GDI+ Image clone - C / C++ / MFC Discussion Boards

Chintoo72330-Jul-05 3:47

30-Jul-05 3:47

I havent got any useful hits from google, does anyone here know how to obtain the string representation of an HKEY? Note that HKEY can be any key and not just the top level keys. Thanks!

Obtaining an Application's Folder

rbrunton30-Jul-05 2:33

rbrunton

30-Jul-05 2:33

I am using MFC and want to know the application folder (typically, but not necessarily "C:\Program Files\MyProgram") so I can read and save an initialization file for the program. A program that uses the main() function, arg[0] is usually the program's command line with subsequent arg[n] being the additional command line parameters. CWinApp does not appear to provide this information and I have looked through the help files and the CodeProject message board without success.

Any help would be greatly appreciated.

TIA

Ron

Re: Obtaining an Application's Folder

Scozturk30-Jul-05 3:06

Scozturk

30-Jul-05 3:06

Well I dont use MFC I only know the API way so:
you can get it like this:

[code]
char path[_MAX_PATH];
GetModuleFileName(GetModuleHandle(NULL), path, _MAX_PATH );
[/code]
Path holds the full address of your exe like "C:\Program Files\Program\test.exe"
just delete text.exe from it and its done...

Well... I am a beginner ...

Re: Obtaining an Application's Folder

Jack Puppy30-Jul-05 3:46

Jack Puppy

30-Jul-05 3:46

You might want to check this article out. (in particular, the last 3/4 topics)

How To Write a Windows XP Application That Stores User and Application Data in the Correct Location by Using Visual C++ .NET

You could run into access problems when users run the app from a limited account in the Program Files\App folder.

Painted on the side of a dog trainer's van: SIT HAPPENS

Re: Obtaining an Application's Folder

ThatsAlok30-Jul-05 3:51

ThatsAlok

30-Jul-05 3:51

Check if this code is of any help :-

//=========================<br />
 // Get Current Path<br />
 //=========================<br />
 CString szCurrentDirectory;<br />
 {<br />
 CString csPath;<br />
  <br />
  //====================<br />
  // Get File Path<br />
  //====================<br />
  <br />
  ::GetModuleFileName(NULL,csPath.GetBuffer(MAX_PATH),MAX_PATH);<br />
  <br />
  csPath.ReleaseBuffer();<br />
<br />
   //====================<br />
   //Get current Directory<br />
   //====================<br />
       szCurrentDirectory=csPath.Left(csPath.ReverseFind('\\'));<br />
<br />
 }

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Obtaining an Application's Folder

rbrunton30-Jul-05 10:42

rbrunton

30-Jul-05 10:42

Thanks to all who responded. Problem solved!
Ron

Disk devices count and NIC card count

pradeepchinnasamy30-Jul-05 2:20

pradeepchinnasamy

30-Jul-05 2:20

:->
I need to Know how many number of disk devices and NIC cards are present in a system (through wmi classes).

how can i access this information.

Pradeep

GDI+ Image clone

Hesham Desouky30-Jul-05 1:52

Hesham Desouky

30-Jul-05 1:52

Hi all
Will I am using GDI+ to manipulate images.
I am having this strange behaviour with Bitmap::Clone() function.

When I create a Clone from an Image object, and then try to LockBits for the cloned image, I get invalid pointer.

I did a workarround for this:

Bitmap* p_new_image = new Bitmap(p_src_image->GetWidth(),p_src_image->GetHeight(),p_src_image->GetPixlFormat());

Graphics* p_graphics = Graphics::FromImage(p_new_image);

p_graphics->DrawImage(p_src_image,0,0);

delete p_graphics;

will this code is working with LockBits very fine.

The documentation for the clone function is not clear, is this a bug in the Clone function, or I didnt understad the Clone function will?

Regards

Hesahm

Hesham

ListView background item color and .exe.manifest file

int01h30-Jul-05 1:28

int01h

30-Jul-05 1:28

Hi guys,
i've implemented an manifest file to my app with following info:

---[cut here]---

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><br />
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"><br />
<assemblyIdentity<br />
    version="1.0.0.0"<br />
    processorArchitecture="X86"<br />
    name="SETUP.EXE"<br />
    type="win32"<br />
/><br />
<description>APPLICATIONNAME</description><br />
<dependency><br />
    <dependentAssembly><br />
        <assemblyIdentity<br />
            type="win32"<br />
            name="Microsoft.Windows.Common-Controls"<br />
            version="6.0.0.0"<br />
            processorArchitecture="X86"<br />
            publicKeyToken="6595b64144ccf1df"<br />
            language="*"<br />
        /><br />
    </dependentAssembly><br />
</dependency><br />
</assembly>

Since then, my listview doesn't accept item background colours i apply using:

if(lplvcd->nmcd.lItemlParam==1){  //obserwowane<br />
       lplvcd->clrText   = RGB(0,0,0);<br />
       lplvcd->clrTextBk = RGB(240,240,255);<br />
        }<br />

When i remove manifest, all looks okay, but when i apply it again - colours are missing.

Any idea ?

Regards,Paul.

Source Control (SCC) Icons on VC++ 6.0

Axter30-Jul-05 1:26

Axter

30-Jul-05 1:26

I have both VC++ 6.0 and VC++ 7.1, and I notice that my 7.1 version has icons for source control that indicates when a file is locked by another user VS locked by the current user.
Where as VC++ 6.0 only has an icon showing it's locked.
See following screen shot:
http://code.axter.com/SCC_for_vc71_and_vc60.JPG

I'm developing an SCC AddOn for VC++, and I want to know if there is any way of adding the blue lock icon to VC++ 6.0, and if so, how.

I tried using Spy++ to find the tree window handle, but didn't have much luck.

I appreciate any leads to help solve this.

Thanks

Top ten member of C++ Expert Exchange.
http://www.experts-exchange.com/Cplusplus

please help me

sebinfrancis30-Jul-05 1:00

sebinfrancis

30-Jul-05 1:00

ompiling...
MP3PLAYERDlg.cpp
Linking...
MP3PLAYERDlg.obj : error LNK2001: unresolved external symbol "public: class CBasePin * __thiscall CAsyncReader::GetPin(int)" (?GetPin@CAsyncReader@@QAEPAVCBasePin@@H@Z)
MP3PLAYERDlg.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall CAsyncReader::GetPinCount(void)" (?GetPinCount@CAsyncReader@@UAEHXZ)
MP3PLAYERDlg.obj : error LNK2001: unresolved external symbol "public: virtual unsigned long __stdcall CBaseFilter::NonDelegatingRelease(void)" (?NonDelegatingRelease@CBaseFilter@@UAGKXZ)
MP3PLAYERDlg.obj : error LNK2001: unresolved external symbol "public: virtual __thiscall CAsyncReader::~CAsyncReader(void)" (??1CAsyncReader@@UAE@XZ)
MP3PLAYERDlg.obj : error LNK2001: unresolved external symbol "public: __thiscall CAsyncReader::CAsyncReader(char *,struct IUnknown *,class CAsyncStream *,long *)" (??0CAsyncReader@@QAE@PADPAUIUnknown@@PAVCAsyncStream@@PAJ@Z)
strmbasd.lib(dllsetup.obj) : error LNK2001: unresolved external symbol "class CFactoryTemplate * g_Templates" (?g_Templates@@3PAVCFactoryTemplate@@A)
strmbasd.lib(dllentry.obj) : error LNK2001: unresolved external symbol "class CFactoryTemplate * g_Templates" (?g_Templates@@3PAVCFactoryTemplate@@A)
strmbasd.lib(dllsetup.obj) : error LNK2001: unresolved external symbol "int g_cTemplates" (?g_cTemplates@@3HA)
strmbasd.lib(dllentry.obj) : error LNK2001: unresolved external symbol "int g_cTemplates" (?g_cTemplates@@3HA)
Debug/MP3PLAYER.exe : fatal error LNK1120: 7 unresolved externals
Error executing link.exe.

MP3PLAYER.exe - 10 error(s), 0 warning(s)
these are the errors i have got when i tried to execute my project....i am doing a project to create an mp3 player
which reads the file bit by bit.....
i am beginneer...i know little about vc++.
so give me a detailed description....
included libraries are strmbasd.lib Vfw32.lib winmm.lib ....
i am using the memfile in directx8 to read data bit by bit..

please give me a solution... if any explanation needed please ask me... Sigh | :sigh:

sebin

Re: please help me

toxcct30-Jul-05 3:26

toxcct

30-Jul-05 3:26

sebinfrancis wrote:
these are the errors i have got when i tried to execute my project

wrong. these error happened when trying to link the compiled object files of your project.

sebinfrancis wrote:
so give me a detailed description....

select one error in the output window where you quoted this, and puch F1... msdn exist for that...

ok, now, what does the error say ?
let's take the first one :

MP3PLAYERDlg.obj : 
     error LNK2001: 
     unresolved external symbol "public: class CBasePin * __thiscall CAsyncReader::GetPin(int)"

the linker says that there is a call to the member function CAsyncReader::GetPin(int) into MP3PlayerDlg.obj (see the corresponding .cpp file), but it doesn't know such a function...
and all the errors you get are of this style...

so, did you well #include the headers ?

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Reliable date and time of Windows startup

johannks30-Jul-05 0:11

johannks

30-Jul-05 0:11

Hi there

I need to find a way to reliably detect the date and time of the last startup/reboot of Windows.

I have found some information that could be used on Win95, Win98, and WinME platforms (checking the date and time of the registry backup files c:\windows\system.da0 and c:\windows\user.da0, or the last accessed time of autoexec.bat).

Is there a similar method that works on all versions of Windows? If not, is there a similar method on WinNT, Win2k, and WinXP?

Cheers,
Johan

Re: Reliable date and time of Windows startup

Garth J Lancaster30-Jul-05 1:39

Garth J Lancaster

30-Jul-05 1:39

Johan - I'm pretty sure for WinNT, Win2k, WinXP you can query a PDH (Performance Data Helper) Value called 'System Up Time', but I dont have any code here to prove it

Garth

Reply # 2

Garth J Lancaster30-Jul-05 1:50

Garth J Lancaster

30-Jul-05 1:50

This may help - the author queries the value in his code

http://www.codeproject.com/w2k/winuptime.asp[^]

'G'

Re: Reliable date and time of Windows startup

pradeepchinnasamy30-Jul-05 2:09

pradeepchinnasamy

30-Jul-05 2:09

Yes there is a gettickcount() function to calculate the uptime
i think it will return the values in seconds. you can calculate it
accordingly.

any further details refer WMI classes in msdn

Pradeep

Re: Reliable date and time of Windows startup

User 1278230-Jul-05 12:36

User 12782

30-Jul-05 12:36

Milliseconds actually.

This will be the simplist, most universal approach, though the DWORD counter will rollover every 49.7 days, so you'll have to take that into account.

modified 12-Jul-20 21:01pm.

Re: Reliable date and time of Windows startup

Alexander ^M.,1-Aug-05 1:21

Alexander ^M.,

1-Aug-05 1:21

QueryPerformanceCounter and QueryPerformanceFrequency will help. They have a roll-over that is much much more than 49 days.

Don't try it, just do it! Wink | ;-)

Re: Reliable date and time of Windows startup

johannks2-Aug-05 19:35

johannks

2-Aug-05 19:35

Thank you everyone for your kind responses

You do however not answer my question, I want to detect the date and time of the last startup/reboot, not the time elapsed since then.

Maybe I should have been a bit more informative, I am adding this code as part of a software protection system, and I want to find a way to detect of the system time has been changed to a valid day within their evaluation period.

On the old Win architecture, this works perfectly by checking the files mentioned above. But how can this be achieved on the NT platform?

/Johan

Unicode class

ThaSaVa29-Jul-05 23:57

ThaSaVa

29-Jul-05 23:57

I need to write a class which manipulates char in Unicode form.
So i need materials related to implementation techniques for unicode using c++ class..

thanx in advance

Re: Unicode class

Jack Puppy30-Jul-05 1:08

Jack Puppy

30-Jul-05 1:08

How about using std::wstring instead?

Painted on the side of a dog trainer's van: SIT HAPPENS

Re: Unicode class

ThaSaVa1-Aug-05 1:09

ThaSaVa

1-Aug-05 1:09

No NO my question is
i need to write a class which deals with unicode...

If i store a particular char in the class, using some functions i should be
able to say its catagoreis.............

there are nearly 30-40 catagories....

so i need to catagory the char which is stored in my class...?

any guess? Frown | :(

detecting the input from a receiver

Nilegna29-Jul-05 22:56

Nilegna

29-Jul-05 22:56

hi,
i'm doing a project where i hav a transmitter in a place n a receiver connected to the soundcard of the system.now my reciver is one which always does hav noise n whenever i click on a button in the transmitter i can transmit the signal.now the problem is my pgm has to detect when the transmitter is switched on n when it is off so tht it can record the voice.i'm struck.plzz help.imp as i'll hav to submit it sonn.
thnx.

aania

MSHTML Editing problem

Scozturk29-Jul-05 22:37

Scozturk

29-Jul-05 22:37

Hello...
I am trying to make a WYSIWYG editor and for that I am using the MSHTML control (in a win32 application).
Well it works fine you can set properties of the text with the build in functions...
Than I get a text range (with IHTMLTxtRange) (i can get the text range with no problem) and modify it using pasteHTML (i am doing that to apply font properties...) (i can do what I want but maybe there is some problem here).
Well after that I cannot change anything with the built in functions... But my functions continue working...
I am thinking about the selection range... Do I have to select the whole document and out it in a range in order to edit it with the built in functions?
What may be the problem?
Thank you very much in advance for your answers...

Well... I am a beginner ...

Re: MSHTML Editing problem

Scozturk30-Jul-05 4:08

Scozturk

30-Jul-05 4:08

Problem solved...

Well... I am a beginner ...

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