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What is a binary file ? How do u read / write into a binary file.
Thanx
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Take a look in MSDN about CFile
The modus to read/write is spcified during the creation of the object
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
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Text mode treats end line characters differently. Check out the documentation.
Peter
"Until the invention of the computer, the machine gun was the device that enabled humans to make the most mistakes in the smallest amount of time."
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open it in notepad... if you find it readable, then it's probably a text file.
if it contains "hieroglyphs" or so, then it's a binary file, and you must know the format of how the data have been written in it to read them back
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Hello everyone,
I have written two simple programs (source codes are the same),
1. In an exe, loading a class from another COM component by invoking CoCreateInstance;
2. In a COM DLL, loading a class from another COM component by invoking CoCreateInstance;
1 success but 2 fails. I am running in the same environment (machine) using Visual Studio 2005. Any ideas of this issue?
thanks in advance,
George
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Can anyone tell how to convert a widechar string to VARIANT
I have an unsigned char* string , I am converting it to widechar using MultiByteToWideChar.
How to convert it to VARIANT ?
The data is getting lost if i use ColeVariant.
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If you paste your code here, that would be more helpful but simply u can do it by setting the vt of variant to VT_BSTR and then create a bstr. Put the string in BSTR by using ::SysAllocString and set that BSTR in the variant.
Something like:
BSTR bstrString = ::SysAllocString(str);
VARIANT var;
var.vt = VT_BSTR;
var.bstrval = bstrString;
Regards,
"Some people believe football is a matter of life and death.
I'm very disappointed with that attitude.
I can assure you it is much, much more important than that. -- Bill Shankly"
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I have sumthng like this
VARIANT getData()
{
unsigned char* puc_Data = " SOME TEXT ";
// I am converting the above unsigned char to whar_t* using
MultiByteToWideChar(CP_UTF8,..,puc_Data,len,wchar_t*,len);
// I want to take this wchar string and convert it to VARIANT
// Doing it thru COleVariant
ColeVariant var(wchar string );
// Data is getting lost sumwhere here ...
return var;
Can anyone suggest wat i m doing wrong??
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Why not just do this and let COleVariant do what it is designed to do?
ColeVariant getData()
{
char* puc_Data = " SOME TEXT ";
ColeVariant var(puc_Data);
return var;
}
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Hi all,
From where can i found OCR example(converting image into text) in VC++.
Regards
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Maynka wrote: From where can i found OCR example(converting image into text) in VC++.
it wholly depend on hardware you are using!..
"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
Support CRY- Child Relief
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hi!
how do i switch to ring0 in my program, and i call sidt (asm instruction) for read and change an intrrupt address?
Zo.Naderi-Iran
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Ring0 is in kernel memory area. So, you must create your program
as part of kernel.
(I never create this such program, but as long as i know you must
create modularized program which is registered in OS).
Henky Purnawan
henky@online-resource.org
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Hi,
I am customizing list control and building with x64 configuration, then testing on 64 bit windows xp professional edition listing of item is missing( Just blank). If any one come across this problem, can help me?
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Debugging the code, you can find problem yourself. As we are not aware of code you are using.
Prasad
MS MVP - VC++
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Hi,
I am new to this forum>plz let me know which forum is suitable for 'C' language.
And my question is -
What are the possible ways of writing C codes using 'const' keyword. I have written some.I need few more.
Plz go thru and send me any other cases where we can use const keyword in C only not C++.Hope I will get reply as early possible.
const int degrees = 360;
int const degrees1 = 180;
const float pi = 3.14;
const char quit = 'q';
int * const var1;
const int * var2;
int const * var3
const char * const Var4;
char const * const Var5;
void test1() const;
const int * test2(); /* function returns a adress that
could not be modified */
void test3(const int *i);
const int arr1[]={1,2,3,4,5,6,7};
char const *arr="coderzone";
typedef struct member
{
char name[20];
long phno;
};
const struct member M1 = {"Marino" , 62627000};
struct member * const M2 = {"John" , 2786900};
const struct member * const M3 = {"Smith",57361777};
union single
{
int I1;
char C1;
};
const union single S1 = {97};
union single * const S2 = {'A'};
const union single * const S3 = {'0'};
Thank U..
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There is nothing better than a paper and ink bounded book to learn C or in that case any programming language. To start with C please use the The C Programming Language by Schaum Series and move onto The C Programming Language by Dennis Richie and Brian W Kerningham, Pearson Education Publication.
But if you still insist on online Sites, best would be to Google the keyword and choose the best site upto your understanding.
There are only two kinds of people who are really fascinating-people who know absolutely everything, and people who know absolutely nothing.
Oscar Wilde (1854-1900)
Regards...
Shouvik
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what is the final goal behind this question please ?
const only means that the variable/object to which it is declared cannot be modified once initialized.
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hello every one..
my question:
Is there any possibilty to create drawing area in VC++?
if possible means plz help me with code?..
thank u
vikram
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Can you more explain,please?
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Ya, You can draw in any area of you application using device context. You can also restrict the area of drawing.
Have a look over:
CPaintDC, CClientDC, CMetaFileDC and CDC.
Well, everything depends on where and in which kind of application you want to draw. Try to be specific what exactly you want.
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vikramkarthik wrote: Is there any possibilty to create drawing area in VC++?
what type of drawing area are you looking for!
"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
Support CRY- Child Relief
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Hello,
I am porting an application form VC++ 6.0 to VC++ 2005. While building my application its showing error "Can't open .sbr file, no such file or directory". Can any body help me in this problem.
regards,
Yudhisthira
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Try to rebuild the entire solution.
Regards,
Paresh.
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