C / C++ / MFC Discussion Boards

SavageBeast11-Nov-02 8:14

11-Nov-02 8:14

I think the only way is to create a new project and Add To Project all the files that were in the first one. I could be wrong though....

Re: Workspace name

beetung11-Nov-02 8:24

beetung

11-Nov-02 8:24

here

-DKLT

CStatic center vert with wordbreak

Dave_11-Nov-02 7:46

Dave_

11-Nov-02 7:46

I am trying to implement a CStatic control that has horizontally centered text with word break, and centered vertically as well. This control will be displaying multiple lines (as word break implies).
I tried getting the text extent by the following:

if (m_bCenterVert){<br />
CSize sz = pDCMem->GetTextExtent(strText);<br />
		TEXTMETRIC tm;<br />
		::ZeroMemory(&tm,sizeof(tm));<br />
		pDCMem->GetTextMetrics(&tm);<br />
		if (sz.cy <= tm.tmHeight){<br />
			int y = rc.CenterPoint().y;<br />
			y -= (tm.tmHeight / 2);<br />
			rc.OffsetRect(0,y - rc.top);<br />
		}<br />
	}<br />
	pDCMem->DrawText(strText,rc,dwFlags);

I think what is happening is the GetTextExtnent() is not showing the extent after the word breaking is done? It always adjusts to the center of the control, and the bottom line gets clipped.

Is there a better way?

Thanks.

(P.S.) How the heck do I indent my source code properly in one of these messages?

Farsi language in VC++ .NET

Hadi Rezaee11-Nov-02 7:42

Hadi Rezaee

11-Nov-02 7:42

Hello there,

I'm using WinXP and i installed Farsi language as Non-
Unicode on it.

I wanted to write a MFC program by VC++ .NET
VC++ .NET supports Farsi language, too.

I changed my dialog language to Farsi.
The problem is when i put a static box in dialog and when
i want to write a farsi string in the static box caption,
VC++ change my string to ?????? (question mark characters)

What's wrong ?

Regards,

My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html

Hadi Rezaie

Re: Farsi language in VC++ .NET

Mazdak12-Nov-02 4:35

Mazdak

12-Nov-02 4:35

Hi Hadi:

Have you find the solution?I have the same problem with my XP and VC.

Mazy

"And the carpet needs a haircut, and the spotlight looks like a prison break
And the telephone's out of cigarettes, and the balcony is on the make
And the piano has been drinking, the piano has been drinking...not me...not me-Tom Waits

Re: Farsi language in VC++ .NET

Hadi Rezaee12-Nov-02 5:49

Hadi Rezaee

12-Nov-02 5:49

Hello dear Mazdak,

Unfortunatly, No Frown | :(

But I installed WinXP as usual in the company, then i installed VS .NET
It works fine on that !

I can't really understand what's wrong Confused | :confused:

I asked this question in Microsoft Newsgroup too.
They got confused too Poke tongue | ;-P

If i found the answer i'll tell ya Wink | ;)

With Best Regards,

My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html

Hadi Rezaie

CopyImage woes

Jim Crafton11-Nov-02 7:29

Jim Crafton

11-Nov-02 7:29

Whilst testing some code from the framework I have been working on in various Win32 platforms I came across a rather odd bug.

Lets say we have the following:

HBITMAP hbmpOrig = getImageListHBMP()

where hbmpOrig represents the HBITMAP to a properly created bitmap image in memory

Now I want to make a copy of the handle, and according to MSDN there is a nice function called CopyImage that does just this.

So I do the following:

HBITMAP hbmpCopy = (HBITMAP)CopyImage( hbmpOrig, IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG );

Now according to the MSDN that I have at home (which is the Oct 98 MSDN that comes with VC6):
<quote>
CopyImage
<snip>
...
fuFlags
<snip>
LR_COPYRETURNORG Creates an exact copy of the image, ignoring the cxDesired and cyDesired parameters.

This is why I used the LR_COPYRETURNORG - to make a copy of the image.

The behavior on Win2000 (all sp versions), WinXP, Win98 (and presumably on 95 and ME as well) is to create a new HBITMAP value - just like the docs say.

However on Win NT4 it returns a the original value!! So this is a problem that was in the framework. One of the guys helping out on the project posted this problem to a newsgroup (or list, or whatever) on MSDN and this is what a Microsoft eng replied as :

> 
> I don't think I understand - the docs for LR_COPYRETURNORG state
> that you will get back the original if it meets the criteria. Since
> you're asking for 0 width and height, the only way the original 
> wouldn't satisfy your request is if it's a different bit depth.
> 
> The difference in behavior is either a bug in NT4, or due to the
> color depth in which you're running on the various machines. Either
> way, you could very easily create your own CopyImage() which creates
> a new bitmap and uses BitBlt() to copy the image from source to target.

Sure enough I checked on the latest MSDN docs for this and they read:
<quote>
CopyImage
<snip>
...
fuFlags
<snip>
LR_COPYRETURNORG
Returns the original hImage if it satisfies the criteria for the copy—that is, correct dimensions and color depth—in which case the LR_COPYDELETEORG flag is ignored. If this flag is not specified, a new object is always created.

WTF ! This is the behaviour on WinNT4 but NO OTHER system performs like this!!! Which is correct ? Do we just use 0 ?
So I am curious - has anyone else ran into this before ? Is there a workable solution or do we just end up writing our own version of CopyImage? This is just so incredibly annoying. Actually it is a lot more than that but I am going to refrain from a stream of expletives...sigh.

Thanks in advance !

¡El diablo está en mis pantalones! ¡Mire, mire!

Re: CopyImage woes

Christian Graus11-Nov-02 8:37

Christian Graus

11-Nov-02 8:37

I'd say write your own. I know that TransparentBlt also has trouble, quite a few people have ended up using my version and it's solved their problems with it. It seems Microsoft are not infallible Smile | :)

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Use a Dialog to another pgm created by another pgm

youssef11-Nov-02 7:00

youssef

11-Nov-02 7:00

Hi,

I create a Dialog box with some controls.
I would like to use my Dialog box for another application in VC++.
How can I do for import this dialog with all controls ?

Best Regards

youssef

Re: Use a Dialog to another pgm created by another pgm

valikac11-Nov-02 7:48

valikac

11-Nov-02 7:48

Do you mean import? One solution is to import the dialog box class in the new project. Export the dialog box template and import it in the new project.

If you meant controlling the dialog box in another program, then you should consider other solutions including file-mapping, namepipe, Winsock, and COM.

Kuphryn

Re: Use a Dialog to another pgm created by another pgm

youssef12-Nov-02 13:37

youssef

12-Nov-02 13:37

When I go to the dialog box that I want to export, the context menu can't display Export but only import.

Wink | ;-)

youssef

Changing view

act_x11-Nov-02 6:47

act_x

11-Nov-02 6:47

i have an MDI application with 2 views .

Initially in the App class I do the following :

CMultiDocTemplate* pDocTemplate;<br />
	pDocTemplate = new CMultiDocTemplate(<br />
		IDR_MDI2TYPE,<br />
		RUNTIME_CLASS(CMDI2Doc),<br />
		RUNTIME_CLASS(CChildFrame), // custom MDI child frame<br />
		RUNTIME_CLASS(CPersonalityGenerator1View));<br />
	AddDocTemplate(pDocTemplate);<br />
<br />
<br />
	secondTemplate = new CMultiDocTemplate(<br />
		IDR_MDI2TYPE,<br />
		RUNTIME_CLASS(CMDI2Doc),<br />
		RUNTIME_CLASS(CChildFrame), // custom MDI child frame<br />
		RUNTIME_CLASS(View1));

// I DO NOT ADD THIS SECOND TEMPLATE

On a New document I do the following :

if (!CDocument::OnNewDocument())<br />
		return FALSE;<br />
<br />
	CMDI2App *myApp=(CMDI2App *)AfxGetApp();<br />
	CMainFrame *mnd= (CMainFrame *)(myApp->m_pMainWnd);<br />
        CFrameWnd *allotedFrameWnd;<br />
	 allotedFrameWnd=myApp->secondTemplate->CreateNewFrame(this,0);<br />
	 myApp->secondTemplate->InitialUpdateFrame(allotedFrameWnd,this, TRUE);<br />
        allotedFrameWnd->SetActiveWindow();<br />
        allotedFrameWnd->ShowWindow(SW_HIDE);

I am suppressing this second View by hiding it AND i display the first view . This is what i want initially !

Now I need to activate this view on an On Button Event from the Toolbar

In the active View i am trying to do something as :

<br />
        void CFirstView::OnSwitchView()<br />
      {<br />
<br />
	POSITION pos = this->GetDocument()->GetFirstViewPosition();<br />
<br />
	CView *v2 = this->GetDocument()->GetNextView(pos);<br />
<br />
	v2->GetActiveWindow();<br />
	//GetParentFrame()->ActivateFrame();<br />
<br />
        v2->GetParentFrame()->ShowWindow(SW_SHOW);<br />
}

I find that the views are not getting switched . I observe no change . Please help

Application Idle Timeout

SchmoBoy11-Nov-02 6:27

SchmoBoy

11-Nov-02 6:27

I'm looking for an explanation of how to detect an idle period within an application and close dialogs and log off the application if the idle period is exceeded.

I have information on how to detect the application idle time by using Paul D.'s IdleUI DLL from Feb. 2000 MSJ, but I'm curious how to find a modal dialog that is currently displayed and close it. Will I have to send a user windows message to the dialog and write a message loop for the dialog to get it?

Any one of a number of modal dialogs in the app can be displayed when the idle time is exceeded and I can't seem to figure out how to notify these dialogs that they should close. Also, will I even get system hook notifications in the main app if a modal dialog is currently displayed?

Thanks...

Re: Application Idle Timeout

valikac11-Nov-02 7:56

valikac

11-Nov-02 7:56

Do you have control of the dialog boxes? Call its destroy function, DestroyWindow(), or post a WM_DESTROY message.

Kuphryn

Invoking another Application

act_x11-Nov-02 5:51

act_x

11-Nov-02 5:51

I have an Application in Vc++ . From this application I want to invoke another Application .

Imagine invoking Notepad to view a file .

How do I do this ?

Re: Invoking another Application

C^hris L^osinger11-Nov-02 5:56

C^hris L^osinger

11-Nov-02 5:56

_spawn, CreateProcess, WinExec and ShellExecute are all popular methods.

-c

A conclusion is simply the place where someone got tired of thinking.

Smaller Animals Software

Re: Invoking another Application

Scott H. Settlemier11-Nov-02 5:56

Scott H. Settlemier

11-Nov-02 5:56

For a command line:
Use system if you want the command line interpreter to handle it.
Use ShellExecute/ShellExecuteEx if you want the Windows shell to handle it.
Use CreateProcess if you want Windows to handle it.

serial comm.

peter ho11-Nov-02 5:40

peter ho

11-Nov-02 5:40

I try to write a program to talk to a external device via com port1. I use WriteFile() to send the ascii command: I verified to see that the ASCII command that I send out does go out to the port. I checked the correct configuration for the port(baudrate,stopbit...). But the devide still does not respond. However, the device is responding when I use windows hyperterminal to send the exact ascii command. Does anyone know why?

Does hyperterminal terminate the stream it sends out with a special ascii value that my program doesn't ?

Please help!
Thanks, peter.

Re: serial comm.

Scott H. Settlemier11-Nov-02 5:51

Scott H. Settlemier

11-Nov-02 5:51

Nope. After setting up the DCB with SetCommState and the timeouts with
SetCommTimeouts, sending out the commands via WriteFile should be enough.

Hook up COM1 to COM2 via a null-modem cable. Connect to COM2 via terminal emulator (Hyperterm or whatever.) and pretend you are the device. Connect your program to COM1 and check out what is being sent.

Rotarty dial control knob

john john mackey11-Nov-02 5:36

john john mackey

11-Nov-02 5:36

Hi, I'm looking for a MFC/Vis C++ example of a rotary dial control. I located one in the CP archives, but thought there were others.

http://www.codeproject.com/miscctrl/rotary.asp

Any help? Roll eyes | :rolleyes:

Thanks,
Johnny

Re: Rotarty dial control knob

Andreas Saurwein11-Nov-02 5:46

Andreas Saurwein

11-Nov-02 5:46

you could try this[^]

Error 4711: Signature expired

Re: Rotarty dial control knob

Anonymous11-Nov-02 5:55

Anonymous

11-Nov-02 5:55

I liked this one:

http://www.marvgolden.com/health-safety/relief_bands.htm

Poke tongue | ;-P

-- seriously though, was looking for a quick one that you might know about.

Re: Rotarty dial control knob

Andreas Saurwein11-Nov-02 6:16

Andreas Saurwein

11-Nov-02 6:16

Thats what I call a "reusable component" Smile | :)

Error 4711: Signature expired

doubt about EnumPrinters()

vgkotha11-Nov-02 4:18

vgkotha

11-Nov-02 4:18

hi i am using EnumPrinters() function in my project. this is working fine. in msdn help they given if EnumPrinters() successfully executed it returns nonzero value otherwise zero value. but i am getting zero value for successful working of EnumPrinters(). so which one is right please clarify my doubt
thank you Confused | :confused:

Re: c++ access to a dbase database

Alexandru Savescu11-Nov-02 5:39

Alexandru Savescu

11-Nov-02 5:39

Try to catch a CDBException like this:

try
{
// your code
}
catch (CDBException* e)
{
  AfxMessageBox (e->m_strError);
  e->Delete ();
}

It may give you useful information

Best regards,
Alexandru Savescu

P.S. Interested in art? Visit this!

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