C / C++ / MFC Discussion Boards

Re: "#if defined" problem ...

PJ Arends3-Mar-03 9:29

PJ Arends

3-Mar-03 9:29

it is looking for prapi.h, not rapi.h

Sonork 100.11743 Chicken Little

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

Within you lies the power for good - Use it!

Re: "#if defined" problem ...

Daniel Strigl3-Mar-03 10:02

Daniel Strigl

3-Mar-03 10:02

Yes... and this command is in the rapi.h file:

<br />
...<br />
#include <ceapimap.h><br />
<br />
#ifdef CONN_INTERNAL<br />
#include <prapi.h>  // internal defines<br />
#endif<br />
<br />
#endif // #ifndef RAPI_H<br />
...<br />

It looks like the eVC++ includes the rapi.h (because eVC++ found it!) but can't find the prapi.h file!

Daniel Wink | ;)

---------------------------
Never change a running system!

Re: "#if defined" problem ...

PJ Arends3-Mar-03 10:43

PJ Arends

3-Mar-03 10:43

Ok, fair enough.

Are you sure the rapi.h file is not being included by another file. try commenting out the #include line and see what happens then. If it still complains then that line is not your problem.

HTH

Sonork 100.11743 Chicken Little

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

Within you lies the power for good - Use it!

ON_CONTROL_RANGE and BN_PUSHED

Scott H. Settlemier3-Mar-03 9:04

Scott H. Settlemier

3-Mar-03 9:04

Darn, sometimes something that should be easy gets
complicated. I have a modeless dialog that send
messages to its parent window. These are WM_COMMAND
messages for BN_CLICKED, BN_PUSHED, and BN_UNPUSHED.
e.g.

GetParent()->SendMessage(WM_COMMAND,(WPARAM)(BN_PUSHED<<16|nID),0);

To the parent window's message map I have added the
entries:

ON_CONTROL_RANGE(BN_CLICKED,ID_0,ID_N,OnClickX)
ON_CONTROL_RANGE(BN_PUSHED,ID_0,ID_N,OnPushedX)
ON_CONTROL_RANGE(BN_UNPUSHED,ID_0,ID_N,OnUnpushedX)

However, OnClickX is called to for BN_CLICKED, BN_PUSHED,
and BN_UNPUSHED.

I walked through with the debugger and the correct message
is sent (WM_COMMAND with BN_CLICKED, BN_PUSHED, or BN_CLICKED)
but the wrong handler is invoked. (I stopped short of
trying to walk through the CCmdTarget's use of the
message map (that is some seriously ugly code to walk
through.) in the hope that someone will have some knowledge
here.

Am I doing something wrong? missing something here?

I tried changing the order of the message
map entries in case there was a problem

Re: ON_CONTROL_RANGE and BN_PUSHED

Scott H. Settlemier3-Mar-03 9:17

Scott H. Settlemier

3-Mar-03 9:17

Ah, I found the problem.
If I didn't pass the button's window handle in the lParam,
then the CWnd's OnCommand handler, zeros the nCode
parameter, effectively making everything into a BN_CLICKED.
So I need to do:

GetParent()->SendMessage(WM_COMMAND,(WPARAM)(BN_PUSHED<<16|nID),hBtn);

Should I have known that?
(i.e. what purpose does that zeroing serve in OnCommand?)

launcher :)

MemLeak3-Mar-03 8:59

MemLeak

3-Mar-03 8:59

Hi!

I have 3 Apps in my project. I would like to create a dialog with 3 buttons so that if I click on the first button the first app is launched. If I click on the second button, the second app is launched...

How can I do this?

thanks for helping..

Regards

Everything's beautiful if you look at it long enough...

Re: launcher :)

C^hris L^osinger3-Mar-03 9:09

C^hris L^osinger

3-Mar-03 9:09

1. find the path to each of your EXEs
2. use CreateProcess, spawn or WinExec to launch them

-c

When history comes, it always takes you by surprise.

Bobber!

Re: launcher :)

MemLeak4-Mar-03 4:58

MemLeak

4-Mar-03 4:58

You Again!!

Well it seems that you are always there to answer my questions...;)

Thanks!!

Everything's beautiful if you look at it long enough...

How do I check the contents of the 'recv' function in window sockets

IrishSonic3-Mar-03 8:45

IrishSonic

3-Mar-03 8:45

Hiya how do I check the contents of the recv function in window sockets??
I want to check the contents of the string, char by char.

This is my code so far:

int ret;
CString text;

for( int nReceivedBytes = 0;nReceivedBytes < 255; )
{
ret = recv( sock_Accept,text,255, 0 );
if( ret > 0 )
{
nReceivedBytes += ret;
}
}

Thanks,
grahamoj.

Re: How do I check the contents of the 'recv' function in window sockets

valikac3-Mar-03 8:51

valikac

3-Mar-03 8:51

What do you mean check the contents of the string? Given that your code stores the incoming data into variable text, one solution is to check the CString object via [] operator.

Kuphryn

Enumerating exported DLL functions

Anonymous3-Mar-03 8:39

Anonymous

3-Mar-03 8:39

Hey all,

I want to get a list of exported DLL functions from a DLL (like Dependency Walker does) - along with each function's entry point.

How do I do that?

Thanks!

Re: Enumerating exported DLL functions

Alvaro Mendez3-Mar-03 8:53

Alvaro Mendez

3-Mar-03 8:53

I may be wrong, but isn't the code for the Dependency Walker part of the examples shipped with Visual Studio?

Regards,
Alvaro

There are no stupid questions, but there are a lot of inquisitive idiots. -- despair.com

Re: Enumerating exported DLL functions

Anonymous3-Mar-03 10:24

Anonymous

3-Mar-03 10:24

As far as I know - no...
I also looked for it on MSDN and couldn't find it.

Any other ideas? :-/

Re: Enumerating exported DLL functions

IceMatrix3-Mar-03 11:35

IceMatrix

3-Mar-03 11:35

find some articles about the PE file format(it's the file format of exe and dll ... files).
i found a very nice tutorial at http://spiff.tripnet.se/~iczelion/tutorials.html

have a look at these tutorials, then u just have to code Smile | :)

have fun

danny

Anonymous3-Mar-03 8:38

Anonymous

3-Mar-03 8:38

Hey all,

I want to get a list of exported DLL functions from a DLL (like Dependency Walker does) - along with each function's entry point.

How do I do that?

Thanks!

MDI Question

Anonymous3-Mar-03 8:27

Anonymous

3-Mar-03 8:27

Hello there

I would like to be able to open files from the left frames (I use Windows Explorer's TreeView style and a RichEditView app)

How could people open files from the tree when they double-click it?

Or how could I create a permanent (not included in each new window) tree control that could be used to open files faster?

Re: MDI Question

valikac3-Mar-03 8:42

valikac

3-Mar-03 8:42

Your question has more to do with design than technique. One solution is add a double mouseclick handler for the tree control. Open the file if applicable.

Kuphryn

Re: MDI Question

Bartosz Bien4-Mar-03 12:26

Bartosz Bien

4-Mar-03 12:26

Use a dialog bar for the tree (there are many examples around here), and the sole CRichEditView as an MDI child view.

Regards,
BB

crashes because parent is not a window??

ns3-Mar-03 8:17

3-Mar-03 8:17

It crashes in afxwin2,. saying for the postmessage that(IsWindow) isnt true.
Here is my code:

void CTrio::OnClose() 
{	
<code>//	if (IsWindow(m_pParentWnd->GetSafeHwnd()))</code>	{
		m_pParentWnd->PostMessage(UDM_PHOTO_CLOSED,WPARAM(this),0);
	
	}


	CDialog::OnClose();


	DestroyWindow();
}

If I add the commented out if., it never goes into it to post.

AFXWIN_INLINE BOOL CWnd::PostMessage(UINT message, WPARAM wParam, LPARAM lParam)
	{ ASSERT(::IsWindow(m_hWnd)); return ::PostMessage(m_hWnd, message, wParam, lParam); }
#

Appreciate your help,
ns

Re: crashes because parent is not a window??

Alvaro Mendez3-Mar-03 8:22

Alvaro Mendez

3-Mar-03 8:22

You have your "if (IsWindow" line commented out. Confused | :confused:

Regards.
Alvaro

There are no stupid questions, but there are a lot of inquisitive idiots. -- despair.com

Re: crashes because parent is not a window??

ns3-Mar-03 8:24

3-Mar-03 8:24

I know....but if I put the if in, the messgae NEVER gets posted!! I need to post it!

Appreciate your help,
ns

yet I've posted to the parent successfully with the same pointer elsewhere.....

Re: crashes because parent is not a window??

Alvaro Mendez3-Mar-03 8:50

Alvaro Mendez

3-Mar-03 8:50

Is your parent window still around at this point? If so, use the debugger to check that the value of your member variable is still valid. Perhaps it's getting changed somewhere.

Also, if your parent is going away before the dialog box, and that's OK with you, you may consider moving the code in your message handler to the dialog's class. Another option is to write code in the parent window to close the dialog box before going away.

Regards,
Alvaro

There are no stupid questions, but there are a lot of inquisitive idiots. -- despair.com

Re: crashes because parent is not a window??

ns3-Mar-03 8:52

3-Mar-03 8:52

My parent is not going away at all!!!! not before and not after! I'll check the debugger. Thanks.

Appreciate your help,
ns

found my mistake but....a very odd thing.

ns3-Mar-03 9:21

3-Mar-03 9:21

This is bizaare, but I had so many classes where I used the parentWnd that in this one I didnt even retrieve it from the CReate() function where it came in as a 'this'. Fine. I see my carelessness that the debugger promptly showed me (thanks A M )

BUT my code compiled with this m_pPArentWnd variable being used but never declared anywhere in the class!!!! I checked several times but I do NOT have an m_pParentWnd defined in this class!!! Confused | :confused:

Appreciate your help,
ns

Re: found my mistake but....a very odd thing.

PJ Arends3-Mar-03 9:42

PJ Arends

3-Mar-03 9:42

m_pParentWnd is a protected member of the CDialog class. Any class derived from CDialog will have access to this member variable.

See file AfxWin.h line 2639.

HTH

Sonork 100.11743 Chicken Little

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

Within you lies the power for good - Use it!

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