Mine

void doMagic(int from, int to)
{
	if ((from < 0) || (to > 9999))
		return;
	
	for (int i = from; i <= to; i++)
	{
		WaitForPixel();
		char buffer[5];
		sprintf_s(buffer, sizeof(buffer), "%04i", from);

		for (int j = 0; j < 4; i++)
		{
			SendInputKey(VkKeyScan(buffer[i]), buffer[i]);
		}
		SendInputKey(VK_RETURN, 10);
		Sleep(100);
	}
}