Tag for IconControlA(), Get the icon rendering mask 1 (PLANEPTR)
Source position: icon.pas line 110
| const ICONCTRLA_GetImageMask1 = ICONA_Dummy + 14; | 
Per Icon Option for IconControlA() Pointer to the mask plane for the regular icon image (Icon^.do_Gadget.GadgetRender). Note that this may be nil.
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 | Tag for IconControlA(), Get the icon rendering mask 2 (PLANEPTR) |