| | Defined in FT_BITMAP_H (freetype/ftbitmap.h). | 
 
 
 | Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, or 8bpp to a bitmap object with depth 8bpp, making the number of used bytes per line (a.k.a. the ‘pitch’) a multiple of ‘alignment’. | 
 
 | input |  | 
| library | A handle to a library object. |  | source | The source bitmap. |  | alignment | The pitch of the bitmap is a multiple of this parameter. Common values are 1, 2, or 4. |  | 
 | output |  | 
| target | The target bitmap. |  | 
 | return |  | FreeType error code. 0 means success. | 
 | note |  | It is possible to call FT_Bitmap_Convert multiple times without calling FT_Bitmap_Done (the memory is simply reallocated). Use FT_Bitmap_Done to finally remove the bitmap object. The ‘library’ argument is taken to have access to FreeType's memory handling functions. | 
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