic rosoft.com...
Good question.
Partly just to gain experience with vb2005. But I also want to add some
capability that I can only do (easily) with the 2.0 framework. One of the
proposed enhancement would require me to know the sessionid the program is
running under but process.session id is not available in the 1.1 framework.
I
also want to make some changes to the call logging system which will be
most
easily accomplished by using an unbound datagridview control. A control
that's not available in vb2003.

"Jeff Allan" wrote:
Why would you upgrade if you didn't need to?
The program was stable on 03 right?

"Doug Robertson" <Do***********@ discussions.mic rosoft.comwrote in
message
news:BF******** *************** ***********@mic rosoft.com...
First off, I'm a hardware/OS guy. I just write code on the side and I'm
completely self taught - so bear in mind my total lack of expertise.

I have a program originally written in VB2003 using the dotnet 1.1
framework. The program makes extensive use of Win32 API calls to help
manage
and track remote access sessions with out clients. I've left it running
for
days at a time on my system with no problems. It has always been
stable.

I recently upgraded the program to VB2005 using the upgrade wizard. It
seemed to port cleanly with only minor cleanup needed (such as 2005
needing
more explicit references. i.e. "if result = dialogresult.ye s" becoming
"if
result = windows.forms.d ialogresult.yes "). The problem is that under
dotnet
2.0 the program is unstable. If I leave it minimized for several hours
then
try to acess it from the taskbar, the program form will just display as
a
blank white form. No actual error occurs, the form is just white. Task
manager shows the process running normally. It goes to not-responding
when
you try to close it and has to be force closed. I have try...catch
clauses
around everything and as far as I can tell, no exceptions are occuring.
The
problem only occurs if the program has been idle for a long time. It's
as
if
Windows has simply decided to quit drawing the form.

Obviously no one can tell me exactly what's happening, my problem is
that
I
don't have even the vaguest idea how to start debugging something like
this.
How do you troubleshoot a program that just hangs without causing an
error?

Can somebody recommend an article or website (or even a book) that
gives a
general debugging process for something like this?


Nov 20 '06 #9
The tree contains a list of our clients and under each client a list of
their systems. Each client has a RAS (VPN) phonebook entry associated with
them.

Basically you select a system from the tree view and click a "connect"
button. The program makes the VPN connection then starts an RDP session to
the selected system. When the RDP session terminates, it disconnects the
VPN
and adds and entry to a logbook file.

Most of the code involves adding and deleting clients and systems to/from
the tree and setting various connection options. The core of the program
is
just a wrapper around API calls that do the real work.
Could it be a network timeout issue? I have seen big delays when domain
servers get bogged down.

Are you checking the API hResults properly? There are many differences
between them. Some <0, sometimes negative numbers are bad, sometimes <32
is bad, etc.

Is the problem intermittant? or does it lock up every time?

Get ProcessExplorer from SysInternals.Co m. Be sure you are not leaking
connections,
threads, handles, or anything else. Also, get TCP view from there, and
check your
process.

Maybe it is a client problem on one of the workstations.

Can you test this locally? IE two machines in arms reach, where this can be
replicated?
With no other connections.
And you are sure the ONLY difference is VS2005?
Nov 21 '06 #10

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by: Bob Rock | last post by:
Hello, I'm using an executable (for which I do not have the source code nor the pdb file) as the startup application to load a DLL I'm writing and need to debug. If I try to debug the DLL I immediately get the error "Unable to start debugging. Unable to start program XXX.exe". If I do "Start without debugging" my startup application gets correctly executed. Is this problem due to the fact I'm missing the debugging information for the...
1
1894
markmcgookin
by: markmcgookin | last post by:
Hi Folks, this is a problem I had a few days ago, and I was able to solve it, but I thought I'd post the solution I found here incase anyone has a similar problem! I found this stuff on an MSNDN forum.
3
2360
by: =?Utf-8?B?SmVmZnJleQ==?= | last post by:
Just started to test a VB.net 2002 project for ASP.net application. After successfully installed the VS.net 2002 and tested the IIS 5.1 on XP Pro SP2 for some classical ASP programs, I am starting to build ASP.net programs now. For a new ASP.net project, an error message (i.e Unable to start debugging on the web server) popped out. I disabled the ASP.net debugging for 3-4 projects. However, I either could not see the ASP.net...
0
8759
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, weíll explore What is ONU, What Is Router, ONU & Routerís main usage, and What is the difference between ONU and Router. Letís take a closer look ! Part I. Meaning of...
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8670
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9252
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
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9017
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8966
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
5922
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
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3125
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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2455
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2070
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

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