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WS_CHILD|LVS_REPORT|LVS_SINGLESEL|LVS_EX_GRIDLINES|LVS_EX_FULLROWSELECT|LVS_EX_DOUBLEBUFFER|WS_VISIBLE
Still no changes everything is still the same!
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You need to change these settings with something like :
SendMessage(hWndView,
LVM_SETEXTENDEDLISTVIEWSTYLE,
LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES,
LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES
);
in your view initialization code. Take a look at the MSDN documentation for LVM_SETEXTENDEDLISTVIEWSTYLE.
It's time for a new signature.
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Hy . I want to build my CSmtp client MFC compatible class , and for that I need to call gethostbyname , but here I'm stuck ... because I use CString , and function parameter is 'const char FAR *' ... my questions is : how can I convert CString to const char * ?
P.S. If you know some SMTP client tutorial , it will be very good ! Thank you !
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You will have to do no conversion. CString already provides you with the LPCTSTR operator!
“Follow your bliss.” – Joseph Campbell
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Ok , and how to put LPCTSTR operator in the function argument ? Because I try in some dummy way , but it failed ... can you draw an little code sample ?
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How did you called? Can you put your code here so we can see what's going on?
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P.S.Here is my trial :
LPHOSTENT lpHostEnt = gethostbyname(sServer.GetBuffer(1 + sServer.GetLength()));
sServer.ReleaseBuffer();
but seems not working ...
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short nProtocolPort;
LPHOSTENT lpHostEnt;
LPSERVENT lpServEnt;
SOCKADDR_IN sockAddr;
SOCKET hServerSocket = INVALID_SOCKET;
struct in_addr addr;
sTemp = sServer;
sTemp = sTemp.Left(1);
if(atoi(sTemp) == 0)
{
lpHostEnt = gethostbyname(sServer.GetBuffer(1 + sServer.GetLength()));
sServer.ReleaseBuffer();
}
else
{
addr.s_addr = inet_addr(sServer.GetBuffer(1 + sServer.GetLength()));
sServer.ReleaseBuffer();
if(addr.s_addr == INADDR_NONE)
{
m_nError = CSMTP_BAD_IPV4_ADDR;
return INVALID_SOCKET;
}
else lpHostEnt = gethostbyaddr((char *)&addr,4,AF_INET);
}
if(lpHostEnt == NULL)AfxMessageBox("lpHostEnd is NULL !");
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Of course
sServer = "smtp.gmail.com"
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Do not call GetBuffer() unless you are modifying the internal buffer.
CString sServer;
LPHOSTENT lpHostEnt = gethostbyname(sServer);
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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I use the following to declare, initializing, and delete arrays. Please check if I am doing OK? Thanks!
float* tim_var[1000];
for (i=0;i<1000;i++)
{
tim_var[i]=new float[6];
}
//
for(i=0;i<1000;i++) {
for(int j=0;j<6;j++)
{
tim_var[i][j]=0;
}
}
//
...........
//
delete [] *tim_var;
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A rule of thumb: for each call to new there needs to be a corresponding delete. In your sample you call new within a loop (1000 times) and have only one delete.
Can you use STL or some other containers instead?
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Thanks.
Should I put a loop of 1000 to delete ? If so could you give me
the correct code to do so. I am not sure how to put code with a loop to delete.
Tahnks again.
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for (i=0;i<1000;i++)
{
delete tim_var[i];
}
and as Nemanja suggested, can't you use the STL container classes ? This will save you a lot of troubles in the future.
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tim_var [][] is a two dimensional array.
float* tim_var[1000];
for (i=0;i<1000;i++)
{
tim_var[i]=new float[6];
}
//
for(i=0;i<1000;i++) {
for(int j=0;j<6;j++)
{
tim_var[i][j]=0;
}
}
//
So the delete loop you gave me is compiled. So this means the two dimensional array is deleted for 6x1000 variable memories.
Thanks
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mrby123 wrote: tim_var [][] is a two dimensional array.
float* tim_var[1000];
But you've only shown one of those dimensions. 
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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This was code I put in the beginning to show a two dimensional array
float* tim_var[1000];
for (i=0;i<1000;i++)
{
tim_var[i]=new float[6];
}
//
for(i=0;i<1000;i++) {
for(int j=0;j<6;j++)
{
tim_var[i][j]=0;
}
}
//
...........
//
delete [] *tim_var;
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mrby123 wrote: This was code I put in the beginning to show a two dimensional array
float* tim_var[1000];
But tim_var only has one dimension: 1000.
mrby123 wrote: delete [] *tim_var;
Should be:
for (i = 0; i < 1000; i++)
delete [] tim_var[i];
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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Thanks.
tim_var has two dimensions: tim_var[1000][6]
Your code below compiled OK:
for (i = 0; i < 1000; i++)
delete [] tim_var[i];
But the following code also compiled:
for (i = 0; i < 1000; i++)
delete tim_var[i];
Which one delete the two dimensional array tim_var[1000][6] ?
Please help
thanks
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mrby123 wrote: tim_var has two dimensions: tim_var[1000][6]
No, tim_var has one dimension (1000), whereas tim_var[0...999] also has one dimension (6). The difference is subtle but important nonetheless.
mrby123 wrote: But the following code also compiled:
for (i = 0; i < 1000; i++)
delete tim_var[i];
It will compile but will result in a memory leak.
mrby123 wrote: Which one delete the two dimensional array tim_var[1000][6] ?
Neither, since that is a stack-based notation.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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Hi Cédric,
To delete the two dimensional array tim_var[1000][6], you please comment:
for (i=0;i<1000;i++)
{
delete tim_var[i];
}
or for (i=0;i<1000;i++)
{
delete[] tim_var[i];
}
Thanks
time_var[1000][6] was declared:
float* tim_var[1000];
for (i=0;i<1000;i++)
{
tim_var[i]=new float[6];
}
//
for(i=0;i<1000;i++) {
for(int j=0;j<6;j++)
{
tim_var[i][j]=0;
}
}
//
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There's no need to write such error-prone code (unless you're learning about how things work). Please use an STL container[^] if you're using C++.
“Follow your bliss.” – Joseph Campbell
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Thank you for your comments. Could you give me the code for STL container ? I am a learner.
Thanks for lighting me up.
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I already provided you a link. Click on each container class there and the page would contain an example at the bottom. You might want to search Google for more examples and tutorials.
“Follow your bliss.” – Joseph Campbell
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mrby123 wrote: Should I put a loop of 1000 to delete ?
Yes.
mrby123 wrote: I am not sure how to put code with a loop to delete.
As Nemanja suggested, you should call delete on every pointer that was assigned by means of new.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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