Re: EnumProcesses question - C / C++ / MFC Discussion Boards

Anonymous12-Oct-05 12:02

12-Oct-05 12:02

Your problem:

// This allocates ONLY 1 byte, why you try to allocate only 1 byte??
data = (char*)malloc(sizeof(char));

// However this is memsetting 4 bytes which is whats causing the problem...
memset( data, 0, sizeof(data) );

// Code should read, only set up 1 byte
memset( data, 0, sizeof(char));

Re: malloc and free problem.

Jader8912-Oct-05 12:08

Jader89

12-Oct-05 12:08

wow, dumb error, thanks alot.

Re: malloc and free problem.

LighthouseJ12-Oct-05 12:10

LighthouseJ

12-Oct-05 12:10

Have you considered using new/delete instead?

Re: malloc and free problem.

sunit512-Oct-05 20:43

sunit5

12-Oct-05 20:43

memset( data, 0, sizeof(*data) );

Visual C++ .Net Dialog Help Wizard

Cubzfan12-Oct-05 11:14

Cubzfan

12-Oct-05 11:14

Hi,

I work on a large App created using C++ in VS6. We have since moved to .Net and our code is unmanaged. Several of our dialogs have an overwhelming number of controls. I have been tasked to create a wizard which will walk the user step-by-step through completion of the dialog. The current dialog must stay in tact while the wizard will break the dialog into smaller "user friendly" chunks with explanation text. The idea is to have only the current dialog for experienced users and the wizard for new users. The user will have to add text to edit boxes and select from combo boxes etc. I have to do this for several dialogs. I'm trying to figure out the best way to do this without duplicating work. I'm toying with the idea of using a property sheet.

Suggestions??

Thanx

Cubzfan

EnumProcesses question

Gary Wheeler12-Oct-05 10:43

Gary Wheeler

12-Oct-05 10:43

The EnumProcesses function in the PSAPI library enumerates processes. Unfortunately, it does not include in that enumeration processes run by other users. Does anyone know of a way to enumerate all the processes in the system?

Software Zen: delete this;

Re: EnumProcesses question

Prakash Nadar12-Oct-05 22:45

Prakash Nadar

12-Oct-05 22:45

probably you can do it only if you have admin rights.

-prakash

Re: EnumProcesses question

Gary Wheeler13-Oct-05 2:18

Gary Wheeler

13-Oct-05 2:18

Thanks for your response.

In this case, administrator rights doesn't appear to help (the logged-in user is an administrator).

I've found an alternate method of resolving my issue (it involves an installer for a service that runs under a separate account) using the service control manager directly.

Software Zen: delete this;

Re: EnumProcesses question

ThatsAlok13-Oct-05 1:38

ThatsAlok

13-Oct-05 1:38

Gary Wheeler wrote:
Does anyone know of a way to enumerate all the processes in the system?

Hi Mr. Gary,
you can try CreateToolhelp32Snapshot(..),Process32First and Process32Next api

"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

Re: EnumProcesses question

Gary Wheeler13-Oct-05 2:20

Gary Wheeler

13-Oct-05 2:20

Thanks for your response. I'll keep it in mind.

I've found an alternate method of resolving my issue (it involves an installer for a service that runs under a separate account) using the service control manager directly.

Software Zen: delete this;

Creating executable files?

Tara1412-Oct-05 10:34

Tara14

12-Oct-05 10:34

Hi,

I am a bigner in VC++ programming (started lerning only in March 2005 with visual stdio 6).

I request some help.
I have created a small database related application for a friend using CDAORecordSet. I made the data connection to Access (ie data is stored, added to and retrived from an access file and displaed on to a listView). I build the application seting the build configuration as 'release'. Then I copied the exe file and the access file on to my friend's computer and tried to run it.

I get the message "Unable to initialise DAO/jet engine".

Please tell me what to do now? Do I have to incorporate the jet engine in the program. If so, how do I do it? Or is there something else that must be done, like create a setup file.
Please, someone, tell me what to do? I really need some help.

Thank you,
Tara

Re: Creating executable files?

dave_dv12-Oct-05 11:06

dave_dv

12-Oct-05 11:06

You have to check register "HKEY_LOCAL_MACHINE\Software\Microsoft\Jet\3.5\Engines exists"

If you don't have this fold you have to install Jet Engine. It's depend on OS you can get download in this site http://www.microsoft.com/downloads/results.aspx?productID=&freetext=Jet%204.0%20Service%20Pack&displaylang=en[^]

One more thing is before check DAO/Jet infromation

bool DAOInstallCheck()
{
HKEY hRet;

bool bBool=false;

if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
"Software\\Microsoft\\Jet\\3.5\\Engines",
0,KEY_QUERY_VALUE, &hRet) == ERROR_SUCCESS)
{
bBool = true;
RegCloseKey(hRet);
}

return bBool;
}

if DAOInstallCheck())
// Message Return Install require
else
// DAO already Install

Have a nice day

-- modified at 17:22 Wednesday 12th October, 2005

Bitmap over video problem (VMR9)

Storm-blade12-Oct-05 10:16

Storm-blade

12-Oct-05 10:16

Hi,
I'm trying to show a bitmap image (blended) over a background video using VMR9, this works fine... Big Grin | :-D

Except,
The bitmap is only visable in the areas of the client window which the video is covering. (as the video is letterboxed). D'Oh! | :doh:

Is it possible to allow the overlay bitmap to fill the entire window...
And if not, what over approach should I be looking for to acheive this?

Thanks...
Simon.

Re: Bitmap over video problem (VMR9)

Storm-blade12-Oct-05 11:05

Storm-blade

12-Oct-05 11:05

ooook... figured it out Smile | :)

I've turned off letterbox mode, and manually resized the video itself into the client area, this allows the VMR to render the bitmap to the entire client area.... Laugh | :laugh:

Thanks for listening Big Grin | :-D

Re: Bitmap over video problem (VMR9)

Trollslayer12-Oct-05 21:58

Trollslayer

12-Oct-05 21:58

Thanks for letting us know the solution - I sometimes look here to see common problems (and solutions) that people come across.

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Add color on the Dimmed text of disabled controls?

y22zhou12-Oct-05 9:08

y22zhou

12-Oct-05 9:08

Hi,

My clients like to see the texts instead of the dimmed texts on disabled controls such as check box, radio button, combo box, and edit box in a C++/MFC dialog box. The texts on enabled controls are black.

In order to differentiate disabled controls from enabled controls (black texts), I would like to add some color (blue) on the disabled control texts.

Can you tell me the existing or potential solutions?

Thank you very much! Smile | :)

Shelley

-- modified at 16:20 Wednesday 12th October, 2005

Re: Add color on the Dimmed text of disabled controls?

David Crow12-Oct-05 9:59

David Crow

12-Oct-05 9:59

y22zhou wrote:
My clients like to see the texts instead of the dimmed texts on disabled controls such as check box, radio button, combo box, and edit box in a C++/MFC dialog box.

This would seem to be counterintuitive. For example, say you set the text of these disabled controls to red, and the user went in and changed their theme to display red text for controls. How would they differentiate between a disabled control and an enabled control?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

add message to jpeg file

kevincwong12-Oct-05 8:52

kevincwong

12-Oct-05 8:52

Hi,

I have a jpeg file. I would like to embed some text to it.
The text messages will be right above the jpeg image.

For example:

Smiley face
Big Grin | :-D

Can someone g:|ive me some ideas about how to do it?

Thanks,

Kevin

Re: add message to jpeg file

C^hris L^osinger12-Oct-05 9:53

C^hris L^osinger

12-Oct-05 9:53

read the jpeg.

allocate a temp image large enough to hold the jpeg, with extra space at the top for the text.

overlay/merge the jpeg onto the temp image.

draw the text at the top of the temp image.

save the temp image.

Cleek | Image Toolkits | Thumbnail maker

Setup a Default Button

Ian Bowler12-Oct-05 8:14

Ian Bowler

12-Oct-05 8:14

Hello,

I need to set a button as a default button (get's pressed when ENTER is pressed). I'm not using CDialog, so SetDefID is out.

I can subclass the controls in the view and have them post a message to the parent when ENTER is pressed, but there must be a better (more simple) solution.

Any ideas?

Thanks!

-Ian

Re: Setup a Default Button

David Crow12-Oct-05 9:55

David Crow

12-Oct-05 9:55

Ian Bowler wrote:
I'm not using CDialog, so SetDefID is out.

What's wrong with sending the control a DM_SETDEFID message?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Setup a Default Button

Ian Bowler12-Oct-05 11:07

Ian Bowler

12-Oct-05 11:07

Isn't that messaged handled by CDialog? If so, I don't think that will work because I'm not using CDialog.

Re: Setup a Default Button

David Crow13-Oct-05 2:55

David Crow

13-Oct-05 2:55

Ian Bowler wrote:
If so, I don't think that will work because I'm not using CDialog.

MFC is not an issue here. It is a standard Windows message that you can send to a control.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Setup a Default Button

vikas amin12-Oct-05 22:33

vikas amin

12-Oct-05 22:33

u can set up a default button
right click the button in
the resource editor , click on property,
go to the style tab , check mark the
Set default check box,
I think that willl solve ur problem

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: Setup a Default Button

ThatsAlok13-Oct-05 1:59

ThatsAlok

13-Oct-05 1:59

Ian Bowler wrote:
I need to set a button as a default button (get's pressed when ENTER is pressed). I'm not using CDialog, so SetDefID is out.

are you dynamically creating the Button then use BS_DEFPUSHBUTTON while creating the button otherwise use technique mention by Vikas

"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

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