C / C++ / MFC Discussion Boards

How to place a background picture under the grid

happycampus25-Mar-03 3:36

25-Mar-03 3:36

hi,my friends.
Ijust meet one problem,I hope here must be someone that can help me!
In one of my programs, I use the MFC Grid control 2.24 which is one popular Grid on Codeproject.com.Now I want to place a background Image under the grid.But the CGridCtrl don't have such a function.
and how can I do?

I hope to get your help!

Smile | :)

thanks anyway!

how to delete corrupted file

A_CAN25-Mar-03 3:16

A_CAN

25-Mar-03 3:16

Hello all:
How can I delete the corrupted file ? DeleteFile fails for this file with unknown error code.
Thanks in advance

Re: how to delete corrupted file

Ravi Bhavnani25-Mar-03 4:28

Ravi Bhavnani

25-Mar-03 4:28

What does GetLastError() return?

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: how to delete corrupted file

Anonymous25-Mar-03 4:58

Anonymous

25-Mar-03 4:58

just 0, I am on Windows 98.
Thanks.

Re: how to delete corrupted file

Ravi Bhavnani25-Mar-03 5:22

Ravi Bhavnani

25-Mar-03 5:22

Are you sure you're calling GetLastError() immediately after calling DeleteFile()?

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

static and non-static function

wow999925-Mar-03 3:05

wow9999

25-Mar-03 3:05

Hi all

Can a static function call a non-static function inside the same class?

or

Can a static function call a non-static function in different class?

Thanks

Re: static and non-static function

Alin Negru25-Mar-03 3:13

Alin Negru

25-Mar-03 3:13

wow9999 wrote:
Can a static function call a non-static function inside the same class?

no

or

Can a static function call a non-static function in different class?

no

Re: static and non-static function

Tim Smith25-Mar-03 3:15

Tim Smith

25-Mar-03 3:15

Yes, no problem. As long as you have the object you wish to invoke the function.

Tim Smith

I'm going to patent thought. I have yet to see any prior art.

Re: static and non-static function

wow999925-Mar-03 3:20

wow9999

25-Mar-03 3:20

Dear Tim Smith

can you show me a example or hint to see a static or non-static funciton to call a static or non-static function.

Thanks

Re: static and non-static function

C^hris L^osinger25-Mar-03 3:50

C^hris L^osinger

25-Mar-03 3:50

class Foo
{
public:
  void Blah();
  
  static void Blech()
  {
     Foo f;
     f.Blah();
  }
};

-c

Image tools: ThumbNailer, Bobber, TIFFAssembler

Re: static and non-static function

Ravi Bhavnani25-Mar-03 4:26

Ravi Bhavnani

25-Mar-03 4:26

A static method doesn't have a this reference. Hence, it can only call other static methods of its class. However, if the static method has access to an instance of a class, it can call that instance's static or non-static method.

class Foo {
  ...
  public:
    static void staticFuncA();
    static void staticFuncB();
    void nonStaticFunc();
}
 
void Foo::staticFuncA()
{
  staticFuncB();      // OK
  nonStaticFunc();    // invalid, since no "this" reference
 
  Foo f;
  f.nonStaticFunc();  // OK
}

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: static and non-static function

Brigsoft25-Mar-03 7:58

Brigsoft

25-Mar-03 7:58

1)Yes, if I pass to the function object of its class.
2) By a same way.

================================
Useful links

Duplicate Menu..

Brian Shifrin25-Mar-03 2:51

Brian Shifrin

25-Mar-03 2:51

Anyone has handy library fuction to copy CMenu or HMENU???

Thanks,
Brian

P.S.
I know how, just to lazy to iterate menues & submenus & states...

Re: Duplicate Menu..

lucy25-Mar-03 4:12

lucy

25-Mar-03 4:12

do you mean the resource?

If so, open the *.rc file which contains the menu resource you want in visual studio while the destination project is opened. click on the resource ID, drag it to your destination project. That's it.

Re: Duplicate Menu..

Brian Shifrin25-Mar-03 4:34

Brian Shifrin

25-Mar-03 4:34

>do you mean the resource?

Nope

Dynamic CMenu/HMENU....

Re: Duplicate Menu..

John R. Shaw28-Mar-03 18:29

John R. Shaw

28-Mar-03 18:29

No, but could you be more specific.

Trust in the code Luke. Yea right!

Check for existance of an application.

Neha25-Mar-03 1:58

Neha

25-Mar-03 1:58

Hi,

I have a application which doesn't have proper window name
and class name(Class name will be #32770(Dialog) and Window name was "").So i can't use FindWindow(). Application is a third party application,about which we don't have much information. Now i want to check for existance of that application. How can i do that?

Regards

Re: Check for existance of an application.

567890123425-Mar-03 4:14

5678901234

25-Mar-03 4:14

If you have the name of application exe file, you can find it using the following functions:
EnumProcesses

For each enumerated process

OpenProcess
EnumProcessModules
GetModuleFileNameEx

Reading Hard Disk at hardware-level

Anonymous25-Mar-03 1:48

Anonymous

25-Mar-03 1:48

Hi
How do you read bytes from the harddisk using Visual C++ 6.0? (Used for reading filesystems)

I know you can use _bios_disk() with the bios.h include, but VC++ doesn't have this file or it's functionality. Is there another way to do it in windows, without using assembler?

Cheers

Re: Reading Hard Disk at hardware-level

Daniel Turini25-Mar-03 3:06

Daniel Turini

25-Mar-03 3:06

You can call DeviceIoControl API function.
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/devio/base/calling_deviceiocontrol.asp[^]

Be careful.
Backup your data first.

It's not the fall that kills you: it's the sudden stop - Down by Law, Jim Jamursch (1986)

Re: Reading Hard Disk at hardware-level

John M. Drescher25-Mar-03 5:41

John M. Drescher

25-Mar-03 5:41

Anonymous wrote:
I know you can use _bios_disk()

You can only do this in winodows 9X or lower. Win NT, 2k or XP will not allow this because you cannot access the bios interrupts directly.

John

Re: Reading Hard Disk at hardware-level

John R. Shaw28-Mar-03 18:42

John R. Shaw

28-Mar-03 18:42

Be more specific. What is your goal? As for using the bios and asymbly, that is why we have so many versions of 9.x (direct access without security).

Trust in the code Luke. Yea right!

Bits and bytes handling

emrosa25-Mar-03 0:39

emrosa

25-Mar-03 0:39

Hi there...I'm writing a program that will work at bits/byte level. It will accept a double number as an argument, and then the number will be decomposed in two parts: the high and the low, I'm going to do some operations with them.

I know about the bitwise operators, but Is anyboady know how to make the decomposition

double FUNCTION(double argument)
{
int hx,lx
//MISSING THIS PART!!!!
hx = HIGH_PART(argument);
lx = LOW_PART(argument);
//other operations with hx and lx
//
return(final_result)
}

Eric Manuel Rosales Pena Alfaro
PhD student
Unversity of Essex
Wivenhoe Park
Colchester, CO4 3SQ
Essex, Uk
email: emrosa@essex.ac.uk
tel: +44-01206-87311

Re: Bits and bytes handling

jhwurmbach25-Mar-03 1:08

jhwurmbach

25-Mar-03 1:08

emrosa wrote:
...bits/byte level...double...

Do you perchance talk about DWORD?
Or do you really mean double, the extended precision floating point type?

In case of DWORD, have a look at the HIWORD and LOWORD macros in MSDN.

My opinions may have changed, but not the fact that I am right.

Re: Bits and bytes handling

Roger Allen25-Mar-03 2:02

Roger Allen

25-Mar-03 2:02

Why not use a standra C union:

union Converter
{
 {
 short low;
 short high;
 }
 double value;
};

Converter x;

x.value = 5.67;
short low = x.low;
short high = x.high;

My uinion syntax may not be correct as I have not sed them for years n years n years....

Roger Allen
Sonork 100.10016

Were you different as a kid? Did you ever say "Ooohhh, shiny red" even once? - Paul Watson 11-February-2003

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