C / C++ / MFC

Re: Problem with icon style CListCtrl on Vista, but not on XP

27-Oct-09 3:34

Have you entertained the possibility of a bad/corrupt/outdated icon cache? I've had it happen once with an older version of Windows, so it's probably not a common problem.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

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Sternocera27-Oct-09 3:37

Re: Problem with icon style CListCtrl on Vista, but not on XP

27-Oct-09 3:37

That seems like a reasonable explanation. I've found that moving the initialisation of the icons into OnIntialUpdate seems to fix the problem, but I'm not overly confident that it hasn't just temporarily concealed the problem.

I'll delete the cache to be sure.

Regards,
Sternocera

Michael Dunn27-Oct-09 14:38

Michael Dunn

27-Oct-09 14:38

Where is imgl declared? Is its lifetime longer than the lifetime of the list control?
It's a good idea to always zero-init structs, like LVITEM, so that you aren't accidentally sending garbage data in the members that you don't explicitly set.

--Mike--
Dunder-Mifflin, this is Pam

Re: Problem with icon style CListCtrl on Vista, but not on XP

Sternocera27-Oct-09 23:48

Re: Problem with icon style CListCtrl on Vista, but not on XP

27-Oct-09 23:48

Hi Mike,

Yes, imgl is declared in the same class definition as the CListCtrl. I have now zero initialised the LVITEM structs. Thanks for your help.

Regards,
Sternocera

Greg Prosch30-Oct-09 12:30

Greg Prosch

30-Oct-09 12:30

There is a method that allows adjustment of the icon width: SetIconSpacing() You might try playing around with that.

Re: Problem with icon style CListCtrl on Vista, but not on XP

Sternocera30-Oct-09 12:32

Calling WPF pages in VC++

30-Oct-09 12:32

I haven't had a re-occurrence since I simply initialised my structs, but thanks for pointing that out.

kDevloper27-Oct-09 2:50

kDevloper

27-Oct-09 2:50

Hi,

I am working on an application, which calls a WPF page in MFC exe and loads it too, but the backgound for the WPF is coming black.
here is code snippet
Declaration
using namespace System;
using namespace System::Windows;
using namespace System::Windows::Controls;
using namespace System::Windows::Media;

ref class Globals
{
public:
static System::Windows::Interop::HwndSource^ gHwndSource;
static WpfApplication1::Window1^ gwcContainer;
};
i have added in oninitdialog,

System::Windows::Interop::HwndSourceParameters^ sourceParams = gcnew System::Windows::Interop::HwndSourceParameters("MyWindowName");
sourceParams->PositionX = 20;
sourceParams->PositionY = 30;
sourceParams->ParentWindow = System::IntPtr(this->GetSafeHwnd());
sourceParams->WindowStyle = WS_VISIBLE | WS_CHILD;
System::Windows::Interop::HwndSource^ source = gcnew System::Windows::Interop::HwndSource(*sourceParams);

source->SizeToContent = System::Windows::SizeToContent::WidthAndHeight;

Globals::gwcContainer = gcnew WpfApplication1::Window1();

FrameworkElement^ myPage = Globals::gwcContainer;
source->RootVisual = myPage;

I dont want the black color around.

Any help is highly appriciated.

Thanks&Regards,
KDevloper

IcmpSendEcho error: 1231

Manmohan2927-Oct-09 2:25

Manmohan29

27-Oct-09 2:25

I got 1231 error value when using the code below.
1231: The network location cannot be reached. For information about network troubleshooting, see Windows Help.
my lan and internet is working fine.
then where is actually the problem residing.

HANDLE hIcmpFile;
unsigned long ipaddr = INADDR_NONE;
DWORD dwRetVal = 0;
char SendData[] = "Data Buffer";
LPVOID ReplyBuffer = NULL;
DWORD ReplySize = 0;

ipaddr = inet_addr((const char*)m_sAddress);
ReplySize = sizeof(ICMP_ECHO_REPLY) + sizeof(SendData) +1;
ReplyBuffer = (VOID*)malloc(ReplySize);

hIcmpFile = IcmpCreateFile();
if (hIcmpFile == INVALID_HANDLE_VALUE)
{
 return -1;
}
dwRetVal = IcmpSendEcho(hIcmpFile, ipaddr, SendData, sizeof(SendData) + sizeof(ICMP_ECHO_REPLY), NULL, ReplyBuffer, ReplySize, 500);
if(dwRetVal != 0)
	{
		PICMP_ECHO_REPLY pEchoReply = (PICMP_ECHO_REPLY)ReplyBuffer;
		struct in_addr ReplyAddr;
		ReplyAddr.S_un.S_addr = pEchoReply->Address;

		m_sMessage.Format(_T("Received from %s Status = %ld RoundTripTime = %ld"), inet_ntoa(ReplyAddr), pEchoReply->Status, pEchoReply->RoundTripTime);
		return 0;
	}

Future Lies in Present.
Manmohan Bishnoi

Sternocera27-Oct-09 3:06

27-Oct-09 3:06

If you want to use ping from your application, have a look at boost::asio. Boost have a ping example program that you may be able to adopt. Note that your application requires administrative privileges on Vista to create ICMP packets.

Regards,
Sternocera

David Crow27-Oct-09 3:19

27-Oct-09 3:19

Manmohan29 wrote:
I got 1231 error value when using the code below.

From GetLastError()?

Manmohan2927-Oct-09 3:30

Manmohan29

27-Oct-09 3:30

yes

Future Lies in Present.
Manmohan Bishnoi

David Crow27-Oct-09 3:40

27-Oct-09 3:40

Do you get that error for all addresses?

Manmohan2927-Oct-09 4:44

Manmohan29

27-Oct-09 4:44

yes same for all IP's.

My OS is Windows Seven RC.
I have also tested this on XP. There also the problem is same.

Future Lies in Present.
Manmohan Bishnoi

David Crow27-Oct-09 4:47

How to plug/unplug USB serial port problematically?

27-Oct-09 4:47

I suggest you try others examples from here.

pallaka27-Oct-09 2:10

pallaka

27-Oct-09 2:10

How to plug/unplug USB serial port problematically?

I am facing some strange issue with my USB serial port.
I want to unplug and plug the USB Serial port Programitically, as i need to refresh the connection between system and hardware connected.Kindly help.......

Thank in advance for the great programmers

Re: How to plug/unplug USB serial port problematically?

Roger Stoltz27-Oct-09 3:56

Roger Stoltz

27-Oct-09 3:56

pallaka wrote:
I want to unplug and plug the USB Serial port Programitically, as i need to refresh the connection between system and hardware connected.

You cannot do that from user mode. You must ask the driver for that functionality if it supports it at all, which I doubt when it comes to serial port drivers for USB.

pallaka wrote:
I am facing some strange issue with my USB serial port.

Perhaps you can elaborate on what the "strange issue" is all about.
It's quite possible that there is another solution than resetting the port/device.
What have you done so far and what problems are you facing that you want to solve by resetting the port?

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown

Who calls InitInstance()

Hari_1627-Oct-09 2:07

Hari_16

27-Oct-09 2:07

Hi All,

I have a basic question , i have a dialog based application and in the App class we create an object for the dialog class and do DoModal()in InitInstance() of the App class ..

Can anyone tell me when Run the Application How the InitInstance will get called or the other of calls made which calls the App classes InitInstance()

Thanks,
Hari

Cedric Moonen27-Oct-09 2:10

Cedric Moonen

27-Oct-09 2:10

There's a very easy way to check that: put a breakpoint in the function and start your debugger. Once the breakpoint is hit, take a look at the callstack.

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Hari_1627-Oct-09 2:32

Hari_16

27-Oct-09 2:32

I tried it and it says AfxWinMain() can anybody explain in detail and thks for the quick reply.

Cedric Moonen27-Oct-09 2:41

Cedric Moonen

27-Oct-09 2:41

Hari_16 wrote:
can anybody explain in detail

See here[^]. It's an old article but I think it will already give you valuable information.

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

CPallini27-Oct-09 2:49

CPallini

27-Oct-09 2:49

Hari_16 wrote:
Who calls InitInstance()?

God.

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Roger Stoltz27-Oct-09 4:10

Roger Stoltz

27-Oct-09 4:10

CPallini wrote:
Hari_16 wrote:

Who calls InitInstance()?

God.

I realize now why he's so busy these days....
Most problems in the world that some people are waiting for God to solve will remain due to all his calls to InitInstance()....

Revolutionary - I've never thought of it that way before!

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown