C / C++ / MFC

18-Apr-06 10:28

Hi,

I am using LoadProfileSettings(5) in InitInstance to open
the 5 most recently used files when my application is loaded
and AddToRecentFilename(szLoadFilename) to update the MRU list
with the last file loaded.

It all works fine except it abbreviates the full file path
e.g. c:\my documents\my long directory\my file.doc becomes c:\my documents\...my file.doc

Is there a way please of preventing it from abbreviating the full file path so I
get c:\my documents\my long directory\my file.doc instead of
c:\my documents\...my file.doc

Thanks,
Daniel

David Crow18-Apr-06 10:32

David Crow

18-Apr-06 10:32

daniel madden wrote:
It all works fine except it abbreviates the full file path
e.g. c:\my documents\my long directory\my file.doc becomes c:\my documents\...my file.doc

Where is this abbreviated path shown?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

daniel madden18-Apr-06 22:12

18-Apr-06 22:12

Hi David,

c:\my documents\my long directory\my file.doc was a simple example that gets an abreviated path of
c:\my documents\...my file.doc. Thererefore c:\my documents\... is the abbreviated path of c:\my documents\my long directory\.

Daniel

David Crow19-Apr-06 2:29

David Crow

19-Apr-06 2:29

I understood all that. My question was where is this path shown?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

daniel madden19-Apr-06 2:40

19-Apr-06 2:40

Ok - sorry the path is shown at the bottom of the File Menu where it usually shows the most recently used files.

Iain Clarke, Warrior Programmer

Iain Clarke, Warrior Programmer18-Apr-06 10:45

18-Apr-06 10:45

It does that so you don't end up with menus across the screen.

To override this you'll need to search for OnInitMenu in the MFC sources. Good luck, it gets quite knotty down there...

Iain.

daniel madden19-Apr-06 1:40

Iain Clarke, Warrior Programmer

19-Apr-06 1:40

thanks for the suggestion Iain. It does indeed get quite knotty down there.

For now, I have a simple workaround of setting the CRecentFileList's member variable m_nMaxDisplayLength to show longer length filenames and paths,

Cheers,
Daniel

LPWS to std::string

big_denny_20018-Apr-06 9:32

big_denny_200

18-Apr-06 9:32

hi all

I have a LPWSTR variable and want to copy it's contents to std::string variable is it possible?

if yes how ?

thanks.

-- modified at 15:32 Tuesday 18th April, 2006

Re: LPWS to std::string

Iain Clarke, Warrior Programmer18-Apr-06 10:15

18-Apr-06 10:15

As I remember, std:string is for char *s, so you need to convert from unicode.

std::string Conv (LPWSTR szWide)
{
    USES_CONVERSION;
    std::string s;
    s = W2A(szWide);
    return s;
}

or use std::wstring instead. unicode has its place!

Iain.

Re: LPWS to std::string

Mila02519-Apr-06 1:18

Mila025

19-Apr-06 1:18

one line way:

WideCharToMultiByte( CP_ACP, 0, lpWideCharStr, -1, (LPSTR) sShare.c_str(), BUFFER_SIZE, NULL, NULL );

-----------
Mila

Exit when press "Enter" ?

Surivevoli18-Apr-06 9:06

Surivevoli

18-Apr-06 9:06

I have a Application in form "Dialog".
on that there are some control like :
"Static", "Edit", "Rich Edit"...
When i click left mouse on that, then press return
("Enter" key on keyboard) and the Application disappear
as if i click "Close".
What's happened ?
Why ???
Could you help me ???

Re: Exit when press "Enter" ?

Rage18-Apr-06 9:11

Re: Exit when press "Enter" ?

18-Apr-06 9:11

See this post[^]. Seems like everybody has the same problem, today Smile | :)

.

~RaGE();

Hamid_RT18-Apr-06 18:50

Hamid_RT

18-Apr-06 18:50

Hi Surivevoli
maybe it is some helpful to you

http://bobmoore.mvps.org/Win32/w32tip41.htm

Binary inputs

CPP91118-Apr-06 9:00

CPP911

18-Apr-06 9:00

Hi

I found in some postings the data types "BYTE" and "DWORD". Can someone tell me in what library they can be found if any?

Another question, the posting says BYTE b=50; but if we have a stream of binary digits in a file, is there an easy command to input every 32 (or k bits in general) into a variable for further processing or will i have to use a pointer and keep track of the number of bits already inputed and convert it step by step to a decimal integer (by adding 2^m each time...)?

Thanks

Re: Binary inputs

Rage18-Apr-06 9:09

18-Apr-06 9:09

A BYTE is an unsigned 8bit value.
A DWORD is an unsigned 32bit value.

Should be defined in <windows.h>

CPP911 wrote:
Another question, the posting says BYTE b=50; but if we have a stream of binary digits in a file, is there an easy command to input every 32 (or k bits in general) into a variable for further processing or will i have to use a pointer and keep track of the number of bits already inputed and convert it step by step to a decimal integer (by adding 2^m each time...)?

fread ?
CFile::Read ?

~RaGE();

Re: Binary inputs

David Crow18-Apr-06 9:37

David Crow

18-Apr-06 9:37

CPP911 wrote:
I found in some postings the data types "BYTE" and "DWORD". Can someone tell me in what library they can be found if any?

You can find them in windef.h.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Re: Binary inputs

Stephen Hewitt18-Apr-06 15:34

Stephen Hewitt

18-Apr-06 15:34

They are defined in <windef.h> but you only need to include <windows.h> if you want to use them as it includes <windef.h>.

Steve

Converting numbers

Waldermort18-Apr-06 8:49

Waldermort

18-Apr-06 8:49

Hi all,

I have found myself totaly confused yet again. I need to convert a 32bit int to a double. Well the docs say "an IEEE 754 floating-point value (64bit double precision). It then goes on to demonstarte the before and after (without any code).

0x3FF00000 -> (Decoded value) 0x3FF0000000000000 -> (Result) 1.0 'decimal'

I have managed to find some examples on the net, but unfortunatly none of them are in C/C++. Here is a C# method:

double ToDouble(int n){
    byte[] doubleBytes = new byte[8];
    byte[] uintBytes = BitConverter.GetBytes(n);
    Array.Copy(uintBytes, 0, doubleBytes, doubleBytes.Length - uintBytes.Length, uintBytes.Length);
    return BitConverter.ToDouble(doubleBytes, 0);
}

I hope somebody can help me with the answer, I am totaly stuck. Thankyou.

Rage18-Apr-06 9:06

18-Apr-06 9:06

OK, so the naive dumb question first Blush | :O

: Why is this not working :

int i=3;
double d=(double)i;

~RaGE();

Waldermort18-Apr-06 9:10

Waldermort

18-Apr-06 9:10

When I apply that to the given example 0x3FF00000, instead of getting 1.0 I get back 1072693248.0000000. Which is well away from what I want.

Rage18-Apr-06 9:14

18-Apr-06 9:14

Sorry, I must miss something:

3FF00000(hex) = 1072693248(dec), so why should 3FF00000(hex) be equal to 1.0 ?

~RaGE();

Waldermort18-Apr-06 9:30

Waldermort

18-Apr-06 9:30

Thats exactly why I am so confused. The 32bit int value comes from a byte array, and it is supposed to represent a number. There is a flag which indicates whether the int is an int or a float. I can convert the int, but I am totally lost while trying to convert to a float.

An RK value is an encoded integer or floating-point value. 
RK values have a size of 4 bytes and are used to decrease file size for floating-point values. 
If bit 1 is cleared, the encoded value represents the 30 most significant bits of an IEEE 754 
floating-pointvalue (64-bit double precision). The 34 least significant bits must be set 
to zero. If bit 1 is set, the encoded valuerepresents a signed 30-bit integervalue. To get 
the correct integer,the encoded value has to beshifted right arithmeticaly by 2 bits. If bit0 
is set, the decoded value(both integer and floating-point)must be divided by 100 to get thefinal 
result.

I am able to convert the value to an integer, but this text just doesn't explain enough for me.

-- modified at 15:32 Tuesday 18th April, 2006