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Categories / Delphi / API
 

Rotating a metafile

Question: How do I rotate a Metafile? Answer: You will need to enumerate though the metafile records using the Windows API functions EnumMetaFile() and EnumEnhMetaFile(). As each Metafile object is returned, you will need to rotate the coordinates of each object. Rectangles will need to be converted to polygons, and ellipses will need to be rendered to polylines under Win16 or replaced with paths under Win32. Fonts should be remapped to TrueType fonts (if necessary) since most non-TrueType fonts do not rotate.