Re: How to have access to the members of a class - C / C++ / MFC Discussion Boards

Re: PropertyPage resizing

PJ Arends4-Mar-04 17:54

PJ Arends

4-Mar-04 17:54

http://www.codeproject.com/property/resizableproperties.asp[^]

Sonork 100.11743 Chicken Little

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

Within you lies the power for good - Use it!

How to print web page to image file

AWebDude4-Mar-04 10:30

AWebDude

4-Mar-04 10:30

Is there a way to save the web page contents to an image. Just the contents, no toolbar, no status bar. In other words print web page to image file??

Thanks a lot.

creating window help

ppp0014-Mar-04 10:05

ppp001

4-Mar-04 10:05

Hi all,

How can I program to pop up a WordPad window for showing some formatted text for help purpose
in visual c++ 6 ?

Thanks

Re: creating window help

basementman4-Mar-04 10:09

basementman

4-Mar-04 10:09

ShellExecute or CreateProcess.

onwards and upwards...

Re: creating window help

ppp0014-Mar-04 20:10

ppp001

4-Mar-04 20:10

Thanks for your reply.

If I use createProcess() to launch the MS WordPad, how
can I avoid the problem that there may be differences in the path name of the application in different windows platform ?

Or is there any MFC class that i could use to launch a RTF document ?

Thanks

Re: creating window help

basementman5-Mar-04 3:51

basementman

5-Mar-04 3:51

That's why the recommended way to display a document is to use ShellExecute. ShellExecute will open whatever program is associated with the file extension.

onwards and upwards...

How to have access to the members of a class

Roozbeh694-Mar-04 9:55

Roozbeh69

4-Mar-04 9:55

Hi everybody

I have written an ATL 3.0 project including two sample classes named CAttachment & CAttachments. These classes have interfaces IAttachment & IAttachments in order. IAttachments has got a method named "Item" that returns a result of the type of IAttachment. But before returning the IAttachment, I want to call some member functions of the CAttachment class to setup the IAttachment properly. I know how to create the IAttachment interface, but I don't know how to have access to the members of the CAttachment from the Item method. I will be thankful if anybody replies to me.

Regards,
Roozbeh.

Re: How to have access to the members of a class

ian mariano4-Mar-04 10:53

ian mariano

4-Mar-04 10:53

It's a hack but you could cast your IAttachment interface to CAttachment and call the methods you desire.

CAttachment a = (CAttachment)piAttachment;
 
a->SomeMethodNotExposedInIAttachment();
 
pi->SomeMethodExposedByIAttachment();

Note, this won't work outside your implementation project as outside callers won't have access to the CAttachment class or any of its members not exposed by the IAttachment interface.

Ian Mariano - http://www.ian-space.com/

"We are all wave equations in the information matrix of the universe" - me

Re: How to have access to the members of a class

Steve S4-Mar-04 22:41

Steve S

4-Mar-04 22:41

How is the CAttachments object producing the interface IAttachment to return?
Presumably you must be making a CAttachment object somewhere, or do you have them already created and you're just holding a list of the IAttachment interfaces?

Steve S

How do I compile?

john john mackey4-Mar-04 9:47

john john mackey

4-Mar-04 9:47

Ok, sorry for the simple subject and for possibly this simple question, but here is what I want to do:

How do I compile in VC++ 6.0 using the .NET\Vc7\INCLUDE versions of

\Microsoft Visual Studio\VC98\INCLUDE\xlocale
\Microsoft Visual Studio\VC98\INCLUDE\xlocnum
\Microsoft Visual Studio\VC98\INCLUDE\streambuf
\Microsoft Visual Studio\VC98\INCLUDE\xmemory

(how?)

I want to use the same files, except they are from:
\Microsoft Visual Studio .NET\Vc7\include

I also want to do this in only one project of a multiple project VC++ 6.0 workspace.

Thank you for the help.
Johnny

Re: How do I compile?

ian mariano4-Mar-04 10:56

ian mariano

4-Mar-04 10:56

Just havethe desired path .NET\Vc7\INCLUDE appear before the \Microsoft Visual Studio .NET\Vc7\include in your project "include" directory settings. There's "move up/down functionality in the prop page.

Ian Mariano - http://www.ian-space.com/

"We are all wave equations in the information matrix of the universe" - me

Re: How do I compile?

john john mackey5-Mar-04 8:09

john john mackey

5-Mar-04 8:09

I am compiling in VC++ 6.0, but want to use

C:\Program Files\Microsoft Visual Studio .NET\Vc7\include\xlocale
C:\Program Files\Microsoft Visual Studio .NET\Vc7\include\xlocnum
C:\Program Files\Microsoft Visual Studio .NET\Vc7\include\streambuf
C:\Program Files\Microsoft Visual Studio .NET\Vc7\include\xmemory

When I compile in 6.0, the inclusion of

C:\Program Files\Microsoft Visual Studio .NET\Vc7\include

has no effect.

When I use the Studio IDE or look directly at the .DSP file, i don't see anywere that I can place the Studio.NET-Vc7 version AHEAD OF the 6.0-VC98 version of these files.

Any suggestion?

Thanks.
Johnny

Re: How do I compile?

ian mariano8-Mar-04 12:15

ian mariano

8-Mar-04 12:15

Do this Tools | Options. Find Projects | VC++ Directories. Change the order of the Include Files (select from the combobox at the upper right). Just move the desired directories to the top, even add new ones if you wish Wink | ;)

Ian Mariano - http://www.ian-space.com/

"We are all wave equations in the information matrix of the universe" - me

CPaintDC develish slow

S van Leent4-Mar-04 9:21

S van Leent

4-Mar-04 9:21

Hi all,

I am currently doing a project where I need to be able to have a imaging framework.

Although the framework itself runs pretty smooth, the CPaintDC of MFC kills me.

The SetPixelV is extremely slow, so I want to use another way of doing this.

I know it is possible to create a CDC in memory, but how can I put a bitmap created from this CDC put on the surface a CWnd subclassed control?

Any suggestions?

LPCTSTR Dutch = TEXT("Double Dutch Smile | :)

");

Re: CPaintDC develish slow

basementman4-Mar-04 9:42

basementman

4-Mar-04 9:42

bitblt.

Code snippet to help you (heavily edited and content deleted):

BOOL DoChart(CallContextObj *pCallContextObj)
{
  CDC oMemDC;
  CBitmap *pOldBmp;
  CBitmap oBmp;

  long lWidth = 300;
  long lHeight = 200;
  pCallContextObj->GetParameterValue("ChartWidth",&lWidth);
  pCallContextObj->GetParameterValue("ChartHeight",&lHeight);

  CRect oBmpSize(0,0,lWidth,lHeight);

  oMemDC.CreateCompatibleDC(NULL);
  int iOldMapMode = oMemDC.SetMapMode(MM_TEXT);

  CWindowDC dcScreen(NULL);

  oBmp.CreateCompatibleBitmap(&dcScreen,oBmpSize.Width(), oBmpSize.Height());

  pOldBmp = oMemDC.SelectObject(&oBmp);

  WORD wChartType = 88;
  pCallContextObj->GetParameterValue("ChartType",&wChartType);

  BOOL bRetval = FALSE;
  char caHeaders[512];
  strcpy(caHeaders,"Invalid Chart Type");

  switch (wChartType)
    {
      case 0:
        bRetval = DoLineChart(pCallContextObj,&oMemDC,caHeaders,oBmpSize);
        break;

      case 1:
        bRetval = DoBarChart(FALSE,pCallContextObj,&oMemDC,caHeaders,oBmpSize);
        break;

      case 2:
        bRetval = DoBarChart(TRUE,pCallContextObj,&oMemDC,caHeaders,oBmpSize);
        break;

      case 3:
        bRetval = DoOpenHiLowCloseChart(pCallContextObj,&oMemDC,caHeaders,oBmpSize);
        break;

      case 4:
        bRetval = DoPieChart(pCallContextObj,&oMemDC,caHeaders,oBmpSize);
        break;
    }

  if (bRetval)
    {
      LPSTR cpBuf = pCallContextObj->GetOutputBufferPtr();

      long lQuality = 75;
      pCallContextObj->GetParameterValue("ImageQuality",&lQuality);

      char caContentType[256];

      long lDataSize = WriteImage(oBmp,cpBuf,pCallContextObj->GetOutputBufferSize(),caHeaders,(DWORD)lQuality);
      if (lDataSize > 0)
        {
          pCallContextObj->SuppressHeaders();
          // pCallContextObj->GetMimeType("x.bmp",caContentType);
          pCallContextObj->GetMimeType("x.jpg",caContentType);

          sprintf(caHeaders,"Content-Type: %s%sContent-Length: %d%s%s",caContentType,cpCRLF,lDataSize,cpCRLF,cpCRLF);

          // write out our custom headers
          if (pCallContextObj->ServerSupportFunction(HSE_REQ_SEND_RESPONSE_HEADER,"200 OK",0,(LPDWORD)caHeaders) || ::GetLastError() == 10054)
            pCallContextObj->WriteClient((LPVOID)cpBuf,(LPDWORD)&lDataSize);

          *cpBuf = 0;
        }
      else
        bRetval = FALSE;
    }

  oMemDC.SetMapMode(iOldMapMode);
  oMemDC.SelectObject(pOldBmp);

  oMemDC.DeleteDC();

onwards and upwards...

Re: COM Port Reading

David Crow4-Mar-04 8:56

David Crow

4-Mar-04 8:56

Here is a starting point. Search for serial and/or com in the headings.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: COM Port Reading

dimitar.rosenov4-Mar-04 9:26

dimitar.rosenov

4-Mar-04 9:26

10x very much!

GDI Scale

Hesham Amin4-Mar-04 8:41

Hesham Amin

4-Mar-04 8:41

Hi..
I have problems with makeing a scale in GDI.
What i make is : I draw on a memory DC then BitBlt on a window..
I want to make 2 things :

1-Set the origin of the memory DC to lower left corner instead of upper left.

2-change the scale : for example when i call LineTo(hdc,0,10) it draws 100 PX for example not 10.

after drawing on memory DC I BitBlt on the window that may or may not has its coordinates systems changed.

can this be done using SetViewportExtand SetWindowExt?
thank you in advance

Re: GDI Scale

David Crow4-Mar-04 8:58

David Crow

4-Mar-04 8:58

Will SetViewportOrg() or SetWindowOrg() help?

hspc wrote:
...it draws 100 PX for example not 10.

This sounds like a map mode issue. Check out SetMapMode().

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: GDI Scale

Hesham Amin4-Mar-04 21:44

Hesham Amin

4-Mar-04 21:44

thank you
SetMapMode() is not enough..
using it I can set the mapping mode to MM_ANISOTROPIC but then i must use SetViewportOrg() or SetWindowOrg() to set the scale ..
the question is how ? Confused | :confused:

how do you use the combo box?

catngo4-Mar-04 7:43

catngo

4-Mar-04 7:43

i have insert a combo box with 2 choices. i create a member variable for that combo as VALUE. what is correct way to pickup the data selected?

Re: how do you use the combo box?

Like2Byte4-Mar-04 7:54

Like2Byte

4-Mar-04 7:54

http://www.codeproject.com/combobox/combobox_tut.asp

Stopping devices in Windows 98

stasik garifulin4-Mar-04 6:47

stasik garifulin

4-Mar-04 6:47

Hello!

I have got task to write easy security tool for MS Windows 98. It must deny access to specified local CD-ROM device. I think one of the possible solution is to stop corresponding device driver on demand. So the question is: which win32 functions should i use for enumerating devices and stopping drivers? Or should it be done by other way? Or may be you know the right "search string" for MSDN or Google to find good explanation?
Sorry for my bad English.

Thank you!

Re: Stopping devices in Windows 98

Mazdak4-Mar-04 7:21

Mazdak

4-Mar-04 7:21

stasik garifulin wrote:
should i use for enumerating devices

You can do it with Windows Management Instrumnetation(WMI) classes. Search fot it in MSDN or google.

Mazy

"A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope

TAPI + PARALLEL PORT PROGRAMMING IN VC++ 6.0

Prabha Govind Perumal4-Mar-04 6:23

Prabha Govind Perumal

4-Mar-04 6:23

ayyy,
im doing a device countrol system interfacing telephone...that is user calls....select the device to be activated ....my vc++ program triggeres the givn device connected with my modem to be activated.....but to make this happen we need some functions of TAPI...coud any one help me out with some sample codes or reference....

waiting..
Nick.

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