C / C++ / MFC

Re: in win32api problem working with dll

18-Jan-12 4:38

Richard MacCutchan wrote:
each backslash in the path should be preceded by another in order for the character escape sequences to be correct

Forgot about that... I almost always just use the lib name in pragma comments and add the directory as a "library directory" (since the compiled libraries are usually kept together, in my case anyway).

Richard MacCutchan18-Jan-12 6:12

Richard MacCutchan

18-Jan-12 6:12

Yes, me too. Interestingly when I tested this although my string was wrong, the actual escapes were valid (\f and \b) so the problem was not diagnosed by the compiler.

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in win32api i need animation ,jumping ball .someone know where i can find the code for this ?

a1_shay17-Jan-12 11:46

a1_shay

17-Jan-12 11:46

thanks

Re: in win32api i need animation ,jumping ball .someone know where i can find the code for this ?

Richard MacCutchan17-Jan-12 11:51

Richard MacCutchan

17-Jan-12 11:51

Look at some of the articles here on CodeProject or search Google. Animation like this is not that difficult once you have learned the principles of Windows GDI[^] and/or GDI+[^].

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Re: in win32api i need animation ,jumping ball .someone know where i can find the code for this ?

Albert Holguin17-Jan-12 13:28

in win32api resize window

17-Jan-12 13:28

You should put a little bit of effort yourself to accomplish your task. Then we can help you understand any issues or questions you may have.

a1_shay17-Jan-12 6:16

a1_shay

17-Jan-12 6:16

in win32api
if i resize the window i want all the things i have inside to move also ,how can i do that ?
thanks

Chris Meech17-Jan-12 6:30

Chris Meech

17-Jan-12 6:30

One suggestion would be to walk through the list of all child windows and call MoveWindow() for each of them to place them in new positions. If you are looking for a single API call to do this, I don't beleive such a call exists. Smile | :)

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Albert Holguin17-Jan-12 6:46

17-Jan-12 6:46

Chris Meech wrote:
I don't beleive such a call exists.

I believe you're right... Smile | :)

Chris Meech17-Jan-12 6:51

Chris Meech

17-Jan-12 6:51

I'll have to talk to The Big Guy about that spell checker. Big Grin | :-D

Albert Holguin17-Jan-12 6:54

17-Jan-12 6:54

Browse on Firefox... it's built in... Big Grin | :-D

Albert Holguin17-Jan-12 6:48

17-Jan-12 6:48

Chris is right... there's really no simple way of doing this... they have to be moved independently.

CPallini17-Jan-12 6:50

17-Jan-12 6:50

You have to move them yourself since there's nothing automatic in Win32.
Smile | :)

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David Crow17-Jan-12 6:54

David Crow

17-Jan-12 6:54

See the Extras section of this article. It's MFC, but you should be able to accomplish the same thing with Win32.

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PJ Arends17-Jan-12 9:27

PJ Arends

17-Jan-12 9:27

Look up DeferWindowPos, BeginDeferWindowPos, and EndDeferWindowPos functions in MSDN.

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modified 17-Jan-12 17:36pm.

a1_shay17-Jan-12 11:44

a1_shay

17-Jan-12 11:44

wow i like this forum.
because i have an exam i dont have the time to check yours suggestion. i decide to limit the resize the window so i dont need to move anything.with this

case WM_GETMINMAXINFO:
{
LPMINMAXINFO pinfo =(LPMINMAXINFO)lParam;
if (pinfo!=NULL)
{
pinfo->ptMinTrackSize.x=750;
pinfo->ptMinTrackSize.y=550;
}
return 0 ;
}

thanks again

Albert Holguin17-Jan-12 13:58

17-Jan-12 13:58

a1_shay wrote:
wow i like this forum.

Glad you like it... now use it wisely...

C syntax problem

__John_16-Jan-12 23:25

__John_

16-Jan-12 23:25

Hi,

The following code compiles no probs...

typedef struct SLLNode_t
{
    void* m_pData;
    struct SLLNode_t* m_pNext;
};


void foo()
{
    struct SLLNode_t* pNewNode = (struct SLLNode_t*)malloc(sizeof(struct SLLNode_t));
}

The following, with a call to assert, generates a an error C2143: syntax error : missing ';' before 'type'.

typedef struct SLLNode_t
{
    void* m_pData;
    struct SLLNode_t* m_pNext;
};


void foo()
{
    assert(0 == 0);

    struct SLLNode_t* pNewNode = (struct SLLNode_t*)malloc(sizeof(struct SLLNode_t)); // < C2143 here.
}

assert is defined as follows...

#define assert(_Expression) (void)( (!!(_Expression)) || (_wassert(_CRT_WIDE(#_Expression), _CRT_WIDE(__FILE__), __LINE__), 0) )

What is wrong? How do I fix it?

Thanks - John.

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CPallini16-Jan-12 23:44

16-Jan-12 23:44

__John_ wrote:
What is wrong?

In C programming language variable declarations must be at the beginning of the block.

__John_ wrote:
How do I fix it?

This way

void foo()
{
  struct SLLNode_t* pNewNode = (struct SLLNode_t*)malloc(sizeof(struct SLLNode_t)); 
  assert(0 == 0);
}

«_Superman_»17-Jan-12 0:12

«_Superman_»

17-Jan-12 0:12

You could do this -

void foo()
{
  struct SLLNode_t* pNewNode = NULL;
  assert(0 == 0);
  pNewNode = (struct SLLNode_t*)malloc(sizeof(struct SLLNode_t));
}

«_Superman_»
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Polymorphism in C

CPallini17-Jan-12 0:17

17-Jan-12 0:17

Of course. However, it won't change program behaviour. Big Grin | :-D

«_Superman_»17-Jan-12 0:28

«_Superman_»

17-Jan-12 0:28

Normally assert is done before any processing is done.
That's what I meant to indicate.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Polymorphism in C

CPallini17-Jan-12 0:32

17-Jan-12 0:32

Yes, I got that. I was just kidding a bit on 'assert(0==0)'.
Smile | :)

__John_17-Jan-12 0:32

__John_

17-Jan-12 0:32

Doh!

I've been doing C++ for too long and forgot that one.

Thanks guys, +5 all round.

“If I had asked people what they wanted, they would have said faster horses.”
― Henry Ford

CPallini17-Jan-12 0:33