C / C++ / MFC Discussion Boards

LiYS9-Jan-05 22:58

9-Jan-05 22:58

Hi all:
I have a bunch of .wma files which is in "C:\Downloads" folder, and I copy them to another folder. So now there has two folders which have the same content concerning the .wma files.

What gets it really strange is that in details view within Explorer they have totally different amount of columns. In "C:\Downloads" folder these .wma files has lots of column such as "Artist", "Album", "release year" etc,. But in the other folder it only has "Type" and "modification time" two columns. How this difference could be happened since there's no environment differences, I really eager to know!
Thanks!!!

Re: Strange effect

Arjan Schouten9-Jan-05 23:05

Arjan Schouten

9-Jan-05 23:05

You can set folder details on a per folder basis,
just right click on the listview header in explorer and select what you want to see.

Arjan

Re: Strange effect

RChin9-Jan-05 23:07

RChin

9-Jan-05 23:07

You can switch on and off the columns that you want to be displayed via the menu item 'View->Choose Columns...', in Explorer. Or right click on the column header and select the appropriate column information.

I Dream of Absolute Zero

Re: Strange effect

LiYS9-Jan-05 23:09

LiYS

9-Jan-05 23:09

It really is!

'Open' Dialog

mcsherry9-Jan-05 22:12

mcsherry

9-Jan-05 22:12

Hi all,
Can anyone tell me if it is possible to customise the 'Open' dialog so that the user can select a Folder to 'open' instead of a file?

Also on a normal 'Open' dialog is it possible to disable the browse options so I can 'force' the user to select files from only the current location?

many thanks,
Andy

Re: 'Open' Dialog

toxcct9-Jan-05 22:16

toxcct

9-Jan-05 22:16

to select a folder instead of a file, change the flags you pass the open dialog by the OPENFILENAME structure.

to disable the "browse location" functionnality, i don't think it is possible.

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: 'Open' Dialog

FlyingTinman12-Jan-05 12:32

FlyingTinman

12-Jan-05 12:32

to select a folder instead of a file, change the flags you pass the open dialog by the OPENFILENAME structure.

This is a functionality I've been trying to get too. I wnat the user to select a folder only but I cannot find any combination of flags that allows me to close the dialog without actually selecting a file, or typing a filename into the "File name" edit box. Ideally I don't even want the "File name" edit box to appear on the dialog.
I have successfully used SHGetPathFromIDList() to select a folder only but prefer CFileDialog as SHGetPathFromIDList() does not remember the last folder selected.
Are there some undocumented flags that limit CFileDialog to opening folders instead of files?

Steve T

Re: 'Open' Dialog

Arjan Schouten9-Jan-05 22:43

Arjan Schouten

9-Jan-05 22:43

What's wrong with SHBrowseForFolder, it does exactly what you want. Fiddling with BFFM_ENABLEOK in your CallBack fuction you can force a user to select only files from the current location.

Arjan

Re: 'Open' Dialog

mcsherry10-Jan-05 1:09

mcsherry

10-Jan-05 1:09

cheers Arjan,
I've got the SHBrowseForFolder working, however I can't do the 'fiddling' in the callback function as the user doesn't select the files straight away.
I've investigated this a bit further and I've found a solution in the CFileDialog class on the m_ofn structure, on this we can set the Flag variable to 'OFN_NOCHANGEDIR' which according to MSDN

"Restores the current directory to its original value if the user changed the directory while searching for files.
Windows NT 4.0/2000/XP: This flag is ineffective for GetOpenFileName."

unfortunately I'm working on XP so I can't use this, so what I'm going to do is manually go through the selected directory get a list of all files which are of the right type and then populate a list box with these files. A Bit long winded but at present I don't have any other ideas.

If you have any ideas or comments on this please let me know,

thanks,
Andy

atomic clock and time zone programming

mr_mark_hewitt9-Jan-05 21:44

mr_mark_hewitt

9-Jan-05 21:44

Hi,

My question is really two-fold, I'm more looking for direction that actual code answers!

First, I want to use display a clock in my applicatio that uses an atomic clock to sync its time with. What is the recommended way to do this/links to useful info?

Second, I also need to display the time of other timezones, say I'm in LA, and want to diplay the time for London and NY. Does any body have links to information on how one would go about determing the time in other timezones,area. My biggest issue is with how the user can pick his location and how the software knows the timezone/etc at that location?

Many thanks in advance,
Mark

Re: atomic clock and time zone programming

Mike Dimmick10-Jan-05 1:29

Mike Dimmick

10-Jan-05 1:29

mr_mark_hewitt wrote:
First, I want to use display a clock in my applicatio that uses an atomic clock to sync its time with. What is the recommended way to do this/links to useful info?

Modern versions of Windows (XP, 2003) come preconfigured to contact time.windows.com using the Simple Network Time Protocol[^]. If you join a machine to a 2000 or 2003 Active Directory domain, the machine then gets its time from the domain controller.

Second, I also need to display the time of other timezones, say I'm in LA, and want to diplay the time for London and NY. Does any body have links to information on how one would go about determing the time in other timezones,area.

My World Clock[^] sample application does this. Source code is available at that link - it's a C# application but uses OS function calls for the actual time conversions. The tricky bit is handling daylight savings time - otherwise it would be a simple offset calculation.

My biggest issue is with how the user can pick his location and how the software knows the timezone/etc at that location?

You'd have to have some kind of database of locations and the corresponding time zones.

Stability. What an interesting concept. -- Chris Maunder

Re: atomic clock and time zone programming

mr_mark_hewitt10-Jan-05 2:28

mr_mark_hewitt

10-Jan-05 2:28

Wow, cool, many thanks for the link, great article!
The API function should do the trick just fine, I'll scan the net a bit to see if I can come up with an implementation someone did for 9x, otherwise this feature just won't be supported on those OS'es

Many thanks again!

Re: atomic clock and time zone programming

David Crow11-Jan-05 10:42

David Crow

11-Jan-05 10:42

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

IIS 6 and VC++ 6

Venkat Eswaran9-Jan-05 19:54

Venkat Eswaran

9-Jan-05 19:54

Dear All,
I am vc++ newbie. I need to create virtual directory in IIS 5.0/6.0 from vc++ 6 application I have this sample. http://www.installsite.org/pages/en/isp_net.htm[^] It is gives lots of errors when i comple it in VC++ 6.0. Can any one send me a sample code to create Virtual ditectory in IIS 5.0/6.0 from vc++ 6 application.

Thanks in Advance

Re: IIS 6 and VC++ 6

Mike Dimmick9-Jan-05 23:07

Mike Dimmick

9-Jan-05 23:07

You probably need an updated Platform SDK. Download it from Microsoft SDK Update[^]. Tell the installer to register with VC++ 6 if requested.

If that doesn't help try defining _WIN32_WINNT to 0x0500 before including any headers (e.g. at the start of your stdafx.h).

Stability. What an interesting concept. -- Chris Maunder

VC++ Dialog Control

phijophlip9-Jan-05 19:09

phijophlip

9-Jan-05 19:09

How can I change the background color in of dialog form if the values for red,green and blue are entered through three text boxs which are placed on the first dialog forms.The resultant color RGB color is displayed on the second dialog form.

Can anyone please help me in this matter

Hopping for a early reply from any one .

PHILIP

Re: VC++ Dialog Control

Monty²9-Jan-05 20:44

Monty²

9-Jan-05 20:44

In the second dialog form create a brush

// In Class Def
CBrush m_brBk;

//in Const
m_brBk.CreateSolidBrush(RGB( r,g,b ) );

OverRide OnEraseBackground
//
CRect rc;
GetClientRect(&rc);
//Draw using the above brush

hope it helps

C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg

Re: VC++ Dialog Control

FlyingTinman12-Jan-05 12:45

FlyingTinman

12-Jan-05 12:45

Happened to find this while looking for something else:

http://www.cilu.as.ro/calculatoare/sp_coloreddialog.php[^]

Should be what you need.

Steve T

Pass paramters to an application while openning a file

ytod9-Jan-05 15:44

ytod

9-Jan-05 15:44

Hi, everyone:
I have a problem about how to open a document file with a specific application or pass some parameters into the application while opening the document file.
For example:
I need to open a .nrv file, a Nero file. But using ShellExecute() would always open Nero in traditional mode. I wanna open the .nrv file by Nero Express. I examine the shortcut of the Nero Express is like this:
"C:\Program Files\Ahead\Nero\nero.exe" /w
It looks like passing a parameter into the nero.exe, how can I do that through programming? Thanks!

Re: Pass paramters to an application while openning a file

ThatsAlok9-Jan-05 17:21

ThatsAlok

9-Jan-05 17:21

In ShellExecute

HINSTANCE ShellExecute(
    HWND hwnd, 
    LPCTSTR lpOperation,
    LPCTSTR lpFile, 
    <code>LPCTSTR lpParameters, </code>
    LPCTSTR lpDirectory,
    INT nShowCmd
);

pass \W in lpParameters

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

Re: Pass paramters to an application while openning a file

ytod9-Jan-05 18:40

ytod

9-Jan-05 18:40

But that would only execute Nero Express but not open the .nrv file if lpFile is passed with the path of nero.exe and lpParameters is passed with /w. On the other hand, if lpFile is passed with the path of the .nrv file, the parameter /w is ignored since it views .nrv file as a document file, as MSDN said. Actually it didn't work... Sigh | :sigh:

But thanks for your reply anyway... Smile | :)

My code is like this:

// csFilePath is a CString object which is equal to the path of the nero.exe
// or the path of the .nrv file.
ShellExecute(GetSafeHwnd(), NULL, csFilePath, "/w", NULL, SW_SHOWNORMAL);

Re: Pass paramters to an application while openning a file

Anonymous9-Jan-05 19:33

Anonymous

9-Jan-05 19:33

I didn't check but what will happen if you attch your parameters right to the filename?

Re: Pass paramters to an application while openning a file

ThatsAlok9-Jan-05 20:23

ThatsAlok

9-Jan-05 20:23

ytod wrote:
ShellExecute(GetSafeHwnd(), NULL, csFilePath, "/w", NULL, SW_SHOWNORMAL);

Use it this way

CString str;
str.Format("/w %s",<code>lpFileNameToOpen</code>)

then

ShellExecute(GetSafeHwnd(), NULL, csFilePath,<code>str</code>, NULL, SW_SHOWNORMAL);</

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

Need some help

Member 16182599-Jan-05 15:20

Member 1618259

9-Jan-05 15:20

Hi! I downloaded the source code for the simple MP3 player from this site. I am trying to add volume buttons in MFC. I added the buttons and functions with the class wizard in Visual C++ 6.0, but my functions are not working. Here is my code:
void CAVIPlayerDlg::OnVolumeDown()
{
long vol;
vol = MCIWndGetVolume(m_Video);

vol-=250;
MCIWndSetVolume(m_Video,vol);

}

void CAVIPlayerDlg::OnVolumeUp()
{
long vol;
vol = MCIWndGetVolume(m_Video);

vol+=250;
MCIWndSetVolume(m_Video,vol);

}
It runs, but the call MCIWndGetVolume(m_Video) returns 0 each time, and the volume isn't affected. Any ideas?

Re: Need some help

ytod9-Jan-05 15:54

ytod

9-Jan-05 15:54

You may need to check if m_Video is a valid MCIWnd handle...
If so, use this function to check the error code: MCIWndGetError( ).
Good luck!

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