C / C++ / MFC

pArray.Add((void*) OnFunctionkeysCallsate());

Chuck O'Toole wrote:

pArray.Add((void*) OnFunctionkeysCallsate());

Chuck O'Toole wrote:

Sorry, I don't see any '&' in the original post and it does not appear to be edited. Which '&' are you talking about?

void Function1(int i)
{
    cout<<"Hello in Function 1 Number " <<i;
}


void function2(int i)
{
    cout<<"Hello in Function 2 Number " <<i;
}
typedef void (*MySingleArgFunction) (int);

///Main Function
vector<MySingleArgFunction> vecFuncPtr;
	vector<MySingleArgFunction>::iterator it;
	vecFuncPtr.push_back(&Function1);
	vecFuncPtr.push_back(&function2);


	it=vecFuncPtr.begin();

	while(it!=vecFuncPtr.end())
	{
		(*it)(20);
		it++;
	}

Vaclav_Sal wrote:

pArray.Add((void*) (OnFunctionkeysCallsate));
               pArray.Add((void) (OnWindowNewlogview));

Vaclav_Sal wrote:

have already tried   adding &. The compiler does not like it.
 
          pArray.Add((void*)&OnFunctionkeysCallsate);
 
And here is the error message

jkirkerx wrote:

I was hoping it would create a single object

uaListBoxPtrArray = new UA_Listbox*[dwCount];
uaListBoxPtrArray[0] = new UA_Listbox;
...
uaListBoxPtrArray[1] = new UA_Listbox;

Richard MacCutchan wrote:

create an array of object pointers

Richard MacCutchan wrote:

create two new objects which can be referenced by the pointers in the array

UA_Listbox             // declares a UA_Listbox
UA_Listbox*            // declares a pointer to a UA_Listbox
UA_Listbox*[dwCount]   // declares an array of pointers, of length dwCount
uaListBoxPtrArray      // declares an array a variable

uaListBoxPtrArray = new UA_Listbox*[dwCount];

// Create an Class Array Structure to hold the values
UA_Listbox *uaListBoxArray;
uaListBoxArray = new UA_Listbox[dwCount];
 
uaListBoxArray[0].iUserID = 47;
uaListBoxArray[0].szFirstName = L"Tim";
uaListBoxArray[0].szLastName = L"Parker";
uaListBoxArray[0].szAccountName = L"tparker";
 
uaListBoxArray[1].iUserID = 48;
uaListBoxArray[1].szFirstName = L"Joe";
uaListBoxArray[1].szLastName = L"Smoe";
uaListBoxArray[1].szAccountName = L"jsmoe";

// ... do something

delete [] uaListBoxArray; // clean up

if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS) {			
												
INT			i = 0;
INT			pzUserID; <- This should of been an array element
WCHAR			pzFirstName[cbFirstName]; <- This should of been an array element
WCHAR			pzLastName[cbLastName]; <- This should of been an array element
WCHAR			pzUserName[cbUserName]; <- This should of been an array element
						
while (SQLFetch(hstmt) == SQL_SUCCESS) {
	// Get Data from the Table
	SQLGetData(hstmt, 1, SQL_C_ULONG, &pzUserID, 0, NULL );
	SQLGetData(hstmt, 2, SQL_C_WCHAR, &pzFirstName, cbFirstName, NULL );
	SQLGetData(hstmt, 3, SQL_C_WCHAR, &pzLastName, cbLastName, NULL );
	SQLGetData(hstmt, 4, SQL_C_WCHAR, &pzUserName, cbUserName, NULL );

        // Original -I used the pointers above to populate the array at this point, but I should of just went direct into the array, instead of using the temporary pointers in between. But in theory once I free the SQL handle, the pointers are gone. So Perhaps in the future, I need to create multi part functions, one that Initializes, one that gets the data and packages it, and one that closes the handle, passing the handle to each function until complete.

}