C / C++ / MFC

Re: Changing the size of the window?

11-Dec-01 5:56

Hi all, I have a small crappy problem. When I load a bitmap I retrieve its width and height, and I want to make the screen view the exact same size. However, I also want to prevent the frame being resized over this size, and so I have managed to implement a system which takes care of it. However, all of the code is situated in the Child Frame class, where the maximum tracking sizes are specified. I then go on to use SetWindowRect(). The problem I get though, is that when using SetWindowRect() the whole width of the window AND frame is set the bitmap dimensions, which means part of the bitmap is obsured by the frame. I have implemented my own offset (to account for the frame), and it works on my computer (or any other with a 19inch monitor), the trouble is I have to demo my app on the computers in Uni, and their monitors are 15inches (and I run XP, they run win2k which means the border sizes are different too), which means the frame will be out of sync with the image (I have tested this). Anyway, how could I get it to set the window and view to the right size? Can I obtain a border offset value? or is there a better way of achieving what I want?

Cheers all,
Alan.

"When I left you I was but the learner, now I am the Master" - Darth Vader Mad | :mad:

NormDroid11-Dec-01 6:05

NormDroid

11-Dec-01 6:05

Try adjust the rectangle using "AdjustWindowRectEx".

Normski. - Professional Windows Programmer

Re: Changing the size of the window?

Chambers12-Dec-01 1:31

Rewind in a serialize process?

12-Dec-01 1:31

Took me a while to get it going, but it worked an absolute treat, thank you for the response Norm.

Much Appreciated,
Alan.

"When I left you I was but the learner, now I am the Master" - Darth Vader Mad | :mad:

listCtrl question

Djibril11-Dec-01 5:54

Djibril

11-Dec-01 5:54

Hello,
I am looking for a listCtrl with editable items and checkBoxes.
Anyone know where I can find it?

Where there is a WISH, there is a WILL.

Re: listCtrl question

Prem Kumar11-Dec-01 6:27

Prem Kumar

11-Dec-01 6:27

Use the extended Styles for List Contorls.

Re: listCtrl question

Michael Dunn11-Dec-01 7:50

Michael Dunn

11-Dec-01 7:50

For editable items, handle LVN_BEGINLABELEDIT. For checks, set the LVS_EX_CHECKBOXES extended list style.

--Mike--
http://home.inreach.com/mdunn/
Help! Help! I'm being repressed!!
Heart | [heart]

your

with

and

Sonork - 100.10414 AcidHelm

José Luis Sogorb11-Dec-01 4:40

11-Dec-01 4:40

When we are extracting data with serialize( ar >> some_variable >> another_one >> etc. ) is it possible to 'rewind' and begin again, for instance, if we don´t find a desired value?

Ravi Bhavnani11-Dec-01 4:45

Ravi Bhavnani

11-Dec-01 4:45

Yes. But you should destruct the file's CArchive before rewinding the CFile, and create a new CArchive after rewinding. This will ensure the archive's data integrity.

"There is always one more bug..."
ravib@ravib.com
http://www.ravib.com

José Luis Sogorb11-Dec-01 6:01

11-Dec-01 6:01

Thanks.
So, how could I do it in this small sample code:

void CMeteoGraficaDoc::Serialize(CArchive& ar)
{
CDocument::Serialize(ar);
if (ar.IsStoring())
{
ar<<datosF.dia<<datosF.mes;
}
else
{
ar>>datosF.dia>>datosF.mes;
// if (datosF.dia != some_value) ...... rewind and begin to serialize.
}
}

Ravi Bhavnani12-Dec-01 1:57

Ravi Bhavnani

12-Dec-01 1:57

Hmmm, I must have been brain dead when I posted my earlier reply. You can rewind the file during serialization.

void CMeteoGraficaDoc::Serialize(CArchive& ar)
{
  CDocument::Serialize(ar);
  if (ar.IsStoring()) { 
    ar<<datosF.dia<<datosF.mes;
  } 
  else {
    ar >> datosF.dia>>datosF.mes;
    if (datosF.dia != some_value) {
       CFile* pFile = ar.GetFile();
       ASSERT (pFile != NULL);
       pFile->SeekToBegin();          // rewind
       ar >> datosF.dia>>datosF.mes;  // retry
    }
  }
}

/ravi

"There is always one more bug..."
http://www.ravib.com
ravib@ravib.com

José Luis Sogorb12-Dec-01 6:09

12-Dec-01 6:09

Ok, thank you so much Wink | ;)

I´ll try it.

José Luis Sogorb13-Dec-01 3:33

13-Dec-01 3:33

I get it working, but I´ve had to add:

CFile* pFile = ar.GetFile();
ASSERT (pFile != NULL);
pFile->SeekToBegin(); // rewind
ar >> datosF.dia>>datosF.mes; // retry
CArchive ar(pFile, CArchive::load); //this one added

Thank you, so much.

Get image into DIB

Jerry Wang11-Dec-01 4:27

Jerry Wang

11-Dec-01 4:27

Hi, Can anyone tell me how I can move an image into DIB? I hard coded my program to display images onto the screen correctly with 32bit/pixel, and now the program doesn't work when the screen is set to another color bit depth.

Chris Becke's GDI tutorial was very helpful and led me to the GetDIBits and SetDIBits functions. I am planning to use GetDIBits(HDC, HBITMAP...) for converting my image to DIB, but I don't know what I should put in for HDC. The only context I can think of is my screenDC, but I doubt it is looking for my screenDC, rather, it's looking for the DC I originate my bitmap from... Is this correct? If so, then how can I create a DC for my image? My image is a string of BYTES with xBGRxBGRxBGRxBGR... where x is an unused byte.

Thanks in advance for the help! Blush | :O

PJ Arends11-Dec-01 9:08

PJ Arends

11-Dec-01 9:08

try:

HBITMAP hDib = (HBITMAP)::CopyImage(bmp, IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG | LR_CREATEDIBSECTION);

'bmp' can be a DIB, DDB or CBitmap, the returned 'hDib' will be a DIB.

---
It may be that your sole purpose in life is simply to serve as a warning to others.

Jerry Wang12-Dec-01 7:56

Jerry Wang

12-Dec-01 7:56

Great! Thanks for the CopyImage tip. I'll give it a try. One more question, how does CopyImage know the bit depth of 'bmp'? Is there a flag in there where I set?

This is how I am creating my bitmap:

<br />
	CClientDC screenDC(pView);<br />
<br />
	bitmapBefore.CreateCompatibleBitmap(&screenDC, sizeBefore.cx, sizeBefore.cy);<br />
	bitmapBefore.SetBitmapBits(sizeBefore.cy*sizeBefore.cx*4, imageBuffer);<br />

where imageBuffer is my Byte string with xBGRxBGRxBGR...

Right now image only displays properly for 32bit/pixel displaying modes, and that's because I'm grabing DC from screen. Since the screen and my image are both 32bit/pixel, the image displays correctly. How do I make the bitmap have the information of 32bit/pixel when my screen DC is not? I have to replace CreateCompatibilityBitmap with something else don't I?

Thanks again! Smile | :)

PJ Arends12-Dec-01 13:16

PJ Arends

12-Dec-01 13:16

Ok, if I understand you correctly, what you have is the dimensions of a bitmap (width and height), and an array of BYTEs specifying the data bits for a 32 bit bitmap, but you do not have the bitmap itself.

You can create the bitmap using the CreateDIBitmap() or CreateDIBSection() functions. The HDC used just has to a HDC compatible with the screen.

HDC DC = ::CreateCompatibleDC(NULL);

BITMAPINFO bmi;
::ZeroMemory(&bmi, sizeof(BITMAPINFO));
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = width;
bmi.bmiHeader.biHeight = height;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitcount = 32;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biSizeImage = width * height * 4;

void *dummy;
HBITMAP hDIB = ::CreateDIBSection(DC, &bmi, DIB_RGB_COLORS, &dummy, NULL, 0);
::SetDIBits(DC, hDIB, 0, height, Pointer_to_Data_Bits_Array, &bmi, DIB_RGB_COLORS);

---
It may be that your sole purpose in life is simply to serve as a warning to others.

How to determine if IIS is installed and version?

13-Dec-01 12:06

Thank you so much PJ for the code. It worked like a charm. I'm able to display images in different bit depths now Smile | :)

Automation in Outlook

JDMoore11-Dec-01 4:13

JDMoore

11-Dec-01 4:13

Hi all,

I recently wrote some code for a company to import contacts into Outlook from an access database. This cannot be done via Import.

My problem is that with the VBA code running at a stupidly slow speed through a macro I decided to use Visual C++ and automate Outlook. It runs much better but I have one problem, how do I add extra user properties to an outlook contact?

The code in VBA is:

Set Prop = c.UserProperties.Add("Yours", olText)

How do you do it in C++ though?
Any help appreciated.

Cheers,
James.

Matt Philmon11-Dec-01 3:52

Matt Philmon

11-Dec-01 3:52

Anyone know hot to check a machine to see if IIS is installed programatically? A CD we're putting together for a customer has several installs on it and so they've requested it have a little pop-up (autorun) with buttons for installing each. Sure, no problem. However, I'd like it to do some of the checking for me as well and recommend things they need to install that I can't package with the CD (like IIS). So, I want to try and determine whether IIS is already installed... Same question for PWS?

Thanks in advance.

Re: Problem solving skill!

Masaaki Onishi11-Dec-01 7:49

Masaaki Onishi

11-Dec-01 7:49

Hello, the codegurus around the world.;)

This job is related to your problem solving skill.
Maybe, we find the answer in MSDN knowledge base soultion.
Otherwise, you may find the answer by yourself.

I guess that IIS and PWS are the system level of application, and
we can't change the installed directory.
Even though we can change the installed directory, we can find the
customized installed directroy in the registry.
So, as far as I am, I try to check the exe file or DLL version of
each IIS or PWS.

But, this is another problem. When I upgrade from NT worksation with PWS to Windows 2000,
I found that PWS and IIS coexists. Dead | X|

Ooops.
In this case, Confused | :confused:

Please, don't send me your email about your questions directly.
Have a nice day!
Sonork - 100.10571:vcdeveloper Wink | ;)

-Masaaki Onishi-

Is there a round function?

Chambers11-Dec-01 3:45

Re: Is there a round function?

11-Dec-01 3:45

Hi all, I want to round a float/double number (to an integer)so that when its less than number.5 it is rounded down and when its greater than or equal to number.5 round up. At the moment I have discovered ceil and floor, but these are no good, as it is an either or solution. VB has a dedicated round function, is there one in VC++?

cheers all
Alan.

"When I left you I was but the learner, now I am the Master" - Darth Vader Mad | :mad:

#realJSOP11-Dec-01 4:06

#realJSOP

11-Dec-01 4:06

Why don't you use sprintf? Here's two functions. One returns an int (after rounding), and the other returns a double after rounding to the nPrecision'th decimal point.

int _rounder(double n)
{
char st[16];
sprintf(st, "%.0lf", n);
return atoi(st);
}

double _rounder(double n, int nPrecision)
{
char st[16];
sprintf(st, "%.*lf", nPrecision, n);
return atof(st);
}

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

Re: Is there a round function?

Alvaro Mendez11-Dec-01 4:09

Alvaro Mendez

11-Dec-01 4:09

As far as I know, there's no "round" function, but here's a modified version of the one I use:

#include < math.h >
 
double round(double dValue, unsigned uDecimalPlaces)
{
	dValue *= dValue;
	dValue += 0.5;
	dValue = floor(dValue);
 
	return (dValue / pow(10.0, uDecimalPlaces));
}

Regards,
Alvaro

Re: Is there a round function?

Chambers11-Dec-01 4:13