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Hello everybody,
I am developing a Browser Help Object in IE and encounter some problems:
- Get data sent by POST method from an URL.
- Send data to an URL by POST method.
How can we accomplish that? Do you have any ideas or suggestions?
Thanks.
Lan hue sau ai lan hue heo
Lan hue sau doi trong heo ngoai tuoi
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Hi,
I guess you can get the data sent by POST method in DocumentComplete/
DownloadComplete events of the IE.
In addition to this you have to do some digging on interfaces IHTML*...
Hope this would help...
Cheers,
Vishal
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nmhuy wrote:
Get data sent by POST method from an URL.
You can retrieve the data sent by POST before sending it to the Web Server. This article[^] clarifies it quite a lot.
nmhuy wrote:
Send data to an URL by POST method.
To achieve this, you have to build your page with aform[^] (type POST defined)with all the fields you want to send.
<FORM action="http://somesite.com/prog/adduser" method="post"><br />
...form contents...<br />
</FORM><br />
In the "action" field you have to insert the URL where you want to send the data with the method defined in the field "method" (POST).
I hope it helps,
Marc Soleda.
... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.
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Send data to an URL by POST method.
I want the BHO send data automatically to an URL by POST method. In case of GET method, the BHO can easily send data to an URL by using the Navigate method of the IWebBrowser (e.g MyWebBrowser.Navigate2("http://...?data1=abc&data2=xyz"). But how can we send data an URL in case of POST method?Thanks.
Lan hue sau ai lan hue heo
Lan hue sau doi trong heo ngoai tuoi
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nmhuy wrote:
I want the BHO send data automatically to an URL by POST method
Create a function on JavaScript or VBScript inside your HTML code that submits the form and make this JS function available from the VC++ code to call it when you decide (automatically or not).
To do this look for information about CHtmlView and its method GetScript()->Invoke().
Marc Soleda.
... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.
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Take a look to these good articles. They'll help you to perform JS calls from VC++:
Web Gui[^] or JavaScript calls from C++[^]
Marc Soleda.
... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.
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I need to do something like a network monitoring tool but would like to keep it simple. I just need to block/allow certain ip addresses. Anyone can point me out what C++/C# APIs/classes i should be looking into? Thanks.
<font=arial>Weiye Chen
Life is hard, yet we are made of flesh...
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Thanks.
<font=arial>Weiye Chen
Life is hard, yet we are made of flesh...
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Hi Chen,
Weiye Chen wrote:
I just need to block/allow certain ip addresse
you can check article, i am sure it will suit your requirement:-
http://www.codeproject.com/internet/smfirewall.asp[^]
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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Thanks. I'll check that out.
<font=arial>Weiye Chen
Life is hard, yet we are made of flesh...
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Hi all,
I have a trouble with CStringArray class, it is so difficult to me that I'd like to get help from you.
My project has a DLL and a Exe file. In the DLL, threre is a function that used to get a list of strings, I use CStringArray to get the list strings.
For example :
__declspec( dllexport ) void GetCStringArr(CStringArray* pCStringArr)
{
CString cstrText;
for (int i=0; i< 100;i++)
{
cstrText.Format("%d",i);
pCStringArr->SetAtGrow(i,cstrText);
}
}
In the application project, I call GetCStringArr function to get the list string, after calling GetCStringArr function, I have the needed list string and can access all strings in the list(CStringArray),everthing is OK but when I release the CStringArray object, my project has a exception :
// m_ArrText is a CStringArray object, it is a member variant of //CTestCstringArrDlg class
void CTestCstringArrDlg::OnGetButton()
{
GetCStringArr(&m_ArrText);
for (int i=0;i<10;i++)
{
MessageBox(m_ArrText.GetAt(i));
}
CTestCstringArrDlg.RemoveAll(); // This line code has exception
}
If I declare, use and release CStringArray variant in only application or only in Dll, everything is OK. I don't known why when I declare CStringArray in App but add it's item string in Dll, I can get all Item string in CStringArray but when I release CStringArray I alway have problem.
Please help me to solve the problem!
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Objects allocated within the DLL should only be released by the DLL. Expose a new method in your DLL that frees up a CStringArray and call that on m_ArrText.
/ravi
My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com
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Thanks for your help, I have tried to do as your comment, it is useful for me and is my need.
Thank you very much.
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It might be because of the EXE and DLL being built with different options or defines...
Does sizeof(CString) give the same result in both the EXE and DLL?
--
jlr
http://jlamas.blogspot.com/[^]
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Make sure the DLL is an MFC extension DLL and that the App uses MFC as a shared DLL. This way you will be able to allocate/release memory and objects wherever you want.
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Hello gurus,
I have a C question this time. An easy one 
I wish to write a function that modifies a 2D array of unsigned char.
My array looks like this:
unsigned char map[0x40][0x20];
I call an update function:
UpdateMap(map, nLevel);
and the map should be modified. But I have forgotten hwo to write the header of the UpdateMap function. Can some one remind me please?
its code is simply like that:
<br />
void UpdateMap([I have forgotten how to write the header])<br />
{<br />
int i=0, j=0;<br />
for (i=0; i<0x20; i++)<br />
for (j=0; j<0x20; j++)<br />
map[i][j]=map[i+0x20][j]=g_levelMaps[i+(nLevel*0x20)][j];<br />
}<br />
<br />
Thanks for the help.
Best regards.
Fred.
There is no spoon.
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It's an unsigned char **.
Christian Graus - Microsoft MVP - C++
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Hi Christian,
That's what I have done, but I have a warning:
"Parsing argument 1 of 'UpdateMap' from incompatible pointer type"
That's why I have posted a new thread
I have declared my array as an unsigned char and also in the header of the function.
fred
There is no spoon.
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I think that when I did it, I declared an unsigned char ** and then called new on it to build the array. But that's what it is, you can't pass an array as such AFAIK.
Christian Graus - Microsoft MVP - C++
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ok, my array is not initialized by the new operator. It is decalred like a standard array:
unsigned char map[0x40][0x20]
fred
There is no spoon.
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You can code it as follows:
void UpdateMap(unsigned char map[0x40][0x20])
{
int i=0, j=0;
for (i=0; i<0x20; i++)
for (j=0; j<0x20; j++)
map[i][j]=map[i+0x20][j]=g_levelMaps[i+(nLevel*0x20)][j];
}
void test()
{
unsigned char map[0x40][0x20];
UpdateMap(map);
}
Hope that helps,
--
jlr
http://jlamas.blogspot.com/[^]
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It works if you specify the array bounds ? Cool.
Christian Graus - Microsoft MVP - C++
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Christian Graus wrote:
It works if you specify the array bounds ? Cool.
It does work
For an array of n dimensions you need to specify at least (n-1) bounds, because otherwise the compiler has no way to calc the offset for a given element. For example, if you have int matrix[3][5] (3 rows, 5 columns), then the element at matrix[i][j] (row i, column j), can be computed as *(matrix+(i*5)+j), that is, increment the matrix pointer so as to skip i rows of 5 elements each, then skip j elements, and then dereference the resulting pointer.
As can be seen in the example above, the number of rows isn't strictly needed, though (just like the number of elements isn't actually needed for an array of only one dimension). In fact one could even write a function that received as its argument a matrix of unbounded rows and n columns.
void test(int matrix[][5])
{
matrix[2][3] = 1;
}
void main()
{
int matrix[3][5];
test(matrix);
}
If on the other hand the test function received the matrix as an int**, there'd be no way to know how many elements to skip for each row. The test function would compile, but the main function not, because int[3][5] is not the same as int**, the latter being a pointer to a pointer to an int [1]. In fact if we changed the test function to
void test(int** matrix)
{
matrix[2][3] = 1;
}
The expression matrix[2][3] would compile to something entirely different than before. With matrix defined as int** an expression matrix[i][j] would translate to *((*(map+i))+j), that is in the example, incrementing the matrix pointer by 2, dereferencing the result, using that value as a pointer, incrementing it by 3 and then dereferencing that! To keep that working as before, we'd need to also alter the main function as follows:
void main()
{
int matrix[3][5];
int* rows[3];
for (int i = 0; i < 3; i++)
rows[i] = &matrix[i][0];
test(rows);
}
There's still one additional correct way of writing the code, which can be used if one doesn't want test to be restricted to a particular number of columns:
void test(int* matrix, int nCols)
{
matrix[2*nCols+3] = 1;
}
void main()
{
int matrix[3][5];
test(matrix[0],5);
}
[1] Depending on how it's used, it can also be seen as a pointer to an array of pointers to ints, or as a pointer to a pointer to an array of ints, or as a pointer to an array of pointers to arrays of ints.
--
jlr
http://jlamas.blogspot.com/[^]
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Hi,
Thanks for the trick
As my array will be modified by other functions, I simply put the array in global and the functions modify it and it works that way
Thanks.
Fred
There is no spoon.
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