C# Saving a form to image without anti aliasing

问题

I am checking if i am able to capture an image and save it to an image file without losing the pixel resolution? I had a 1D barcode inside a form, however i will need to print this form together with the barcode. When i capture and save to a bmp file and print, the barcode is not clear at all. Even printscreen is anti-aliasing? The situation is a lot like the thread below except now i need to save it later for printing.

Undesired anti-aliasing when drawing bitmap on a window

Thanks in advance

来源：https://stackoverflow.com/questions/39096778/c-sharp-saving-a-form-to-image-without-anti-aliasing