How do you write a method/message with multiple parameters?
EDIT: Like multiple parameters for a single method/message, I mean.
You can write the declaration as such:
- (void) drawRoundedRect:(NSRect)aRect inView:(NSView *)aView withColor:(NSColor *)color fill:(BOOL)fill
The subsequent call (with 4 parameters) could look like:
[self drawRoundedRect:rect inView:self withColor:[NSColor greenColor] fill:YES];
rect is a previously defined NSRect,
self is the NSView the method is called from, an
NSColor object obtained from a nested method call, and the constant boolean value