//go:build windows

package ui

// SM_CXSCREEN / SM_CYSCREEN return the primary display size in pixels.
const (
	smCXScreen = 0
	smCYScreen = 1
)

var procGetSystemMetrics = user32.NewProc("GetSystemMetrics")

// screenSize returns the primary display size in pixels, or (0, 0) if unavailable.
func screenSize() (int, int) {
	width, _, _ := procGetSystemMetrics.Call(uintptr(smCXScreen))
	height, _, _ := procGetSystemMetrics.Call(uintptr(smCYScreen))
	return int(width), int(height)
}