Re: only 1 control catches tooltip? - C / C++ / MFC Discussion Boards

Member 3600828-Jul-04 2:27

8-Jul-04 2:27

in regard to Matt Weagl's artical "Using Header Control" http://www.codeproject.com/listctrl/headerctrl.asp#Anchor-Handlin-41471
how can i implement the same thing (messages) in CViewList?

thanx

only 1 control catches tooltip?

V.8-Jul-04 2:16

8-Jul-04 2:16

This is the situation:
ON_NOTIFY_EX(TTN_NEEDTEXT, 0, OnToolTipNotify )
EnableToolTips(TRUE); is the first statement in OnInitDialog

<br />
BOOL DlgFlexListFormatColumns::OnToolTipNotify(UINT id, NMHDR *pNMHDR, LRESULT *pResult){<br />
	//pTTT->szText ==> maximum 80 characters<br />
	CString tooltiptext2display;<br />
	tooltiptext2display = "";<br />
	TOOLTIPTEXT *pTTT = (TOOLTIPTEXT *)pNMHDR;    <br />
	UINT nID = pNMHDR->idFrom;<br />
    if (pTTT->uFlags & TTF_IDISHWND)   {<br />
        // idFrom is actually the HWND of the tool<br />
        nID = ::GetDlgCtrlID((HWND)nID);<br />
		switch(nID){<br />
			case IDC_STATIC_LINESPERROW: tooltiptext2display.Format(IDS_LINESPERROW);<br />
			break;<br />
			case IDC_EDIT_NROFLINES:	 tooltiptext2display.Format(IDS_LINESPERROW);<br />
			break;<br />
			default:<br />
			break;<br />
		}									//end switch<br />
		strcpy(pTTT->szText, tooltiptext2display);<br />
		return(TRUE);<br />
	}										//end if<br />
	else{ return FALSE; }					//end else<br />
}											//end method OnToolTipNotify<br />

and in the header:

afx_msg BOOL OnToolTipNotify(UINT id, NMHDR *pNMHDR,LRESULT *pResult);<br />

QUESTION:
There is only 1 control in my dialog which catches (and thus shows) a tooltip. All the rest does nothing.
What did I do wrong?

tnx for your help...

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: only 1 control catches tooltip?

David Crow8-Jul-04 2:57

David Crow

8-Jul-04 2:57

V. wrote:
ON_NOTIFY_EX(TTN_NEEDTEXT, 0, OnToolTipNotify )

Change this to:

ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTW, 0, 0xFFFF, OnToolTipNotify)
ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTA, 0, 0xFFFF, OnToolTipNotify)

V. wrote:
There is only 1 control in my dialog which catches (and thus shows) a tooltip.

Does that imply that OnToolTipNotify() is called only for that one control? Are the other controls obscured by anything, including a group box?

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

Re: only 1 control catches tooltip?

V.8-Jul-04 3:00

8-Jul-04 3:00

Well now you mention it: yes, they are all surrounded by a groupbox.
(that one control isn't surrounded)

I didn't know that that would be problem?
Why's that?

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: only 1 control catches tooltip?

David Crow8-Jul-04 3:06

David Crow

8-Jul-04 3:06

The group box control needs to be behind the other controls. Even though it appears as a skinny line surrounding the controls, it is actually obscuring them as far as tooltips are concerned. In the resource editor, change the tab order of the controls such that all the controls within the group come first.

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

Re: only 1 control catches tooltip?

V.8-Jul-04 3:27

8-Jul-04 3:27

Hi,

tnx for your reply, but I'm afraid the changes didn't make any difference... Sigh | :sigh:

Oh well if it doesn't work, the boss must be happy without.;P

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: only 1 control catches tooltip?

David Crow8-Jul-04 4:04

David Crow

8-Jul-04 4:04

V. wrote:
Oh well if it doesn't work, the boss must be happy without

If you can trim the code down to something very small and still be able to reproduce it, feel free to send the project to me and I can take a look.

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

Re: only 1 control catches tooltip?

V.8-Jul-04 3:56

8-Jul-04 3:56

I see your point. If I make the Group box invisible, the tooltips appear.
However the three groupboxes in my dialog have the three last numbers of tabstop and the tooltips do not appear. (enabling or disabling the tabstop propetie does not help)
(why don't things ever go the easy way Smile | :)

)

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: only 1 control catches tooltip?

David Crow8-Jul-04 4:00

David Crow

8-Jul-04 4:00

V. wrote:
If I make the Group box invisible, the tooltips appear.

There's no need to make it "invisible." Just ensure that it is behind all the other controls.

V. wrote:
However the three groupboxes in my dialog have the three last numbers of tabstop...

I don't quite understand this.

V. wrote:
(enabling or disabling the tabstop propetie does not help)

Again, not necessary.

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

Class hierarchy question...

vmaltsev8-Jul-04 1:57

vmaltsev

8-Jul-04 1:57

Hail everyone,

Let's say I have two classes, A and B, as well as two interface (abstract) classes for them, iA and iB. Class B derived from class A and interface iB, interface iB derived from iA, so we have,
class iA {
vitrual method AA
}
class A: public iA {
method AA
}
class iB: public iA {
vitrual method BB
}
class B: public A, public iB {
method BB
}

By doing this I want to be able to access methods of class B (and A in it) through interface iB, but, I can't do so. Compiler justly says "pure vitual function AA was not defined in B"

So, couls you please explain to me how this hierarchy should look like?

Thanks in advance, any suggestion would be helpful.

Re: Class hierarchy question...

Hans Ruck8-Jul-04 5:05

Hans Ruck

8-Jul-04 5:05

Because class B inherits from both class A and class iB, it has to deal with two different vtables. Therefore you need to provide method AA of class iA in both vtables and that is the source of the error message: the implementation for class iB is missing.

Just write a wrapper method AA in the class B, calling A::AA; this will redirect iB::AA to A::AA.

"though nothing
will keep us together
we can beat them
for ever and ever"

rechi

How to trap Ctrl + F keys in listctrl

Azghar Hussain8-Jul-04 1:23

Azghar Hussain

8-Jul-04 1:23

We are trying to capture ctrl + char keys from keyboard for the list control. We are not able to get good help. We even tried with lvn_keydown but not working. Is there a way to find the solution.

Thanks & Regards,
RK (HYD)

azghar
Live and Let live

Re: How to trap Ctrl + F keys in listctrl

Steve Thresher8-Jul-04 4:12

Steve Thresher

8-Jul-04 4:12

Processing the LVN_KEYDOWN notification will work, I've tested it. You just need to check if ((LPNMLVKEYDOWN)lParam)->wVKey=='F' and then check the state of the control key, it is pressed when the test (GetKeyState(VK_CONTROL) >> (sizeof(SHORT)-1)) returns non-zero.

Systems AXIS Ltd - Software for Business ...

Re: How to trap Ctrl + F keys in listctrl

*Dreamz8-Jul-04 4:16

*Dreamz

8-Jul-04 4:16

Override PreTranslateMessage

if(pMsg->hwnd == m_List.GetSafeHwnd())<br />
{<br />
	SHORT nCtrlState = GetKeyState(VK_CONTROL);<br />
	if(nCtrlState && pMsg->message == WM_CHAR)<br />
	{<br />
		//TO DO:<br />
	}<br />
}

NIC number

Monty²8-Jul-04 0:57

Monty²

8-Jul-04 0:57

how can i know the NIC number of network card using winsock or any other method

C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg

http://www.mastishk.com

Re: NIC number

RobJones8-Jul-04 2:41

RobJones

8-Jul-04 2:41

When you say NIC number are you looking for the MAC address? If so you may want to check out this.[^]

Whoever said nothing's impossible never tried slamming a revolving door!

Button control

macmac388-Jul-04 0:54

macmac38

8-Jul-04 0:54

Hi all,

i like to deactivate my Dialog Button IDC_STOP_ROBOT.
Seems like no big deal, but when useing the syntax below nothing happens?

GetDlgItem(IDC_STOP_ROBOT)->EnableWindow(FALSE);

.. or enable again:

GetDlgItem(IDC_STOP_ROBOT)->EnableWindow(TRUE);

happy coding,
-mark

Re: Button control

V.8-Jul-04 1:02

8-Jul-04 1:02

CWnd* pWnd;<br />
pWnd = (CWnd*)GetDlgItem(IDC_STOP_ROBOT);<br />
pWnd->EnableWindow(FALSE);

AND

CWnd* pWnd;<br />
pWnd = (CWnd*)GetDlgItem(IDC_STOP_ROBOT);<br />
pWnd->EnableWindow(FALSETRUE); // sorry

if it doesn't work try rebuilding all.
(now I noticed it's actually the same... WTF | :WTF:

)

Hope it helps.

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: Button control

David Crow8-Jul-04 4:11

David Crow

8-Jul-04 4:11

macmac38 wrote:
...nothing happens?

At what point(s) are you calling EnableWindow()?

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

FlexGrid trouble

Pazzuzu8-Jul-04 0:38

Pazzuzu

8-Jul-04 0:38

Hi All,

Using VSFlexGrid.
I want a combobox in 1 cell to be only readonly.

In the Beforeedit event,I set the cancel to "true".

In the OnClick event,I have this.

std::string test("|Hello|Text|test1");
m_flexGrid.SetComboList(test.c_str());

But I couldn't see the combobox dropdown list.

Would be nice if u could help me...
Thanks...

CHtmlView

status8-Jul-04 0:35

status

8-Jul-04 0:35

I'm using CHtmlView in my application to display html's store on the local machine. But when i navigate to some locla page sometimes the images there are not displayed. The image path is correct. It's something like "c:\images\image.jpg". Where is the problem. In caching, in backward slashes?

Re: CHtmlView

Newromancer8-Jul-04 0:58

Newromancer

8-Jul-04 0:58

Hmm... interesting.
I once wrote a program that stored the HTML sources inside the rc-file, worked fine for HTML, didn't worked at all for jpg's. So I put the jpg's in a relative adress to the program -> wokred fine.

In other words, the problem you are describing here worked fine back then when I tryed it (VS6 a few years ago), so I guess the problem lies in the HTML-Source.
Can you please post the HTML-Source around the problem? (right click, view source when the program is running.)

Re: CHtmlView

status8-Jul-04 1:54

status

8-Jul-04 1:54

Thanks for the quick answer.
I can't put the HTML in res-file because it's dynamicly created and also i can't use relative paths but abosolute bacause the paths are also dynamic. The HTML for the images is:

It works but when i right click and refresh the page sometimes some of the images doesn't appear. This is inexplicable for me.

Assignment Operator with const Member Variables

Steve Thresher7-Jul-04 23:48

Steve Thresher

7-Jul-04 23:48

How should the assignment operator be written for the following class?

<br />
class CTest<br />
{<br />
private:<br />
	const int m_test;<br />
<br />
public:<br />
	// Constructor<br />
	CTest(int i) : m_test(i)<br />
	{<br />
	}<br />
<br />
	// Copy Constructor<br />
	CTest(const CTest& rhs) : m_test(rhs.m_test)<br />
	{<br />
	}<br />
<br />
	// Destructor<br />
	~CTest()<br />
	{<br />
	}<br />
<br />
	// Assignment operator - Whats the syntax for copying the member?<br />
	CTest& operator=(const CTest& rhs)<br />
	{<br />
	}<br />
};<br />

Systems AXIS Ltd - Software for Business ...

Re: Assignment Operator with const Member Variables

Mike Dimmick8-Jul-04 0:47

Mike Dimmick

8-Jul-04 0:47

CTest& operator=(const CTest& rhs)
{
   m_test = rhs.m_test;
   return *this;
}

Yes, you can see the private members of another instance of your class. Returning a reference to the current object allows assignments to be chained.

Interestingly, even though you haven't written an operator=(int), because you have an implicit constructor that takes an int, you can write:

CTest tst( 4 );
tst = 9;

which constructs a temporary CTest and calls operator=. If you don't want this, mark your constructor explicit.

Stability. What an interesting concept. -- Chris Maunder

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