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I get it! Many thanks!
Appreciate your help,
ns
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SO I have a menu item that when clicked, runs a function OnMenuA(). WHen I click another menu item, I want to run the function that was triggered by pressing on the first menu item
Appreciate your help,
ns
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You just do the same thing you did for the first menu.
ON_COMMAND( FIRST_MENU_ITEM, OnMenuA )
ON_COMMAND( OTHER_MENU_ITEM, OnMenuA )
Or did I miss something obvious ?
Max.
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Well,
I wasnt the one that put in the ON_COMMAND stuff.......it gets put in automatically. SO when I use the CW and tell it to put in a COMMAND handler for a particular menu ID ID_B, it suggests a name OnMenuB for the handler . I guess you are saying that dont accept this default name but change it to OnMenuA.
Thank you much! It never crossed my mind.....
Appreciate your help,
ns
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I create a SDI projekt with the wizard. Then I put a Dialog in the View (FormView)!. And in this Dialog in a spezific Rect I want to Create a modeless Dialog (not doModal)!. So I can see the Dialog but I cant work on it pressing buttons and so on. How can I fix this problem?
The source from the Dll:
//////////////////////////////////////////////////////////////////////////////
CDlgTest dlg;
extern "C" __declspec(dllexport)
void InitTest(BOOL Test, CRect rect)
{
DWORD dwLastErr = NO_ERROR;
// surround the code in brackets, which will cause the temporary
// object created by AFX_MANAGE_STATE to be destroyed before leaving
// the exported function.
//
// NOTE : Do NOT call MFC code outside of these brackets.
{
AFX_MANAGE_STATE(AfxGetStaticModuleState());
dlg.Create(IDD_TEST, AfxGetMainWnd());
dlg.MoveWindow(rect);
dlg.ShowWindow(SW_SHOW);
//
// save possible errors
//
dwLastErr = ::GetLastError();
}
// only set error if none is currently set.
// (last error will always be NO_ERROR _unless_
// TlsGetValue failed earlier)
//
if (::GetLastError() == NO_ERROR)
::SetLastError(dwLastErr);
}
//////////////////////////////////////////////////////////////////////////////
Can anyone help me?
mail: dawo.office@gmx.net
Thanks.
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I have a problem accessing (writing and reading) the DS register.
If I include this sequence in my MFC-C++ program the app crashes:
mov ds, dx
I replaced it by the following code, but the app also crashes:
push dx
pop ds
It seems that it is forbidden to access the DS register in a MFC-C++ program?
But in assembler this is allowed and works fine!
Please help... how can I make the code above working??? Any pragmas or such things?
-Dominik
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Just taking a guess here...
On a 32-bit system DX is EDX. EDX is a 32-bit register and DS is a 16-bit register. You can't move 32-bits of data into 16-bits without something going wrong.
You said it worked in "assembler" before? Was that on a 16-bit system or an emulated 16-bit system (a.k.a.; WOW)?
Just my thoughts on the matter...
Jeremy Falcon
Imputek
<nobr>Excrement escapes everyone - even elders.
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I don't recall seeing DS being used very much in the assembly listings I have stared at.
However, anytime you modify a register make sure that you have pushed it before hand and popped it afterwords. These (push and pops) usually happen at function entry and exit, depending on the calling type (_cdecl or _stdcall.)
This is standard ASM etiquette.
The Ten Commandments For C Programmers
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I DO push and pop the registers...
See MSDN page "Interrupt 21h Function 71AAh Minor Code 0h", then you know what I want to do...
But if accessing the DS register is impossible... how do we then create drive substitutions in Win32 ???
Thanks for your reply
-Dominik
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Unless I'm completely fragged, this is not something you want to do. 
Visual C++ creates Win32 applications. Win32 applications run in protected mode. In protected mode all the segment registers point to the same descriptor that's internal to the OS. You don't want to touch them, because something somewhere will think you're trying to access memory that doesn't belong to your process, and crash.
You're caught up in 16-bit mode. Wake up and smell the late 80s.
Or start looking at 32-bit assembly to write your viruses... Let me know if you need some pointers. 
J
May the bear never have cause to eat you.
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I wanted to use the INT 0x21 routine (sub 0x71AA) to associate a drive letter to a path.
See MSDN "Interrupt 21h Function 71AAh Minor Code 0h".
No way to do this any more???
Thanks for your reply
-Dominik
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Dominik Reichl wrote:
No way to do this any more???
Not like that. That's DOS. Depending on your target platform, you'll probably have to go through the API. And I couldn't tell you where to begin looking for the solution in MSDN.
You could, however, start here[^].
J
May the bear never have cause to eat you.
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Of course you could just do this:
system("subst q: \myfiles");
J
May the bear never have cause to eat you.
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Hello, everyone.
Precursor:
I've developed in Visual C++ 6.0 for a while and now I'm developing in Embedded Visual C++ 3.0 for handheld devices. One of the pecular behavioural patterns, or rather, differences, between 6 and 3 is the auto-inclusion of MESSAGE_MAPping through to a control placed on a dialog. This also leads to the inability of 3.0 to allow member variables to be generated through the Class Wizard.
Which leads me to my question:
A) Where can I learn (through an on-line tutorial) about how the MESSAGE_MAPping works so I can enable dialog controls on my dialog without manually '#define'ing every dialog control by hand? (Or, at least, if I must do it by hand, what is the best method to perform such tasks.)
I'm also adding, as a member variable, a CListBox object and calling m_myListBox.Create(...rect,IDC_MYLISTBOX) to actually have a list box on the dialog. The intesting thing is this: 'IDC_MYLISTBOX,' on the dialog, in not visible. I only need the IDC_MYLISTBOX value for my create routine and after Create returns, I have a listbox. (Values added later through code.) If I delete the control from the dialog, the program bombs because EVC++ 3.0 needs its reference number from the resource file.
I'd, truely, rather not include a list box control on the form and then hide it and *then* call create on a member variable of type CListBox. Does that make sense to you? 
B) Should/Can I write in my own function maps through the MESSAGE_MAP routines of my classes when such class behaviour should be associated with a dialog control?
C) Are there any sites primarily associated toward developing hand held devices?
I hope my questions make sense. I know that in 6.0 it is bad Ju-Ju to toy-around in the MESSAGE_MAPs.
I've a dozen more questions with this topic/EVC++ 3.0 but I'll hold them for the moment. Thanks!
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y ! FAQ's?
~CodeTheDreams~
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Thanks for the reply but it is a little vague.
Are you talking about the Mike Dunn's C++ FAQs on this website? If not, where?
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I have a project, with a single executable and several dll's. I created an 'data carrier' object to pass information from one dll to another. I tried to place this object in a static library (.lib) and then link the executable and all dll's to this lib. However, when I do this I get access violation when accessing an object that was created by another dll. Therefore i moved the object to my executable, exported it and linked all my dll's to the lib of my executable. This seemed to work. But after some serious testing I still sometimes get access violations or dbg heap errors.
I did the same thing with other objects, and those do not (seem to) give any problem. The only difference I can find is that I use 2 members in the object that use templates.
Does anyone know a solution for this problem? I'm really running out of ideas.
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1. Read (carefully) MSDN: key words "__declspec(dllexport)" and "__declspec(dllimport)"
2. Use Wizard to create a simple DLL, check both sample code and exports. See how it is supposed to be done.
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I did use the declspec export and import as shown by the examples. I even used a .lib, which exports everything. Still nothing.
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Did you explicitly export you template data types (using typedef etc..)?
Is the memory model the same for all of your modules (lets say /MT with 8 byte alignment)?
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I used /MD everywhere, and I exported the template data types, but I did not use a typedef... what would a typedef add ?
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I had:
void CSearchView::OnButton1()
{
CRuntimeClass* pViewClass = RUNTIME_CLASS( <code>CBKView </code>);
if ( pViewClass == NULL ) return;
CMultiDocTemplate* pTemplate = theApp.m_pView1Template;
if ( pTemplate == NULL ) return;
((CMainFrame*)AfxGetMainWnd())->SwitchView( pTemplate, pViewClass );
}
and forgot to include BKView.h in the file, so I got:
C:\ATRAIN2\ASampleProjects\ZOrder SWITCH CENTERVIEW\SearchView.cpp(76) : error C2653: 'CBKView' : is not a class or namespace name
I understand the above error, but...
So I put in the line
#include "stdafx.h"
#include "BK.h"
#include "SearchView.h"
<code>#include "bkview.h"</code>
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif :
and I'm getting:
SearchView.cpp
c:\atrain2\asampleprojects\zorder switch centerview\bkview.h(28) : error C2143: syntax error : missing ';' before '*'
c:\atrain2\asampleprojects\zorder switch centerview\bkview.h(28) : error C2501: 'CBKDoc' : missing storage-class or type specifiers
c:\atrain2\asampleprojects\zorder switch centerview\bkview.h(28) : error C2501: 'GetDocument' : missing storage-class or type specifiers
Error executing cl.exe.
pointing to :
public:
CBKDoc* GetDocument();
Appreciate your help,
ns
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u didnt include in ur BKView.h what a CBKDoc is
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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I see what you mean. But check this out:
BEfore I had my CSearhView class, and I just ran stuff created by VS by default, things ran fine. I note that "bkdoc.h" was automatically included in the .cpp file.
SO after I made my SearchView filkes, neither the .cpp nor the .h files had the doc.h file in it. For some reason I didnt rememeber this omiission by VS in my past (first ) project.
But its compiling now. SO I thank you very very much!
Appreciate your help,
ns
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