C / C++ / MFC

1-Sep-14 10:16

Hi i am searching many information about this, but i only find complex code. I simply need a context menu with icons. Now i post my code can you help me to complete?

CMenu Menu;

Menu.CreatePopupMenu();

Menu.AppendMenuW(MF_STRING,ID_POPUP_1,(LPCTSTR)_T("Item 1"));

Menu.AppendMenuW(MF_STRING,ID_POPUP_2,(LPCTSTR)_T("Item 2"));

Menu.AppendMenuW(MF_STRING,ID_POPUP_3,(LPCTSTR)_T("Item 3"));

theApp.GetContextMenuManager()->ShowPopupMenu(Menu, point.x, point.y, this, TRUE);

I have seen on MSDN i have to use this:

// Load bitmaps from resource. Both m_CheckBitmap and m_UnCheckBitmap 
// are member variables of CMainFrame class of type CBitmap.
ASSERT(m_CheckBitmap.LoadBitmap(IDB_CHECKBITMAP));
ASSERT(m_UnCheckBitmap.LoadBitmap(IDB_UNCHECKBITMAP));

// Associate bitmaps with the "Bitmap" menu item. 
CMenu* mmenu = GetMenu();
CMenu* submenu = mmenu->GetSubMenu(4);
ASSERT(submenu->SetMenuItemBitmaps(ID_MENU_BITMAP, MF_BYCOMMAND, 
   &m_CheckBitmap, &m_UnCheckBitmap));

But i think my situation is more easy than example, but maybe i have problems to merge the two code parts,
please can you help me i don't think take you more time.
Thanks very much.

Richard MacCutchan1-Sep-14 21:17

Richard MacCutchan

1-Sep-14 21:17

According to the documentation[^], the bitmaps are just used to indicate the item is selected or not. The MSDN sample shows you how to add the two bitmaps to your menu items. When you say you just want icons, do you mean without any text? If so you need to look at http://msdn.microsoft.com/en-us/library/kb145b0a.aspx[^], for the options to set up individual menu items.

Drakesal2-Sep-14 3:01

2-Sep-14 3:01

I need a popup menu with an icon 16x16 on the left and the text on the right, for every menu item.

Richard MacCutchan2-Sep-14 4:00

Richard MacCutchan

2-Sep-14 4:00

I gave you the link to the documentation, you just need to follow the instructions.

_Flaviu2-Sep-14 4:58

_Flaviu

2-Sep-14 4:58

Have you seen this solution ?Bitmap Menu[^]

Maximilien2-Sep-14 5:31

Maximilien

2-Sep-14 5:31

(disclaimer, I've not tried it on a popup menu; only regular menu).

The simplest way is to use CMFCToolBar::AddToolBarForImageCollection.

You create a dummy toolbar with all the images you want to use and call the above static method and the images will automagically be added to the menus.

I'd rather be phishing!

Drakesal2-Sep-14 6:59

2-Sep-14 6:59

Can you show me in code if is possible?

Maximilien2-Sep-14 7:56

Maximilien

2-Sep-14 7:56

It is quite simple, just create a new toolbar with the images you need (with the same ID as your menu ID).

and call

C++

// Load menu items images(not placed on the standard toolbars):
CMFCToolBar::AddToolBarForImageCollection(IDR_MENU_IMAGES);

at the end of the "OnCreate" of the mainframe (in case of a MFC document).

Have a look at the C++/MFC samples available on MSDN.

http://www.microsoft.com/en-us/download/details.aspx?id=5718[^]

There are examples of that in the: "VisualStudioDemo", "NewControls" samples. (among others).

I'd rather be phishing!

Drakesal2-Sep-14 20:54

C++ Open the COM Port on Windows CE Device

2-Sep-14 20:54

I done it!!!!

I did so:

1) OnCreate i put this as you told me:

CMFCToolBar::AddToolBarForImageCollection(IDR_MAINFRAME_256);

2) in Contextmenu i add these lines:

CMFCPopupMenu* PopupMenuFolders = new CMFCPopupMenu();

//Mi serve controllare prima che esce il menu per eventualmente eliminare voci del menu non permesse.
CheckWhatCanIDo(ExtractFullTreePath(htSelectedTreeItem),MainComputerinfo.szSid,m_bUserAuthorizations);

PopupMenuFolders->InsertItem(CMFCToolBarMenuButton(ID_POPUP_FOLDERS_TREE_1, NULL, 0, _T("Item 1")));

PopupMenuFolders->InsertItem(CMFCToolBarMenuButton(ID_POPUP_FOLDERS_TREE_2, NULL, 1, _T("Item 2")));

PopupMenuFolders->InsertItem(CMFCToolBarMenuButton(ID_POPUP_FOLDERS_TREE_3, NULL, 2, _T("Item 3")));

PopupMenuFolders->Create(this, point.x, point.y, NULL);

So you use directly the Toolbar Images.

Thanks all Wink | ;)

Giovanni

baranils1-Sep-14 9:27

baranils

1-Sep-14 9:27

Hello

I'm trying to open the COM Port on a Windows CE Device in C++ but without any success
I'm sure that the port exist and available becaus I can use it from cSharp

To do it with C++ I'm trying to use the CreateFile method

The first issue was that CreateFile needs a LPCWSTR
And as it is a long time that I did'nt work with C++ in Windows I had to find ho to assign a LPCWSTR Pointer

So here is my attempt
But it give an Error 2 during execution

NB : I've also tryed different declaration of the Com port but with the same bad result

wchar_t tt[]=L"COM5";
wchar_t tt[]=L"COM5\0";
wchar_t tt[]=L"COM5:";
wchar_t tt[]=L"COM5:\0";}

I can't believe that there is no way to open the Com port on Win CE in cSharp

Thanks for any help

wchar_t tt[]=L"COM5";
 int len=0;
 int result=0;
 char *buffer;
 DWORD dw;

 hComm = CreateFile( tt,
       GENERIC_READ | GENERIC_WRITE,
       0,
       0,
       OPEN_EXISTING,
       NULL,
       NULL);
   if (hComm == INVALID_HANDLE_VALUE)
   {
         dw=GetLastError();
   }

CPallini1-Sep-14 9:52

1-Sep-14 9:52

As far as I know, CreateFile's first argument must be a LPCTSTR.

THESE PEOPLE REALLY BOTHER ME!! How can they know what you should do without knowing what you want done?!?!
-- C++ FQA Lite

baranils1-Sep-14 19:06

baranils

1-Sep-14 19:06

Great !
You help me a lot

1- It is LPCTSTR indeed
2- The column is required

This is working

LPCTSTR portname = L"COM5:";

int len=0;
int result=0;
char *buffer;
DWORD dw;

hComm = CreateFile( portname,
      GENERIC_READ | GENERIC_WRITE,
      0,
      NULL,
      OPEN_EXISTING,
      NULL,
      NULL);
  if (hComm == INVALID_HANDLE_VALUE)
  {
  dw=GetLastError();
  int uu=5;
  }

CPallini1-Sep-14 19:43

1-Sep-14 19:43

The correct way to set the LPCTSTR is:

C++

LPCTSRT portname = _T("COM5:");

As far as I know, the column is NOT required.

By the way, you are welcome.

THESE PEOPLE REALLY BOTHER ME!! How can they know what you should do without knowing what you want done?!?!
-- C++ FQA Lite

Randor 2-Sep-14 12:14

Randor

2-Sep-14 12:14

Hi,

CPallini wrote:
As far as I know, the column is NOT required.

It is required. Alternatively the full device namespace path can be used: "\\\\.\\COM1"

Best Wishes,
-David Delaune

CPallini2-Sep-14 20:25

2-Sep-14 20:25

Randor wrote:
It is required

Is it a CE thing or this very MSDN example[^] is wrong?

THESE PEOPLE REALLY BOTHER ME!! How can they know what you should do without knowing what you want done?!?!
-- C++ FQA Lite

leon de boer2-Sep-14 21:53

leon de boer

2-Sep-14 21:53

It is quite specific under CE

http://msdn.microsoft.com/en-us/library/aa517318.aspx[^]

Could not be more clear =>
When lpFileName points to a COM port to open, you must include a colon after the name. For example, specify COM1: to open that port. When using IrCOMM, specify COM3:.

In vino veritas

CPallini2-Sep-14 21:59

How to fix the first column of a CListView in MFC

2-Sep-14 21:59

OK, got it, thank you very much.

By the way: Microsoft, oh my God! Smile | :)

THESE PEOPLE REALLY BOTHER ME!! How can they know what you should do without knowing what you want done?!?!
-- C++ FQA Lite

sma123#31-Aug-14 23:57

sma123#

31-Aug-14 23:57

Hi All,
Can anyone plz help me to freeze the first column of a CListView, on horizontal scroll the first column should be freezed and remaining columns should move.
I am using MFC.

Any sample is more appreciated.

Thanks,
SMA

Re: How to fix the first column of a CListView in MFC

David Crow2-Sep-14 3:50

David Crow

2-Sep-14 3:50

See here.

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Another academic question - ANSI C standard on optional function parameters

Vaclav_31-Aug-14 8:01

Vaclav_

31-Aug-14 8:01

What is a current C ( ANSI C) standard on putting <b>optional</b> parameters / attributes into function?
Or is there such a thing - ANSI standard _ anymore?
"Popular" microprocessor compiler does not allow such thing and "workaround" is function overloading.
Which IMHO in memory limited device adding more similar functions into code does not make much sense, unless you are memory chips salesman.
Cheers Vaclav

Re: Another academic question - ANSI C standard on optional function parameters

Richard MacCutchan31-Aug-14 20:47

Richard MacCutchan

31-Aug-14 20:47

You could get around it by using the main pattern, where the first parameter tells the function how many items are in the array pointed to by the next; i.e.

C++

int function(int count, void** somepointer)
{
// count tells how many items in the array pointed to by somepointer
// which may point to any type depending on requirements
}

Re: Another academic question - ANSI C standard on optional function parameters

CPallini1-Sep-14 4:24