Need Help For Print Routine

I need to Print Graphics + Text for my application. I need help is assigning Graphics Buffer
with reference to paper size and resolution. I need to reserve some area for text and some for graphics.
Pl let me know any links of this tutorial.

Thankx a lot ..

1. What type of "application" are you using?
2. Define "Graphics Buffer"

Thank u first of all.

I have written a prog where I collect waveform data and display it.

I have defined a buffer and drawing that waveform in that. I am writing some text information and then transferring the buffer to print buffer. I am using Fast Graphics Tools for all above. The problem is , as I change paper selection and resolution all active buffer sizes need to change. I am using GetDeviceCaps to get LOGPIXELSX etc
but failed to find universal formula . If page length changes , waveform is shown half or so.

Any other method to print , using MFC will also do.

So I need a Print Tutorial , which will print for any print setting.