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In terms of hardware, I have read that I need to pull up the rows.
Those are pull-down resistors. Pull-up resistors connect to the Vdd
voltage.

Also the resistors are on the wrong pins. They ...

I got the code to compile, but I get very weird results.

I am using portE, in the following code, do I need any pullups?
void kbd_init()
{
}

In terms of hardware, I have ...

That code is written for 18F-series PICs and below.

You need to download the PCD manual and look at the functions that
CCS uses for the 24-series PICs. This is the function they use for pullups:
...

Hello,

I have tried to compile the code posted by PCM Programmer to no success.

I am trying to make keypad work with LCD. I have successfully made the flex_LCD driver work for me.

Here is KB ...