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Re: Displaying Message Box while program(code) continues [modified]

KongHL30-May-06 21:57

KongHL

30-May-06 21:57

Hmm I mean doModal(), then call a function of that dialog class immediately after the dialog is being displayed.

Is it possible?

Re: Displaying Message Box while program(code) continues [modified]

_anil_30-May-06 22:16

_anil_

30-May-06 22:16

you can write your funtion in OnShowWindow ;
But still it won't fulfill your purpose as you want to call the funtion after the dialog is displayed.

In that case I have two options.
First in the OnInitDialog function you call SetTimer to set time say 1 sec.
Then call your funtion in OnTimer and kill the timer in OnTimer function.

Second method is that you create a thread to call your funtion.
and start the thread in OnShowWindow.

Regards
Anil

Re: Displaying Message Box while program(code) continues [modified]

toxcct1-Jun-06 23:06

toxcct

1-Jun-06 23:06

_anil_ wrote:
First in the OnInitDialog function you call SetTimer to set time say 1 sec.

very bad idea...!!

consider the case where you init your dialog with a database which it connection is long to establish (at least more that 1 sec)... the program will behave badly.

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: Displaying Message Box while program(code) continues [modified]

_anil_1-Jun-06 23:21

_anil_

1-Jun-06 23:21

Yes you are right Smile | :)

, Its a bad idea, depending on the situation.
But the programmer know what he wants, and aware of the conditions. if the condition is according to you then we can use thread instead.

But I think still I can make it to work.

<code>
void OnShowWindow(){
  // here I set timer
  SetTimer(....);

 // Then the database connection
 // Its long enough 1 sec 
 // problem .....

  return;
}
</code>

second case

<code>
void OnShowWindow(){
  // Then the database connection
 // Its long enough 1 sec 


  // here I set timer
  SetTimer(....);  // less chance of problem
  return;
}
</code>

It depends on when you set the timer.
But I still agree with you that its a bad idea.
But is one of the solution depending on the situation.

Regards
Anil

-- modified at 5:25 Friday 2nd June, 2006

Re: Displaying Message Box while program(code) continues [modified]

Ștefan-Mihai MOGA30-May-06 21:38

Ștefan-Mihai MOGA

30-May-06 21:38

This might help you: Delay MessageBox with auto-close option[^] Good luck and keep the good coding!

Re: Displaying Message Box while program(code) continues [modified]

Stephen Hewitt30-May-06 22:09

Stephen Hewitt

30-May-06 22:09

KongHL wrote:
Is it possible for me to display the message box and let the nxt function to process while the message box remains displayed and the user cannot close it.

This goes against the concept of a message box. One way you could get this effect is to display the message box in another thread. It might be simpler to make your own modeless dialog however.

Steve

Re: Displaying Message Box while program(code) continues [modified]

KongHL30-May-06 21:44

KongHL

30-May-06 21:44

Delay MessageBox delays a short period of time before going to the next step of code.. But I would like to display the messagebox and continue the nxt step of code as per normal..

Am I correct to say that?

Re: Displaying Message Box while program(code) continues

ThatsAlok31-May-06 0:03

ThatsAlok

31-May-06 0:03

KongHL wrote:
Delay MessageBox delays a short period of time before going to the next step of code.. But I would like to display the messagebox and continue the nxt step of code as per normal..

Create the ModelLess Dialog box!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: Displaying Message Box while program(code) continues [modified]

Ștefan-Mihai MOGA30-May-06 22:39

Ștefan-Mihai MOGA

30-May-06 22:39

KongHL wrote:
Is it possible for me to display the message box and let the nxt function to process while the message box remains displayed and the user cannot close it.

Please have a look on Mauro Leggieri's Background Task Dialog[^] Good luck and keep the good coding!

Re: Displaying Message Box while program(code) continues [modified]

toxcct31-May-06 0:06

toxcct

31-May-06 0:06

you could also call it from another thread...

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: Displaying Message Box while program(code) continues

ThatsAlok31-May-06 0:15

ThatsAlok

31-May-06 0:15

toxcct wrote:
you could also call it from another thread...

UI Thread or worker Thread Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: Displaying Message Box while program(code) continues

toxcct31-May-06 0:17

toxcct

31-May-06 0:17

i'm not good at using thread (i nenver used them yet), so i cannot say exactly where is the difference b/w them.

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: Displaying Message Box while program(code) continues

ThatsAlok31-May-06 0:42

ThatsAlok

31-May-06 0:42

toxcct wrote:

i'm not good at using thread (i nenver used them yet), so i cannot say exactly where is the difference b/w them.

Kiddin, it work well from both Option!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: Displaying Message Box while program(code) continues

toxcct31-May-06 0:58

toxcct

31-May-06 0:58

any hint btw about the diff between ui thread and worker thread ?

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: Displaying Message Box while program(code) continues

ThatsAlok31-May-06 1:54

ThatsAlok

31-May-06 1:54

toxcct wrote:
any hint btw about the diff between ui thread and worker thread ?

http://www.flounder.com/mvp_tips.htm#Using%20User-Interface%20Threads[^]
http://www.flounder.com/mvp_tips.htm#Using%20Worker%20Threads[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Bitmap Planes

Sarath C30-May-06 20:41

Sarath C

30-May-06 20:41

What is meant by bitmap planes?

Sa^Rath

"D on't blindly follow rules you read somewhere without verifying that it makes sense for your situation!"

Re: Bitmap Planes

Steve Echols30-May-06 21:57

Steve Echols

30-May-06 21:57

I thought I knew the answer, then googled it, and was suprised!

Check this out (don't know if it will help or not):

http://blogs.msdn.com/oldnewthing/archive/2004/12/01/273018.aspx[^]

Re: Bitmap Planes

NiceNaidu30-May-06 22:52

NiceNaidu

30-May-06 22:52

BitMap Plane is a Flag ,which indicates Whether the BitMap is MonoChrome(if falg is reset) or Color(if falg is set).

Appu..
"If you judge people, you have no time to love them."

.obj, .lib and .dll?

Polite Programmer30-May-06 20:40

Polite Programmer

30-May-06 20:40

Being a begginer, I have many problems...
Consider this situation

Suppose I am building a usefull library. One way is that I distribute it along with all the source and all the header files.... Right? Client programer will include the main header and will start using the functionality present in the library.

Other scenario, what if I only give him the header files along with lib files? How I can do that? Means what compiler options I will have to set? (Assuming I am using VC.NET 2003)

Lastly, I present here a realife example that somewhat confused me... Its the FreeType Library which is a true type rasterizer. http://www.freetype.org

There are two distributions, one is the source of the library, and the other is library in usable form.

I set my include paths as indicated by the documentation of FreeType. When I compile, I get "Uresovled symbols in function _tmain()". Ok, I figure out that either I have to provide the linker with the .lib file. Ok, I do so... All very well... Program complies and executes but terminates... It says "Cannot load library freetype6.dll".
At the next step I find the .dll library and place it in the current directory of the program. Now I compile, and execute... all very well... Program is running...
My question is that when I provided it with .lib file, FreeType library should be statically linked to my program why it requires the .dll to be accessible for the EXE?

Please explain me what are .obj and .lib and .dll files are and what is there relation to each other and how they fit togather?
Morevoer, if there is any article, book or tutorial on these issues, please let me know...

If anything seems to you stupid, please dont mind as I am a begginer...

Best regards,
Mohsin Hijazee

Polite Programmer

More Object Oriented then C#

Re: .obj, .lib and .dll?

Cedric Moonen30-May-06 21:03

Cedric Moonen

30-May-06 21:03

Polite Programmer wrote:
My question is that when I provided it with .lib file, FreeType library should be statically linked to my program why it requires the .dll to be accessible for the EXE?

No, this is not entirely true. The lib files doesn't not contain the code of the library but rather the 'prototypes' of the functions from the dll. So, you need to link with it in order to know wich are the functions from your dll. Then, of course you need to have your dll in your working folder in order to load the functions at run-time. You don't need the lib file only if you load explicitely the functions from the dll (using LoadLibrary and GetProcAddress).

Of course, you can also have lib files which contain code (so, that are not associated with a dll).

Cédric Moonen
Software developer

Charting control

Re: .obj, .lib and .dll?

NiceNaidu30-May-06 21:19

NiceNaidu

30-May-06 21:19

One more major difference is .lib file comes into picture at Compile time.
Where as .dll comes into picture at Run Time.

Appu..
"If you judge people, you have no time to love them."

Re: .obj, .lib and .dll?

Polite Programmer31-May-06 19:15

Polite Programmer

31-May-06 19:15

It implies that if I create a DLL, I will get a .LIB file for free? Any details or any article addressing these issues please?

Polite Programmer

More Object Oriented then C#

Optional arguments

SWDevil30-May-06 20:39

SWDevil

30-May-06 20:39

Hi,

I have a function that is declared as follows:
void func(int A, int B, int C, int D=-1, int E=-1);
arguments D and E are optional, and so if the function is called like this:
func(A,B,C); then D and E recieve the value -1.

What I want to do is add another optional argument, let's say int F that will also receive -1 as default, for example.
The problem is that sometimes I want to call the function only with the parameters A,B,C and F. If I declare the function like this:
void func(int A, int B, int C, int D=-1, int E=-1, F);
will I be able to call the function in this manner:
func(A,B,C,,,F); ?

Re: Optional arguments

Nibu babu thomas30-May-06 20:48

Nibu babu thomas

30-May-06 20:48

SWDevil wrote:
void func(int A, int B, int C, int D=-1, int E=-1, F);
will I be able to call the function in this manner:
func(A,B,C,,,F); ?

No.

Nibu thomas
A Developer

Programming tips[^] My site[^]

Re: Optional arguments

_anil_30-May-06 21:00

_anil_

30-May-06 21:00

SWDevil wrote:
void func(int A, int B, int C, int D=-1, int E=-1, F);

forget about calling the funtion, C++ won't allow to declare the funtion like this.
If you declare an argumnet with default value then all the arguments after that should have default value .

Regards
Anil

Last Visit: 31-Dec-99 18:00 Last Update: 30-Apr-24 7:45

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