TrackPopupMenu - C / C++ / MFC Discussion Boards

Nish Nishant4-Jun-02 17:26

4-Jun-02 17:26

Michel Prévost wrote:
The . shows the member of _com_ptr_t class. this class has the -> operator overloaded, which shows you the member of ISimplePgp class.

Thanks Michel. Makes sense now Smile | :)

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

Re: Smart Pointers - revisited

nay4-Jun-02 18:23

nay

4-Jun-02 18:23

Michel is right it's just overloaded.

Extra info.

I finished a Design Patterns class last semester and the overloaded operator -> was given as an example. It's a Proxy design pattern. If you're interested here's a link.

Houston Design Patterns [same page]

It's in the Structural Patterns. Check out the C++ demo for Proxy design pattern. When you get to the source I believe it's the 3rd example.

nay

Help, please! How to getactiveview from MyApp

lucy4-Jun-02 16:49

lucy

4-Jun-02 16:49

Hello, CPians, I have an MFC SDI application, and I want to access to CMyView from CMyApp::InitInstance(), how can I get it?

Thanks a lot in advance! Rose | [Rose]

Re: Help, please! How to getactiveview from MyApp

Nish Nishant4-Jun-02 17:18

Nish Nishant

4-Jun-02 17:18

lucy wrote:
I want to access to CMyView from CMyApp::InitInstance(),

Have you created your main frame window? If so you can call GetActiveView on the main frame pointer.

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

Re: Help, please! How to getactiveview from MyApp

lucy4-Jun-02 17:26

lucy

4-Jun-02 17:26

yes, it should be created in the standard initialization code in CMyApp::InitInstance(). But what is the pointer to the main frame window? I tried to use m_pMainWnd, but it has no member function of GetActiveView.

Re: Help, please! How to getactiveview from MyApp

Nish Nishant4-Jun-02 17:25

Nish Nishant

4-Jun-02 17:25

((CFrameWnd*)m_pMainWnd)->GetActiveView()

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

Re: Help, please! How to getactiveview from MyApp

lucy4-Jun-02 17:39

lucy

4-Jun-02 17:39

Nish, you are so great! Thank you so much! Rose | [Rose]

Okay, now I can go to bed to have my beauty sleep. Smile | :)

TrackPopupMenu

Steve L.4-Jun-02 15:53

Steve L.

4-Jun-02 15:53

I have an icon in the system tray. When I right click the icon I do this:

pPopup->TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON,
	point.x, point.y, AfxGetMainWnd(),NULL);

where pPopup is a pointer to my menu. When I right click it, if you dont want to do anything you would click outside of the popup menu and it dissappears, however it doesnt dissappeat unless you click the mouse outside of the menu then hover the mouse over the menu. How do I fix that?

-Raffi

Re: TrackPopupMenu

Shog⁹4-Jun-02 16:11

Shog⁹

4-Jun-02 16:11

Try using TPM_RIGHTTBUTTON, or not using TPM_LEFTBUTTON.

--------

Life is fraught with opportunities to keep your mouth shut.

--Shog⁹ --

Re: TrackPopupMenu

Steve L.4-Jun-02 16:09

Steve L.

4-Jun-02 16:09

I have, it has no affect.

-Raffi
Why do today what can be put of until tommorrow?

Re: TrackPopupMenu

Shog⁹4-Jun-02 16:20

Shog⁹

4-Jun-02 16:20

Raffi wrote:
I have, it has no affect.

Odd...

I just checked MSDN, it gives this little tidbit:

To display a context menu for a notification icon, the current window must be the foreground window before the application calls TrackPopupMenu or TrackPopupMenuEx. Otherwise, the menu will not disappear when the user clicks outside of the menu or the window that created the menu (if it is visible). However, when the current window is the foreground window, the second time this menu is displayed, it displays and then immediately disappears. To correct this, you must force a task switch to the application that called TrackPopupMenu at some time in the near future. This is done by posting a benign message to the window or thread, as shown in the following code sample:

SetForegroundWindow(hDlg);

// Display the menu
TrackPopupMenu(   hSubMenu,
                  TPM_RIGHTBUTTON,
                  pt.x,
                  pt.y,
                  0,
                  hDlg,
                  NULL);

PostMessage(hDlg, WM_NULL, 0, 0);

Have you tried that?

--------

Life is fraught with opportunities to keep your mouth shut.

--Shog⁹ --

Re: TrackPopupMenu

Steve L.4-Jun-02 16:17

Steve L.

4-Jun-02 16:17

Thats exactly the problem. Thanks for the fix. Smile | :)

-Raffi
Why do today what can be put of until tommorrow?

Re: TrackPopupMenu

Michael Dunn4-Jun-02 16:17

Michael Dunn

4-Jun-02 16:17

That's a long-standing known bug with tray icon menus. See Q135788 for a fix.

--Mike--
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Re: TrackPopupMenu

Nish Nishant4-Jun-02 17:22

Nish Nishant

4-Jun-02 17:22

Mike

I think this one should go in your C++ FAQ

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

File Associations

Dor4-Jun-02 15:46

Dor

4-Jun-02 15:46

Does anybody know how to or even if you can register file associations in VC++.
for example,
when you double click on a .doc, it will open in word.
that kind of stuff, i know you can do it in InstallShield, but is there a way to do it in the code?
Cheers
Dor

Re: File Associations

Rama Krishna Vavilala4-Jun-02 16:04

Rama Krishna Vavilala

4-Jun-02 16:04

Yes you can. You need to set certain registry keys. The details can be found in this link.

Re: File Associations

Rama Krishna Vavilala4-Jun-02 16:06

Rama Krishna Vavilala

4-Jun-02 16:06

If you are using MFC you could look at CWinApp::RegisterShellFileTypes. You may even refer to the code of the function to figure out how it is done.

Re: File Associations

Dor4-Jun-02 16:11

Dor

4-Jun-02 16:11

thanks

Re: File Associations

Alexandru Savescu4-Jun-02 21:35

Alexandru Savescu

4-Jun-02 21:35

If you create a MFC SDI or MDI application with the wizard, some time at step 4 (i'm not sure) you can click the advanced button and define custom file format for your application. Then the wizard will crete a REG file in the project directory. You can have a look at it and see how they do it.

Best regards,
Alexandru Savescu

Accelerator Keys

Anthony98874-Jun-02 14:23

Anthony9887

4-Jun-02 14:23

I have Added the accelerator keys to a dialog box. When I run the application I don't see the underline under the leter. Except when I hold down the ALT key then its displayed. I am running Windows 2000. I noticed it works fine under Windows ME. Anyone know how to enable this to show always at runtime.

Thanks

Re: Accelerator Keys

dazinith4-Jun-02 15:56

dazinith

4-Jun-02 15:56

this is an option in the OS itself.. go to control panel, display, effects tab, one of the check boxes says 'Hide keyboard navigation indicators until i use the Alt key'

so if they don't show its the settings

hope that helps Smile | :)

-dz

Re: Accelerator Keys

Anthony98875-Jun-02 3:14

Anthony9887

5-Jun-02 3:14

Thanks, do you know how to display the underline even though is disabled in the control panel. Just like in Word, its always displayed.

Center text in a list box?

4-Jun-02 13:17

Can I center text in a Listbox? I know I can choose left or right, but what about center?

I'm not using MFC by the way Wink | ;)

Thanks for any reply

Re: Center text in a list box?

Rickard Andersson²⁰4-Jun-02 21:05

Rickard Andersson²⁰

4-Jun-02 21:05

Make it owner-draw!
I don't know excactly in Win32 API but you have to make it owner-draw! Smile | :)

Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C# and C++!

ASCII Code

Frank Deo4-Jun-02 12:18

Frank Deo

4-Jun-02 12:18

Hello People,

Is there an equivelant function in C++ (or c) to the Visual Basic Function "Asc".

For example, converting a given character to its ASCII code?

In VB: integer = Asc("A")

Thanks,
Frank

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