Thread: Need Help. Going Insane

I have an MDI application, been developed in C++ Builder. On each child form there is an image object.
To cycle through the child forms I use a For loop.
My problem is this.
Going through the loop I can only access properties, methods and events of the form and NOT the objects on the form. How can I access the objects on the form.

Code:

for (int index = MDIChildCount - 1; index >= 0; index--)
{
   something = MDIChildren[index]............... STUCK............?????
}

What I am looking for is the pixel array of an image object on the form.
I would be greatful of any suggestions or input.

If you have an array of objects, you can access public methods and members with:

Code:

objArray[i].method();
objArray[i].member;
//or if array of pointers
objArray[i]->method();
objArray[i]->member;

If you are looking for something more specific related to windows programming using C++ Builder, you might want to try the Windows programming board.

gg

I think i'll go back to a SDI application. Not as good but it will do. Life is too short to be fn around with simple problem that are probably smacking you in the face, but you are looking at it so long you can't see the answer.



ohh...

Code:

void main(void)
{
}

does it really matter

AARGG... again a stupid thread title? I think I am going insane now...

But why does main always return an int? Don't worry, I always declare it as int and I dont mean to question you o great Polymorphic OOP, but why? Is it something to do with the operating system knowing that the process has finished?

~ Paul

C Runtime? I thought languages like Java use a runtime, but not langauges like C/C++?

Or do you mean like theres a C Runtime located in the kernel of the operating system that looks for a main function?

But if that is so, how does the OS know whats an ASM file and whats a C++ file? Would a compiled ASM file and a compiled C++ file look reliatively the same at byte-level if they are supposed to do the same thing, ie add 2 numbers?

Or is the C Runtime included inside the compiled application?

Now I'm even more confused.

~ Paul

Ohh okay, I never knew that. Thanks very much

~ Paul

PHP Code:

myMDIForm[index]->myMDIObject->ObjectProperty; 


And tell the file that will use this line to include the unit header for the file that contains myMDIForm?

Thanks for your help. But I tried that. It compiled. But during execution it crashed with pointer errors.

Try it again but make sure your pointing to objects/forms that do exist on the form and make index a number that you know will work for a test.

~ Paul

Yeah I tried

Code:

store = ChildForm[1]->imgScene->Canvas->Pixels[1][1];

And this returns a pointer error during execution.

1 is the second last form to be created.
i.e. 0 being the last and MDIChildCount - 1 being the first.