C / C++ / MFC

24-Jan-09 1:01

AnithaSubramani wrote:
Is it possible the listener for menu bar in MFC?

Listener??? What do you mean?

DebuggerEvents under C++ in Visual Studio [modified]

Re: Listener in MFC

Rajesh R Subramanian25-Jan-09 4:47

Rajesh R Subramanian

25-Jan-09 4:47

Are you wantig to write a hook? That's the closest thing I can imagine... Confused | :confused:

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Listener in MFC

Hans Dietrich25-Jan-09 9:04

Hans Dietrich

25-Jan-09 9:04

Do you mean you want to handle user clicks on menu entries?

Best wishes,
Hans

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primexx23-Jan-09 22:31

primexx

23-Jan-09 22:31

Hello,

I'm writing an add-in in for Visual Studio in C++ and need to get access to the DebuggerEvents in Visual Studio. See here for a description: http://msdn.microsoft.com/de-de/libr...s_members.aspx . Especially I need to receive events from "OnEnterBreakMode". Unfortunately all these methods are marked as "internal use only". There is also no definition in the headers.
The interesting part is, that I can access and get notification from all these events within C# without any problem. (C# reference on DebuggerEvents: http://msdn.microsoft.com/de-de/libr...us,VS.71).aspx) So how can I manage to access the DebuggerEvents in C++?

thanks for your help in advance!
Peter

modified on Saturday, January 24, 2009 4:53 AM

SetLayeredWindowAttributes() - Undeclared identifier

ganesh.dp23-Jan-09 22:06

Re: SetLayeredWindowAttributes() - Undeclared identifier

23-Jan-09 22:06

hi,
i am trying to transparent the dialog with color using this code. I included the windows.h and winuser.h
<pre>
SetLayeredWindowAttributes(GetSafeHwnd(),RGB(10,34,56),10,(LWA_COLORKEY|LWA_ALPHA));
</pre>

But it gives following error.

\\ITD254\VCC\Notes\NotesDlg.cpp(168) : error C2065: 'SetLayeredWindowAttributes' : undeclared identifier
\\ITD254\VCC\Notes\NotesDlg.cpp(168) : error C2065: 'LWA_COLORKEY' : undeclared identifier
\\ITD254\VCC\Notes\NotesDlg.cpp(168) : error C2065: 'LWA_ALPHA' : undeclared identifier

what i have to do

Ganesh

Naveen23-Jan-09 22:39

23-Jan-09 22:39

Which version of visual studio are you using? Have you set win version (_WIN32_WINNT ) to 0x0501 ?

Re: SetLayeredWindowAttributes() - Undeclared identifier

ganesh.dp23-Jan-09 22:56

Re: SetLayeredWindowAttributes() - Undeclared identifier

23-Jan-09 22:56

vc 6.0 and i tried #define WINVER 0x0500

Os- winxp

ganesh.dp23-Jan-09 23:00

Re: SetLayeredWindowAttributes() - Undeclared identifier

23-Jan-09 23:00

i opened the winuser.h and found that SetLayeredWindowAttributes() is not available.
for that i downloaded winuser.h, which has SetLayeredWindowAttributes() and replaced original but now compiler tells so many errors in winuser.h

any solution

Naveen23-Jan-09 23:07

23-Jan-09 23:07

ganesh.dp wrote:
i opened the winuser.h and found that SetLayeredWindowAttributes() is not available.

The SetLayeredWindowAttributes() will not be existing in the header files that comes with visual studio 6. So either you can download the platform SDK from here[^] and integrate it with VC6

or

Call the SetLayeredWindowAttributes() dynamically, using the LoadLibrary() and GetProcAddress() functions. The SetLayeredWindowAttributes exists in user32.dll dll and the value of LWA_COLORKEY and LWA_ALPHA are...

#define LWA_COLORKEY 0x00000001
#define LWA_ALPHA 0x00000002

Re: SetLayeredWindowAttributes() - Undeclared identifier

ganesh.dp23-Jan-09 23:28

Re: SetLayeredWindowAttributes() - Undeclared identifier

23-Jan-09 23:28

i got user32.dll

but i have some doubt.
1. can i load that dll from my project folder(because i download that from web, my don't doesn't)
2. if load that file in dynamic mode, but before that compiler gives error(for setlayeredwondowattributes()).

Frankly saying i'm new to VC so please guide me

Naveen23-Jan-09 23:39

23-Jan-09 23:39

ganesh.dp wrote:
1. can i load that dll from my project folder(because i download that from web, my don't doesn't)

No you dont have to download it from net. That dll comes with the installation of OS. it exists in the "c:\WINDOWS\system32\user32.dll"

ganesh.dp wrote:
2. if load that file in dynamic mode, but before that compiler gives error(for setlayeredwondowattributes()).

ok. This is how to call that function dynamically.

#define LWA_COLORKEY 0x00000001
#define LWA_ALPHA 0x00000002 
typedef BOOL (WINAPI *pSetLayeredWindowAttributes)( HWND hwnd, COLORREF crKey, BYTE bAlpha, DWORD dwFlags ); 


HMODULE hUser32 = LoadLibrary( _T("User32.dll"));
pSetLayeredWindowAttributes fnSetLayeredWindowAttributes = (pSetLayeredWindowAttributes)GetProcAddress( hUser32, "SetLayeredWindowAttributes");
if( 0 == fnSetLayeredWindowAttributes )
{
	AfxMessageBox( _T("Failed to load SetLayeredWindowAttributes function"));
}
else
{
	// Call the SetLayeredWindowAttributes function
	fnSetLayeredWindowAttributes( m_hWnd, 0, 100, LWA_ALPHA );
}
FreeLibrary( hUser32 );

Re: SetLayeredWindowAttributes() - Undeclared identifier

ganesh.dp24-Jan-09 0:10

Re: SetLayeredWindowAttributes() - Undeclared identifier

24-Jan-09 0:10

thanx...

bit more problem now, there is no compilation error but no transparent or color change is happened..

Naveen24-Jan-09 0:13

24-Jan-09 0:13

ganesh.dp wrote:
bit more problem now, there is no compilation error but no transparent or color change is happened..

Have you set WS_EX_LAYERED style? This style is necessary for the SetLayeredWindowAttributes() function to work.

Re: SetLayeredWindowAttributes() - Undeclared identifier

ganesh.dp24-Jan-09 0:58