C / C++ / MFC Discussion Boards

Mike Dimmick26-Mar-04 6:19

26-Mar-04 6:19

You can adjust the numbers in the Visual C++ resource editor by going to properties, then putting '=x' after the name, where x is the number you want it to have (e.g. 'IDC_EDIT10=1000', without the quotes).

Stability. What an interesting concept. -- Chris Maunder

Re: IDC_EDITn

Prakash Nadar26-Mar-04 14:38

Prakash Nadar

26-Mar-04 14:38

No better solution I believe... This one problem you need to avoid when using group radiobuttons.

MSN Messenger.
prakashnadar@msn.com

Tip of the day of visual C++ IDE.
"We use it before you do! Visual C++ was developed using Visual C++"

External Dependencies - Standalone DLL

BlackDice26-Mar-04 2:51

BlackDice

26-Mar-04 2:51

I have a DLL that I've made that doesn't work on other computers, saying from the VB application 'Run-time error 53: Export.dll not found'. I was told by someone yesterday that the other computer probably wasn't finding the external dependencies. So, even though the header files are included through #include directives and the paths to these files are added in my project settings, should I actually add these files to the project to make sure that my dll is standalone?

If it's broken, I probably did it

bdiamond

Re: External Dependencies - Standalone DLL

Antony M Kancidrowski26-Mar-04 3:58

Antony M Kancidrowski

26-Mar-04 3:58

If indeed it is the case that other dependancies are required you will have to ship those DLLs with your application.

In order to find which DLLs you need, open "depends" and open your DLL into it. The tree will show all other DLLs on the system that your DLL depends on.

From that list you can determine which one(s) are missing on the other system.

Ant.

Re: External Dependencies - Standalone DLL

BlackDice26-Mar-04 4:05

BlackDice

26-Mar-04 4:05

I kinda figured that, and I've used the dependency walker before, but what I'm trying to find out is if I go to the menu and click Project->Add to Project->Files... and actually make them a part of the project, will I still need to ship those files? Thanks for your help and patience with my idiocy

Roll eyes | :rolleyes:

If it's broken, I probably did it

bdiamond

Re: External Dependencies - Standalone DLL

Antony M Kancidrowski26-Mar-04 9:44

Antony M Kancidrowski

26-Mar-04 9:44

Unless you can find static lib versions of the DLLs then adding then you will need to ship the additional DLLs.

Ant.

Re: External Dependencies - Standalone DLL

BlackDice26-Mar-04 10:42

BlackDice

26-Mar-04 10:42

alright, thanks!

If it's broken, I probably did it

bdiamond

Type Conversion ?

Manikandan26-Mar-04 2:25

Manikandan

26-Mar-04 2:25

Hi,

This snippet in my program...

USES_CONVERSION;
LPCTSTR lpSource = _T("123456");
char szSource[10];
strncpy(szSource,W2A(lpSource),MAX_PATH);
TRACE("%c",szSource[0]);

When I do unicode build TRACE throws error C2664: 'AfxTrace' : cannot convert parameter 1 from 'char [3]' to 'const unsigned short *'

Help me to solve this...

Roll eyes | :rolleyes:

Re: Type Conversion ?

Roger Allen26-Mar-04 2:52

Roger Allen

26-Mar-04 2:52

Your application is UNICODE, you passed an ANSI string to the TRACE call. Do:

TRACE(L"%c", ...);

or

TRACE(_T("%c"), ...);

Roger Allen - Sonork 100.10016
Strong Sad:
Clever I am? Next to no one.
Undiscovered and soggy.
Look up. Look down. They're around.
Probably laughing. Still, bright, watery.
Listed among the top. Ten.
Nine. Late night. Early morn.
Early mourn. Now I sleep.

Re: Type Conversion ?

Manikandan26-Mar-04 3:35

Manikandan

26-Mar-04 3:35

Yep... it works...

In the following...

char str[][7] = {"123456",
"789012",
};
lstrlen(str[0]);

under unicode build throws error C2664: 'lstrlenW' : cannot convert parameter 1 from 'char [7]' to 'const unsigned short *'

How to handle this?
Roll eyes | :rolleyes:

Re: Type Conversion ?

Manikandan26-Mar-04 3:45

Manikandan

26-Mar-04 3:45

Yep... I found it...its

char str[][7] = {"123456",
"789012",
};
USES_CONVERSION;
int val = lstrlen(A2W(str[0]));
Smile | :)

Re: Type Conversion ?

Michael Dunn26-Mar-04 4:14

Michael Dunn

26-Mar-04 4:14

Manikandan wrote:
char szSource[10];
strncpy(szSource,W2A(lpSource),MAX_PATH);

You've got a buffer overrun bug waiting to happen there. You have a 10-char array but you're telling strncpy that you have MAX_PATH chars available, which is 260.

--Mike--
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-- Paul Watson, Linux Zombie

>> operator

monrobot1326-Mar-04 2:00

monrobot13

26-Mar-04 2:00

Could someone explain why

m_ifField.nMask >> 1;

would produce a warning saying "warning C4552: '>>' : operator has no effect; expected operator with side-effect". Shouldn't that code shift the bits in nMask to the right by one position? The nMask value is defined as a UINT.

- Aaron

Re: >> operator

Rohde26-Mar-04 2:14

Rohde

26-Mar-04 2:14

You probably mean m_itField.nMask >>= 1;

Re: >> operator

monrobot1326-Mar-04 2:33

monrobot13

26-Mar-04 2:33

I thought about that (and it does get rid of the warning), but in the MSDN documentation is has this little snippet

// Example of the bitwise right shift operator
int nNumA=8;    // beginning value is 8

nNumA >> 2;     // ending value is 2

I figured that using >> would work on the actual bits of the left hand operand and there wouldn't be a need for assignment. If that's not the case any ideas when you would actually use >>? Thanks.

- Aaron

Re: >> operator

David Crow26-Mar-04 2:42

David Crow

26-Mar-04 2:42

monrobot13 wrote:
...any ideas when you would actually use >>?

Well, it would be legal in the following case:

if (nNumA >> 2)
    ...

This would shift the bits to the right 2 places and if the result was a non-zero value, it would do the ... stuff.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: >> operator

David Crow26-Mar-04 2:38

David Crow

26-Mar-04 2:38

For the same reason that none of these do either:

m_ifField.nMask & 1;
m_ifField.nMask ^ 1;
m_ifField.nMask | 1;
m_ifField.nMask ~ 1;

Unless the result of these operations is assigned to a variable, the net result is they do nothing.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: >> operator

monrobot1326-Mar-04 3:00

monrobot13

26-Mar-04 3:00

Makes sense. Guess I just misunderstood the documentation. Thanks for the clarification.

- Aaron

Printing an icon....

Neha26-Mar-04 1:40

Neha

26-Mar-04 1:40

Hi,

How can I print the icon?
DrawIcon()doesn't work with printer dc...

Regards
Neha

Re: Printing an icon....

Manikandan26-Mar-04 1:46

Manikandan

26-Mar-04 1:46

u can find nice stuff under bitmaps & palettes section...my favorite is Davide Pizzolato...

Re: Printing an icon....

Roger Allen26-Mar-04 1:58

Roger Allen

26-Mar-04 1:58

THis is the way I do it:

// now render the icon
int xSize = (pDC->GetDeviceCaps(LOGPIXELSX) * 16) / 96;          // a screen display gives us 96dpi, scale the same for device(s)
int ySize = (pDC->GetDeviceCaps(LOGPIXELSY) * 16) / 96;
::DrawIconEx(pDC->m_hDC, x - (xSize / 2), y - (ySize / 2), m_pTemplate->GetIcon(), xSize, ySize, 0, NULL, DI_IMAGE | DI_MASK);

This will scale correctly for a preview and a print. although I have seen problems on some printers etc which do not use the mask correctly Frown | :(

Roger Allen - Sonork 100.10016
Strong Sad:
Clever I am? Next to no one.
Undiscovered and soggy.
Look up. Look down. They're around.
Probably laughing. Still, bright, watery.
Listed among the top. Ten.
Nine. Late night. Early morn.
Early mourn. Now I sleep.

CStringArray

si_6926-Mar-04 0:35

si_69

26-Mar-04 0:35

Hi All

i have a CStringArray, which i had added 1500 items to
how can i loop through my array, retirving each individual item

please help, im being a bit thick today

ta

simon

Re: CStringArray

si_6926-Mar-04 0:48

si_69

26-Mar-04 0:48

durrr

i said i was being a bit thick

for (int i = 0; i <= arr.GetUpperBound(); i++)
{
CString id= arr[i];

}

simon

Re: CStringArray

aswdwdwd26-Mar-04 1:11

aswdwdwd

26-Mar-04 1:11

for (int i = 0; i < cstra.GetSize(); i++)
{
CString s = cstra[i];
CString ss = cstra.GetAt(i);
}

Multithreading

SatyaDY25-Mar-04 23:39

SatyaDY

25-Mar-04 23:39

Hi,
How to debug an application which is having multiple threads on windows paltform ?? Anybody got some clues??
Thx & Reg,
Satya

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