isNumber static method

bool? isNumber(
  1. int vk
)

Implementation

static bool? isNumber(int vk) {
  if (MethodChannelWinhookerMouse.virtualKeyCode2StringMap != null) {
    var key_0 = MethodChannelWinhookerMouse.virtualKeyString2CodeMap!['0'];
    var key_9 = MethodChannelWinhookerMouse.virtualKeyString2CodeMap!['9'];
    if ((vk >= key_0!) && (vk <= key_9!)) {
      return true;
    } else {
      return false;
    }
  }
  return null;
}