Simple menu question - C / C++ / MFC Discussion Boards

Iain Clarke, Warrior Programmer30-Jul-08 5:26

30-Jul-08 5:26

One problem I can see is that one iteration of your work will be so fast that errors in timing (eg GetTickCount used to have a 19ms resolution) will swamp the times you are measuring.

If you put your code in a loop and run it 1000 times, get a time, divide by 1000 and you have a far more reliable figure. By doing a larger sample size, your timings for the two methods should converge, and your question becomes irrelevant.

My knowledge of encryption is at the hand waving stage, so I'm actively avoiding the fine detail of your application.

I don't think you can attach a file to your post - but you can cut and paste in between pre tags.

Iain.

Re: Timer in AES code

zc12330-Jul-08 5:34

zc123

30-Jul-08 5:34

OK. I'll try to use a loop in both methods and time them. Tks Iain.

Visual Studio 2005 project loading

tom groezer30-Jul-08 3:39

tom groezer

30-Jul-08 3:39

I wish to know how to reduce the time taken by projects in a solution to load. I have over a 100 projcts in a solution and it takes too much time to load for the projects.

Re: Visual Studio 2005 project loading

KarstenK30-Jul-08 3:52

KarstenK

30-Jul-08 3:52

1. Can confgure VS so that not all projects got load. "Unload projects"
2. VS2008 is faster
3. Make subprojects were not all projects are included Laugh | :laugh:

Greetings from Germany

Re: Visual Studio 2005 project loading

tom groezer30-Jul-08 5:06

tom groezer

30-Jul-08 5:06

the sln file is version controlled one.

Re: Visual Studio 2005 project loading

tom groezer30-Jul-08 5:19

tom groezer

30-Jul-08 5:19

After the projects gets loaded there is some time spend in building something.
I think this is the ncb database. Is is a one time activity or each time I open a sln file after all the projects are build this ncb database is built from scratch.

Re: Visual Studio 2005 project loading

Mark Salsbery30-Jul-08 6:38

Mark Salsbery

30-Jul-08 6:38

Have you installed VS 2005 SP1?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Simple menu question

masnu30-Jul-08 3:36

masnu

30-Jul-08 3:36

I need to update the check on my menu item so created a message handler to my UPDATE_COMMAND_UI event. The code is as follows:

void CSpDlg::OnUpdateShowPeak(CCmdUI *pCmdUI)
{

//	Update menu
	pCmdUI->SetCheck( m_bShowPeakVoltage );

}

The menu item does not update, however. I'm I missing something?

Thanks.

Re: Simple menu question

vikas amin30-Jul-08 4:28

vikas amin

30-Jul-08 4:28

If u need it before creating use the flags MF_CHECKED

You need to use DrawMenuBar() after you do any modification to the menu .

The CheckMenuItem function sets the state of the specified menu item's check-mark attribute to either selected or clear.

Good MSDN article
http://msdn.microsoft.com/en-us/library/ms647558(VS.85).aspx[^]

Vikas Amin

My First Article on CP" Virtual Serail Port "[^]

modified on Thursday, July 24, 2008 5:33 PM

Re: Simple menu question

Iain Clarke, Warrior Programmer30-Jul-08 4:32

Iain Clarke, Warrior Programmer

30-Jul-08 4:32

I would suggest adding your command to a toolbar to see if that updates or not.

I see your command is in a dialog. Is this a formview? If it is a modeless window, the command messages may not be routing there. Try adding the updateui handler to whatever is your CMainFrame (look in CMyApp::InitInstance to see what is being assigned to m_pMainWnd.

Have a read / google about OnCmdMsg - it may give you the clues about message routing that help you.

Good luck - missing messages are not magic, but they can be a pain to track down.

Iain.

Re: Simple menu question

Mark Salsbery30-Jul-08 6:44

Mark Salsbery

30-Jul-08 6:44

For a dialog, you need to handle the undocumented WM_KICKIDLE
message to get the command enablers working.

See: WM_KICKIDLE for Updating MFC Dialog Controls[^]

If you are tracking a popup menu, you may need to set the menu
item states before calling TrackPopupMenu(Ex).

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

64 bit enum?

Rob Caldecott30-Jul-08 3:30

Rob Caldecott

30-Jul-08 3:30

Is there a way to create a enum that contains 64 bit numbers or does the compiler always assume that an enum is an int?

for example:

enum MY_ENUM<br />
{<br />
    VALUE = 0x10000000000000000,<br />
};

Re: 64 bit enum?

sashoalm30-Jul-08 3:52

sashoalm

30-Jul-08 3:52

On my computer it gives

warning C4341: 'VALUE' : signed value is out of range for enum constant

but may be compiler specific

There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition.
Blaise Pascal

Re: 64 bit enum?

Rob Caldecott30-Jul-08 3:57

Rob Caldecott

30-Jul-08 3:57

Yes, I get the same error, and I want to know if there is a way around it...

Re: 64 bit enum?

Randor 30-Jul-08 4:29

Randor

30-Jul-08 4:29

sashoalm wrote:
but may be compiler specific

Yes, it seems to be compiler specific accoring to the ISO standards:

The underlying type of an enumeration is an integral type that can represent all the enumerator values defined in the enumeration. It is implementation-defined which integral type is used as the underlying type for an enumeration except that the underlying type shall not be larger than int unless the value of an enumerator cannot fit in an int or unsigned int. If the enumerator-list is empty, the underlying type is as if the enumeration had a single enumerator with value 0.

Best Wishes,
-David Delaune

Re: 64 bit enum?

toxcct30-Jul-08 4:03

toxcct

30-Jul-08 4:03

I believe the standard tells the compiler to implement it like an int...

maybe Nemanja (Trifunovic) could confirm Smile | :)

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Re: 64 bit enum?

CPallini30-Jul-08 5:13

CPallini

30-Jul-08 5:13

No luck on a 32 bit system with Visual C++ compiler, read this page [^].
Smile | :)

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]

How can I hide main window and modal dialogs of a third-party app?

sashoalm30-Jul-08 2:32

sashoalm

30-Jul-08 2:32

I'm trying to automate mspaint to print some files, and I do this by sending WM_COMMAND / WM_LBUTTONDOWN / WM_LBUTTONUP messages. I can hide the main dialog by passing SW_HIDE to CreateProcess, but I don't know how to hide the modal Print dialog.

And is it better to use GDI+ or some other library to print the files instead? Will it be easier or harder? It must be able to support jpg, tiff, gif and png.

There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition.
Blaise Pascal

Re: How can I hide main window and modal dialogs of a third-party app?

Alan Balkany30-Jul-08 3:31

Alan Balkany

30-Jul-08 3:31

You can use EnumWindows () http://msdn.microsoft.com/en-us/library/ms633497(VS.85).aspx[^] to go through all the open windows on your system.

For each one, you can examine its attributes (title, position, size) until you find the ones you're looking for. Then you can hide them.

GDI+ supports all the images types you mentioned.

Re: How can I hide main window and modal dialogs of a third-party app?

sashoalm30-Jul-08 3:45

sashoalm

30-Jul-08 3:45

Thanks, that works Smile | :)

There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition.
Blaise Pascal

Re: How can I hide main window and modal dialogs of a third-party app?

vikas amin30-Jul-08 4:42

vikas amin

30-Jul-08 4:42

If you want/need to use alternative methods see the articles
http://www.codeproject.com/KB/openGL/opengl_printing.aspx[^]

http://www.codeproject.com/KB/openGL/glprint.aspx[^]

Vikas Amin

My First Article on CP" Virtual Serail Port "[^]

modified on Thursday, July 24, 2008 5:33 PM

Re: How can I hide main window and modal dialogs of a third-party app?

sashoalm30-Jul-08 5:03

sashoalm

30-Jul-08 5:03

Hi,

Thanks for posting. But why OpenGL? The files I want to print have nothing to do with 3D. Can OpenGL open png, jpg or gif files from disk?

There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition.
Blaise Pascal

Office 2007 styles not working in dialogs

Redeye9230-Jul-08 2:06

Redeye92

30-Jul-08 2:06

I've got an MDI application I'm working on which is set to use the CMFCVisualManagerOffice2007 black style which all works fine apart from any dialog boxes I launch from it which just use the standard XP style. Is there a way to get around this so they display in the same style as the rest of the app?

Apologies in advance if this is a monumentally dumb question - I'm fine with the complicated stuff, it's the simple bits I get stuck with...

Re: Office 2007 styles not working in dialogs

Rob Caldecott30-Jul-08 5:17

Rob Caldecott

30-Jul-08 5:17

I think you're out of luck. Frown | :(

There is a CDialogEx class, but as far as I can see, this is only used to specify a background colour/image.

Re: Office 2007 styles not working in dialogs

Redeye9230-Jul-08 6:51

Redeye92

30-Jul-08 6:51

I was afraid that was the case. Thanks anyway Rob.

I was expecting there to be a CMFCDialogWithBellsOn or something, but apparently not.

The thing I don't really understand is that you can create a dialog app with the Office 2007 styles, or you can create an MDI app with the Office 2007 styles, but if you launch a dialog box from that MDI app then it appears to use the standard OS style. Obviously the documentation is more than a little sparse and despite a great deal of time searching I've had no joy.

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