C / C++ / MFC Discussion Boards

Re: Converting strings using WideCharToMultiByte

DevMentor.org22-Jul-07 19:38

DevMentor.org

22-Jul-07 19:38

if you're using ATL there is a much simpler way!

look for "ATL 7.0 String Conversion Classes and Macros" in msdn

Yours Truly, The One and Only!

how can I launch another application( like notepad.exe ) in my VC

LeeeNN19-Jul-07 7:22

LeeeNN

19-Jul-07 7:22

I want launch another application, like notepad.exe or xxx.bat, in my VC application. I knew there is API can do it. but after searching on Web I could not find it. Please tell me what API is it.

Thank you.
Richard

Re: how can I launch another application( like notepad.exe ) in my VC

Mark Salsbery19-Jul-07 7:27

Mark Salsbery

19-Jul-07 7:27

One way is to use CreateProcess()[^]

Mark

Mark Salsbery
Microsoft MVP - Visual C++

"Thanks,I overlooked the docs."

Re: how can I launch another application( like notepad.exe ) in my VC

mid=574119-Jul-07 7:28

mid=5741

19-Jul-07 7:28

or ShellExecute() or _spawn().

Re: how can I launch another application( like notepad.exe ) in my VC

Mark Salsbery19-Jul-07 7:34

Mark Salsbery

19-Jul-07 7:34

Yeah - I chose the first link I saw that had info on running both exes and batch files Poke tongue | ;-P

Cheers,
MArk

Mark Salsbery
Microsoft MVP - Visual C++

"Thanks,I overlooked the docs."

Re: how can I launch another application( like notepad.exe ) in my VC

Michael Dunn19-Jul-07 7:40

Michael Dunn

19-Jul-07 7:40

See the FAQ
6.4 How do I run another program from my program?[^]

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Re: how can I launch another application( like notepad.exe ) in my VC

LeeeNN19-Jul-07 7:58

LeeeNN

19-Jul-07 7:58

This link is pretty helpful. thank for all your guys' answer. Rose | [Rose]

Re: how can I launch another application( like notepad.exe ) in my VC

Hamid_RT31-Jul-07 9:21

Hamid_RT

31-Jul-07 9:21

Or you can use of WinExec.

WhiteSky

Nibbles, Bits, bytes and somehow a number!

Steven Wybraniec19-Jul-07 6:15

Steven Wybraniec

19-Jul-07 6:15

Can someone please help me solve a problem I have extracting and integer from a serial message?

Some background:
- I am receiving a message from a custom made serial device, this message contains a total of 10 bytes.
- Split accross four of these bytes are two numbers I need to extract.
- The fours bytes in question look like this:

Bit->: 7 6 5 4 3 2 1 0
Byte |
v:
1 0 V6 V5 V4 V3 V2 V1 V0
2 0 0 0 V11 V10 V9 V8 V7
3 0 Z6 Z5 Z4 Z3 Z2 Z1 Z0
4 0 0 0 Z11 Z10 Z9 Z8 Z7

- The bits V0 to V11 contain one number. The bits Z0 to Z11 contain the other.
- I know the following:
- Each number can have a max value of 2047 and a min of -2047
- Bits Z11 and V11 are sign bits.
- The binary numbers are in 2s compliment form.
- Both numbers are split into 3 nibbles; V0 to V3, V4 to V7 and V8 to V11 (the same applies to the Z numbers).

Any help with this problem would be greatly appreciated, TIA.

P.S. I am using Visual C++ .Net so any code you could provide for this language/IDE would be appreciated.

Re: Nibbles, Bits, bytes and somehow a number!

led mike19-Jul-07 6:24

led mike

19-Jul-07 6:24

Steven Wybraniec wrote:
Any help with this problem would be greatly appreciated,

ummm what problem? You never stated what the problem was or are you just asking for someone to do your work for you?

Re: Nibbles, Bits, bytes and somehow a number!

mid=574119-Jul-07 6:35

mid=5741

19-Jul-07 6:35

For your first number (combining Bytes 1 & 2), it would be something like:

int V = ( Byte1 & 0x7f ) | ( ( Byte2 & 0x0f ) << 7 ) | ( ( Byte2 & 0x10 ) << 27 );

For the second number (combining Bytes 3 & 4):

int Z = ( Byte3 & 0x7f ) | ( ( Byte4 & 0x0f ) << 7 ) | ( ( Byte4 & 0x10 ) << 27 );

I'm using the '&' operator to choose specific bits, the '<<' operator to position the bits within an 'int', and the '|' operator to combine the parts.

Desktop Window Manager (DWM) problem..

Perspx19-Jul-07 5:38

Perspx

19-Jul-07 5:38

I am using the Microsoft DWM (Desktop Window Manager), and I am using the DwmEnableBlurBehindWindow() function with the WS_EX_LAYERED style.. however, the window renders fine initially, but then when i move the window, it goes all weird and doesnt display the window properly and just displays the window icon and a garbled up title bar about 50pixels wide and 10pixels high..

heres the code:

---

HRESULT EnableBlurBehindWindow(HWND window,
bool enable = true,
HRGN region = 0,
bool transitionOnMaximized = false)
{
DWM_BLURBEHIND blurBehind = { 0 };

blurBehind.dwFlags = DWM_BB_ENABLE | DWM_BB_TRANSITIONONMAXIMIZED;
blurBehind.fEnable = enable;
blurBehind.fTransitionOnMaximized = transitionOnMaximized;

if (enable && 0 != region)
{
blurBehind.dwFlags |= DWM_BB_BLURREGION;
blurBehind.hRgnBlur = region;
}

return DwmEnableBlurBehindWindow(window,
&blurBehind);
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_INITDIALOG:
{
SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_LAYERED);

EnableBlurBehindWindow(hwnd);

}
break;
case WM_ERASEBKGND:
{
RECT clientRect;

GetClientRect(hwnd, &clientRect);

SelectObject((HDC)wParam, GetStockObject(BLACK_BRUSH));

Rectangle((HDC)wParam, 0, 0, clientRect.right, clientRect.bottom);
}
break;
case WM_CLOSE:
EndDialog(hwnd, 0);
break;
}
return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
DialogBox(hInstance, MAKEINTRESOURCE(IDD_MAIN), NULL, (DLGPROC)WndProc);

return 0;
}

---

Is there any further message processing I need to do or anything..?

Thanks for your help!
--PerspX

"Nowadays, security guys break the Mac every single day. Every single day, they come out with a total exploit, your machine can be taken over totally. I dare anybody to do that once a month on the Windows machine." - Bill Gates

Regular DLL with Doc/View architecture

Andy H19-Jul-07 5:22

Andy H

19-Jul-07 5:22

Is it possible (and if so has anyone got example code of how to go about implementing) to have a document/view architecture SDI within a Regular DLL. I have created a Regular DLL that displays a CDialog but I would prefer if this had a CDocument in it etc...

Re: Regular DLL with Doc/View architecture

led mike19-Jul-07 6:31

led mike

19-Jul-07 6:31

If I remember correctly I did something like that years ago. Vague memory of using or even deriving CSingleDocTemplate and managing it. Perhaps also there is a problem with message routing where you need to step in and give it some help.

Re: Regular DLL with Doc/View architecture

Mark Salsbery19-Jul-07 7:09

Mark Salsbery

19-Jul-07 7:09

See Kinds of DLLs[^]

Mark

Mark Salsbery
Microsoft MVP - Visual C++

"Thanks,I overlooked the docs."

Re: Regular DLL with Doc/View architecture

led mike19-Jul-07 8:25

led mike

19-Jul-07 8:25

Oh that's what he was asking about. D'Oh! | :doh:

Re: Regular DLL with Doc/View architecture

Mark Salsbery19-Jul-07 10:34

Mark Salsbery

19-Jul-07 10:34

How do you know? I don't. Just thought I'd throw that out there. Laugh | :laugh:

Mark Salsbery
Microsoft MVP - Visual C++

"Thanks,I overlooked the docs."

GetOPenFileName()

RomTibi19-Jul-07 5:14

RomTibi

19-Jul-07 5:14

I want to use GetOPenFileName() to allow the user to select one or more files.
I have a problem in the case of multiple selection:

HOW CAN I KNOW THE EXACT NUMBER OF SELECTED FILES?

VC++6 please...

36. When you surround an army, leave an outlet free.
...
Do not press a desperate foe too hard.

SUN-TZU - Art of War

Re: GetOPenFileName()

James R. Twine19-Jul-07 5:18

James R. Twine

19-Jul-07 5:18

   YOU SCAN THE DATA IN THE lpstrFile BUFFER COUNTING NUL CHARACTERS UNTIL THE TERMINATING DOUBLE-NULS THAT INDICATE THE END OF THE LIST.

   Oh, and please DO NOT SHOUT...

   Peace!

-=- James
Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles

Re: GetOPenFileName() [OT]

David Crow19-Jul-07 5:23

David Crow

19-Jul-07 5:23

James R. Twine wrote:
Oh, and please DO NOT SHOUT...

I actually think he was emphasizing rather than shouting.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: GetOPenFileName() [OT]

James R. Twine19-Jul-07 5:29

James R. Twine

19-Jul-07 5:29

Semantics... Smile | :)

Then I was emphasizing as well... Smile | :)

Although you might be right - I am a bit on edge today...

Peace!

Re: GetOPenFileName() [OT]

David Crow19-Jul-07 5:38

David Crow

19-Jul-07 5:38

Some forums don't allow HTML as part of the post so folks get used to capitalizing words or surrounding them with asterisks. He may have just been laying all the prerequisites out at the beginning, and then setting the question apart by capitalizing it.

In any case, I hope your day gets better.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: GetOPenFileName()

RomTibi19-Jul-07 5:48

RomTibi

19-Jul-07 5:48

Thanks! I was thinking to a similar method, but I was expecting a strait method.

Thanks, again Smile | :)

36. When you surround an army, leave an outlet free.
...
Do not press a desperate foe too hard.

SUN-TZU - Art of War

Re: GetOPenFileName()

RomTibi19-Jul-07 5:52

RomTibi

19-Jul-07 5:52

Shouting is about GLOBAL WARMING?

Confused | :confused:

36. When you surround an army, leave an outlet free.
...
Do not press a desperate foe too hard.

SUN-TZU - Art of War

Odd Passwords Questions

Dave Kerr19-Jul-07 4:58

Dave Kerr

19-Jul-07 4:58

Hi all,

I'm not sure if this is the right place to post this question, but I have a problem in C++ app i'm developing. I have developed a little tool that reveals hidden passwords in CEdit (EDIT class) objects, but now I need to extract passwords that have been filled in in web pages in boxes. Does anyone know how to do this? I was hoping that Spy++ would show me that Firefox/Explorer renders these controls by inserting EDIT class objects as windows, but it doesn't seem to do this...

This has been bugging me for ages- any ideas anyone?

Thanks in advance!

Dave Kerr
dopedcoder@googlemail.com
http://www.dopecode.co.uk

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