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My app requires to update software from the internet.
I need to know the number of days from last update day to current day.
one solution is using GetSystemTime().
GetSystemTime() obtains year, month and day, but how to transfer SYSTEMTIME to absolute days, so number of days between the period can be calculated easily.
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store the values in regisry and check while updating
"A winner is not one who never fails...but the one who never quits"
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hi,
I wan't to play a movie clip in an application using Visual C++.
I think it is possible. Any body can give me an idea abt this.
Dream bigger... Do bigger...Expect smaller
aji
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the easiest way is to insert a mediaplayer activex into ur project and call its funtions....
nave
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Thats i already did.
Now i want to do it without using any Active X controls.
I know there is some way to do it.
Dream bigger... Do bigger...Expect smaller
aji
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Insert Animation Control on dialog .
Add variable from it (m_AVICtrl);
add avi source to your project (IDR_AVI1);
call Open of variable :---> m_AVICtrl.Open(IDR_AVI1) ;
call Play function ---> m_AVICtrl.Play() ;
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See mci functions
whitesky
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Can you please tel some thing about the mci function...or any links????
Dream bigger... Do bigger...Expect smaller
aji
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Hey all,
I need to do this operation
float x;
int y;
int z;
x= (float)((y-z)/60);
if(x % (int)x)!= 0)
{x = (int)x +1;
}
how do i do a mod of float and int. If x is an int then, I can use % operator. But in my case I need to find out if x = 2.1 then I need to round it to 3 ; also if x= 2.6, i need to round it to 3.
How can I do this? Can anyone help? Iam using VC++6.0
Thanks in advance.
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<br />
x= (float)((y-z)/60);<br />
x=ceil(x);<br />
if(x % (int)x)!= 0)<br />
{<br />
x = (int)x +1;<br />
}<br />
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hey what happens to
ceil(x);
if x =2.0, then will it be 2.0 or 3.0?
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try this
float x = 2.1;
int n= x;
if( n < x )
{
n++;
x = n;// x will contain 3 now
}
nave
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thanks for that.
how do i print a double value? i mean the type specifier?
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Hi all . could any one show me how to use [B]Microsoft HTML Object Library [/B] in visual c++ 6 to extract data from html and populate it in listview. I have done this in visual basic 6 and i posted the code below . I be happy if an expert help me convert it to visual c++ 6 since i need it for a project that has to be done in visual c++ 6. My current visual c++ code retrives html of url and all now i need to be able to do extract the data i wanted from html and populate the listview with that data. I shown a picture of output in the pic.Thanks
code that retrives the html for me in visual c++ 6:
<br />
void CFindUserDlg::OnButton4() <br />
{<br />
<br />
HINTERNET hNet = ::InternetOpen("MSDN SurfBear",PRE_CONFIG_INTERNET_ACCESS,NULL,INTERNET_INVALID_PORT_NUMBER,0) ;<br />
HINTERNET hUrlFile = ::InternetOpenUrl(hNet,"http://www.mysite.com/Display.php",NULL,0,INTERNET_FLAG_RELOAD,0) ;<br />
<br />
char buffer[10*1024] ;<br />
<br />
DWORD dwBytesRead = 0;<br />
BOOL bRead = ::InternetReadFile(hUrlFile,buffer,sizeof(buffer),&dwBytesRead);<br />
<br />
SetDlgItemText(IDC_EDIT2,buffer);<br />
<br />
::InternetCloseHandle(hUrlFile) ;<br />
::InternetCloseHandle(hNet) ;<br />
<br />
<br />
<br />
}
visual basic 6 code:
<br />
<br />
Private Sub Command3_Click()<br />
'this function places data into listview<br />
' requires that you add a reference to the Microsoft HTML Object Library<br />
Dim mydoc As HTMLDocument<br />
Dim wombat As IHTMLElementCollection<br />
Dim lp As Long<br />
<br />
Set mydoc = New HTMLDocument<br />
<br />
'mydoc.body.innerHTML = "<html><head><p><ul><table border=1 cellpadding=4> " & _<br />
' "<tr><th>Name</th> > <th> color </th> </tr> " & _<br />
' "<tr><td>tony</td> <td>33023</td> " & _<br />
' "<tr><td>cindy</td> <td>16711935</td> " & _<br />
' "<tr><td>sarah</td> <td>3434343</td> " & _<br />
' "</table> </body></html>"<br />
<br />
mydoc.body.innerHTML = RichTextBox1.Text<br />
<br />
Set wombat = mydoc.getElementsByTagName("TR") ' Get the rows<br />
For lp = 1 To wombat.length - 1 ' Ignore first row<br />
Set LI = ListView1.ListItems.Add(lp, , wombat.Item(lp).All.Item(0).innerText)<br />
ListView1.ListItems(lp).ForeColor = wombat.Item(lp).All.Item(1).innerText<br />
LI.ListSubItems.Add , , wombat.Item(lp).All.Item(1).innerText<br />
<br />
Next<br />
End Sub
picuture of the output:
[IMG]http://i5.photobucket.com/albums/y180/method007/ListViewPop.jpg[/IMG]
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Why dont you use Regular Expression to extract data?
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well i do not know how to use it . could u show me how to extract it using either method and populate the listview.thanks
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The following program doesn't free all the memory. Can any one tell me what is wrong with the code?
Thanks.
//
wchar_t *pwcTest = L"Test";
int g_I=1000;
void AllocateMem(wchar_t ***pwcArray)
{
*pwcArray = (wchar_t**)new wchar_t*[g_I+1];
ZeroMemory(*pwcArray, sizeof(wchar_t*)*g_I+1);
for(int i=0; i<g_I; i++) {
(*pwcArray)[i] = (wchar_t*)new wchar_t[wcslen(pwcTest)+1];
wcscpy((*pwcArray)[i], pwcTest);
}
(*pwcArray)[i] = NULL;
}
void FreeArray(wchar_t **pwcDC)
{
if(pwcDC != NULL) {
for(int i=0; pwcDC[i] != NULL; i++)
delete [] pwcDC[i];
delete [] pwcDC;
}
}
int main( int argc, char *argv[ ])
{
char s[2];
printf("main:\n");
fscanf(stdin, "%s", s);
// Mem Usage (in the Windows Task Manager): 632K
wchar_t **pwcArray = NULL;
for (int i=0; i<1000; i++) {
AllocateMem(&pwcArray);
FreeArray(pwcArray);
}
printf("main: %d\n", i);
fscanf(stdin, "%s", s);
// Mem Usage: 688K (g_I=1000)
// Mem Usage: 908K (g_I=10000)
return 0;
}
//
mdexch
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I reformatted your code to make it easier for me to read, particularly since C++ (which you are using) provides references.
wchar_t *pwcTest = L"Test";
int g_I=1000;
void AllocateMem(wchar_t**& pwcArray)
{
pwcArray = new wchar_t*[g_I+1];
ZeroMemory(pwcArray, sizeof(wchar_t*) * (g_I+1) );
for(int i=0; i<g_I; i++) {
pwcArray[i] = new wchar_t[ wcslen(pwcTest) + 1 ];
wcscpy(pwcArray[i], pwcTest);
}
pwcArray[ g_I ] = NULL;
}
void FreeArray(wchar_t **pwcDC)
{
if(pwcDC != NULL) {
for(int i=0; pwcDC[i] != NULL; i++)
delete [] pwcDC[i];
delete [] pwcDC;
}
}
int main( int argc, char *argv[ ])
{
char s[2];
printf("main:\n");
fscanf(stdin, "%s", s);
wchar_t** pwcArray = NULL;
int i;
for (i=0; i<1000; i++) {
if (i%100 == 0)
fprintf(stdout, "%d\n", i);
AllocateMem(pwcArray);
FreeArray(pwcArray);
}
printf("main: %d\n", i);
fscanf(stdin, "%s", s);
return 0;
}
I don't believe my version leaks memory, though I only spent a couple minutes on this. The CRT will ask windows for memory then hold on to it for future requests, even if from your perspective you haven't currently allocated it -- or at least this is my understanding.
earl
PS: VS2005: beginning 960K, end 1000K, regardless i = {1000,10000,50000}
-- modified at 19:28 Wednesday 12th July, 2006
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Look like a CRT issue. On .Net 2003 compiler I see less memory allocation but different for different array size. May be 2005 is different.
Thanks for the input.
mdexch
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I didn't see a leak; do note that when a heap is allocated, it may not be entirely released until the CRT deinitializes. This is not a memory leak, but an optimization.
I did see a problem with your code, though:
*pwcArray = (wchar_t**)new wchar_t*[g_I+1];<br />
ZeroMemory(*pwcArray, sizeof(wchar_t*)*g_I+1);
Note that you are allocating g_I + 1. The last item is being used as a guard item. Yet when zeroing the memory, you are zeroing out 4001 bytes (when g_I is set to 1000), not 4004. You need to wrap parenthesis around g_I + 1 as follows:
ZeroMemory(*pwcArray, sizeof(wchar_t*)*(g_I+1));
I would recommend placing the wchar_t strings in a struct with a destructor and then making the array and array of these structures (or use string or CString).
Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke
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