Help: ClassWizard error! - C / C++ / MFC Discussion Boards

valikac17-Sep-02 21:17

17-Sep-02 21:17

Post a message at the end of Proc_Thread() informing the primary thread that the worker thread has closed. That will help make synchronization smoother.

Kuphryn

Re: what is wrong with my thread? help

Steve S17-Sep-02 21:27

Steve S

17-Sep-02 21:27

Another alternative would be to WaitForSingleEvent on the thread handle in your UI thread, to guarantee that the worker thread has completed.

When the "primary" thread terminates, this usually calls ExitProcess at some stage, which kind of tears things from under the feet of other threads...

Steve S
[This signature space for rent]

Re: what is wrong with my thread? help

includeh1017-Sep-02 21:27

includeh10

17-Sep-02 21:27

but i can't find the function WaitForSingleEvent?
thx

Re: what is wrong with my thread? help

Steve S17-Sep-02 22:02

Steve S

17-Sep-02 22:02

Ah. That's because I meant to type WaitForSingleObject instead.
Frown | :-(

Sorry about that, it's early in the morning here, and I didn't get much sleep.

Steve S
[This signature space available for rent]

Re: what is wrong with my thread? help

includeh1017-Sep-02 21:44

includeh10

17-Sep-02 21:44

thx, it is 100% new for me, but what does post a message mean?
post what messge? inside or outside loop?
please give me more details.

thx

includeh10

Re: what is wrong with my thread? help

valikac18-Sep-02 4:35

valikac

18-Sep-02 4:35

Posting a message at the end of a thread will update your primary thread on the status of the worker thread. For example, the message could trigger the primary thread to display the updated data. Furthermore, you should always post a message so that the primary thread can call closehandle() to ensure the thread is closed.

Kuphryn

Re: what is wrong with my thread? help

Stephane Rodriguez.17-Sep-02 22:09

Stephane Rodriguez.

17-Sep-02 22:09

returning from your Proc_Thread procedure automatically destroys the thread, without needing to send it any other message. A normal Proc_Thread has an event/message loop of the form :

// Wait for the signal to create a component.
BOOL bContinue = TRUE;

while ( bContinue )
{
    switch( ::WaitForSingleObject( m_hComponentReadyEvent, m_WaitTime) )
    {
        // Update the surface becoz now it's ready
        case WAIT_OBJECT_0:
            if ( !m_bShouldStopNow )
            {
                //processPublishDirectory();
            }
            break ;
        // Process Windows messages.
        case (WAIT_OBJECT_0 + 1):
            MSG msg ;
            while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
            {
                if (msg.message == WM_QUIT)
                {
                    bContinue = FALSE ;
                    break ;
                }
                                    TranslateMessage(&msg);
                DispatchMessage(&msg) ;
            }
            break ;
        // Do background processing.
        case WAIT_TIMEOUT:
            if (m_bShouldStopNow)
                bContinue=FALSE;
            break ;

        default:
            break;
    }
}

MS quote (http://www.microsoft.com/ddk) : As of September 30, 2002, the Microsoft® Windows® 2000 DDK, the Microsoft Windows 98 DDK, and the Microsoft Windows NT® 4.0 DDK will no longer be available for purchase or download on this site.

Help: ClassWizard error!

Daniel Strigl17-Sep-02 20:38

Daniel Strigl

17-Sep-02 20:38

I have a problem...
When I am add some 'defines' in the 'resource.h' file, like

#define ID_BAND 110
...

and after that I try to open the class wizard, the class wizard put an error on the screen: "Parsing error: afx Message... input string: "LPTSTR MakeString(UINT..."

I searched and found out, that the following section in the 'MainFm.h' file producing the error:

// Generated message map functions
protected:
  //{{AFX_MSG(CMainFrame)
  afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
    LPTSTR MakeString(UINT stringID);
    LPTSTR m_ToolTipsTable[NUM_TOOL_TIPS];
	// NOTE - the ClassWizard will add and remove member functions here.
	//    DO NOT EDIT what you see in these blocks of generated code!
  //}}AFX_MSG
  DECLARE_MESSAGE_MAP()

Can anyone help me??? (I use embedded Visual C++ 3.0)

--
Nice greets, Daniel.

Re: Help: ClassWizard error!

Steve S17-Sep-02 21:18

Steve S

17-Sep-02 21:18

All you need to do is to move the declarations of MakeString and m_ToolTipsTable outside the //{{AFX_MSG(CMainFrame) and //}}AFX_MSG block, so just before or just after is fine. The ClassWizard parses the code inside that block (among others), and it isn't able to cope that well with arbitrary declarations.

Steve S
[This signature space is available for rent]

Re: Help: ClassWizard error!

Daniel Strigl17-Sep-02 21:39

Daniel Strigl

17-Sep-02 21:39

Thanks!!!

--
Nice greets, Daniel.

Change the bitmap of a CommandBand button...

Daniel Strigl17-Sep-02 20:00

Daniel Strigl

17-Sep-02 20:00

How can I change the bitmap of a button in a CommandBand?
The images are stored in a image list.
I use embedded Visual C++ 3.0 with WinCE 3.0.

--
Nice greets, Daniel.

Using ShellExecute to send email

Abin17-Sep-02 18:02

Abin

17-Sep-02 18:02

Hi all, I'm trying to use ShellExecute API to send email, but got some problems, the biggest one is that I don't know how to add line breaks into the email body, below are my code:

// I want to send an email to "abc@def.com",
// with "hello" as subject,
// and "hi,\nHow are you?" as the body.
// Note that I want a line break between "Hi," and "How"
::ShellExecute(NULL,
             "open",
             "mailto:abc@def.com?subject=hello&body=hi,\nHow are you?",
             NULL,
             NULL,
             SW_HIDE);

Everything went OK except the line break got eaten, I also tried "\n\r", no good either. Anyone know how to add line breaks? Thanks in advance.

Bin

Re: Using ShellExecute to send email

Shog⁹17-Sep-02 19:19

Shog⁹

17-Sep-02 19:19

You're probably better off just using MAPI. Do a search for MAPI here, there are a few nice articles / wrapper classes.

[Shog⁹]

Re: Using ShellExecute to send email

Abin17-Sep-02 20:17

Abin

17-Sep-02 20:17

I tried those classes, they didn't work because my SMTP requires user authentication before sending messages(which SMTP does not nowadays?).

Re: Using ShellExecute to send email

Jon Hulatt17-Sep-02 22:15

Jon Hulatt

17-Sep-02 22:15

You'd need to url encode all the arguments sent to the mailto link.

STL is a religeon. Enquiries to Reverend Christian Graus

Re: Using ShellExecute to send email

Stephane Rodriguez.17-Sep-02 22:16

Stephane Rodriguez.

17-Sep-02 22:16

You've got to use %0D%0A instead or \r\n.

RFC 2368[^]

Re: Using ShellExecute to send email

Abin17-Sep-02 22:38

Abin

17-Sep-02 22:38

Thank you, A LOT!

Re: Using ShellExecute to send email

adamUK17-Sep-02 22:15

adamUK

17-Sep-02 22:15

You need to use %0A for linefeed and %0D for carriage return.. also you need to put %20 instead of every space...e.g. "How are you" should become "How%20are%20you%3F"

see

http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q192341&[^]

Adam.

www.beachwizard.com/travelogue[^]

"I spent a lot of my money on booze, birds and fast cars. The rest I just squandered"
George Best.

Re: Using ShellExecute to send email

[James Pullicino]17-Sep-02 23:22

[James Pullicino]

17-Sep-02 23:22

Take a look at CDO2000, it may be useful.

--James Pullicino

Drinking In The Sun
Forgot Password?

Where ANSI C Library Source Code can be downloaded?

shi17-Sep-02 17:08

shi

17-Sep-02 17:08

I am a jackaroo about C. Smile | :)

Thanks~

Re: Where ANSI C Library Source Code can be downloaded?

C^hris L^osinger17-Sep-02 18:18

C^hris L^osinger

17-Sep-02 18:18

you can get MS's if you get a full version of Visual Studio.

or, you can just go get yourself a copy of gcc.

-c

"Half of the harm that is done in this world is due to people who want to feel important."
-- TS Elliot

bool question?

Rene De La Garza17-Sep-02 17:03

Rene De La Garza

17-Sep-02 17:03

im trying to serialize something but this works;
ar << m_bool;

and this doesn`t:
ar >> m_bool;

why?

Re: bool question?

.dan.g.17-Sep-02 17:16

.dan.g.

17-Sep-02 17:16

i notice in "afx.h" that the CArchive class does not have an explicit override for '<< bool' so this may be the problem.

try casting it like this (as an experiment):

ar << (int)m_bool;

ar >> (int&)m_bool;

Re: bool question?

Rene De La Garza17-Sep-02 17:22

Rene De La Garza

17-Sep-02 17:22

thanks it compiles just let me check if it works fine Big Grin | :-D

Re: bool question?

Mike Nordell18-Sep-02 3:37

Mike Nordell

18-Sep-02 3:37

As already explained, this was just an <i>experiment</i>.

For "the real stuff" you should provide your own streaming operators like:
CArchive& operator<<(CArchive&, bool);
CArchive& operator>>(CArchive&, bool&);

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