macOS Object Arrays (Equivalent of VB6 Load/Unload)

[adimex]

Hello all,
I am trying to do something like this in Cocoa:

User clicks in the window and my Object (in this case, a UserControl with a drop pin appears where the user clicked). If the user clicks on the drop pin, another window will popup with information etc...

How would I go about replicating a graphical object? Obj-C objects are piece of cake (UserControl *UC = [[UserControl alloc] init];...) but I can't seem to make it happen with graphical objects.

VB Codes looks something like this:

private sub form1_mouseDown(x as int, y as int)
dim i as integer
i = userControl.count

load userControl(i)
userControl(i).move x, y
end sub

thanks!!!
D.

 

[Detrius]

Well, technically, graphical objects *are* Objective-C objects, so you do the same thing, but there's more to displaying a graphical object than simply creating it.

	IBOutlet NSView * m_Output;

...

	NSTextField * pOutput = nil;

	NSRect frame = { { 0 } };
	pOutput = [[NSTextField [COLOR="Blue"]alloc[/COLOR]] [COLOR="blue"]init[/COLOR]WithFrame: frame];
			
	if ( pOutput )
	{
		[pOutput setStringValue: @"A string"];
		[pOutput autorelease];
	}

...

	[pOutput retain];
	
	[m_ParentView addSubview: pOutput];
	[m_ParentView setAutoresizesSubviews: YES];
	[pOutput setAutoresizingMask: ( NSViewWidthSizable | NSViewHeightSizable )];
	
	[m_ParentView setFrameSize: [m_ParentView frame].size ];
	[m_ParentView setNeedsDisplay: YES];
	[m_ParentView setNeedsDisplay: YES];

...

That should give you an idea of a few things that might need to be done to make something visible.

Of course, there's more to be done before it will be interactive as well.