func NewNullPen() *Pen {
lb := w32.LOGBRUSH{LbStyle: w32.BS_NULL}
hPen := w32.ExtCreatePen(w32.PS_COSMETIC|w32.PS_NULL, 1, &lb, 0, nil)
if hPen == 0 {
panic("failed to create null brush")
}
return &Pen{hPen: hPen}
}
func NewPen(style uint, width uint, brush *Brush) *Pen {
if brush == nil {
panic("Brush cannot be nil")
}
hPen := w32.ExtCreatePen(style, width, brush.GetLOGBRUSH(), 0, nil)
if hPen == 0 {
panic("Failed to create pen")
}
return &Pen{hPen, style, brush}
}