Simple PNG loading... - C / C++ / MFC Discussion Boards

Irek Zielinski5-Sep-04 10:27

5-Sep-04 10:27

Thanks Michael - that solved the problem. I wonder why it's not mentioned even a single time in MSDN...

Very best regards!
Irek

Check out my software at: http://www.ireksoftware.com

CDC GetWindowExt WinXP->Win98

FriendOfAsherah4-Sep-04 3:47

FriendOfAsherah

4-Sep-04 3:47

Hi GURUS
Ive transfered a program from WinXP back to Win98 (VC++6,MFC)
Trying to print on the same printer I get following problem:
Code:
m_PrintDC.SetMapMode( MM_HIMETRIC );
CSize winsize = m_PrintDC.GetWindowExt();

In WinXP I get the correct size of the window in HiMetric
(about 20100x27000) but in Win98 I always get 2450 x 2450 !!
I also cannot change (SetWindowExt, SetViewportExt ) to anything.
Calling m_PrinterDC.GetMapMode() results in MM_HIMETRIC !
The GetDeviceCaps(HORZSIZE)... works fine !.
But calling LineTo() with values in the range of the devicecaps is outside WindowExt/Org so it doesnt work -
Where does this difference come from ? Is there any default in XP which I have to Set for Windows 98. (another mapping mode ?)..
pls help, -> thx !

opening a wav file in programming visual c++

sysrye4-Sep-04 3:26

sysrye

4-Sep-04 3:26

i want to open a wav file and get the file from my drive c harddisk. what commands should be used to get the wav file??Thanks i really badly needed the commands.Thanksss!!!Help me out Smile | :)

Re: opening a wav file in programming visual c++

Joel Holdsworth4-Sep-04 5:34

Joel Holdsworth

4-Sep-04 5:34

http://www.wotsit.org/search.asp?page=8&s=music[^] <- This site should give you some help with that. It should give you the format of the data to read. Be careful when loading the sound data, as it could take up a lot of memory.

Joel Holdsworth

Re: opening a wav file in programming visual c++

Anonymous4-Sep-04 14:29

Anonymous

4-Sep-04 14:29

thanks a lot man!!! Smile | :)

Mapping COM port ????

zahid_ash4-Sep-04 2:38

zahid_ash

4-Sep-04 2:38

HI ,

I know the IP adress of other System. and it COM port name COM1.

I want to mapp it virtualy on my system.

How can i do it.
any sample

thanx

Regards.

About Windows Services

zahid_ash4-Sep-04 2:34

zahid_ash

4-Sep-04 2:34

HI,

As i know we can write Windows services for Windows 2000 and Windows XP .

Can we write them for Windows 98.
if yes , is it done in same way as for 2000 and XP.

or any change

thanx

Regards.

Simple PNG loading...

Joel Holdsworth4-Sep-04 2:17

Joel Holdsworth

4-Sep-04 2:17

I need a really Easy, Compatible and preferably Lightweight way to load PNG files to a DIB. I also need the alpha channel to be read correctly. So far I've looked at CxImage (rather heavyweight, and discontinued by David Pizzolero), libpng (very difficult to compile or link in MSVC7) and http://www.codeproject.com/bitmap/graphicsuite.asp[^] (but this requires a recent version of IE). Does anyone have any suggestions?

Joel Holdsworth

Re: Simple PNG loading...

C^hris L^osinger4-Sep-04 13:18

C^hris L^osinger

4-Sep-04 13:18

if you'll allow me a blatant advertisement, i can recommend my company's own library, ImgSource. it does tons more than just loading PNGs, but the linker will ensure that only the parts you use will get used, so you won't get penalized if you don't use it all. PNG support should add about 100K to your app.

here's a sample:

<br />
// three lines to get a PNG into a DIB<br />
HISSRC hSrc = IS3OpenFileSource(filename);<br />
HGLOBAL hDIB = IS3ReadImageToDIB(hSrc,...);<br />
IS3CloseSource(hSrc);<br />
<br />
BITMAPINFOHEADER *pDIB = (BITMAPINFOHEADER *)hDIB;<br />
<br />
...<br />
<br />
// delete it when you're done.<br />
GlobalFree(hDIB);<br />

-c

Software | Cleek

Re: Simple PNG loading...

Joel Holdsworth5-Sep-04 3:52

Joel Holdsworth

5-Sep-04 3:52

Wow thanks! That could well be my solution Smile | :)

Joel Holdsworth

visual c++, pocket pc, xml and Python

ajaybrar4-Sep-04 1:06

ajaybrar

4-Sep-04 1:06

has anyone done work in this direction?
you can call c/c++ code from python and there is a version of python for pocket pc.
and i have written a few simple dll's that work from python on pocket pc
the problem is in xml processing - i tried the code at http://www.codeproject.com/soap/ce_xml.asp but as soon as i put the Python wrappers around it and point to the Python include files, i get errors
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5395) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'const unsigned short *' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5396) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'unsigned short [4]' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5404) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'unsigned short [100]' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5413) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'unsigned short [12]' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5414) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'unsigned short [100]' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5417) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'unsigned short *' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5420) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'unsigned short [10]' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
C:\Windows CE Tools\wce300\Pocket PC 2002\atl\include\atlbase.h(5421) : error C2664: '__WinCE_OutputDebugStringA' : cannot convert parameter 1 from 'unsigned short [2]' to 'const char *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
stl_eVC\wce_defs.h(47) : warning C4005: 'assert' : macro redefinition
C:\hons\pocketpc\python_ce_build\Python-2.3.4\PC\WinCE\assert.h(7) : see previous definition of 'assert'

any ideas why or how to get around it.

cheers

Re: visual c++, pocket pc, xml and Python

Gary R. Wheeler4-Sep-04 2:30

Gary R. Wheeler

4-Sep-04 2:30

It looks like you need to set things to compile for UNICODE rather than ANSI.

Software Zen: delete this;

Re: visual c++, pocket pc, xml and Python

ajaybrar4-Sep-04 2:42

ajaybrar

4-Sep-04 2:42

umm and how do i set that?

thanks

Re: visual c++, pocket pc, xml and Python

Gary R. Wheeler4-Sep-04 8:48

Gary R. Wheeler

4-Sep-04 8:48

I usually place something like the following lines in my stdafx.h file, before any other definitions or #include's:

#undef  _MBCS
#define UNICODE
#define _UNICODE
#if (!defined(_WINDLL))
    #pragma comment(linker,"/entry:\"wWinMainCRTStartup\"")
#endif

The #pragma sets the entry point for the application to the UNICODE entry point for the runtime library startup code.

Software Zen: delete this;

Re: visual c++, pocket pc, xml and Python

ajaybrar4-Sep-04 15:29

ajaybrar

4-Sep-04 15:29

hi!

that didn't work. i actually got a few more warning messages -
C:\hons\pocketpc\ce_xml_src\StdAfx.h(2) : warning C4005: 'UNICODE' : macro redefinition
unknown(0) : see previous definition of 'UNICODE'
C:\hons\pocketpc\ce_xml_src\StdAfx.h(3) : warning C4005: '_UNICODE' : macro redefinition
unknown(0) : see previous definition of '_UNICODE'

thanks

cheers

To be notify when a port(tcp/udp) is being opened...

ZarrinPour4-Sep-04 0:43

ZarrinPour

4-Sep-04 0:43

Hi all,
I'm looking for a way to be notify "upon" a port(tcp/udp) on my system is being opend like all Firewall softwares.in the other word is there any EVENT or somethings like this to use for this purpose.? By the way how can i get the port number and name of app that have opened this port.
Any help appreciated.

With Best Regards.

Multicolor CEdit ??

pma4-Sep-04 0:00

pma

4-Sep-04 0:00

is it possible to have multible colors for one string in a CEdit box

Re: Multicolor CEdit ??

Maximilien4-Sep-04 2:53

Maximilien

4-Sep-04 2:53

no, you need to use a CRichEditCtrl.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Multicolor CEdit ??

David Salter4-Sep-04 5:17

David Salter

4-Sep-04 5:17

Or you could do it with an Owner Drawn Edit Control.

store your internet favourites online - www.my-faves.co.uk

Re: Multicolor CEdit ??

Maximilien4-Sep-04 5:35

Maximilien

4-Sep-04 5:35

is it that easy to do ? me think you need to handle more than the OnPaint ?!

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Multicolor CEdit ??

David Salter4-Sep-04 5:42

David Salter

4-Sep-04 5:42

You need to handle a little more than OnPaint, but not much.

Have a look at

http://www.codeproject.com/editctrl/

theres plenty of examples there of what you can do.

store your internet favourites online - www.my-faves.co.uk

udb brodcast

pma3-Sep-04 23:40

pma

3-Sep-04 23:40

I'd like to have a application that is both server and client,
if the application starts, it checks if another instance of this
application is running on another server on the same LAN, if so
it should send back some indification message.

So I suppose I've to send a udb-broadcast with the server-part of
the application, the other instance receives this braodcast with
it's own server part and send's back a message to the other instance
with the client part.

Maybe someone can give a link to a source code sample Confused | :confused:

Thank you
Mario

Exchanging rows in CListCtrl

IQ03-Sep-04 22:36

IQ0

3-Sep-04 22:36

Hello !

I want to exchange 2 rows of data between them in a CListCtrl

What is the simplest and fastest way to do this ?

thank you

Re: Exchanging rows in CListCtrl

David Crow4-Sep-04 17:18

David Crow

4-Sep-04 17:18

To exchange items 3 and 4, simply get item 3's attributes (e.g., subitem values, pointer data), remove item 3 (which would make item 4 the new item 3) and add it back as item 4. Make sense?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

DXSDK 9 (Summer2004) and Visual C++ 6 issue

tareqsiraj3-Sep-04 22:24

tareqsiraj

3-Sep-04 22:24

Hi all ... I've just downloaded the updated DirectX 9 SDK and now I cant compile the samples (capturesound) with my Visual C++ 6. I have the Platform SDK 2003 Feb installed and the problem is, it askes for UNICODE build. If i define UNICODE in the project settings, it gives another error: "__noop not defined". From MSDN, I found out __noop is a microsoft specific C++ intrinsic and my guess is, its not implemented in VC6 compiler. Is there any workaround to this problem for Visual C++ 6? Thanks in advance.

-Tareq

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