C / C++ / MFC Discussion Boards

Re: A quick question about Microsoft Visual C++ Runtimes and Visual Studio 2008.

Perspx11-Feb-09 8:39

Perspx

11-Feb-09 8:39

Sorry can you paraphrase that and be more compact about it? I got bored at Accept. Dead | X|

Regards,
--Perspx

"A refund for defective software might be nice, except it would bankrupt the entire software industry in the first year."
-Andrew Tanenbaum

"Einstein argued that there must be simplified explanations of nature, because God is not capricious or arbitrary. No such faith comforts the software engineer."
-Fred Brooks

Re: A quick question about Microsoft Visual C++ Runtimes and Visual Studio 2008.

Stuart Dootson11-Feb-09 8:56

Stuart Dootson

11-Feb-09 8:56

Yes, you're quite right - been there, done that, wondered about the crashes Wink | ;)

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

Re: A quick question about Microsoft Visual C++ Runtimes and Visual Studio 2008.

santiageitorx11-Feb-09 8:04

santiageitorx

11-Feb-09 8:04

Thank you guys I'll check it right now!

Re: A quick question about Microsoft Visual C++ Runtimes and Visual Studio 2008.

Stuart Dootson11-Feb-09 9:07

Stuart Dootson

11-Feb-09 9:07

As mike so correctly reminded me, just be aware of when you need to use the DLL run-time rather than the .lib one.

In general, the DLL CRT is required when you need one instance of the C run-time to be shared across your executable and DLLs. In my experience, that's most often when you want to allocate things in a DLL that you then deallocate in the EXE (or vice versa, but it's usually that way round). You can work around that with explicit allocation/deallocation functions, but DAMN it's easier with a DLL CRT.

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

How to manage image position after changing screen resolution?

Supra211-Feb-09 7:03

Supra2

11-Feb-09 7:03

Hi,
I have developed one application which loads some jpg images and when I resize window the position of all these images gets changed. I have loaded a small image at bottom of right corner of screen (SDI application). When I restore the screen I am not able to see the same image in window. I am using GetclientRect function to calculate the screen size but after using this I am able to manage the images properly. I want to draw these images as per the screen size(e.g solitaire game). Please suggest how to do it.

Thanks

Re: How to manage image position after changing screen resolution?

Cedric Moonen11-Feb-09 7:36

Cedric Moonen

11-Feb-09 7:36

You shouldn't draw only the image on screen. Instead what you have to do is remember the data that should be displayed, and redraw the data when needed. If you are using an SDI application, part of the job is already done for you.
Let's take the solitaire game as an example: in your document class, you would store your current situation (e.g. what are the visible cards, the current available card in to be draw, ...). You do not store anything which is related to the screen (no images, no card position, ...). This is purely data.
Then whenever this data changes (e.g. the user moves some card), then you request the view to repaint itself. Everything is delegated to the view to set the cards to the correct position and so on. When the view is resized, it will also repaint itself in the same way.

In your situation, if the images disappear it's probably because your view is repainted and you didn't put any drawing code in the paint handler. A suggest you take a look at the Scribble example[^] on MSDN (it's a MDI application, but it will already give you a lot of feedback on how you have to do it for a SDI app).

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

How not to lose focus when a child dialog is created

materatsu11-Feb-09 5:36

materatsu

11-Feb-09 5:36

Hello.

I am facing this problem, i have a parent dialog wich has a couple of buttons and edits boxes, now when i pass the mouse over a button a child modeless window should popup.

Now i have it all working, but when the child window appears the parent dialog loses focus, that is annoying, because if i am typing in the edit box and move the mouse over a button it loses focus because the child window appears.

Is there a way to solve this without losing focus in the parent window?

Re: How not to lose focus when a child dialog is created

David Crow11-Feb-09 5:37

David Crow

11-Feb-09 5:37

Do you have the child's parent and owner set correctly?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: How not to lose focus when a child dialog is created

materatsu11-Feb-09 6:10

materatsu

11-Feb-09 6:10

i only set parent in the create method:

Create(MYDIALOG::IDD, this);

is this what you mean?

Re: How not to lose focus when a child dialog is created

David Crow11-Feb-09 6:15

David Crow

11-Feb-09 6:15

See here.

Re: How not to lose focus when a child dialog is created

Code-o-mat11-Feb-09 6:10

Code-o-mat

11-Feb-09 6:10

Try creating your popup window hidden and then show it with ShowWindow(SW_SHOWNOACTIVATE).

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: How not to lose focus when a child dialog is created

Perspx11-Feb-09 6:14

Perspx

11-Feb-09 6:14

Damn, beat me to it! Dead | X|

Regards,
--Perspx

Re: How not to lose focus when a child dialog is created

Code-o-mat11-Feb-09 6:17

Code-o-mat

11-Feb-09 6:17

Yepp *blows smoke off fingers* Big Grin | :-D

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: How not to lose focus when a child dialog is created

Perspx11-Feb-09 6:11

Perspx

11-Feb-09 6:11

Using the SW_SHOWNOACTIVATE flag when creating/showing your window should show it without your parent window losing focus.

Regards,
--Perspx

Re: How not to lose focus when a child dialog is created

materatsu11-Feb-09 6:44

materatsu

11-Feb-09 6:44

i have tried

Cdialog *d = new Cdialog(this);
	d->Create(Cdialog::IDD, this);
	d->ShowWindow(SW_SHOWNOACTIVATE);

and it stills do the same, it stills lose focus.

what i have notice is that using disable property of the dialog does not lose focus in the parent window but it of course disable the child window

How to block unwanted websites using socket programming?

ArashFar11-Feb-09 4:49

ArashFar

11-Feb-09 4:49

I need to write an application that doesnt allow some specific websites to be opened. I think the solution is socket programming on the port 8080 but not sure about the details.
Am I wrong about the solution?
What is the solution for this?
Thanks a lot.

Mike

Re: How to block unwanted websites using socket programming?

David Crow11-Feb-09 5:36

David Crow

11-Feb-09 5:36

ArashFar wrote:
What is the solution for this?

I don't know, but a search such as this might give you some ideas.

Re: How to block unwanted websites using socket programming?

ArashFar11-Feb-09 6:22

ArashFar

11-Feb-09 6:22

Thanks but as you see the results are just bunch of companies with a proxy application to sell Cry | :((

Arash

Re: How to block unwanted websites using socket programming?

David Crow11-Feb-09 6:25

David Crow

11-Feb-09 6:25

I realize that, but sometimes even looking from the outside-in, you can glean helpful hints as to how an application works.

Re: How to block unwanted websites using socket programming?

led mike11-Feb-09 7:40

led mike

11-Feb-09 7:40

DavidCrow wrote:
sometimes even looking from the outside-in, you can glean helpful hints as to how an application works.

Or you could just go read something like this[^] Wink | ;)

Re: How to block unwanted websites using socket programming?

ArashFar14-Feb-09 7:40

ArashFar

14-Feb-09 7:40

Thanks!
That is a great site

Arash

Read KKEY_CURRENT_USER Registry?

Software200711-Feb-09 4:48

Software2007

11-Feb-09 4:48

How can I tell if the registry key doesn't exit?

GetProfileInt(strSection, "Variable",0);

Well, this will return 0 if Variable doesn't exist by default. How can I know if "Variable" doesn't even exist, becasue I would like to do something else based on that.

Thanks

sft

Re: Read KKEY_CURRENT_USER Registry?

David Crow11-Feb-09 5:01

David Crow

11-Feb-09 5:01

Software2007 wrote:
How can I tell if the registry key doesn't exit?

By calling RegQueryValueEx().

Software2007 wrote:
GetProfileInt(strSection, "Variable",0);

This function is intended for .ini files.

Re: Read KKEY_CURRENT_USER Registry?

Software200711-Feb-09 5:06

Software2007

11-Feb-09 5:06

Thanks. Am I understanding this correctly?
RegQueryValueEx():Retrieves the type and data for the specified value name associated with an open registry key.

This seems to retrieve the type of "Variable" in my example, I would like to know if "Variable" exists in the registry before I do anything to it.

Thanks

sft

Re: Read KKEY_CURRENT_USER Registry?

led mike11-Feb-09 5:15

led mike

11-Feb-09 5:15

Software2007 wrote:
Am I understanding this correctly?

Software2007 wrote:
This seems to retrieve the type of "Variable" in my example, I would like to know if "Variable" exists in the registry before I do anything to it.

I believe your capacity to understand is like quadrupled if you actually read the documentation

If the lpValueName registry value does not exist, the function returns ERROR_FILE_NOT_FOUND.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.