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                           TEXTBOXES
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textboxes are controls, owned directly by the form they reside
 on. The name reflects this situation.
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Honestly, very little separates textboxes and labels. textboxes
 can be drawn without the signature 'box' border, and labels
 can be drawn with the border and respond to click events almost
 exactly as textboxes.
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I say 'almost' exactly the same, because there's one trick
 textboxes can perform that labels can not: accept typing text
 for direct on-screen input.
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NOTE: typing for user input directly onscreen into a textbox
      is not yet implemented.
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here are the properties for the textbox control object:
.bcolor    (border color, 9 byte color string)
.text      (text string to display)
.tcolor    (text color, 9 byte color string)
.txtoff    (text y offset, in pixels, -[up] or down)
.x1        (x1,y1)=anchor point
.y1
.x2        (x2,y2)=size
.y2
.border   (0=off, 1=single line border, #=mult. line border)
.data     (generic custom property for everybody to use)
.autotall (resets y2 to accodate font width automatically)
.autowide (resets x2 to accodate font height automatically)
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