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gimpregioniterator — Functions to traverse a pixel regions.
struct GimpRgnIterator; void (*GimpRgnFunc1) (const guchar *src, gint bpp, gpointer data); void (*GimpRgnFunc2) (const guchar *src, guchar *dest, gint bpp, gpointer data); void (*GimpRgnFuncSrc) (gint x, gint y, const guchar *src, gint bpp, gpointer data); void (*GimpRgnFuncDest) (gint x, gint y, guchar *dest, gint bpp, gpointer data); void (*GimpRgnFuncSrcDest) (gint x, gint y, const guchar *src, guchar *dest, gint bpp, gpointer data); GimpRgnIterator* gimp_rgn_iterator_new (GimpDrawable *drawable, GimpRunMode unused); void gimp_rgn_iterator_free (GimpRgnIterator *iter); void gimp_rgn_iterator_src (GimpRgnIterator *iter, GimpRgnFuncSrc func, gpointer data); void gimp_rgn_iterator_dest (GimpRgnIterator *iter, GimpRgnFuncDest func, gpointer data); void gimp_rgn_iterator_src_dest (GimpRgnIterator *iter, GimpRgnFuncSrcDest func, gpointer data); void gimp_rgn_iterate1 (GimpDrawable *drawable, GimpRunMode unused, GimpRgnFunc1 func, gpointer data); void gimp_rgn_iterate2 (GimpDrawable *drawable, GimpRunMode unused, GimpRgnFunc2 func, gpointer data);
The GimpRgnIterator functions provide a variety of common ways to traverse a PixelRegion, using a pre-defined function pointer per pixel.
void (*GimpRgnFunc1) (const guchar *src, gint bpp, gpointer data);
src : | |
bpp : | |
data : |
void (*GimpRgnFunc2) (const guchar *src, guchar *dest, gint bpp, gpointer data);
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dest : | |
bpp : | |
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void (*GimpRgnFuncSrc) (gint x, gint y, const guchar *src, gint bpp, gpointer data);
x : | |
y : | |
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bpp : | |
data : |
void (*GimpRgnFuncDest) (gint x, gint y, guchar *dest, gint bpp, gpointer data);
x : | |
y : | |
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bpp : | |
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void (*GimpRgnFuncSrcDest) (gint x, gint y, const guchar *src, guchar *dest, gint bpp, gpointer data);
x : | |
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src : | |
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bpp : | |
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GimpRgnIterator* gimp_rgn_iterator_new (GimpDrawable *drawable, GimpRunMode unused);
Creates a new GimpRgnIterator for drawable. The GimpRunMode parameter is ignored.
drawable : | a GimpDrawable |
unused : | ignored |
Returns : | a newly allocated GimpRgnIterator. |
void gimp_rgn_iterator_free (GimpRgnIterator *iter);
Frees the resources allocated for iter.
iter : | a GimpRgnIterator |
void gimp_rgn_iterator_src (GimpRgnIterator *iter, GimpRgnFuncSrc func, gpointer data);
iter : | |
func : | |
data : |
void gimp_rgn_iterator_dest (GimpRgnIterator *iter, GimpRgnFuncDest func, gpointer data);
iter : | |
func : | |
data : |
void gimp_rgn_iterator_src_dest (GimpRgnIterator *iter, GimpRgnFuncSrcDest func, gpointer data);
iter : | |
func : | |
data : |
void gimp_rgn_iterate1 (GimpDrawable *drawable, GimpRunMode unused, GimpRgnFunc1 func, gpointer data);
drawable : | |
unused : | |
func : | |
data : |
void gimp_rgn_iterate2 (GimpDrawable *drawable, GimpRunMode unused, GimpRgnFunc2 func, gpointer data);
drawable : | |
unused : | |
func : | |
data : |
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