SOS! About the API CreatePolygonRgn() - C / C++ / MFC Discussion Boards

How to view a file with default viewers?

ryuki6-Aug-04 0:41

6-Aug-04 0:41

How can I view a file with an external viewer from within my application? I know I could use the "system" command, but then I have to give the path to the external viewer, but what when I don't know the path? I mean if my application needs to view a html page I could give a path to netscape or IE, but what if there is not one of them at the system because the user only installed opera? Is there a quick and easy way to access the windows default viewer for the different fileformats? You know if you doubleclick on a file windows starts an application for viewing or editing that fileformat. Is there a command to do that easiely in a VC++ project?

Re: How to view a file with default viewers?

Michael P Butler6-Aug-04 0:53

Michael P Butler

6-Aug-04 0:53

Have a read of ShellExecute on MSDN. Or do a google for some examples.

Michael

CP Blog [^]

Re: How to view a file with default viewers?

ryuki6-Aug-04 2:02

ryuki

6-Aug-04 2:02

Thanks a lot! I managed to solve my problem. Big Grin | :-D

how to run multiple instances of a service

Michael Olsen6-Aug-04 0:32

Michael Olsen

6-Aug-04 0:32

Hello all,

I have a problem figuring out how to start a service more than once at a time.
it seems to be posible, but all my tries to date have failed.

Could anyone help me with this problem?

in advance, thanks

Michael Olsen

Re: how to run multiple instances of a service

Michael P Butler6-Aug-04 0:50

Michael P Butler

6-Aug-04 0:50

Michael Olsen wrote:
Could anyone help me with this problem?

A Windows service by its very nature can only be run once. You'd have to have a different service name for each instance you want to run.

Why do you want to have multiple instances of a service?

Michael

CP Blog [^]

Re: how to run multiple instances of a service

Michael Olsen8-Aug-04 21:09

Michael Olsen

8-Aug-04 21:09

Thanks for the reply.

The service is a kind of router, and with multiple instances more customers could be serviced (on diferent ports) without mixing. like acidentialy sending data to another customer.

I had hoped this could be done by starting the same service multiple times listening to different ports.

Michael Olsen

Re: how to run multiple instances of a service

Michael P Butler8-Aug-04 21:19

Michael P Butler

8-Aug-04 21:19

Michael Olsen wrote:
I had hoped this could be done by starting the same service multiple times listening to different ports.

I'm no expert on this, but I think the "correct" way would be to have one service that has multiple threads. One thread per port.

Michael

CP Blog [^]

SOS! About the API CreatePolygonRgn()

xulibing6-Aug-04 0:24

xulibing

6-Aug-04 0:24

There is a question about the API fuctions,which are CreatePolygonRgn() and PtInregin().
When I used CreatePolygonRgn() to create a closed regin, which is surrounded by any closed curve, and then used PtInregin() to judge the points whether in the closed regin, there is a question arised. the left edge of regin is judged out of then regin,and the right edge is judged in the regin. they are contrary. I want to ask this question whether caused by the CreatePolygonRgn(). SOS ! Waits! Confused | :confused:

go on,next...

Re: SOS! About the API CreatePolygonRgn()

xulibing6-Aug-04 15:00

xulibing

6-Aug-04 15:00

sos!

go on,next...

Re: SOS! About the API CreatePolygonRgn()

xulibing6-Aug-04 15:01

xulibing

6-Aug-04 15:01

help!

go on,next...

How to Set HotKeys

zahid_ash6-Aug-04 0:04

zahid_ash

6-Aug-04 0:04

HI ,

I want ot set Hot keys in my Application .
example as when press Ctrl+P = Play a file method call.

I think use Accelerator here.. is it ..

But how , and where i can trap these keys .
to do action that i want
any sample??

thanx

Regards.

Re: How to Set HotKeys

Antony M Kancidrowski6-Aug-04 0:39

Antony M Kancidrowski

6-Aug-04 0:39

Yes you use accelerators for this. You set message handlers to accelerator in the same way you set message handlers to menu items.

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

Re: How to Set HotKeys

zahid_ash6-Aug-04 0:46

zahid_ash

6-Aug-04 0:46

i did that but ........... Frown | :(

can u send me any sample ..

thanx

Regards.

i got it

zahid_ash6-Aug-04 0:55

zahid_ash

6-Aug-04 0:55

i got it

thanx

Regards.

Set font for window

rrrado5-Aug-04 23:32

rrrado

5-Aug-04 23:32

I'm creating the CEdit control dynamically using Create() in my dialog.
I need this edit box to use default dialog font, not that ugly big font.
Is this clean way to do this ?

BOOL CMyDialog::OnInitDialog()
{
    ....
    m_myedit.Create(....);
    m_myedit.SetFont(GetFont());
    ...

It is working, and no memory leaks are reported, but I'm unsure about how CFont works - do I need to keep instance of CFont I've used for whole life time of edit box ?

Thank you !

rrrado

Re: Set font for window

Antony M Kancidrowski6-Aug-04 0:21

Antony M Kancidrowski

6-Aug-04 0:21

Since the edit box will only live for the lifetime of the dialog then it is perfectly acceptable to do what you have done.

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

Re: Set font for window

rrrado6-Aug-04 0:27

rrrado

6-Aug-04 0:27

Thank you ! Rose | [Rose]

rrrado

Simpe SQL query : WHERE field LIKE........ I'm lost !!!

Danoo5-Aug-04 23:26

Danoo

5-Aug-04 23:26

Hi y'all
I really hope there an SQL guru out there, because I'm trying to do one of the simplest SQL queries but no luck

In my MFC-DAO application, I want to lauch this query:

SELECT * FROM Songs WHERE Title LIKE '%D'

And I cannot make it work at all... any other WHERE query works ok, but the LIKE queries just make me crazy...

Any ideas?

Regards
Daniel

Re: Simpe SQL query : WHERE field LIKE........ I'm lost !!!

Duncan Edwards Jones6-Aug-04 2:08

Duncan Edwards Jones

6-Aug-04 2:08

What wildcard does the databasae you are targetting use? I seem to recall that ms-access uses "*" whereas ansi-SQL uses "%"...

'--8<------------------------
Ex Datis:
Duncan Jones
Merrion Computing Ltd

Re: Simpe SQL query : WHERE field LIKE........ I'm lost !!!

RChin6-Aug-04 2:08

RChin

6-Aug-04 2:08

Danoo wrote:
SELECT * FROM Songs WHERE Title LIKE '%D'

What do you want the statement to return ? This is a valid SQL statement, but I suspect your search string is formatted incorrectly.

If you want to search for all names beginning with "PAL", then you would use:

select * from [mytable] where [field] like 'PAL%'

It might be worth mentioning as well that I'm using ADO to format my queries. I think that DAO, and ACCESS uses '*' instead of '%'. (don't quote me on that though)

I Dream of Absolute Zero

Re: Simpe SQL query : WHERE field LIKE........ I'm lost !!!

David Crow6-Aug-04 2:18

David Crow

6-Aug-04 2:18

RChin wrote:
...ACCESS uses '*' instead of '%'. (don't quote me on that though)

You are correct. Quote away!

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Simpe SQL query : WHERE field LIKE........ I'm lost !!!

Danoo8-Aug-04 21:39

Danoo

8-Aug-04 21:39

Thanks guys, I didn't knew about the wildcard difference between * and %
Regards
Daniel

Re: Simpe SQL query : WHERE field LIKE........ I'm lost !!!

Looney Tunezez6-Aug-04 4:21

Looney Tunezez

6-Aug-04 4:21

Danoo wrote:
SELECT * FROM Songs WHERE Title LIKE '%D'

I am assuming that you want to retrieve all songs information whose titles END with the letter D.
Are you able to run this query through the query analyzer and what is the output?
Because the Query seems correct as far as syntax is concerned, or maybe i just need more caffeine

"Creating tomorrow's _legacy systems today.....
.... One ^CRISIS at a time!" -- Unknown

"If you build it....
.....BUGS will come!" -JB

this.Dispose();

"A _Bug is a piece of <sup> code </sup> that knows whatz its purpose"

How to use CSplitterWnd in non-matrix splitting?

Neeranjan5-Aug-04 23:17

Neeranjan

5-Aug-04 23:17

Hi All,

Using CSplitterWnd class I can split the window in row X column statically.
But I want to split the window as shown below:

|---------------------------|
|      |                    |
|------|                    |
|      |                    |
|      |--------------------|
|      |         |          |
|      |         |          |
|------|--------------------|

How can I do this?
Please, any one has the code for it? any clues?

Thanks & Regards,
Neeranjan

Re: How to use CSplitterWnd in non-matrix splitting?

David Crow6-Aug-04 2:25

David Crow

6-Aug-04 2:25

Neeranjan wrote:
Please, any one has the code for it?

Search MSDN for the GENSPLIT example. It has four panes.

Here is a CP article that has three panes.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

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