Modbus in MFC - C / C++ / MFC Discussion Boards

Re: Domain or Workgroup member.

Kevin Gutteridge25-Aug-04 1:30

Kevin Gutteridge

25-Aug-04 1:30

And almost immediately after my post I find....

http://support.microsoft.com/default.aspx?scid=kb;en-us;179891

Core dump on WIN98

mfc_surfer25-Aug-04 0:52

mfc_surfer

25-Aug-04 0:52

Hi,

I have and SDI application that works properly on win2k & xp but core dumps when running on win98.
The application crashes with error message "This program has performed an illegal operation and will be shut down."

I think that it's because of over using the resourses. Could you let me know how I can limit using the resoruces?

Any idea would be appreciated.

Regards

how to split a String

dana_krycek2125-Aug-04 0:38

dana_krycek21

25-Aug-04 0:38

I have to read a file that has 2 integers in each line. I'm using Visual c++ .net and I read the file like this:

String *l = s->ReadLine();

How can I split the String to have 2 different Strings, each one with one integer?? I know there is a function for String that is called Split but I don´t know how to use it.

Thanks for your help

Re: how to split a String

David Crow25-Aug-04 2:49

David Crow

25-Aug-04 2:49

What is the value of s after the call to ReadLine()?

dana_krycek21 wrote:
I know there is a function for String that is called Split but I don´t know how to use it.

There are examples here, here, and here.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

SW_HIDE problm

zahid_ash25-Aug-04 0:11

zahid_ash

25-Aug-04 0:11

HI,

when i do on minimizing ShowWindow(SW_HIDE)

I palce the appcaition in system tray .

but the application is not shown in Task Manager-> process and application at that time.

how can i detect it there or it should be in task managers -> proces and applications

thanx

Regards.

Re: SW_HIDE problm

David Crow25-Aug-04 3:08

David Crow

25-Aug-04 3:08

zahid_ash wrote:
when i do on minimizing ShowWindow(SW_HIDE)...the application is not shown in Task Manager-> process and application at that time.

While hiding a window will remove it from the Applications tab, it will not remove it from the Processes tab.

What exactly is it that you are wanting to do?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Attching e menu to child window in MDI

ledallam24-Aug-04 23:22

ledallam

24-Aug-04 23:22

I am developing an MDI application in VC++. I need to create an MDI child menu attached to the Child Window without replacing the mainframe's menu. To be more specific my MDI Child window is using CFormView. I should be able to access both the child window menu and the main frame menu both simultaneously at a time. Can any one please suggest a solution? Please email to me if you have any useful relevant information on the above.

madhavi

Modbus in MFC

chauteen24-Aug-04 23:07

chauteen

24-Aug-04 23:07

I'm writing a dialog by MFC.
I need to send data out through RS-232, using Modbus protocol.
I know there are many classed written for serial communication, but not for Modbus.
Does anyone have already fought with modbus and survied?
Please give me sone advice.
Thanks.

chauteen

Bitmap

Johnny Peszek24-Aug-04 22:55

Johnny Peszek

24-Aug-04 22:55

Hi!

I have bitmap 256x256 pixels. The bitmap has white background and there is a black line drawn on that background. Bitmap is a matrix so is there way to extract the coordinates (x,y) of the black line?

Regards.

sites which provide some examples on MSHtml interfaces

Member 52815524-Aug-04 21:50

Member 528155

24-Aug-04 21:50

Hi all,
Iam a newbie to com. I have to work in c++ and vc.Iam working on interfaces like IhtmlcontrolRange, IHtmlTxtRange,IHTMLDataTransfer etc.
I don't how to implement some these interfaces. It would be of great help if i could get some help on how to implement these in c++.

Msdn site gives only definitions not examples.

Kindly specify some websites which could provide some examples on to implement these.
Thanx in Advance.

Raj

Opening an Outlook PST File and Reading its Contents

sirisha_kumari24-Aug-04 20:19

sirisha_kumari

24-Aug-04 20:19

Hi All,

I am developing an application where in the system has many users and each user is having his own outlook.pst file. My requirement is that when the user of application runs the application it display All users, when particular user is selected it display the corresponding outlook.pst file of that user. I would like to read that particular Outlook.pst address book data.

My present application could able to read from the default user outlook.pst file. I used MAPI32.dll in my application. Can any one please help me in opening any user's outlook pst file and reading its address book.

Thankyou,
sirisha.

new apis in windows xp sp2

SamirSood24-Aug-04 19:29

SamirSood

24-Aug-04 19:29

Has annyone used the following api

CoInternetSetFeatureEnabled which is introduced in windows xp sp2

this is in urlmon.dll

Smile | :)

Samir Sood

H and Lib File

swarup24-Aug-04 19:17

swarup

24-Aug-04 19:17

HI can some body tell me where can i find the wtsapi32 h and lib files or can send them to me. my id is swarup_sk@yahoo.com

Re: H and Lib File

David Crow25-Aug-04 3:51

David Crow

25-Aug-04 3:51

Those files are included in the platform SDK.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Problem getting openGL current screen

imranlodhi24-Aug-04 19:16

imranlodhi

24-Aug-04 19:16

I am writting an openGL wrapper which will take screen shots of different games, it works good on most of the games.

but there is a problem in MOHAA, Medal of Honour Allied Assult.

I am getting the VIEW PORT with below code, it works ok when the game is in the main screen but its not getting the entire screen when the game intro movie or the game is running. This code takes a specific rectengle in the entire screen this means that currently the game VIEW PORT is set there.

int width=800; //default image width
int height=600; //default image heigh
GLint viewport[4];

glGetIntegerv(GL_VIEWPORT, viewport);

if (viewport[2]>0 && viewport[3]>0)
{
width= viewport[2];
height= viewport[3];
}

I will really appreciate if someone can help me get the current screen when the VIEW PORT is not the entire screen

Problem getting openGL current screen

imranlodhi25-Aug-04 19:50

imranlodhi

25-Aug-04 19:50

PLLLLZZZZZZZZZZZZZZZZZ REPLY ME Cry | :((

GUIDE ME A BIT Cry | :((

Get Video Card info, like getVolumeinfo

Anonymous24-Aug-04 18:43

Anonymous

24-Aug-04 18:43

I am trying to find out how to get the video card info such as maker and screen resolution, like you would find the serial in the getvolumeinfo. can anyone point me in the right direction? using vs6

Connecting to Mysql database???

Linera24-Aug-04 18:09

Linera

24-Aug-04 18:09

I need a set of source codes for connecting to and doing stuff on mysql database through C++ or a tutorial.

Re: Connecting to Mysql database???

David Crow25-Aug-04 3:13

David Crow

25-Aug-04 3:13

Here is a good starting point.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

search function help

CShoun24-Aug-04 17:05

CShoun

24-Aug-04 17:05

I have created a Database application that uses ODBC. So far i have been able to search only if i get an exact match by using m_strFilter. I would like to be able to filter partial matches as well.

Question: How can I search my records and filter partial matches as well as exact matches?

App info: MFC SDI with database support

Code:

<br />
void CDrinkRecipesView::OnSearchbutton2() <br />
{<br />
	CString m_Input="";<br />
	GetDlgItemText(IDC_SEARCHEDIT, m_Input);<br />
		<br />
<br />
	m_pSet->m_strFilter = "RecipeName = ?";<br />
	m_pSet->m_RecipeNameParam = m_Input;<br />
	m_pSet->Requery();<br />
	<br />
	if (m_pSet->IsBOF())<br />
	{	<br />
		m_pSet->m_strFilter = "RecipeName = RecipeName";<br />
		m_pSet->Requery();<br />
		<br />
		AfxMessageBox("Record not found!");<br />
		UpdateData(FALSE);<br />
		m_ctlSearchEdit.SetFocus();<br />
		m_ctlSearchEdit.SetSel(0,-1);<br />
	}<br />
		<br />
	else<br />
	{<br />
		UpdateData(FALSE);<br />
		m_ctlSearchEdit.SetSel(0,-1);<br />
		m_ctlSearchEdit.Clear();<br />
		m_ctlSearchEdit.SetFocus();<br />
	}<br />
<br />
}<br />

thanks

Re: search function help

David Crow25-Aug-04 3:11

David Crow

25-Aug-04 3:11

Use the LIKE operator.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Add/Remove Programs

Ed K24-Aug-04 15:17

Ed K

24-Aug-04 15:17

Anyone know how to hook into the add/remove programs applet and determine if it shows an application is installed. If it is...uninstall it??

Thanks!!

ed

The absence of evidence is not evidence of absence.

Re: Add/Remove Programs

Graham Bradshaw25-Aug-04 3:09

Graham Bradshaw

25-Aug-04 3:09

Enumerate HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall, and for every sub-key where the SystemComponent value is missing or zero, those are the installed programs. The UninstallString value gives the command to run to uninstall the program.

Re: Add/Remove Programs

Ed K25-Aug-04 5:14

Ed K

25-Aug-04 5:14

That gets it! Thanks!

ed

The absence of evidence is not evidence of absence.

Re: Add/Remove Programs

David Crow25-Aug-04 3:20

David Crow

25-Aug-04 3:20

Ed K wrote:
Anyone know how to hook into the add/remove programs applet...

I don't know how to "hook" into it, but to run the applet, type:

control appwiz.cpl

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

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