Defining a Virtual Data Form in Code

Code: A virtual form is defined using the virtual form definition function fm_vdef():

`DFORMPTR fm_vdef(rb, cb, rowq, colq, att, bdrp, vf_rowq, vf_colq)`
`int rb;`	`/* Beginning row of form window`	`*/`
`int cb;`	`/* Beginning column of form window`	`*/`
`int rowq;`	`/* Number of rows in form window`	`*/`
`int colq;`	`/* Number of columns in form window`	`*/`
`UCHAR att;`	`/* Form window video attribute`	`*/`
`BORDERPTR bdrp;`	`/* Form window border pointer`	`*/`
`int vf_rowq;`	`/* Number of rows in form`	`*/`
`int vf_colq;`	`/* Number of columns in form`	`*/`

All arguments for fm_vdef() are the same as fm_def() except for the two additional arguments, vf_rowq and vf_colq. These two arguments specify the size of the underlying data form. When defining items on the data form, you can use the entire area of the form.