C / C++ / MFC Discussion Boards

Re: Parent Forms

Sarriss30-Sep-08 9:26

Sarriss

30-Sep-08 9:26

Thnx will try it

yep then needed WS_OVERLAPPEDWINDOW|WS_CHILD,

Thnx for the help

Re: Parent Forms

led mike30-Sep-08 7:57

led mike

30-Sep-08 7:57

Toyota!

led mike

Re: Parent Forms

Sarriss30-Sep-08 8:04

Sarriss

30-Sep-08 8:04

Any Ideas, the only difference between the two is the supposed child form stays on top, but it has no
restrictions like it would if it was an API/MDI script, and I would like to avoid MDI scripts if i could.

Re: Parent Forms

Mark Salsbery30-Sep-08 8:32

Mark Salsbery

30-Sep-08 8:32

What's an MDI script?

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Parent Forms

Sarriss30-Sep-08 9:24

Sarriss

30-Sep-08 9:24

MDI - Multiple Document Interface

(Parent window with lots of windows inside it)

you can program them in API with certain functions etc and a group of functions or methods is generally called a script

additionally MDI is generally used for MFC based applications and can be done straight away by the wizzard on set up.

Re: Parent Forms

Mark Salsbery30-Sep-08 9:30

Mark Salsbery

30-Sep-08 9:30

Sarriss wrote:
a group of functions or methods is generally called a script

With a compiled language like C++, I'm pretty sure most of us
call that source code, not a script.

Also, these are windows, not forms.

Just making sure we're talking about the same thing.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Parent Forms

Sarriss30-Sep-08 9:33

Sarriss

30-Sep-08 9:33

yeah sorry Smile | :)

before this i spent about 7 years doing web programming

lots of scripts in that lol, apologies Smile | :)

and thnx for the help

Re: Parent Forms

Mark Salsbery30-Sep-08 9:58

Mark Salsbery

30-Sep-08 9:58

Sarriss wrote:
before this i spent about 7 years doing web programming

I suspected that. Smile | :)

Welcome to real programming Poke tongue | ;-P

(I'm joking....relax script kiddies)

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Parent Forms

Sarriss30-Sep-08 10:31

Sarriss

30-Sep-08 10:31

I did some real programming before the web programming Wink | ;)

had a hand in assembler and prolog lol Wink | ;)

Re: Parent Forms

Hamid_RT30-Sep-08 10:50

Hamid_RT

30-Sep-08 10:50

Maybe you are good at web programming but c++ itself is other world with lot of detaily. Wink | ;)

Re: Parent Forms

Sarriss30-Sep-08 11:04

Sarriss

30-Sep-08 11:04

I can agree to that Wink | ;)

But im getting the hang of it Wink | ;)

its taken me two days to get this far in API and OOP, and it took me 3 days to pretty much get the hang of MFC so

give it another week and i will atleast be getting somewhere Smile | :)

Tracking application memory usage

JoeSchmoe00730-Sep-08 5:25

JoeSchmoe007

30-Sep-08 5:25

How can I track application memory usage from application itself? For instance I want to know memory usage before and after the function call. I suspect there is a memory leak and want to track it down. Application is MFC-based

Re: Tracking application memory usage

Rick York30-Sep-08 6:17

Rick York

30-Sep-08 6:17

Have a look at GlobalMemoryStatus().

Re: Tracking application memory usage

JoeSchmoe00730-Sep-08 6:59

JoeSchmoe007

30-Sep-08 6:59

This is not what I am looking for. Global memory can be used by any other processes running on this PC. I cannot rely on this function to estimate memory usage for the particular application.

Re: Tracking application memory usage

David Crow30-Sep-08 10:19

David Crow

30-Sep-08 10:19

When your app is shutdown, MFC will print out objects that have not been deleted.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Tracking application memory usage

Naveen30-Sep-08 14:03

Naveen

30-Sep-08 14:03

Try the CMemoryState class. It will work only in debug build.

You can also use the GetProcessMemoryInfo() API before and after the function.

nave

[OpenedFileFinder] [My Blog]

Accepting a drag/drop from a camera drive

Felix_H30-Sep-08 5:22

Felix_H

30-Sep-08 5:22

Windows has the nasty habit of naming (over USB connected) camera drives with the name of the camera rather then giving them a drive letter. The camera drive will open readily in a file explorer window and a drag/drop to other file explorer windows works. However that is the end of it, drag and drop to any kind of program does not work out of the camera drive unless you copy to harddisk or a "normal" USB drive first.
The documented Drag...() functions in the Windows API accept a drap/drop from a harddisk directory but not from a camera drive.

My questions are:
How to access a camera drive over the windows API
How to accept dropped files from a camera drive.

for... loop to while loop

Mghand30-Sep-08 5:02

Mghand

30-Sep-08 5:02

Hey all, first year CS 1 student here and i am having some problems with my latest project
purpose of project: create 100 random numbers and display them in txtLog
i'm trying to change this for loop to a while... loop:

private: System::Void btnCreate_Click(System::Object^  sender, System::EventArgs^  e) {
int items;
double thick;
Int32::TryParse(txtItems->Text, items);
for (int i = 0; i<items;>{
thick = randomNumGen->Next(0,1000)/100.00;
strLog += "Chump  " + i + ":\t" + thick + " mm\r\n";
}
txtLog->Text = strLog;

what i've come up with is this:

private: System::Void btnCreate_Click(System::Object^  sender, System::EventArgs^  e) {
double thick;

int i = 0;
int items = 0;
while (items > 1000);
{
thick = randomNumGen->Next(0,1000)/100.00;
strLog += "Chump  " + i + ":\t" + thick + " mm\r\n";
}
txtLog->Text = strLog;

It seems to work, i get no errors, but when running and clicking btnCreate, it only lists 1 random number "Chump 0 - random number" instead of 100 random numbers in txtLog "Chump 0 - random number, chump 1, chump 2, up to 99 etc". I think that i went completely wrong when i changed it, do i need to assign i = 0 or items = 0 etc. ?

Sorry if i did this wrong! i've only been programming for a month now!

if you need more info just ask!

Re: for... loop to while loop

led mike30-Sep-08 5:10

led mike

30-Sep-08 5:10

Mghand wrote:
Hey all, first year CS 1 student here

I can't believe that a CS first year course is teaching managed C++ rather than native C++. What school are you attending?

Look at your code. You are setting items to Zero and then testing for items to be greater than 1000.

Mghand wrote:
int items = 0;
while (items > 1000);

Use the debugger to step through the code to see what is happening. That will be much faster than posting questions on the internet.

led mike

Re: for... loop to while loop

toxcct30-Sep-08 5:18

toxcct

30-Sep-08 5:18

1. wrong forum. this is native C++ forum, not Managed C++.

2. here is the "translation":

for (initialization; condition; incrementation) {
    instructions;
}
 
-----
 
initialization;
while (condition) {
    instructions;
    incrementation;
}

if you can't figure out your problem with this, and with your supposed level of studies, then you're on the wrong way, and should certainly consider change your career now

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Re: for... loop to while loop

Mghand30-Sep-08 5:43

Mghand

30-Sep-08 5:43

Thanks, that translation is exactly what i was looking for,

and although depressing, i hope i'm not that bad off lol! i have no idea the difference between native/ managed c++, this is my 5th week in college now taking Computer Science 1, only working with Visual C++ (Visual Studios '08)

Using that translation my program is working just fine with the while loop, thanks alot! and sorry for any confusion! i will look for a more appropriate forum next time for these questions

Re: for... loop to while loop

David Crow30-Sep-08 10:20

David Crow

30-Sep-08 10:20

Mghand wrote:
while (items > 1000);

Study this statement.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: for... loop to while loop

toxcct30-Sep-08 22:03

toxcct

30-Sep-08 22:03

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Subitem hiliting in CListCtrl

josip cagalj30-Sep-08 2:29

josip cagalj

30-Sep-08 2:29

Hi,
in my app I'm using CListCtrl (owner data) not enabling full row select.
How can I hilite cell (subitem) on which user clicked?
Is this requiring for owner drawn fixed, or this can be achieved without it?
If you can point the way...
Thanks!

Re: Subitem hiliting in CListCtrl

led mike30-Sep-08 4:25

led mike

30-Sep-08 4:25

josip cagalj wrote:
Is this requiring for owner drawn

I believe owner draw would be the way to do that

led mike

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