C / C++ / MFC Discussion Boards

#realJSOP10-Jan-02 8:00

10-Jan-02 8:00

I would have dlg B post (relay) the message to dlg A before closing. Of course, you'd have to have the CWnd of dlg A in order to do so...

A knows about B, but does it know about C, or does only B know about C?

You could create a CTypedPtrArray of CWnd and store all of the dialogs' CWnd*'s in it, and either make it a global array or pass it in the constructors from one dlg to the next, and have each dialog add it's own CWnd* to it as it goes. Then, you could post the message to the desired CWnd*'s.

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: Modal, Modeless, Message Madness

C^hris L^osinger10-Jan-02 8:11

C^hris L^osinger

10-Jan-02 8:11

A owns both B and C. C knows about A and B knows about A (A is their parent). C doesn't know anything about B, though i guess i could hack up something that would make it available.

what a mess Smile | :)

-c

Smaller Animals Software, Inc.

Re: Modal, Modeless, Message Madness

#realJSOP10-Jan-02 8:42

#realJSOP

10-Jan-02 8:42

If A knows about both B and C, and if you want something to happen in B if C closes, just Have C post a message to A to indicate that C is closing, andf have A post a message to B that tells B that C has closed and B can react accordingly...

Sounds like you already have everything you need.

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

DIB Wierdness

#realJSOP10-Jan-02 7:09

#realJSOP

10-Jan-02 7:09

I'm capturing frames from a live video stream and every once in a while, I'll get a black and white image instead of color. Can anyone tell me what I might be doing to cause such a thing to happen?

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: DIB Wierdness

Joaquín M López Muñoz10-Jan-02 9:20

Joaquín M López Muñoz

10-Jan-02 9:20

Loose cable? Damaged card? It does not seem like a software problem to me. Maybe switching to another testing scenario (different cable/machine/card) could shed some light.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Visual C++

Rajveer10-Jan-02 7:04

Rajveer

10-Jan-02 7:04

Hi, not really a programming question. Some punk deleted the start up icon of my visual C++ from the start menu and from the desktop. How do I bring it back?
(I don't have the CD)

Re: Visual C++

Wolfram Steinke10-Jan-02 7:43

Wolfram Steinke

10-Jan-02 7:43

Find MSdev.exe in

Program Files\Microsoft Visual Studio\Common\MSdev98\bin

and drag/drop it to the part of the start menu you wish.

Happy programming!!

2 issues...

BlackSmith10-Jan-02 4:51

BlackSmith

10-Jan-02 4:51

1. Where can I find a process-quering-class that can do the following:
I. Get a process's memory usage at a specific given time (Must).
II. Get a process's CPU usage at a specific given time (Must).
III. Can enumerate all running processes (Optional...).

2. I want to download CPop3Connection class that I found at this site
using the search engine. Unfotunately I can't find it.
I'll be very glad if someone will leave a link to it...

--BlackSmith--

"With the help of all mighty", 2001, Me.

Problems with Ms Word and Automation

Braulio Dez10-Jan-02 4:16

Braulio Dez

10-Jan-02 4:16

Hi,

I´m using Automation to have in one splitter window a Word window and in the right pane some buttons to add graphics tables...

The problem comes on XP, when I close that window, I get some strange error when it´s close ( OnSize is called after the window is destroyed), here is the code i call

void CReportFrame::OnClose() 
{
    TRY {
	// must destroy report bar manually
	CWnd* wnd = m_wndSplitter.GetPane(0, 0);
	wnd->DestroyWindow();
	delete wnd;

	// handle inplace Word view
	CReportDoc* pDoc = GetReportDoc();
	COleClientItem* pItem = pDoc->GetPrimarySelectedItem(GetReportWordView());
	if (pItem != NULL) {
	    pItem->Delete();
	    //delete pItem;
	}

	CFrameWnd::OnClose();

	delete pItem;
    } CATCH(CException, e) {
	AfxMessageBox("CReportFrame::OnClose : exception caught.");
	ASSERT(false);
	e;
    } END_CATCH;
}

Thanks in advance, Bye !
Braulio

Re: Problems with Ms Word and Automation

Ernest Laurentin10-Jan-02 4:29

Ernest Laurentin

10-Jan-02 4:29

Maybe you should use: m_wndSplitter.DeleteView(0, 0);
instead of:

// must destroy report bar manually
CWnd* wnd = m_wndSplitter.GetPane(0, 0);
wnd->DestroyWindow();
delete wnd;

- God bless the World

Calling CPropertSheet from and explicity linked Extension DLL

Asim Hussain10-Jan-02 4:09

Asim Hussain

10-Jan-02 4:09

I'm trying to call a Property Sheet from an explicitly linked
Extenstion DLL.

The DoModal function is called but no Window appears, I get the trace message "CPropertySheet Returned Error code 0"?? But that means Success!

It Works for Dialogs etc..

Has anybody else had the same problem?

cheers

Asim

.........
I'd rather be rich than stupid.

Re: Calling CPropertSheet from and explicity linked Extension DLL

Roger Allen10-Jan-02 6:17

Roger Allen

10-Jan-02 6:17

As a possible aolution, have you called AFX_MANAGE_STATE in the DLL code so that the correct dialog resources can be found?

Roger Allen
Sonork 100.10016

problem with WM_MOUSEWHEEL

Anders Molin10-Jan-02 3:34

Anders Molin

10-Jan-02 3:34

Hey,

I have a control derived directly from CWnd.

The WM_MOUSEWHEEL message is never sent to my window/control, I have also tried with spy++, but no WM_MOUSEWHEEL Confused | :confused:

I have tried to define _WIN32_WINNT 0x0400 in stdafx.h, but it made no difference...

Anyone got an idea?

- Anders

Money talks, but all mine ever says is "Goodbye!"

Re: problem with WM_MOUSEWHEEL

BlackSmith10-Jan-02 4:53

BlackSmith

10-Jan-02 4:53

E-mail me the source code + your E-mail.

--BlackSmith--

"With the help of all mighty", 2001, Me.

Re: problem with WM_MOUSEWHEEL

Michael P Butler10-Jan-02 5:23

Michael P Butler

10-Jan-02 5:23

What OS has this problem?

Michael Smile | :)

Re: problem with WM_MOUSEWHEEL

Anders Molin10-Jan-02 5:54

Anders Molin

10-Jan-02 5:54

I'm currently running WinXP Professional...

- Anders

Money talks, but all mine ever says is "Goodbye!"

Question on Hook or API Interception

gordingin10-Jan-02 3:22

gordingin

10-Jan-02 3:22

I want to change the common dialog box for all applications, new, old, all of them. Should I use a CBT Hook or intercept the API itself. Are there other options? Any opions?

Thanks
Ralph Krausse

Re: Question on Hook or API Interception

Ernest Laurentin10-Jan-02 3:39

Ernest Laurentin

10-Jan-02 3:39

Microsoft Detours Library

- God bless the World

Dynamic handlers?

Fredrik Skog10-Jan-02 3:16

Fredrik Skog

10-Jan-02 3:16

How does one go about to implement handlers for buttons that are created dynamically at runtime? E.g. I want to create a button which should run a program when pressed. The program to run is configured by the user. I was thinking of storing the program name within the button object. Then I could use one handler for all of the buttons, but how do I know which button it was that called the handler (in order to retrieve the program name)?

Cheers,

/Fredrik

Do you Sonork? I do! 100.11430:PhatBoy

Re: Dynamic handlers?

Thomas Ascher10-Jan-02 3:39

Thomas Ascher

10-Jan-02 3:39

You can use ON_COMMAND_RANGE to handle a range of commands:

class CMyDialog : public CDialog
{
afx_msg void OnHandleCommands(UINT nID);
DECLARE_MESSAGE_MAP()
};

BEGIN_MESSAGE_MAP(CMyDialog, CDialog)
ON_COMMAND_RANGE(ID_COMMAND_FIRST, ID_COMMAND_LAST, OnHandleCommands)
END_MESSAGE_MAP()

void CMyDialog::OnHandleCommands(UINT nID)
{
// nID contains the ID of the command to handle
}

flickerfree dialog painting..

Bernhard10-Jan-02 2:55

Bernhard

10-Jan-02 2:55

i have made a dialog.. resize it by hand (it's an easy one)
now i've tried to make this whole shista flickerfree.. but i don't get it flickerfree..
i've tried "clip children" and "clip siblings".. but it still flickers..

any ideas?
thanks in advance
bernhard

Sometimes I think the surest sign for intelligent life elsewhere in
the universe is that none of them ever tried to contact us.

Re: flickerfree dialog painting..

Roger Allen10-Jan-02 6:11

Roger Allen

10-Jan-02 6:11

Override the dialog WM_ERASEBKGND message and do this :

BOOL CAnalysis::OnEraseBkgnd(CDC* pDC) 
{
	CRect	clip ;
	static int dont_erase_indexes[] =
			{
			IDC_WAVELENGTHS_LABEL,
			IDC_COMPONENTS,
			IDC_COMPONENTS_SPIN,
			IDC_HSCROLL
			} ;
	pDC->SaveDC() ;
	for (int i = 0 ; i < sizeof(dont_erase_indexes) / sizeof(int) ; i++)
		{
		GetDlgItem(dont_erase_indexes[i])->GetWindowRect(&clip);		// get rect of the control
		ScreenToClient(&clip);
		pDC->ExcludeClipRect(&clip);
		}
	pDC->GetClipBox(&clip);
    pDC->FillSolidRect(clip, GetSysColor(COLOR_BTNFACE));
	pDC->RestoreDC(-1) ;
	return FALSE;
}

Just add the ID's of the control on the dialog to the static array.

Roger Allen
Sonork 100.10016

Re: flickerfree dialog painting..

Bernhard10-Jan-02 20:27

Bernhard

10-Jan-02 20:27

thank you for your reply..
now i know that i the control itself has got some problems with memory-drawing too..
but i really like that you can learn alot from code from other people
(i didn't knew that you could give -1 as a parameter to RestoreDC)

great thanks

Bernhard

Sometimes I think the surest sign for intelligent life elsewhere in
the universe is that none of them ever tried to contact us.

Anybody who knows a tools for downloads site of CGI?

LeighSword10-Jan-02 2:14

LeighSword

10-Jan-02 2:14

thanks a lot.

Re: Anybody who knows a tools for downloads site of CGI?

markkuk10-Jan-02 20:07

markkuk

10-Jan-02 20:07

Do you mean Common Gateway Interface or Computer Generated Images?

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.