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Guessing you are using ISpStream::BindToFile function to associate the input audio stream with a file, maybe you can try ISpStream::SetBaseStream to associate it with an in-memory stream created with CreateStreamOnHGlobal?
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Hi,
I have an application in which I am loading data from a database (in this specific case a large database) into a grid in my GUI. So, I open the query into a recordset using the Open method as follows:
sQuery.Format(_T("SELECT DISTINCT D.fieldA, DC.fieldB
from TableDC DC, TableD D
WHERE D.fieldA = DC.fieldA AND D.No = '3’
ORDER BY DC.fieldB"));
if(!Open(AFX_DB_USE_DEFAULT_TYPE, sQuery, CRecordset::readOnly))
{
...
}
The problem is that the statement that contains the call to the Open method sometimes takes about 2 minutes to execute (and sometimes works ok).
Anyone have any idea of why this happens? And maybe an idea of how I can fix it (speed it up)?
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Are the TableD.fieldA and TableD.No fields indexed?
"The largest fire starts but with the smallest spark." - David Crow
"Judge not by the eye but by the heart." - Native American Proverb
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I don't think they are. Not in table D at least.
What exactly do you mean by indexed?
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SWDevil wrote: What exactly do you mean by indexed?
See here.
"The largest fire starts but with the smallest spark." - David Crow
"Judge not by the eye but by the heart." - Native American Proverb
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ok - I think I confused indexes and primary keys 
do you know how I can see in SQL server if the fields are indexed or not?
And how can I use indexes on these fields to speed the execution of the open method?
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SWDevil wrote: do you know how I can see in SQL server if the fields are indexed or not?
Have you considered the Index Tuning Wizard? There's also SHOWPLAN_TEXT and SHOWPLAN_ALL opptions.
"The largest fire starts but with the smallest spark." - David Crow
"Judge not by the eye but by the heart." - Native American Proverb
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As I now, execution of SQL queries can be speeded up by defining appropriate indexes in the database definition. I think you have to add indexes for TableD.fieldA, TableDC.fieldA, TableD.No and TableDC.fieldB. This can be done with the application you are using for database management.
In additions, use the DISTINCT statement only if is realy required.
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Do you know how to add indexes to fields in SQL Server?
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SWDevil wrote: Do you know how to add indexes to fields in SQL Server?
Use the CREATE INDEX command.
"The largest fire starts but with the smallest spark." - David Crow
"Judge not by the eye but by the heart." - Native American Proverb
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Use the index tuning wizard in the Query Analyzer. This will give you the right index creation scripts optimized for your select statement.
cheers...milton kb.
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ShowWindow(SW_HIDE) will hide the window and in my case , make the windows of other applications to the foreground and activate them. How can I restore it programatically when my application is not having focus.. Does my application have to be a service..in which case any short cut key will make it active again?
row
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ROWALI wrote: How can I restore it programatically when my application is not having focus
You need a handle or a pointer on your window, and then use ShowWindow(SW_SHOW).
BUT the question is : what is the reason for your window to be showed again ? According to the answer, you'll find the method to bring the window back (e.g. do it from another app -- a hook, or from within your app).
~RaGE();
I think words like 'destiny' are a way of trying to find order where none exists. - Christian Graus
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Just an idea...
You could always use RegisterHotKey() and set a hotkey activation. Then in your dialog, you would need to handle the WM_HOTKEY message, and do ShowWindow(SW_SHOW) and make your dialog visible again.
or
You could add a system tray icon, and have the user click the tray icon to show the dialog again.
I would suggest searching codeproject, there are many samples of both.
-Randor
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After you ShowWindow(SW_NORMAL)Use SetWindowPos with HWND_NOTOPMOST for the "insert after" parameter.
byebye..
<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">--[![Jig | [Dance]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/jig.gif) ]--
[My Current Status]
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If I want to send some text,which includes some char terminator,'\0',Which is the better way to calculate the len of the buffer.
send(conn,buff,strlen(buff),0)
I think It is not right to use strlen.It will terminate at first \0,if the buff like {'a',0x0002,'buff').Should I replace strlen(buff) with 7,which is the exact length of text I want send.
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strlen is OK
Appu..
"If you judge people, you have no time to love them."
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No, strlen(buff) will omit the NULL terminator. The poster clearly defined that he wanted to send the NULL in the tcp packet.
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I mean strlen function is OK for this case.
Yaa , you are right.if at all, u want to send all the characters including NULL u need to pass strlen(buff) + 1;
Check this sample:
<br />
#include <stdio.h><br />
#include <string.h><br />
<br />
int main ()<br />
{<br />
char szInput[256];<br />
printf ("Enter a sentence: ");<br />
gets (szInput);<br />
printf ("Sentence entered is %u characters long\n",strlen(szInput));<br />
return 0;<br />
}<br />
<br />
Output:<br />
Enter sentence: just testing<br />
Sentence entered is 12 characters long
Appu..
"If you judge people, you have no time to love them."
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if char buff[]={'a','b',0x00,'c','d','e',0x02,0x03,0x00,'g'}
strlen(buff)+1=3
but I need to send 10 char.So I think strlen is not right in this case.
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strlen(buff) +1;
That will include the NULL character.
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If your buffer is initialized at declaration, like this:
char buffer[] = {'a', 'b', 0x00, 'c', 'd', 0};
then you can use sizeof(buffer) expression to count the size.
Otherwise, if the buffer is built dynamically, I think you have to have a counter of values added to buffer. After each addition, update that counter. Then use it before sending.
It is easier to work with dynamic arrays using std::vector class from STL.
If your problem is caused by Unicode strings that may contain null bytes, then instead of strlen function use wcslen and then multiply the result with two before sending.
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send me as early as possible
#sankar#
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sankarRao wrote: send me as early as possible
Be polite while asking Questions my dear friend.
Appu..
"If you judge people, you have no time to love them."
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