SetDesignFontA: define a font for grid layout computation. (V47)

ok = SetDesignFontA(vi,textattr,tags)

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LONG SetDesignFontA(APTR,struct TextAttr *ta,struct TagItem *tags);

LONG SetDesignFont(APTR,struct TextAttr *ta,...);

SetDesignFontA() defines a font to be used as basis for grid layout functions for gadget placement with the NG_GRIDLAYOUT flag set. If so, the gadget dimensions and position will be derived from the font sizes. The upper 12 bit define a scaling factor that is multiplied by the width or height of the font divided by 4, the lower 4 bit a pixel offset that is added or subtracted. Without this call, the scaling is based on 8x8 font cells, i.e. topaz.8.

vi: pointer that was obtained by calling GetVisualInfoA(). This value may not be NULL.
ta: pointer to a TextAttr structure defining the font. This structure is not used any further and may be released after calling SetDesignFontA()
tags: additional tags for setting the design parameters or NULL.

GTVI_LeftBorder:: Left offset for the gadget design grid. Default is the current setting of the VisualInfo.

GTVI_TopBorder : Top offset for the gadget design grid.

Default is the current setting of the VisualInfo.

GTVI_MinFontWidth : Minimum design font width. If the font width

is smaller than the pixel width given by this tag, the tag value is used. Default is 0.

GTVI_MinFontHeight:: Minimum design font height. If the font height is smaller than the pixel height given by this tag, the tag value is used. Default is 0.

ok: boolean success indicator. 0 on failure.

GetVisualInfoA(), ScaleGadgetRectA()

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SEE ALSO