C / C++ / MFC

How to Set Environment Variable using Mfc coding

27-Dec-06 20:09

Here is list of articles[^].

Prasad
Notifier using ATL | Operator new[],delete[][^]

Murugan k27-Dec-06 20:00

Murugan k

27-Dec-06 20:00

Help-I Don't know how to set environment path for Mycomputer System properties using MFC coding

Re: How to Set Environment Variable using Mfc coding

prasad_som27-Dec-06 20:14

Re: How to Set Environment Variable using Mfc coding

27-Dec-06 20:14

Use _putenv[^].

Prasad
Notifier using ATL | Operator new[],delete[][^]

Murugan k28-Dec-06 18:20

Murugan k

28-Dec-06 18:20

Thanks for valueable information

Re: How to Set Environment Variable using Mfc coding

James R. Twine28-Dec-06 3:03

James R. Twine

28-Dec-06 3:03

   Do not waste your time on things like the C-RTL and Win32 functions (SetEnvironmentVariable(...)) to set environment variables - these only affect the process' environment space - other processes will not be affected, nor will you see the change when you bring up up the system properties.

   If you need to change these values such that the change remains after your application exists and/or are visible to other application and the system, you will need to modify the registry.

   Look up the HKCU\Environment and HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment registry keys for more information on how to do this.

   Peace!

-=- James

If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
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Re: How to Set Environment Variable using Mfc coding

Murugan k28-Dec-06 18:19

Murugan k

28-Dec-06 18:19

Thanks for your valuable information

Video Capture but from other player

InFuPr27-Dec-06 19:47

InFuPr

27-Dec-06 19:47

Hi!

I've got small (I hope) problem.

I'm using some video player. It has almost all that I need - I miss only one thing in it. It can't made screenshots (no ability to save one frame of played video to image file).

I created graph file with SampleGrabber for this video player, but the problem is how to use SampleGrabber when it is working with other application and create screenshot from Video that actually is played? Video finally goes to VMR9...

Or maybe there's other way to get screenshot from video played in VMR9 in other player... but how?

Greets Smile | :)

Re: Video Capture but from other player

Mark Salsbery28-Dec-06 5:48

Mark Salsbery

28-Dec-06 5:48

You'd need to be able to communicate with the other player somehow. How do you know the other
player is using DirectShow?

No retrieval. [modified]

Shouvik Das27-Dec-06 19:09

27-Dec-06 19:09

in an MFC Appl with DB without file support i've a two field (Database in Access) in Table Password -- [User] n [Pass].

The hint box in the m_pSet variable is showing the variable but on tryin to retrieve th data( i'v three records in the table) only "" is returned Confused | :confused:

.

what can be the error. I don't want to use m_pSet->m_strSort rather in the m_pSet->Open(...) i'm pumping the exact query.

what can b the error.

a snippet of the whole code is

    <code>Pass p1;
p1.DoModal();
CString str,query,str1;
int flag = 0;
str=p1.m_pass;

m_pSet->Close();
query = "Select * from Password where User='Admin'";
m_pSet->Open(CRecordset::dynaset, (LPCTSTR)query,CRecordset::none);//,(LPCTSTR)query,0);
m_pSet->MoveFirst();
MessageBox(m_pSet->m_Pass.GetBuffer(20));
while(!m_pSet->IsEOF())
{
    str1=m_pSet->m_Pass.GetBuffer(20);
    if(str1==str)
    {
        flag=1;
        break;
    }
    m_pSet->MoveNext();
}</code>

actually i've to retriev user n pass from a popup dlg n then verify it from the DB.
here to check i've used default user as Admin.

what can b the error.
plz help

-- modified at 1:37 Thursday 28th December, 2006

Shouvik

Re: No retrieval.

Venkata Rama Subbarao27-Dec-06 19:43

Venkata Rama Subbarao

27-Dec-06 19:43

Are you getting any value in the Message Box? I think the problem with GetBuffer menthod. you need to convert it to CString, because the return type of GetBuffer method is LPTSTR.

Subbarao.

No retrieval.

Shouvik Das27-Dec-06 20:11

27-Dec-06 20:11

Actually there was a field name mismatch yesterday. So on rectifyin it the appl is working. no need to cast it to LPCTSTR as an overloaded method already is avail.

thanks a lot.

Shouvik

Re: No retrieval.

prasad_som27-Dec-06 19:55

27-Dec-06 19:55

shouvik.d wrote:
m_pSet->m_Pass.GetBuffer(20

Try using CRecordset::GetFieldValue instead.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Solved

Shouvik Das27-Dec-06 19:55

27-Dec-06 19:55

Sorry to all,

but i solved the prob. Thanks

Shouvik

Re: Solved

prasad_som27-Dec-06 20:05

27-Dec-06 20:05

It will be helpful to other, if you post how you'd solved it.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Solved [modified]

Shouvik Das27-Dec-06 20:31

27-Dec-06 20:31

yes i thought that and replied to Subbarao. It's just a mismatch in the fieldnames defined in C<<proj_Name>>View.cpp n the one existing in the DB. U pointed out the solution to me yesterday.

but strange thing was that the m_pSet->m_Pass was only thing not getting retrieved whereas all other values from table(s)(even other tables) were showing up.

What do u think could be the reason Confused | :confused:

-- modified at 2:38 Thursday 28th December, 2006

Shouvik

Re: Solved

prasad_som27-Dec-06 20:35

27-Dec-06 20:35

Again, there might be mismatch in field names. Have you tried using GetFieldValue.

But, you solved your prblem, isn't it?

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Solved

Shouvik Das27-Dec-06 20:50

Tree view control with check boxes

27-Dec-06 20:50

no not anymore. had there been the prob existin still now there would ve been a Too few parameters. Expected 1. would've been the message again. all fields are set right so its working fine now.

Shouvik

ramesh_s2127-Dec-06 19:09

ramesh_s21

27-Dec-06 19:09

hi ,
i am looking for sample programs on tree view control with check boxes. if any body having could u plz send it to sramesh21@gmail.com.

thanks in advance,
regards,
ramesh s

ramesh s

prasad_som27-Dec-06 19:16

27-Dec-06 19:16

ramesh_s21 wrote:
am looking for sample programs on tree view control with check boxes

A little search would have helped you[^].

ramesh_s21 wrote:
if any body having could u plz send it to sramesh21@gmail.com.

No , could not. Above article should suffice.

Prasad
Notifier using ATL | Operator new[],delete[][^]

ramesh_s2127-Dec-06 19:39

ramesh_s21

27-Dec-06 19:39

thanks prasad

regards,

ramesh s

prasad_som29-Dec-06 0:17

29-Dec-06 0:17

Send answer to your query.
You need to handle WM_NOTIFY, with cide NM_CLICK, for handling set and get check.

Prasad
Notifier using ATL | Operator new[],delete[][^]

kalyan_gowl27-Dec-06 21:37

kalyan_gowl

27-Dec-06 21:37

hi,

one method is that u have to drag n drop ur control on ur dialog and setproperties in that tick the checkboxes n proceed....

second menthod is that in precreate window u have change ex-style parameter to get checkboxes

kalyan

ramesh_s2127-Dec-06 23:54

ramesh_s21

27-Dec-06 23:54

ya kalyan i knew that.

my problem is i need to implement a situation where if i select a root item , all its child items should also get selected. for that i am looking for examples which include event handling such as WM_LBUTTONDOWN etc..
i am trying to work with GetCheck(param..) SetCheck(param..) .

but dont know where i am going wrong...

thats why i askd for example program...

regards,
ramesh s

ramesh s