objective-c runtime bindings provide macro objcr allow you write message sending style code
proc main() =
objcr:
[NSApplication sharedApplication]
if NSApp.isNil:
echo "Failed to initialized NSApplication... terminating..."
return
[NSApp setActivationPolicy: NSApplicationActivationPolicyRegular]
var menuBar = [[NSMenu alloc]init]
var appMenuItem = [[NSMenuItem alloc]init]
var appMenu = [[NSMenu alloc]init]
[appMenu addItemWithTitle: @"Quit", action: "terminate:", keyEquivalent: @"q"]
[appMenuItem setSubmenu: appMenu]
[menuBar addItem: appMenuItem]
[NSApp setMainMenu: menuBar]
var mainWindow = [NSWindow alloc]
var rect = NSMakeRect(0, 0, 200, 200)
[mainWindow initWithContentRect: rect, styleMask: NSWindowStyleMaskTitled or NSWindowStyleMaskClosable or NSWindowStyleMaskMiniaturizable or NSWindowStyleMaskResizable, backing: NSBackingStoreBuffered,
`defer`: false]
var pos = NSMakePoint(20,20)
[mainWindow cascadeTopLeftFromPoint: pos]
[mainWindow setTitle: "Hello"]
[mainWindow makeKeyAndOrderFront: NSApp]
[NSApp activateIgnoringOtherApps: true]
[NSApp run]
when isMainModule:
main()