Popup menu - First menu item - SetCheck - C / C++ / MFC Discussion Boards

free2cric28-Apr-06 2:17

28-Apr-06 2:17

Yes , exactly..I want to have a bitmap created from visible +nonvisible area of scrolview. So end bitmap will show all the area plus a non filled rectangle should be also included in the bitmap which will represent the current visible area. SO I will know where exactly I am in the view compared to whole scenario. Probably you might have seen something in some games.
I want this bitmap to be generated as the view is scrolled. and updated everytime on the picture control on my dialog. all effect should be dynamic.
If there is anyother way then its highly welcom aswell.
Thanks

cric

Getting the installation directory in WinXP

Parthiban27-Apr-06 20:07

Parthiban

27-Apr-06 20:07

Hi there,

I having the problem in GetCurrentDirectory function. When i am from VC++ IDE, the GetCurrentDirectory (GCD) function returns the exact path. But i running after the installing the my application, the GCD function does n't return the path. for eq, if installed in "D:\program files\MyApp\App", it is giving the path as "D:\Documents and Settings\username". how to i get it?

Parthiban

Re: Getting the installation directory in WinXP

Naveen27-Apr-06 20:23

Naveen

27-Apr-06 20:23

use

GetModuleFileName()

nave

Re: Getting the installation directory in WinXP

Nishad S27-Apr-06 20:46

Nishad S

27-Apr-06 20:46

If u are doing like this, u have to get the path from GetModuleFileName and set working folder in program.
Is it better to specify the working folder in the link (windows shortcut) itself?

- NS -

What are the steps of firing Drag Drop event in a ListBox

crazymubashir27-Apr-06 20:03

crazymubashir

27-Apr-06 20:03

hi,

I am trying to store the value of the drop item in CString. But the problem is the drag drop event doesn't gets fired when i drag and drop an item from one listbox to another. Need help urgently.

Thanks in advance.

Re: What are the steps of firing Drag Drop event in a ListBox

Nibu babu thomas27-Apr-06 20:38

Nibu babu thomas

27-Apr-06 20:38

Here[^] is one.

Nibu thomas
Software Developer

Re: What are the steps of firing Drag Drop event in a ListBox

crazymubashir28-Apr-06 22:42

crazymubashir

28-Apr-06 22:42

Thanks for the most precise answer.

There is one last problem i.e my list box also contains integer values which doesn't gets droped on the list box. The "DataFormat" has nothing which can check that the data is integer. What should i do.

Popup menu - First menu item - SetCheck

Sarvan AL27-Apr-06 19:46

Sarvan AL

27-Apr-06 19:46

Hi all,

I have toolbar with a button as popup menu. It has two menu items, On and Off. I have main menu "Switch" with menu items On and Off.

When I click on Switch -> On, it gets checked. But the toolbar button also pushed. This is because the popup menu should have the same ID as first menu item. I want only the first menu item checked not the toolbar button to be pushed.

Pls refer the MSDN lines:
*************************************************
Nested Pop-up Menus

If you are using a nested menu structure, you will notice that the ON_UPDATE_COMMAND_UI handler for the first menu item in the pop-up menu is called in two different cases.

First, it is called for the pop-up menu itself. This is necessary because pop-up menus do not have IDs and we use the ID of the first menu item of the pop-up menu to refer to the entire pop-up menu. In this case, the m_pSubMenu member variable of the CCmdUI object will be non-NULL and will point to the pop-up menu.

Second, it is called just before the menu items in the pop-up menu are to be drawn. In this case, the ID refers just to the first menu item and the m_pSubMenu member variable of the CCmdUI object will be NULL.
*************************************************

void CMainFrame::OnUpdateSwitchOn(CCmdUI* pCmdUI) <br />
{<br />
// to avoid toolbar pop-up menu to get updated<br />
pCmdUI->SetCheck((pCmdUI->m_pSubMenu == NULL) && SwitchOn) ;<br />
}<br />
<br />
void CMainFrame::OnUpdateSwitchOff(CCmdUI* pCmdUI) <br />
{<br />
	pCmdUI->SetCheck(!SwitchOn) ;<br />
}

How can we use CCmdUI members to solve this.

Thanks in advance,
Sarvan AL

Internet bandwidth

Anilkumar K V27-Apr-06 19:11

Anilkumar K V

27-Apr-06 19:11

How to get bandwidth information of Internet through programmatically?
Using C++

pls share any c++ code

Thnaks

-- modified at 1:21 Friday 28th April, 2006

Re: Internet bandwidth

David Crow28-Apr-06 2:44

David Crow

28-Apr-06 2:44

You'll probably want the Win32_NetworkAdapter WMI class for this.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"We will be known forever by the tracks we leave." - Native American Proverb

how to add a custom item to the right-click menu of Edit control?

samfromcn27-Apr-06 18:58

samfromcn

27-Apr-06 18:58

When we right-click a edit control, it will pop up a menu. I want to add a item on that menu, but do not know how Confused | :confused:

Re: how to add a custom item to the right-click menu of Edit control?

Nibu babu thomas27-Apr-06 19:11

Nibu babu thomas

27-Apr-06 19:11

Read this[^] article by dan.g.

Nibu thomas
Software Developer

Browse for subfolder

anjita27-Apr-06 18:07

anjita

27-Apr-06 18:07

In my code i have used a browse for folder class but now i want that instead of desktop the browse for folder dialog should start with any another folder then how can i do it.

Re: Browse for subfolder

Nishad S27-Apr-06 18:48

Nishad S

27-Apr-06 18:48

You have to set the pidlRoot of BROWSEINFO structure object. SHParseDisplayName will give you the PIDL from path. See MSDN help for more details.
Good luck Smile | :)

- NS -

OPC connection

Anu_Bala27-Apr-06 17:48

Anu_Bala

27-Apr-06 17:48

Hi,
We have to do OPC connection between server and client in MFC.
I dont know OPC connection.Can u prefer any site and step by step methods follwed for the client server connection.

Re: OPC connection

QuickDeveloper27-Apr-06 18:09

QuickDeveloper

27-Apr-06 18:09

you can refer to the OPC website for it's architecture..http://www.opcfoundation.org/[^]

You can also check the following link for OPC toolkits...
http://www.opcconnect.com/source.php[^]

"Every morning I go through Forbes list of 40 richest people in the world. If my name is not in there, I go to work..!!!"

Re: OPC connection

David Crow28-Apr-06 2:48

David Crow

28-Apr-06 2:48

Does this help?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"We will be known forever by the tracks we leave." - Native American Proverb

C++ syntax question

includeh1027-Apr-06 17:45

includeh10

27-Apr-06 17:45

class NNN
{
public:
	int ia[100];
};

NNN nnn[]=
{
	{10},
	{20},
};

Above can be compiled properly.
but, if add construct to the class

class NNN
{
public:
	NNN()
	{
		memset(&ia,100,sizeof(ia));
	}
	int ia[100];
};

compile error appears as:
error C2440: 'initializing' : cannot convert from 'const int' to 'class NNN'

how to solve the problem to let the class contain constructor to initialize data?

Re: C++ syntax question

Aqueel27-Apr-06 17:51

Aqueel

27-Apr-06 17:51

I am afraid you can not do like this

NNN nnn[]={<br />
	{10},	{20},<br />
};

Why you are passing 10 and 20 when you are doing nothing with them.
secondly, you are making an array of a class. To initialize it, you can not give it an integer value.
You want to initialize ia in the constructor, then why to pass 10 and 20. memset will initialize the array. Smile | :)

Good luck.

We Believe in Excellence
www.aqueelmirza.cjb.net

-- modified at 0:00 Friday 28th April, 2006

Re: C++ syntax question

includeh1027-Apr-06 19:36

includeh10

27-Apr-06 19:36

ask for why?
u r speaking to yourself.

Re: C++ syntax question

Aqueel27-Apr-06 21:41

Aqueel

27-Apr-06 21:41

Oh! includeh10!
It is a way of telling other person and pointing out where could be the problem. I use it commonly and it works perfectly fine. Smile | :)

I apologize! If you dislike it. Sigh | :sigh:

We Believe in Excellence
www.aqueelmirza.cjb.net

Re: C++ syntax question

Nishad S27-Apr-06 19:09

Nishad S

27-Apr-06 19:09

includeh10 wrote:
how to solve the problem to let the class contain constructor to initialize data?

I didn't understand what u really needed. Anyway u can solve it by just changing the constructor like this Wink | ;)

NNN(int)
{
 memset(&ia,100,sizeof(ia));
}

- NS -

Re: C++ syntax question

includeh1027-Apr-06 19:37

includeh10

27-Apr-06 19:37

NS17 wrote:
didn't understand what u really needed

so delete your reply to make the post clear.

Re: C++ syntax question

toxcct27-Apr-06 22:28

toxcct

27-Apr-06 22:28

are you on drugs ? Unsure | :~

Re: C++ syntax question

Michael Dunn27-Apr-06 19:46

Michael Dunn

27-Apr-06 19:46

Once you add a ctor, you can't use the array initialization syntax. Do it like this:

NNN foo[] = { NNN(), NNN() };

--Mike--
Visual C++ MVP Cool | :cool:

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