Re: Combo boxes - C / C++ / MFC Discussion Boards

Member 41868531-May-03 12:28

31-May-03 12:28

I have a need to call a Java servlet running in Solaris from Java and VC++ application. Basically i will be doing a http post to a url and sending a UTF-8 encoded GZip compressed XML document. I will get return as XML document from the servlet. I am able to achieve the required funtionality in Java applicaion as follows.

PrintWriter out = null;
connection = (HttpURLConnection) servlet.openConnection();
connection.setDoOutput(true);
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setRequestMethod("POST");
out =
new java.io.PrintWriter(
new OutputStreamWriter(
new GZIPOutputStream(connection.getOutputStream()),
"UTF8"),
true);

out.println(argString);

out.flush();
out.close();

GZIPInputStream in = new GZIPInputStream(connection.getInputStream());
BufferedReader buff = new BufferedReader(new InputStreamReader(in));
output = buff.readLine();

The same functionality i need to implement it in a VC++ application. During my post in the Java servlet it is giving stream not serialized and also i don't know how to do gzip compression for the post operation. I am using the following code,

IXMLHTTPRequestPtr pIXMLHTTPRequest = NULL;
HRESULT hr;

try {
CoInitialize(NULL);
hr=pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP");
SUCCEEDED(hr) ? 0 : throw hr;

hr=pIXMLHTTPRequest->open("POST", "http://url.Servlet", false);
SUCCEEDED(hr) ? 0 : throw hr;

hr=pIXMLHTTPRequest->setRequestHeader("Content-Type", "text/xml");
SUCCEEDED(hr) ? 0 : throw hr;

hr=pIXMLHTTPRequest->send(bstrString);
SUCCEEDED(hr) ? 0 : throw hr;

bstrString=pIXMLHTTPRequest->responseText;

MessageBox(_bstr_t(bstrString), _T("Results"), MB_OK);

if(bstrString)
{
::SysFreeString(bstrString);
bstrString = NULL;
}

} catch (...) {
MessageBox(_T("Exception occurred"), _T("Error"), MB_OK);
if(bstrString)
::SysFreeString(bstrString);
}

If some one can provide some sample to achive this functionality in VC++ will be helpful.

Re: XML Post from VC++

Ravi Bhavnani31-May-03 13:34

Ravi Bhavnani

31-May-03 13:34

See my WebResourceProvider[^] article for examples of how to post an HTTP query (and get its response). Specifically, check out the zip code decoder example.

/ravi

Let's put "civil" back in "civilization"
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ravib@ravib.com

Please Help Me

Nazar Hussain31-May-03 12:12

Nazar Hussain

31-May-03 12:12

Please help me in improveing my Programing Skills.

nhb

Re: Please Help Me

Anna-Jayne Metcalfe2-Jun-03 0:10

Anna-Jayne Metcalfe

2-Jun-03 0:10

Work your way through the tutorials here and on MSDN. Oh and get some good books.

If that doesn't help, go on a Training Course.

If that doesn't help, maybe this isn't the career for you.

Anna Rose | [Rose]

Homepage | My life in tears

"Be yourself - not what others think you should be"
- Marcia Graesch

"Anna's just a sexy-looking lesbian tart"
- A friend, trying to wind me up. It didn't work.

Trouble with resource IDs? Try the Resource ID Organiser Visual C++ Add-In

Re: Please Help Me

Anonymous2-Jun-03 12:03

Anonymous

2-Jun-03 12:03

I am currently reading in B.C.S.Hons form Virtual Universty. But i not satisfied from that. I want to do gaem programming but here in Pakistan Multan no institue is offering for that, even in all Pakistan. Also i have visit the Libraries and Markets but I have got no book for it. If u think that books can take me up, then please send me a good prescription ,and if it possible send me the books also.
Khuda Hafiz (Bye)
Nazar Hussain

Combo boxes

Zak_31-May-03 7:09

Zak_

31-May-03 7:09

Hi,

I'm just converting from Visual Basic to Visual C++ so please forgive me if I come across as a dumb ass Smile | :)

. At the moment I'm getting used to Dialogs using messages etc. My question is this - When you press the little button on the combo-box (causing CBN_DROPDOWN message), do you have to write the code that shows the available selections youreself? I'm used to having this done for me Smile | :)

. If you don't, does somebody know why no available selections come up when I press the button on my app?

Thanks in advance.

Zak

Re: Combo boxes

Jan van den Baard31-May-03 7:33

Jan van den Baard

31-May-03 7:33

You probably need to size the list. This is done by clicking on the drop-down rrow of the combobox in de resource editor. Then you can change the combobox it's height. Clicking the drop-down arrow again wil resume to normal sizing of the combobox control.

- Jan

We are the all singing, all dancing crap of the world. - Tyler Durden

Re: Combo boxes

Zak_1-Jun-03 5:53

Zak_

1-Jun-03 5:53

Ok thats great thanks. I wouldn't have been able to see my strings. But no strings are still showing Frown | :(

This is my code to add a string to the list -

char TestString[] = TEXT("Test");
SendDlgItemMessage(hWnd, IDC_ADAPTER, CB_ADDSTRING, 0L, (LPARAM)(LPCTSTR)&TestString);

There must be something wrong with this - any ideas.

Thanks again

Zak

Re: Combo boxes

Jan van den Baard1-Jun-03 19:43

Jan van den Baard

1-Jun-03 19:43

Zak_ wrote:
char TestString[] = TEXT("Test");
SendDlgItemMessage(hWnd, IDC_ADAPTER, CB_ADDSTRING, 0L, (LPARAM)(LPCTSTR)&TestString);

There must be something wrong with this - any ideas.

Try it like this:

SendDlgItemMessage(hWnd, IDC_ADAPTER, CB_ADDSTRING, 0L, (LPARAM)(LPCTSTR)TestString);

Your code adds a pointer to a pointer to a 0-terminated string.

- Jan

We are the all singing, all dancing crap of the world. - Tyler Durden

Problems with MFC (Without wizard)

Bob Stanneveld31-May-03 6:39

Bob Stanneveld

31-May-03 6:39

Hello,

I don't like wizards, so I decided to things on my own. I set up a project with a formview. I didn't do anything out of the ordinary, but the CWnd::Create() method just won't be called!
Can anyone please tell me where that method is called and what I have to do for that?

thanks

Re: Problems with MFC (Without wizard)

Vikram A Punathambekar31-May-03 8:51

Vikram A Punathambekar

31-May-03 8:51

Give us the details, pal, and we'll be glad to help you. Why don't you post (part of) your code?

HINT: Check the return value of Create() and see if it returns 0 - if it does, something's terribly wrong.

Hope this helps (give the code, though) Smile | :)

,

Vikram.
-----------------------------
My site due for a massive update.

"Good lord you yanks are getting worse than a defensive VB developer at a C++ conference." - Paul Watson in the Lounge, 31 May 2003.

"Do not give redundant error messages again and again." - A classmate of mine, while giving a class talk on error detection in compiler design.

Re: Problems with MFC (Without wizard)

Bob Stanneveld31-May-03 9:00

Bob Stanneveld

31-May-03 9:00

Hi,

I just don't know where to call Create(), I can't even find it in the wizards generated code!

regards,

Re: Problems with MFC (Without wizard)

Vikram A Punathambekar31-May-03 9:13

Vikram A Punathambekar

31-May-03 9:13

iumentum wrote:
I just don't know where to call Create()

You should do it typically (but not always) from OnCreate() in the class that you derive from CWnd or CFrameWnd.

iumentum wrote:
I can't even find it in the wizards generated code

AFAIK, the wizard has no use for this. You'll have to enter it manually. Don't forget to check the return value.

TIP: Get MSDN, and a good book. I'd recommend "Programming Windows with MFC" by Jeff Prosise.

Vikram.
-----------------------------
My site due for a massive update.

"Good lord you yanks are getting worse than a defensive VB developer at a C++ conference." - Paul Watson in the Lounge, 31 May 2003.

"Do not give redundant error messages again and again." - A classmate of mine, while giving a class talk on error detection in compiler design.

List Box Style

georgiek5031-May-03 6:00

georgiek50

31-May-03 6:00

What is the necessary style the a list box must have to display characters such as this correctly: å, ä, ö, Å, Ä

Or is it just a matter of Windows regional settings?

Re: List Box Style

Ravi Bhavnani31-May-03 8:47

Ravi Bhavnani

31-May-03 8:47

I think the only requirement is that you set its font to one that's capable of displaying these chars. Arial seems like a good bet, but I suspect Tahoma (the now-standard Microsoft font) would also work.

/ravi

Let's put "civil" back in "civilization"
Home | Articles | Freeware | Music
ravib@ravib.com

CButton question

rpadrela31-May-03 5:26

rpadrela

31-May-03 5:26

I want a button to be drawn fully red, do i need to create my own button class ? Owner-draw button is the way to go ? If so, can you point me too any good article that talks about it ?

Thanks

Re: CButton question

valikac31-May-03 7:01

valikac

31-May-03 7:01

One solution is ownerdraw via WM_CTLCOLOR.

Kuphryn

Re: CButton question

Joan M1-Jun-03 21:01

Joan M

1-Jun-03 21:01

You can also take a look here in CP at the Button articles in order to find out some classes already done... CButton ST is a good class...

HTH...

How can I terminate another application?

ATC31-May-03 4:13

ATC

31-May-03 4:13

Hi,

I have a VC++ application that launches another application in Run Time

<br />
	char* pszFileName = "c:\\NewApplication.exe";<br />
	spawnl( _P_NOWAIT, pszFileName, pszFileName,NULL);<br />

It works fine, but I could not find another command to terminate that application (NewApplication.exe) in Run Time

Anyone can help me?

Thanks

Re: How can I terminate another application?

skaanji31-May-03 6:09

skaanji

31-May-03 6:09

Use TerminateProcess(HANDLE hProcess,UINT uExitCode);

Re: How can I terminate another application?

Neville Franks31-May-03 12:39

Neville Franks

31-May-03 12:39

skaanji wrote:
Use TerminateProcess(HANDLE hProcess,UINT uExitCode);

No, No, No, No, No, unless you want the user to loose all the work they've done.

To quote the MS Docs:
The TerminateProcess function is used to unconditionally cause a process to exit. Use it only in extreme circumstances.

Please be very carefull about what you you suggest to people here.

Neville Franks, Author of ED for Windows. Free Trial at www.getsoft.com

Re: How can I terminate another application?

ATC1-Jun-03 5:09

ATC

1-Jun-03 5:09