C / C++ / MFC

CToolBar and/or CDialogBar

26-Jun-06 8:15

See the code snippet in the Extras section of this article.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

kylur26-Jun-06 6:49

kylur

26-Jun-06 6:49

Greetings all!

I'd like to create a bar which will have a mixture of the tool buttons and controls (combo, pushbutton, edit, etc).

The CToolBar class will work for the tool buttons but the job of implementing the controls is too involved.

The CDialogBar class will work for the controls but how do I get the tool buttons to work? I've tried a standard button with the BS_ICON style; two problems: 1) button is 16x16, icon is 16x16 but the display lops off part of the icon and 2) how do I get the button to stay "depressed"? I've tried a standard button with the BS_BITMAP style but it: 1) loses the 'transparency' feature of icons, and 2) I still cannot get the button to stay "depressed". The BS_PUSHLIKE style does cause the button to appear to be pushed in on mouse click but does not remain pushed in.

The CReBar class will allow for the wrapping of a CToolBar in one band and the CDialogBar in another band but I'd really like to mix the tool buttons and controls in a more logical order.

So, the upshot is, I'd like to use the CDialogBar with BS_ICON style if the following problems can be fixed:

1) how do I display the full (standard sized) icon?
2) how do I simulate the icon being "depressed"?

Regards,
Kylur.

Re: CToolBar and/or CDialogBar [modified]

ovidiucucu26-Jun-06 7:49

ovidiucucu

26-Jun-06 7:49

set BS_OWNERDRAW style, and draw yourself in CButton::DrawItem overridden function (you need in this case to create your own class derived from CButton), or an easier alternative is to use CBitmapButton class.
add BS_AUTOCHECKBOX and BS_PUSHLIKE styles.

Ovidiu Cucu
Microsoft MVP - Visual C++

Re: CToolBar and/or CDialogBar

kylur28-Jun-06 5:12

kylur

28-Jun-06 5:12

Thanks! I appreciate the advise.

Regards,
Kylur

Mouse Event

Moujan26-Jun-06 6:39

26-Jun-06 6:39

I have a project to do that requires me to add the "mouse event". The directions says, "Visual C++ doesn't give a control to capture the mouse event.In Design view select application form, under properties window click on an icon event shown as lightning bolt."
I follow the direction but can't find the lighting icon. Could someone help me.

Thanks, Moujan

Re: Mouse Event

Jun Du26-Jun-06 6:47

Jun Du

26-Jun-06 6:47

HOMEWORK again.

Double check all the tabs in the property panel carefully.

Best,
Jun

Re: Mouse Event

Moujan26-Jun-06 6:52

26-Jun-06 6:52

Thanks, I found it. I just didn't look at the four icons on top, I only looked through the controls properties.

Thanks again,

Moujan

AssemblyInfo.cpp

Sarath C26-Jun-06 6:28

Sarath C

26-Jun-06 6:28

When I created a console application (VC++ .net) it added a file named AssemblyInfo.cpp. What is the purpose of this file?

SaRath.

"It is your attitude, not your aptitude, that determines your altitude - Zig Ziglar."
My Blog | Understanding State Pattern in C++

Re: AssemblyInfo.cpp

David Crow26-Jun-06 6:33

26-Jun-06 6:33

SaRath C wrote:
What is the purpose of this file?

The file's purpose is to contain code that is relevant to the project.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Re: AssemblyInfo.cpp

Eric Dahlvang26-Jun-06 7:46

Eric Dahlvang

26-Jun-06 7:46

DavidCrow wrote:
The file's purpose is to contain code that is relevant to the project.

Great answer.

----------
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.
- Laurence J. Peters

Try block

Moujan26-Jun-06 6:12

26-Jun-06 6:12

Could someone help me to understand, " When the code in a try block does not throw an exception, which of the following is false?"

1. all the catch handlers immediately following the try block are skipped
2. execution resumes with the first line of code after the catch handlers
3. a default exception is thrown
4. none of the function calls within the try block threw an exception

Thanks, Moujan

David Crow26-Jun-06 6:30

26-Jun-06 6:30

Could you have at least bothered to format this question so that it was not screaming

HOMEWORK!

How about spending a few hours studying up on what a try/catch block is/does? Is your education not worth at least that much effort?

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Moujan26-Jun-06 6:47

26-Jun-06 6:47

If I would know what a try block is, I would be able to answer the question. I wrote could someone help me to understand what the try block is and give the 4 choices. I didn't ask for the answer, but I ask for understanding the concept. You could it give suggestion what try block. Thanks David

David Crow26-Jun-06 7:10

26-Jun-06 7:10

Moujan wrote:
I didn't ask for the answer, but I ask for understanding the concept.

If that were indeed true, then you would have asked, "Can someone please explain to me what a try/catch block is, and what happens when..." instead of supplying a question with four possible answers.

http://www.parashift.com/c++-faq-lite/exceptions.html[^]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclang/html/_pluslang_the_try.2c_.catch.2c_.and_throw_statements.asp[^]

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

FarPointer26-Jun-06 8:05

FarPointer

26-Jun-06 8:05

Sorry David i wanted to give 5 but by mistake pressed 1.
Sorry Again.

Regards,
FarPointer
Blog:FARPOINTER

Re: Try block [modified]

Moujan26-Jun-06 10:25

26-Jun-06 10:25

David, I really didn't mean anyone give me an answer. I posted the question as it was stated to show what I am looking for since I don't know what try block is.

However, I looked through the posting and it seems most of them are homework questions but in a different way. If I offended anyone I am sorry.

Thanks for suggestions, Moujan
-- modified at 15:27 Monday 26th June, 2006

David Crow27-Jun-06 4:13

27-Jun-06 4:13

Moujan wrote:
If I offended anyone I am sorry.

I can't speak for others, but I would hardly get offended at someone for asking a homework question. I was simply pointing out to you what a better protocol would be.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Moujan27-Jun-06 5:17

27-Jun-06 5:17

Thanks David

Zac Howland26-Jun-06 7:14

Zac Howland

26-Jun-06 7:14

While it would be very easy to tell you the answer to your homework problem, it wouldn't help you much to do so. Instead, go to Bjarne's book (The C++ Programming Language) and use the index to look up "try-catch", "exceptions", and "exception handling".

If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week

Zac

Moujan26-Jun-06 10:27

26-Jun-06 10:27

Zac, you don't need to be rude. I explained it in my earlier respond.

Thanks, Moujan

Zac Howland26-Jun-06 10:31

Zac Howland

26-Jun-06 10:31

Rude? What part of that response was rude?

If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week

Zac

Michael Dunn26-Jun-06 10:52

Michael Dunn

26-Jun-06 10:52

1 is true
2 is usually true, however I think it's legal to goto out of a try block, in which case execution resumes at the target of the goto
3 is false - there's no such thing
4 cannot be determined. A function called in a try block may have thrown an exception, but contained a catch that caught and processed the exception.

--Mike--
Visual C++ MVP Cool | :cool:

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Moujan26-Jun-06 22:41

26-Jun-06 22:41

Thanks Mike for the explenation.
I still don't know when we use "try block" and why (this is not a homework question)! It is not in my assignments, so I don't know and I like to learn.

Thanks again,

Moujan

Michael Dunn27-Jun-06 7:28

Michael Dunn

27-Jun-06 7:28

See MSDN[^]

--Mike--
Visual C++ MVP Cool | :cool:

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