C / C++ / MFC Discussion Boards

Supriya Tonape4-Sep-05 23:57

4-Sep-05 23:57

Hey, can anybody tell me how to check whether Hotfixes are installed or not thru pgm in VC++(Win SDK) when value is specified???
thanks in advance
Supriya Tonape

Re: HotFix

ThatsAlok5-Sep-05 0:09

ThatsAlok

5-Sep-05 0:09

Supriya Tonape wrote:
can anybody tell me how to check whether Hotfixes are installed or not thru pgm in VC++(Win SDK) when value is specified???

All the Installed application/hotfix can be found from this registry location :-
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

"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

Re: HotFix

Supriya Tonape5-Sep-05 1:46

Supriya Tonape

5-Sep-05 1:46

Yeah Alok I knew it but U didnt get my ques. I wanted to check them thru my pgm, I might need to use "RegOpenKey()" n "RegEnumKey()" funcs.
I m trying it out. hope U got my point.bye for now.
Thanks n Regards,
Supriya Tonape

Re: HotFix

ThatsAlok5-Sep-05 2:49

ThatsAlok

5-Sep-05 2:49

Supriya Tonape wrote:
I wanted to check them thru my pgm, I might need to use

Then this link might Help Smile | :)

-
http://www.codeproject.com/system/installed_programs.asp[^]

"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

Re: HotFix

Ravi Bhavnani5-Sep-05 3:05

Ravi Bhavnani

5-Sep-05 3:05

Corrected link[^]

/ravi

My new year's resolution: 2048 x 1536
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Re: HotFix

Supriya Tonape5-Sep-05 3:21

Supriya Tonape

5-Sep-05 3:21

Thanks Alok and Ravi.
I solved my prob Smile | :)

))) as I told U b4 I used those functions.
Thanks for Ur help.
Regards,
Supriya Tonape

Re: HotFix

ThatsAlok5-Sep-05 3:49

ThatsAlok

5-Sep-05 3:49

Ravi Bhavnani wrote:
Corrected link[^]

Thanks 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

simple Question

Eytukan4-Sep-05 23:54

Eytukan

4-Sep-05 23:54

int x;
for(i=1;i<=10;i++)
{
x=i;
cout<

Re: simple Question [edited]

toxcct5-Sep-05 0:05

toxcct

5-Sep-05 0:05

in the second case, it may allocate memory on different places, but as it is the system which decides, x may have the same address many times...

in C/C++, a variable declared in a local scope is destroyed when the program gets out of that scope. here, it the case at each loop of the for...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

-- modified at 6:11 Monday 5th September, 2005

Re: simple Question

ThatsAlok5-Sep-05 0:06

ThatsAlok

5-Sep-05 0:06

Vivekuniq wrote:
int x;
for(i=1;i<=10;i++)
{
x=i;
cout<<x;
}< i="">

Here memory for variable X will allocated in Stack for entire LOOP duration

Vivekuniq wrote:
for(i=1;i<=10;i++)
{
int x;
x=i;
cout<<x;
}< i="">

Here the Memory of Variable X will allocated and deallocated in each cycle of loop!

"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

Re: simple Question

G Haranadh5-Sep-05 0:32

G Haranadh

5-Sep-05 0:32

Again both came for race greate. I like you both.

Nice talking to you. Blush | :O

Re: simple Question

ThatsAlok5-Sep-05 0:35

ThatsAlok

5-Sep-05 0:35

G Haranadh wrote:
I like you both.

Thanks for liking Us 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

Re: simple Question

toxcct5-Sep-05 1:07

toxcct

5-Sep-05 1:07

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: simple Question

kakan5-Sep-05 0:36

kakan

5-Sep-05 0:36

In the second case, variable i will still be on the stack. It's likely that it vill occupy the same memory address at every loop, since the stack doesn't change within the loop.
Or am I wrong?

Re: simple Question

ThatsAlok5-Sep-05 1:12

ThatsAlok

5-Sep-05 1:12

kakan wrote:
It's likely that it vill occupy the same memory address at every loop, since the stack doesn't change within the loop.

purly depend on OS, AFAIK, Stack will be cleaned at every iteration!

"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

Re: simple Question

kakan5-Sep-05 1:35

kakan

5-Sep-05 1:35

Yes, the stack variables will be cleaned, that's true. But the variable i will be recreated for every iteration of the loop.
That's why i beleive that the variable i will occupy the same memory address of the stack for every iteration.
It's the compilers task to handle the stack, depending on calling convention etc., not the OS.

BTW, the stack isn't cleaned or allocated (except when the process/thread starts and exits). So i think 'cleaned' isn't very appropriate. Referenced/dereferenced is better, in my opinion.

Pls do correct me if I'm wrong.

Re: simple Question

ThatsAlok5-Sep-05 3:12

ThatsAlok

5-Sep-05 3:12

kakan wrote:
Yes, the stack variables will be cleaned, that's true. But the variable i will be recreated for every iteration of the loop.

That's Whats I am saying...

kakan wrote:
It's the compilers task to handle the stack, depending on calling convention etc., not the OS.

yeah I know but Compiler doesn't allocate address to the stack. That the Work of OS, you can correct if i am wrong..

kakan wrote:
the stack isn't cleaned or allocated (except when the process/thread starts and exits).
But PUSH and POP happens, i.e. variable is push and pop into/from Stack.

"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

Re: simple Question

Marc Soleda5-Sep-05 0:09

Marc Soleda

5-Sep-05 0:09

It could happen both situations ... It also depends on the memory usage of others threads.

... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

Re: simple Question

Eytukan5-Sep-05 0:46

Eytukan

5-Sep-05 0:46

hmmmm.... i get it Smile | :)

.. n will be back with the next Qn.. Smile | :)

thanx
V

Re: simple Question

Gary R. Wheeler5-Sep-05 5:47

Gary R. Wheeler

5-Sep-05 5:47

The behavior here is dependent upon the compiler implementation. When you define a variable, two things happen. One, memory is allocated to store the variable, and two, the variable's constructor is called to initialize it.

For atomic data types, the compiler may in effect perform a single static allocation, just prior to the top of the loop. This allocation occurs by virtue of assigning the variable 'x' a fixed offset from the stack pointer.

Regardless of how the memory is allocated, the compiler will call the constructor at the beginning of each iteration. Since 'x' is of type int, the constructor doesn't do anything.

How the compiler allocates memory in this case should be immaterial to you. When a variable is defined inside the loop, you should treat it as if it were newly constructed. For simple int values, this means the variable is uninitialized, and you can't rely on it containing the results from the previous iteration.

Software Zen: delete this;

How to use CByteArray to store and retrieve unsigned char data

snprani4-Sep-05 23:16

snprani

4-Sep-05 23:16

How to use CByteArray to store and retrieve unsigned char data

Re: How to use CByteArray to store and retrieve unsigned char data

ThatsAlok4-Sep-05 23:50

ThatsAlok

4-Sep-05 23:50

snprani wrote:
How to use CByteArray to store and retrieve unsigned char data

//To Store

CByteArray bytArray;
 bytArray.Add(10);
 bytArray.Add(11);

bytArray.Add(11);

//to retrieve

for(int i=0;i<bytArray.GetSize();i++)
{
cout<<bytArray.GetAt(i);
}

"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

handwolf@126.com

superhandwolf4-Sep-05 23:05

superhandwolf

4-Sep-05 23:05

A vc project using IHTMLDocument3 interface:

#include <mshtml.h>
//...
class CHTMLDocument2 : public CObject
{
//...
IHTMLDocument3* pHTMLDocument3;
};

When I building this project, report error messages as follows:

error C2143: syntax error : missing ';' before '*'
error C2501: 'IHTMLDocument3' : missing storage-class or type specifiers

And I find that there isn't class IHTMLDocument3 in the file <mshtml.h> of my compuer.

Is there anyone tell me how to upgrade <mshtml.h> and mshtml.dll to use IHTMLDocument3 interface?

Or other way to build this project successfully?

Thanks Smile | :)

Study! Study! Study!
Hard! Hard! Hard!

-- modified at 5:06 Monday 5th September, 2005

Re: handwolf@126.com

toxcct4-Sep-05 23:15

toxcct

4-Sep-05 23:15

it should[^]

did you installed the SDK ?

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: handwolf@126.com

handwolf824-Sep-05 23:30

handwolf82

4-Sep-05 23:30

I have installed the SDK, and add the path of SDK to Tools-->option-->Directories include files, then when building, another error occurs:

error C2601: 'LONG_PTR' identifier ...

the 'LONG_PTR' appears in <mshtml.h> of SDK.
How can I resolve the problem?

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