Re: why i could only read one charactor? - C / C++ / MFC Discussion Boards

Re: Working with DWORD varuable

Jijo.Raj1-Jun-08 18:30

Jijo.Raj

1-Jun-08 18:30

CodingLover wrote:
After checking a condition, I want to set all bits to 1. If I do this,

DWORD value = 1;

Since DWORD is unsigned long, assigning -1 will do the trick.

DWORD value = -1;

Regards,
Jijo.

_____________________________________________________

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Re: Working with DWORD varuable

CodingLover1-Jun-08 18:34

CodingLover

1-Jun-08 18:34

Actually I put DWORD = 1 by my mistake.

Can you see my edited post.

I appreciate your help all the time...
CodingLover Smile | :)

Re: Working with DWORD varuable

Jijo.Raj1-Jun-08 19:53

Jijo.Raj

1-Jun-08 19:53

There is nothing wrong, but instead of hardcoding, you can use constants such as MAXDWORD which is defined in winnt.h or ULONG_MAX which is defined in limits.h. That will be more safe.

Regards,
Jijo.

_____________________________________________________

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Re: Working with DWORD varuable

CodingLover1-Jun-08 20:06

CodingLover

1-Jun-08 20:06

Thanks a lot. Now I got the point. Smile | :)

I appreciate your help all the time...
CodingLover Smile | :)

why i could only read one charactor? [modified]

steven_wong1-Jun-08 17:09

steven_wong

1-Jun-08 17:09

hello, everyone:
i am now in trouble with the code below:
char temp[256];
LONG cbData=80;
RegOpenKeyEx(...&hKey);
RegQueryValue(hKey,NULL,(LPTSTR)temp,&cbData);
strcat(temp,"\\abc");
with the last line above , i could only retrieve the first charactor in temp,and the result is just *\abc. I am confused....is there anyone could help me?Thanks in advance~

modified on Monday, June 2, 2008 12:32 AM

Re: why i could only read one charactor?

Jijo.Raj1-Jun-08 18:01

Jijo.Raj

1-Jun-08 18:01

steven_wong wrote:
strcat(tem,"\\abc");

tem or temp? Just a typo while framing the question or some other temporary variable?

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Re: why i could only read one charactor?

steven_wong1-Jun-08 18:32

steven_wong

1-Jun-08 18:32

temp,i am sorry Poke tongue | ;-P

Re: why i could only read one charactor?

Rajesh R Subramanian1-Jun-08 19:58

Rajesh R Subramanian

1-Jun-08 19:58

MSDN says: RegQueryValue is provided only for compatibility with 16-bit versions of Windows. Applications should use the RegQueryValueEx function.

Besides that, what do you mean by:

LONG cbData = 80? How do you know that this would be enough? RegQueryValueEx returns ERROR_SUCCESS if successful. Did you check the return value of the function?

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: why i could only read one charactor?

steven_wong1-Jun-08 20:45

steven_wong

1-Jun-08 20:45

thank u for ur replying, Rajesh Wink | ;)

i c that,however, now i need to read the default value of a registry key, which means i could only use RegQueryValue.
and i have checked if RegQueryValue returns ERROR_SUCCESS in my own codes.the codes i paste here is just for simple.anyway, thank u for ur reminding

List box arrow

rp_suman1-Jun-08 16:34

rp_suman

1-Jun-08 16:34

There is a list box in dialog resource.

While running, it is having two arrows on right side vertically.

I want to make it only one arrow towards down and when clicking it I want to show all the items in the list.

How to do it?

Thanks & Regards,
Suman

--
"Programming is an art that fights back!"

Re: List box arrow

Jijo.Raj1-Jun-08 17:56

Jijo.Raj

1-Jun-08 17:56

rp_suman wrote:
I want to make it only one arrow towards down and when clicking it I want to show all the items in the list.

I think you need a Combobox instead of listbox.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Re: List box arrow

rp_suman1-Jun-08 18:57

rp_suman

1-Jun-08 18:57

Hi,

Thanks for the help!!

Now I have to use keyboard's down/up arrows to select different items.
But I want to see all the items when I click the combobox arrow.

Thanks,
Suman

--
"Programming is an art that fights back!"

Re: List box arrow

Jijo.Raj1-Jun-08 19:41

Jijo.Raj

1-Jun-08 19:41

I hope you just picked the combo and placed it to dialog. If you did so, by default the dropdown list size will be small to occupy only one item. So do the following

1) After placing the combo to the dialog in resource editor, click on the drop down arrow and dropdown size change rect will appear.
2) Drag the dropdown size selection so that you can see bigger list.

If you want to do it via code, send CB_SETMINVISIBLE to the combobox by specifying the minimum number of items visible in the combo.

Regards,
Jijo.

_____________________________________________________

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Re: List box arrow

rp_suman1-Jun-08 19:56

rp_suman

1-Jun-08 19:56

Hi Jijo,

Thanks for the help!!

Design time sizing of control is working well.

To do it in code, sending message only is enough or do we need to something else like creating manifest file..

Thanks,
Suman

--
"Programming is an art that fights back!"

Re: List box arrow

Jijo.Raj1-Jun-08 20:05

Jijo.Raj

1-Jun-08 20:05

Just send the message. That will be enough. I'm sure that the combo will hear your message. Wink | ;)

Regards,
Jijo.

_____________________________________________________

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[MFC] OnCreateClient Doesn't exist

Schehaider_Aymen1-Jun-08 10:50

Schehaider_Aymen

1-Jun-08 10:50

Hi,

I added a new form and associated to the CView Class, and i wannted to add The OnCreateClient usinf the wizard but i didn't find it.

Is that a stupid question or what? WTF | :WTF:

how can i add that Function. Thx

"The Ultimate Limit Is Only Your Imagination."

Re: [MFC] OnCreateClient Doesn't exist

rp_suman1-Jun-08 16:39

rp_suman

1-Jun-08 16:39

Hi,

Do you want override it?

Refer this page: CFrameWnd::OnCreateClient[^]

Thanks,
Suman

--
"Programming is an art that fights back!"

Re: [MFC] OnCreateClient Doesn't exist

Mark Salsbery2-Jun-08 6:23

Mark Salsbery

2-Jun-08 6:23

Blood_HaZaRd wrote:
and associated to the CView Class, and i wannted to add The OnCreateClient usinf the wizard but i didn't find it.

That's because OnCreateClient() is a CFrameWnd method, not a CView method.

Mark

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

Adding third choice to OK and CANCEL buttons in dialog window

Kwanalouie1-Jun-08 5:46

Kwanalouie

1-Jun-08 5:46

Using Visual C++ 6.0 MFC in SDI application

I created a dialog window. After the user enters data, he can select OK or CANCEL and the window automatically closes. I wanted to add a button called "TEST" to this same dialog. When the user clicks on the "TEST" button, I want to automatically close this dialog window just as it happens when he clicks OK or CANCEL. But I don't know how to set things up to do that.
Thanks!

Re: Adding third choice to OK and CANCEL buttons in dialog window

Jijo.Raj1-Jun-08 6:07

Jijo.Raj

1-Jun-08 6:07

In your test button handler call

CDialog::OnOK();

Then your dialog will be closed automatically. Smile | :)

Actually the CDialog::OnOK() calls UpdateData() to update data from controls to member variables and calls EndDialog() to close the dialog.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Re: Adding third choice to OK and CANCEL buttons in dialog window

Kwanalouie1-Jun-08 6:43

Kwanalouie

1-Jun-08 6:43

Thanks a lot. That was incredibly simple! Thanks again!

Re: Adding third choice to OK and CANCEL buttons in dialog window

Nelek1-Jun-08 7:12

Nelek

1-Jun-08 7:12

or CDialog::OnCancel if the datas don't have to be saved :P

Greetings.
--------
M.D.V. Wink | ;)

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Re: Adding third choice to OK and CANCEL buttons in dialog window

Jijo.Raj1-Jun-08 7:19

Jijo.Raj

1-Jun-08 7:19

Very true. Laugh | :laugh:

Regards,
Jijo.

_____________________________________________________

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Re: Adding third choice to OK and CANCEL buttons in dialog window

Hamid_RT3-Jun-08 1:02

Hamid_RT

3-Jun-08 1:02

Well you can insert a button to your dialog box and insert OnOK() or EndDialog() on this button.

How to get the coded format of file?

york5281-Jun-08 4:24

york528

1-Jun-08 4:24

I know there is BOM that we can get the coded format of a file.

But utf-8 has two format with BOM and without BOM.

How can I get that coded format?

And is there a easy way to get the coded format of a file?

I am in china.

the coded format has utf-8 Unicode ANSI GBK GB2312 BIG5 ...

Confused | :confused:

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