Undeclared Identifier when trying to use an object
I created an object array when a button is clicked. When I try to use any of the objects in another function, it is saying that it's an undeclared identifier.
What do I need to do to make sure I can use 'picBlocks[k]' anywhere else in my code?
Code:
Object Array created here:
public: System::Void menuFile_Click(...)
{
PictureBox* picBlocks[] = new PictureBox*[5];
for(int i = 0; i < 5; i++)
{
picBlocks[i] = new PictureBox();
pnlGameField->Controls->Add(picBlocks[i]);
}
}
Trying to access object here in a different function:
bool OtherFunction()
{
if(picBlocks[0] = xxxx) <---says picBlocks is undeclared
{
Blah Blah Blah
}
}
I still new to programming, so the more details, the better. I was told previously that I needed to add picBlocks[] to a class. I don't really know how to do that.
Thanks for the help!
Aaron
Re: Undeclared Identifier when trying to use an object
Quote:
What do I need to do to make sure I can use 'picBlocks[k]' anywhere else in my code?
Declare the variable outside of the functions body:
Code:
class YourClass
{
public:
// declared at class scope (can be accessed from all member functions)
int i;
void functionA()
{
i = 5; // ok
int j; // declared in function scope, can only be accessed from this function
j = 5; // ok;
}
void functionB()
{
i = 5; // ok
j = 5; // not ok!
}
};
- petter
Re: Undeclared Identifier when trying to use an object
What about reading a good C++ book?