Re: Handle Space Key in Edit Box. - C / C++ / MFC Discussion Boards

Re: Is it compusory to call CPrintInfo::SetMaxPage before starting print????

«_Superman_»18-Feb-09 22:15

«_Superman_»

18-Feb-09 22:15

The documentation says something about using the m_bContinuePrinting member if the max. page is not known.

«_Superman_»
I love work. It gives me something to do between weekends.

Re: Is it compusory to call CPrintInfo::SetMaxPage before starting print????

VC++Maniac18-Feb-09 22:31

VC++Maniac

18-Feb-09 22:31

Thanks superman..
I always use documentation. but in this case I totally forgot it. Smile | :)

Handle Space Key in Edit Box. [modified]

Le@rner18-Feb-09 21:03

Le@rner

18-Feb-09 21:03

Hi all,

I have an edit box,i want to handle space key in this edit box in following manner.

i want space not allowed at strating point and ending point of editbox.

while if i press space in midle of edit box than its working.

i m try this.

but there is one problem when i press space key at end than the cursor moves to strat of edit box.

void Ctest::OnEnChangeEdit1()
{
CString str;

GetDlgItemText(IDC_EDIT1,str);

if(str.Mid(0,1)==' ')
{
SetDlgItemText(IDC_EDIT1,str.TrimLeft()); 
}
int length=str.GetLength();

length=length--;

if(str.Mid(length,1)==' ')
{
SetDlgItemText(IDC_EDIT1,str.TrimRight()); 
} 
}

please tell me how can i do this.

thanks in advance.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

modified on Thursday, February 19, 2009 4:20 AM

Re: Handle Space Key in Edit Box.

«_Superman_»18-Feb-09 21:13

«_Superman_»

18-Feb-09 21:13

Handle the EN_UPDATE notification in the parent dialog box.
The notification is sent in the form of a WM_COMMAND message.

In this handler, the edit box text can be retrieved and manipulated.

«_Superman_»
I love work. It gives me something to do between weekends.

Re: Handle Space Key in Edit Box.

_AnsHUMAN_ 18-Feb-09 21:17

_AnsHUMAN_

18-Feb-09 21:17

Another thing you can do is to let the user type the space key and then use Trim() function once you acquire the data from your edit box. I think you are more interested in getting the string without the spaces, than not to allow the user to enter spaces.

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Handle Space Key in Edit Box.

Nishad S18-Feb-09 21:23

Nishad S

18-Feb-09 21:23

If you just want the string without spaces in the staring and ending, then you can use the CString::TrimLeft and CString::TrimRight.

But if you need to prevent it from entering itself, then you need to map the EN_CHANGE and watch the input and filter it. This might be simple.

See also this[^].

- ns ami -

Re: Handle Space Key in Edit Box.

Le@rner18-Feb-09 22:14

Le@rner

18-Feb-09 22:14

ns ami wrote:
See also this[^].

there is nothing like that is i want.

please tell me use of CString::TrimLeft and CString::TrimRight.

can u please explain me with any example.

thanks.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Handle Space Key in Edit Box.

Le@rner18-Feb-09 22:20

Le@rner

18-Feb-09 22:20

i m try this.

but there is one problem when i press space key at end than the cursor moves to strat of edit box.

<br />
void Ctest::OnEnChangeEdit1()<br />
{<br />
	CString str;<br />
	<br />
	GetDlgItemText(IDC_EDIT1,str);<br />
<br />
	if(str.Mid(0,1)==' ')<br />
	{<br />
		SetDlgItemText(IDC_EDIT1,str.TrimLeft());		<br />
	}<br />
	int length=str.GetLength();<br />
<br />
	length=length--;<br />
<br />
	if(str.Mid(length,1)==' ')<br />
	{<br />
		SetDlgItemText(IDC_EDIT1,str.TrimRight());		<br />
	}	<br />
}<br />

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Handle Space Key in Edit Box.

Nishad S19-Feb-09 0:46

Nishad S

19-Feb-09 0:46

To move the cursor use
edit.SetSel( nPos, nPos )

- ns ami -

Re: Handle Space Key in Edit Box.

Nishad S18-Feb-09 22:22

Nishad S

18-Feb-09 22:22

"_$h@nky_" wrote:
please tell me use of CString::TrimLeft and CString::TrimRight.

can u please explain me with any example.

Well...

CString csStr = _T( "  Some text with spaces...       " );

csStr.TrimLeft(); // Result: "Some text with spaces...       " 
csStr.TrimRight(); // Result: "Some text with spaces..."

Have a look at MSDN also... Smile | :)

- ns ami -

Re: Handle Space Key in Edit Box.

Le@rner18-Feb-09 22:26

Le@rner

18-Feb-09 22:26

ns ami wrote:
CString csStr = _T( " Some text with spaces... " );csStr.TrimLeft(); // Result: "Some text with spaces... " csStr.TrimRight(); // Result: "Some text with spaces..."

I know this, i want to use it when i press any key on edit box.

i want to prevent press sapce key at strting and end.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Handle Space Key in Edit Box.

Iain Clarke, Warrior Programmer18-Feb-09 22:44

Iain Clarke, Warrior Programmer

18-Feb-09 22:44

The idea of using TrimLeft/Right is that you can then let the user enter spaces if she like. Later, when you get the text from the edit box for use, you can just throw the spaces away.

It's a choise. Trimming later will be less confusing for the user, and less work for you.

I know if I wanted to enter text in a box, and my keyboard suddenly looked like it stopped working, I would be concerned...

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

Re: Handle Space Key in Edit Box.

Le@rner18-Feb-09 22:48

Le@rner

18-Feb-09 22:48

m try this.

but there is one problem when i press space key at end than the cursor moves to strat of edit box.

void Ctest::OnEnChangeEdit1()
{
CString str;

GetDlgItemText(IDC_EDIT1,str);

if(str.Mid(0,1)==' ')
{
SetDlgItemText(IDC_EDIT1,str.TrimLeft());
}
int length=str.GetLength();

length=length--;

if(str.Mid(length,1)==' ')
{
SetDlgItemText(IDC_EDIT1,str.TrimRight());
}
}

please tell me now what can i do.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Handle Space Key in Edit Box.

Iain Clarke, Warrior Programmer18-Feb-09 23:00

Iain Clarke, Warrior Programmer

18-Feb-09 23:00

I saw that question. I replied telling you (politely) that you're being thick, and should do things in a different way, as you had already been shown.

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

Re: Handle Space Key in Edit Box.

Le@rner18-Feb-09 23:02

Le@rner

18-Feb-09 23:02

actully i m edit it after posting.

please help me for this.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Handle Space Key in Edit Box.

Cedric Moonen18-Feb-09 23:55

Cedric Moonen

18-Feb-09 23:55

"_$h@nky_" wrote:
please help me for this.

He already gave you a solution here[^] but it seems that you even didn't take a look at it. What's wrong with his suggestion ?

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: Handle Space Key in Edit Box.

Le@rner19-Feb-09 0:12

Le@rner

19-Feb-09 0:12

Thanks for help.

its done now.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: Handle Space Key in Edit Box.

Iain Clarke, Warrior Programmer19-Feb-09 0:30

Iain Clarke, Warrior Programmer

19-Feb-09 0:30

Thanks for that. I was trying to work out how to be helpful and polite...

Iain.

Codeproject MVP for C++, I can't believe it's for my lounge posts...

Reading register key values

pri_skit18-Feb-09 20:59

pri_skit

18-Feb-09 20:59

How to detect USB Drive & its letter by reading register key values in EVC++ 4.0? The location of register of local mount point is:
The HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices

Thanks

priyank

Re: Reading register key values

David Crow19-Feb-09 8:15

David Crow

19-Feb-09 8:15

See here.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Re: Reading register key values

Member 437896119-Feb-09 19:40

Member 4378961

19-Feb-09 19:40

that function is not supported in EVC++.

Re: Reading register key values

David Crow20-Feb-09 2:18

David Crow

20-Feb-09 2:18

Are these not the right ones?

CreateFile()
DeviceIoControl()

Need To Create a crawler/spider in vc++

Ash_VCPP18-Feb-09 20:39

Ash_VCPP

18-Feb-09 20:39

Hi All,

I have an urgent requirement to create a crawler by which i can be able to fetch data from a url, the ide should be vc++.

Thanks A Ton
Ash_VCPP

Re: Need To Create a crawler/spider in vc++

Chandrasekharan P18-Feb-09 21:06

Chandrasekharan P

18-Feb-09 21:06

very good.. now what is the problem??

Re: Need To Create a crawler/spider in vc++

CPallini18-Feb-09 21:19

CPallini

18-Feb-09 21:19

Wow, starting the working day with a smile is very good, my five.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

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