C / C++ / MFC Discussion Boards

First Prev Next

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 ...

Mixing technologies

pc_dev29-Jul-05 21:22

pc_dev

29-Jul-05 21:22

My question is related to client/server programming;
Can we communicate between client and server which have benn developed using different technologies, e.g. client using a Winsock control and server using CSocket class, or say raw winsock apis, MFC etc.

What about different plateforms

Re: Mixing technologies

Scozturk29-Jul-05 22:40

Scozturk

29-Jul-05 22:40

Normal winsock and raw winsock can work together...
CSocket should work also...

Well... I am a beginner ...

Some problems related to Rich edit and Tree

Aqueel29-Jul-05 21:19

Aqueel

29-Jul-05 21:19

Hello
I have few questions related to MFC.
1. I have added a tree control and a rich edit control in Dialog based application. My aim is that when i click an item in tree control, text is displayed in rich edit control. I have modified the code of NM_CLICK event handler for a tree control. So that when i click an item in tree control, an operation is perfomed. But i have to click that item two or three times to display text in rich edit control where as text should be displayed in rich edit control by clicking item just one time. Can anyone please tell me where i am doing mistake? I have given my code below

void CTreeDlg::OnClickTree(NMHDR* pNMHDR, LRESULT* pResult)
{
CTreeCtrl* pCtrl = (CTreeCtrl*) GetDlgItem(IDC_TREE);
HTREEITEM hCurSel = pCtrl->GetSelectedItem();

if (pCtrl->GetItemText(hCurSel) == "Aqueel") // if i clicked on Aqueel in tree control
{
// displaying contents of a file in rich edit
CFile cFile(TEXT("myfile.rtf"), CFile::modeRead);
EDITSTREAM strm;
strm.dwCookie = (DWORD) &cFile;
strm.pfnCallback = WriteEditData;
m_Info.StreamIn(SF_RTF, strm);
}
*pResult = 0;
}

2. How can i clear the contents of a rich edit control.
3. After i have included a .rtf file as a resourse in my project, how can i display it in rich edit control.

Please help me
Thank you.

Aqueel A. Mirza

We Believe in Excellence

Re: Some problems related to Rich edit and Tree

Anonymous30-Jul-05 4:36

Anonymous

30-Jul-05 4:36

1) Don't handle NM_CLICK. This only works if you select a tree item
with the mouse. If you use the cursor keys to navigate around the tree,
NM_CLICK does not happen. Use
ON_NOTIFY_REFLECT( TVN_SELCHANGING, OnSelectionChanging)
ON_NOTIFY_REFLECT( TVN_SELCHANGED, OnSelectionChanged)

//this routine is called if tree item is selected.
//Set *pResult to 1 to PREVENT this item from being selected
//Set *pResult to 0 to ALLOW this item from being selected
void CMyTreeView::OnSelectionChanging(NMHDR* pNMHDR, LRESULT* pResult){
NM_TREEVIEW* pTreeView = (NM_TREEVIEW*)pNMHDR;
if(OkayToSelectThisTreeItem(pTreeView)){ //insert your own check
*pResult=0; //item will be selected
}
else{
*pResult=1; //item will not be selected
}
}

//This function is called after a tree item is successfully selected.
//It is also called numerous times when tree branch is
//expanded, collapsed, added or deleted,
//which is why deleting a branch is usually so slow.
//Note: unlike OnSelectionChanging, *pResult is NOT used here
void CMyTreeView::OnSelectionChanged(NMHDR* pNMHDR, LRESULT* pResult){
NM_TREEVIEW* pTV = (NM_TREEVIEW*)pNMHDR;
//figure out which RTF to load
//load the RTF into the window
}

To load the RTF from a file, this is easy.
You can make the RTF a new type of resource.
See http://www.codeproject.com/winhelp/myhelpdialog.asp

Re: Some problems related to Rich edit and Tree

Anonymous31-Jul-05 8:03

Anonymous

31-Jul-05 8:03

Thanks. It works perfectly

Dialog Position

khlins29-Jul-05 20:49

khlins

29-Jul-05 20:49

hi,guys,
How to set the initial position of Dialog?
Thanks.

Best Regards,
KHLin

Re: Dialog Position

vishalmore29-Jul-05 21:28

vishalmore

29-Jul-05 21:28

Hi khlins,

In dialog proc use MoveWindow(...) on "WM_INITDIALOG" message.
This would position the dialog box where you wanted.

Have fun !

Cheers,
Vishal

Re: Dialog Position

khlins30-Jul-05 15:50

khlins

30-Jul-05 15:50

Hi, Vishal

I got it.
Thank you very much.

Best Regards,
KHLin

Re: Dialog Position

ThatsAlok30-Jul-05 4:00

ThatsAlok

30-Jul-05 4:00

khlins wrote:
How to set the initial position of Dialog?

In Continuation With Mr. Vishal Smile | :)

,
SetWindowPos(...) api will also help in this case Smile | :)

"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

linker error

sebinfrancis29-Jul-05 20:11

sebinfrancis

29-Jul-05 20:11

Compiling...
MP3PLAYER.cpp
c:\documents and settings\administrator\desktop\sebin\mp3player\mp3playerdlg.h(14) : error C2084: function 'long __stdcall DllGetClassObject(const struct _GUID &,const struct _GUID &,void ** )' already has a body
MP3PLAYERDlg.cpp
c:\documents and settings\administrator\desktop\sebin\mp3player\mp3playerdlg.h(14) : error C2084: function 'long __stdcall DllGetClassObject(const struct _GUID &,const struct _GUID &,void ** )' already has a body
Generating Code...
Error executing cl.exe.

MP3PLAYER.exe - 2 error(s), 0 warning(s)

these are the errors i got when i compiled my project..i am doing a project to create an mp3 player which reads data bit by bit...
for playing i followed the code in the memfile in directx8..then i got some linker errors...
then i write this code at the start of my mfc project...
// DllGetClassObject

extern "C"
STDAPI DllGetClassObject (REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
AFX_MANAGE_STATE (AfxGetStaticModuleState());
return AfxDllGetClassObject (rclsid, riid, ppv);
}
when compiled i got the above said errors...
please help me...i am a beginer in mfc...and vc.... Smile | :)

sebin

Re: linker error

sebinfrancis29-Jul-05 23:04

sebinfrancis

29-Jul-05 23:04

please someone answer me... Cry | :((

sebin

Re: linker error

S. Senthil Kumar29-Jul-05 23:57

S. Senthil Kumar

29-Jul-05 23:57

The compiler is saying that it found the definition of DllGetClassObject in both MP3PLAYER.CPP and MP3PLAYERDlg.cpp. You have included mp3playerdlg.h file in both those files and provided the implementation of DllGetClassObject in mp3playerdlg.h.

You need to have just the declaration in the header file and move the implementation to a cpp file.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Speech SDK

alex__b29-Jul-05 20:03

alex__b

29-Jul-05 20:03

Hello All,
I'm using the Speech SDK inside a COM module thus:

HRESULT hr;<br />
ISpVoice * pVoice = NULL;<br />
......<br />
hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&pVoice);<br />
if(! SUCCEEDED(hr)) MessageBox (NULL, "Cant load Voice",NULL,NULL);<br />
else hr = pVoice->Speak(L"Hello World", SPF_DEFAULT, NULL);<br />
......<br />
pVoice->Release();<br />
pVoice = NULL;

It compiles and - amazingly enough - works ok.
Now, if I change the 2nd parameter in Speak() to SPF_ASYNC or SPF_ASYNC | SPF_PURGEBEFORESPEAK, to call it asynchronously, thre is no sound at all.

Confused | :confused:

Thanks

alex

'Architecture is music frozen in space.'

Re: Speech SDK

Blake Miller1-Aug-05 8:08

Blake Miller

1-Aug-05 8:08

Maybe because you dn't appear to specifically wait for the speech to start or finish, if you go asynchronous you are calling pVoice->Release(); too soon and it never has a chance to get started.

Re: Speech SDK

alex__b1-Aug-05 17:52

alex__b

1-Aug-05 17:52

That's it, thanks.
OTH, I'm trying to 'launch and forget' the TTS, but I have to call Release()before returning from the func, otherwise the speech object will never get destroyed.
All this occurs inside a shell interface, called by Explorer.
Can the speech object be global? (created at _Module.Init() and destroyed at _Module.Term()? I did try it but it caused a GPF.
Ideas anyone?
Thanks.

alex

'Architecture is music frozen in space.'

Re: Speech SDK

Blake Miller2-Aug-05 4:01

Blake Miller

2-Aug-05 4:01

How about you launch a separate EXE and pass it information on what speech to say? Then when the EXE is done, it can exit, or else stay resident and you communicate with it next time.
That would allow your shell interface to 'exit' fairly quickly, and the speech will still be playing in the background.

Re: Speech SDK

alex__b2-Aug-05 4:16

alex__b

2-Aug-05 4:16

Well, it is meant as a shell add-in, so i wouldn't want to complicate things.
Otherwise, i'm not fluent enough in ATL COM but it looks to me like launching a new thread might do the trick ?
The COM module could launch it, and the next time around (when it's called again by Explorer), it could check if the thread is still alive and either kill (Release) it before launching a new one (with a different message) or just wait for it to finish speaking and then..
How do we identify the 'speak' thread from one call to another?
Does it make any sense?

alex

'Architecture is music frozen in space.'

Last Visit: 31-Dec-99 18:00 Last Update: 22-Jun-24 2:40

Refresh

ᐊ Prev 1...11112 11113 11114 111151111611117 11118 11119 11120 11121 Next ᐅ

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.