Note: This property is relevant only for the Monotype Spark font engine.
Controls preallocation of the heap buffer used by font engine. The default value is ON, which means preallocation is enabled.
set_target_properties(<Executable Target> PROPERTIES QUL_FONT_ENGINE "Spark" QUL_FONT_FILES <Monotype Spark Font File> QUL_FONT_HEAP_SIZE <Size> QUL_FONT_HEAP_PREALLOC OFF )
See also Text Rendering and Fonts and QUL_FONT_HEAP_SIZE.
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