C / C++ / MFC Discussion Boards

Anonymous5-May-05 0:32

5-May-05 0:32

Sorry, I'm afraid I have not made myself quite clear about the problem.
I do not want to truncate the double and assign it back to a double.
I have a program with lots of warnings about double to int assignments, and I want to gracefully get rid of these warnings, without modifying the default program behavior. As I have explained, my efforts so far (with casting and using round(x)) have been fruitless.

Re: Weird double/int truncation error

ricecake5-May-05 3:38

ricecake

5-May-05 3:38

What about something like:

double d;<br />
int i;<br />
<br />
/* ... */<br />
<br />
i = static_cast<int>(d);

--
Marcus Kwok

RUNTIME_CLASS

muslcesonvacation4-May-05 4:03

muslcesonvacation

4-May-05 4:03

Hi,

I have a derived CFormView called CMyView. In this class there are DECLARE_DYNCREATE and IMPLEMENT_DYNCREATE Macros.

In my CMainFrame i have a Message Handler to catch a menu click.

void CMainFrame::OnFileMyview()
{
if ( m_pClass != NULL)
{
m_pClass = RUNTIME_CLASS(CMyView);
m_pMyView = (CMyView*)m_pClass->CreateObject("CMyView");
}
}

How do i get my CMyView to display in my window.

Thanks
Gary

Re: RUNTIME_CLASS

liquid_4-May-05 10:25

liquid_

4-May-05 10:25

Try this for explanation

Transparent Ellipse

Anonymous4-May-05 3:32

Anonymous

4-May-05 3:32

Hi,

I would like to draw a transparent ellipse with the border RED
For that I have set the CPen and I have done : pdc->SelectObject(pen)

But with the brush ( CBrush ) in order to put : pdc->SelectObject(brush) , I don't wanna set any color...only transparent...cause this ellipse is going to be drawn on an existing draw that I want to keep

Help please!!!

Thanks

Re: Transparent Ellipse

Larry J. Siddens4-May-05 4:45

Larry J. Siddens

4-May-05 4:45

Try:

pdc->SelectStockObject( NULL_BRUSH );

Larry J. Siddens

Visual C++ test

act_x4-May-05 2:41

act_x

4-May-05 2:41

My employer wants me to take a Brainbench Visual C++ test . The fact is that I have been coding for the most part using mFC. Just to see where I was placed , i took the test and scored a dismal 2.71 . The bar set by my employer is 4.0 . I would like to get information on preparation material for the test .

Thanks

Re: Visual C++ test

David Crow4-May-05 3:20

David Crow

4-May-05 3:20

I took that same test and scored about the same as you. I apparently don't know what I am doing, or the test is not a good indicator of what I do know. Big Grin | :-D

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Visual C++ test

act_x4-May-05 3:40

act_x

4-May-05 3:40

Generally in a work environment , one gets to work on a limited area and the focus is on using the easiest framework to get the job done asap .The test covers all the areas under Visual C++ from device Contexts , OLE ,Active X , COM and general Win 32 stuff .

Why would my boss care if I used MFC or Win32 .

Employers should realize this .

Engineering is the effort !

Re: Visual C++ test

David Crow4-May-05 3:48

David Crow

4-May-05 3:48

act_x wrote:
Generally in a work environment , one gets to work on a limited area and the focus is on using the easiest framework to get the job done asap .The test covers all the areas under Visual C++ from device Contexts , OLE ,Active X , COM and general Win 32 stuff .

I knew all of that going into it. I just took the test for fun and because it was free.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Visual C++ test

Nitron4-May-05 8:57

Nitron

4-May-05 8:57

did you get to use CP (and/or google) like you would obviouslly do in _real_ life?

~Nitron.

ññòòïðïðB A start

Stacks, HELP!!!!

Member 19336884-May-05 2:22

Member 1933688

4-May-05 2:22

I'm starting to work with stacks and binary search trees, I wanted to know with regard to stacks, where are new nodes added and existing nodes removed?

Re: Stacks, HELP!!!!

David Crow4-May-05 3:22

David Crow

4-May-05 3:22

Think of a stack as that thing you used in the high school cafeteria that held the trays. When you needed a tray, you took the one from the top. When a tray was put back on, it was added to the top. Google for FIFO.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Stacks, HELP!!!!

ricecake4-May-05 8:41

ricecake

4-May-05 8:41

Wouldn't FIFO (first in, first out) be a queue? I think you meant to say LIFO (last in, first out) since the last thing you "push" onto the stack will be the first thing that you "pop" off of the stack.

--
Marcus Kwok

Re: Stacks, HELP!!!!

David Crow4-May-05 9:45

David Crow

4-May-05 9:45

ricecake wrote:
Wouldn't FIFO (first in, first out) be a queue? I think you meant to say LIFO...

Yep, thanks. Blush | :O

I can't believe I suggested that.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Modal dialog problem

doctorpi4-May-05 1:30

doctorpi

4-May-05 1:30

Hi guys
I want to do a Modal dialog that when do the oninitdialog, start a proces drawing a progress ctrl.
But the problem is that the process starts but nothing is drawn.
Any suggestion?
Maybe a timer in oninitdialog that launches later the process and the progresCtrl?
Best Regards
Doc

Re: Modal dialog problem

David Crow4-May-05 3:26

David Crow

4-May-05 3:26

doctorpi wrote:
But the problem is that the process starts but nothing is drawn.

You'll need to create another thread to do this work in. With only one message pump, it is too busy with the processing that paint messages are not being processed and the UI is nonresponsive. Read here.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Modal dialog problem

Michael Dunn4-May-05 16:38

Michael Dunn

4-May-05 16:38

See the FAQ
4.3 I have a dialog that does some lengthy processing, and I need to have a Cancel button so the user can abort the processing. How do I get the Cancel button to work?[^]

--Mike--
Visual C++ MVP Cool | :cool:

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Best strategy for long-term timer?

srev4-May-05 1:08

srev

4-May-05 1:08

Hi Guys,

I have an app which requires multiple long-term timers (eg an event to be triggered at 12.45 on Jan 12th 2006). I've used SetTimer/KillTimer for short-term timers but this doesn't seem right for the long-term stuff. What's the best way of dealing with this without wasting CPU time on it?

Thanks for any advice,

Simon

Re: Best strategy for long-term timer?

David Crow4-May-05 3:28

David Crow

4-May-05 3:28

How about creating a scheduled task?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Best strategy for long-term timer?

Ravi Bhavnani4-May-05 7:22

Ravi Bhavnani

4-May-05 7:22

srev wrote:
best way of dealing with this without wasting CPU time on it?

Don't know if this the best way, but you could suspend your process for the duration of the resolution of interest and check if your event has occured.

/ravi

My new year's resolution: 2048 x 1536
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Resource with csv values

Anonymous4-May-05 0:37

Anonymous

4-May-05 0:37

Hi all,

I would like to insert a set of records in csv format as a VC++ 6.0 resource.

At the moment the only way I founded is to insert the values in the String Table but the values I need to insert are more than 300 so manually entering the values is a difficult and long task

I used the insert custom resource but I don't kno how to retrieve values.

Please help me. Confused | :confused:

Re: Resource with csv values

David Crow4-May-05 3:29

David Crow

4-May-05 3:29

Put the CSV "records" in a file and insert that file as a RT_RCDATA resource type.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Resource with csv values

Blake Miller4-May-05 4:20

Blake Miller

4-May-05 4:20

And to access your custom file check this out:

Adding and extracting binary resources

http://www.codeproject.com/win32/binaryresources.asp[^]

MPEG Socket programming

Sameeeer4-May-05 0:08

Sameeeer

4-May-05 0:08

Hi,
I am willing to write a socket program using UDP. I want to transfer a MPEG file over the network from the server program to the client program. The program must be written in C++ and should run on any windows & linux machine. Can you please give me a sample code whaich satisfies the above requirement.

Please help me....

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