tray icon problem - C / C++ / MFC Discussion Boards

Chris Richardson19-Dec-02 18:06

19-Dec-02 18:06

I have seen something just like this on CodeProject or CodeGuru a month or two ago. I know it exists, but I can't remember where. I just tried to find it, but didn't have any luck. I'm sure you can find it, just keep searching.

Chris Richardson

Programmers find all sorts of ingenious ways to screw ourselves over. - Tim Smith

Modeless dialog in Console app

Jonathan de Halleux18-Dec-02 23:17

Jonathan de Halleux

18-Dec-02 23:17

Anybody has an idea on handling a modeless dialog in a console app ?

Jonathan de Halleux.

Re: Modeless dialog in Console app

Rage18-Dec-02 23:20

Rage

18-Dec-02 23:20

As far as i know it is not possible Frown | :(

~RaGE();

Re: Modeless dialog in Console app

Hans Ruck18-Dec-02 23:54

Hans Ruck

18-Dec-02 23:54

Maybe this article[^] could help...
Blush | :O

rechi

Re: Modeless dialog in Console app

Rage19-Dec-02 0:08

Rage

19-Dec-02 0:08

Gulp .. did not know about the article ... sorry ... Roll eyes | :rolleyes:

~RaGE();

cin and modeless

Jonathan de Halleux19-Dec-02 0:12

Jonathan de Halleux

19-Dec-02 0:12

Yep, I had seen this article. Smile | :)

The question is : how can I use cin to get text entry and in the background have modeless dialogs ???? Confused | :confused:

Jonathan de Halleux.

Re: cin and modeless

Hans Ruck19-Dec-02 0:59

Hans Ruck

19-Dec-02 0:59

Create a worker thread in main.
When starting the worker, call CreateDialog to create the modeless as in the article. Then write the message loop and catch there all the messages you throw from the dialog. All this stuff in the worker's handler...
Then you could synchronize the worker with the main, using the system dedicated objects.

Generally, when you call CreateDialog from a thread with NULL as the parent window, the modeless' messages will be droped in that thread's message loop.

rechi

tray icon problem

r i s h a b h s18-Dec-02 23:14

r i s h a b h s

18-Dec-02 23:14

i have an mfc dialog based app.
in the initInstance function, I'm creating an object of the dialog box (provided by the wizard) and creating a tray icon using NotifyIconData.(without showing the dialog box).

NOW i want to show this dialog box when i right click on this icon but multiple instances of dialog box appear even if i move my mouse over the icon, while i have used WM_LBUTTONDBLCLK in the code below (InitInstance)?

how do i go about it?
this is my src code

CSchdDlg dlg;

m_NotifyIconData.cbSize = sizeof m_NotifyIconData;
m_NotifyIconData.hWnd =dlg.GetSafeHwnd();
m_NotifyIconData.uID = 1;
m_NotifyIconData.uCallbackMessage = WM_LBUTTONDBLCLK ;
m_NotifyIconData.uFlags = NIF_MESSAGE|NIF_ICON|NIF_TIP;
m_NotifyIconData.hIcon = LoadIcon(IDR_MAINFRAME);
strcpy(m_NotifyIconData.szTip, AfxGetAppName());

Shell_NotifyIcon(NIM_ADD, &m_NotifyIconData);

a quick & detailed response will be heartly appreciated!

thanx
rishabhs

rishabhs

Re: tray icon problem

Zdenek Navratil19-Dec-02 0:07

Zdenek Navratil

19-Dec-02 0:07

This is what works for me:

#define UWM_ICONNOTIFY WM_APP+x

BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
//...
ON_MESSAGE(UWM_ICONNOTIFY, OnSystemTrayIconNotify)
//...
END_MESSAGE_MAP()

LRESULT CMyDlg::OnSystemTrayIconNotify(WPARAM, LPARAM lParam)
{
switch (lParam)
{
case WM_LBUTTONDBLCLK:
// do something
// etc.
}
return 0;
}

// Initialize system tray icon
//
m_nid.cbSize = sizeof(NOTIFYICONDATA);
m_nid.hWnd = m_hWnd;
m_nid.uID = ID_SYSTEMTRAYICON;
m_nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
m_nid.uCallbackMessage = UWM_ICONNOTIFY;
m_nid.hIcon = (HICON)LoadImage(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDI_MYTRAYICON), IMAGE_ICON, 16, 16, 0);
strcpy(m_nid.szTip, "Blah, blah");
Shell_NotifyIcon(NIM_ADD, &m_nid);

HTH
Zdenek

Re: tray icon problem

r i s h a b h s19-Dec-02 0:15

r i s h a b h s

19-Dec-02 0:15

can u be a bit more specific with ur code.

how to get the :-
ON_MESSAGE(UWM_ICONNOTIFY, OnSystemTrayIconNotify)

in the message map declaration

Re: tray icon problem

Zdenek Navratil19-Dec-02 1:14

Zdenek Navratil

19-Dec-02 1:14

I suppose a Class Wizard has created a
BEGIN_MESSAGE_MAP(CYourDialog, CDialog)...END_MESSAGE_MAP()
sequence for CYourDialog.
Using your editor, paste a line
ON_MESSAGE(UWM_ICONNOTIFY, OnSystemTrayIconNotify)
there (for example just below the BEGIN_MESSAGE_MAP() macro line).
Avoid a temptation to put it somewhere between
//{{AFX_MSG_MAP(CYourDialog)
//}}AFX_MSG_MAP
since Class Wizard might get confused.
Insert the declaration of your icon message handler OnSystemTrayIconNotify
into CYourDialog class. Like this:
afx_msg LRESULT OnSystemTrayIconNotify(WPARAM, LPARAM);

That's all.
Zdenek

Re: tray icon problem

Fredrik Skog19-Dec-02 0:12

Fredrik Skog

19-Dec-02 0:12

Setting uCallbackMessage = WM_LBUTTONDBLCLK causes that message to be sent every time the mouse pointer is over the tray icon.
You need to specify your own message and handle that in a subclassed WindowProc.
Like:

#define WM_NOTIFY_ICON		(WM_USER + 10)	//+10 because some of the first may be used.

m_NotifyIconData.uCallbackMessage = WM_NOTIFY_ICON;

LRESULT MyDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	// TODO: Add your specialized code here and/or call the base class
	switch(message)
	{
	case WM_NOTIFY_ICON:
		switch (lParam)
		{
		case WM_LBUTTONDBLCLK:
			ShowWindow(SW_SHOWNORMAL);
			TRACE("> Left mouse button double-clicked on icon.\n");
			SetForegroundWindow();	// Window to front if behind other windows.
			break;					// This is used when the app is not minimized,
									// but hidden behind other windows.
		default:
			break;
		}
		break;

	default:
		break;
	}
	return CDialog::WindowProc(message, wParam, lParam);
}

Cheers,
Fredrik

"Felix qui potuit rerum cognoscere causas."

Re: tray icon problem

r i s h a b h s19-Dec-02 0:47

r i s h a b h s

19-Dec-02 0:47

fredrik sorry to bother u but plz. tell me where do i put
the windowproc function (In the Cwnd derived class or CDialog derived class).

Re: tray icon problem

Fredrik Skog19-Dec-02 0:50

Fredrik Skog

19-Dec-02 0:50

Use the Class Wizard to subclass the WindowProc of your dialog.

Cheers,
Fredrik

"Felix qui potuit rerum cognoscere causas."

Re: tray icon problem

r i s h a b h s19-Dec-02 1:22

r i s h a b h s

19-Dec-02 1:22

THANX FREDRIK! that worked fine.

but whenever i dblclick on the icon a new dialog box ois opened. How to make sure that only one dialog is opened at a time.

rishabhs

Re: tray icon problem

Fredrik Skog19-Dec-02 1:24

Fredrik Skog

19-Dec-02 1:24

It would help if you posted some code.

Cheers,
Fredrik

"Felix qui potuit rerum cognoscere causas."

Listing network paths?

scy7he18-Dec-02 23:08

scy7he

18-Dec-02 23:08

How can i list network paths? Something like what the command dir does is what i want.

Re: Listing network paths?

Andreas Saurwein19-Dec-02 1:22

Andreas Saurwein

19-Dec-02 1:22

Have a look at the FindFile API for the dir functionality, the network part is a bit trickier (and depends on what you want to do).

I don't think this is a serious possesion, and the evil most likely comes from your hand. Colin J Davies, The Lounge

Different versions of ODBC drivers accept different parameters (Execute())??

Wenrich18-Dec-02 22:29

Wenrich

18-Dec-02 22:29

in my app, i have the following code run successfully with
MS Access Driver 4.00.6019.00, but fail with version
4.00.6200.00. the exception thrown says
"[ODBC MS Access Driver] Too few parameters. Expected 1."

// _ConnectionPtr m_pConnection;
// _RecordsetPtr m_pRecordSet;
m_pRecordSet = m_pConnection->Execute(_bstr_t(query), &vRecsAffected, adOptionUnspecified);

How should i overcome this problem? is there a generic way
that works with different versions of MS Access Driver?

Thanks a lot!

Wenrich

Re: Different versions of ODBC drivers accept different parameters (Execute())??

Pavel Klocek18-Dec-02 22:47

Pavel Klocek

18-Dec-02 22:47

What is in query?
Maybe some field name is equal to a reserved word added in new version?

Pavel
Sonork 100.15206

Re: Different versions of ODBC drivers accept different parameters (Execute())??

Wenrich19-Dec-02 13:42

Wenrich

19-Dec-02 13:42

Thanks Varel!
this query is

CString query;
query.Format(_T("SELECT * FROM %s WHERE (%s='%s') AND (%s='%s')"), table, key, value1, field, value2);
// table:"client", key:"ID", value1:"some name", field:"Pass", values"some
// password"

Is there anything wrong with the field names?

Thanks a lot!

Re: Different versions of ODBC drivers accept different parameters (Execute())??

Pavel Klocek20-Dec-02 0:35

Pavel Klocek

20-Dec-02 0:35

I would try:

SELECT * FROM [%s] WHERE ([%s]='%s') AND ([%s]='%s')

Doesn't some of the values contain an ' character (apostrof)?

Pavel
Sonork 100.15206

Handle of a Bitmap Image ?

ArunKGoyal18-Dec-02 22:26

ArunKGoyal

18-Dec-02 22:26

How do I get the Handle of a Bitmap image which is created in bitmap resource editor.

Re: Handle of a Bitmap Image ?

PDStone18-Dec-02 22:34

PDStone

18-Dec-02 22:34

CBitmap bBitmap;
bBitmap.LoadBitmap(RESOURCE_ID);
HBITMAP hBitHandle = (HBITMAP)bBitmap;

Bear in mind when the CBitmap goes out of scope the handle will be invalid;
You may need to make the CBitmap a member Variable

Re: Handle of a Bitmap Image ?

Dominik Reichl18-Dec-02 22:39

Dominik Reichl

18-Dec-02 22:39

First you have to load the bitmap using the LoadBitmap function. This function needs the instance of the app and an LPCTSTR string identifing the resource.

HBITMAP hbm;

hbm = LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_REDCHICKEN));

...

DeleteObject(hbm);

Don't forget to release the bitmap handle using DeleteObject.

Big Grin | :-D

-Dominik

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