//?Rendering?a?page?of?a?PDF?document?to?a?PNG?image?in?less?than?100?lines.

//?Compile?a?debug?build?of?mupdf?then?compile?and?run?this?example:
//
//?gcc?-g?-o?build/debug/example?-Iinclude?docs/example.c?\
//	build/debug/libmupdf.a?\
//	build/debug/libfreetype.a?build/debug/libjbig2dec.a?\
//	build/debug/libjpeg.a?build/debug/libopenjpeg.a?\
//	build/debug/libmujs.a?\
//	build/debug/libz.a?-lm
//
//?build/debug/example?/path/to/document.pdf?1?200?25

//?Include?the?MuPDF?header?file.
#include?

void
render（char?*filename?int?pagenumber?int?zoom?int?rotation）
{
	fz_context?*ctx;
	fz_document?*doc;
	int?pagecount;
	fz_page?*page;
	fz_matrix?transform;
	fz_rect?bounds;
	fz_irect?bbox;
	fz_pixmap?*pix;
	fz_device?*dev;

	//?Create?a?context?to?hold?the?exception?stack?and?various?caches.

	ctx?=?fz_new_context（NULL?NULL?FZ_STORE_UNLIMITED）;

	//?Register?the?default?file?types.

	fz_register_document_handlers（ctx）;

	//?Open?the?PDF?XPS?or?CBZ?document.

	doc?=?fz_open_document（ctx?filename）;

	//?Retrieve?the?number?of?pages?（not?used?in?this?example）.

	pagecount?=?fz_count_pages（ctx?doc）;

	//?Load?the?page?we?want.?Page?numbering?starts?from?zero.

	page?=?fz_load_page（ctx?doc?pagenumber?-?1）;

	//?Calculate?a?transform?to?use?when?rendering.?This?transform
	//?contains?the?scale?and?rotation.?Convert?zoom?percentage?to?a
	//?scaling?factor.?Without?scaling?the?resolution?is?72?dpi.

	fz_rotate（&transform?rotation）;
	fz_pre_scale（&transform?zoom?/?100.0f?zoom?/?100.0f）;

	//?Take?the?page?bounds?and?transform?them?by?the?same?matrix?that
	//?we?will?use?to?render?the?page.

	fz_bound_page（ctx?page?&bounds）;
	fz_transform_rect（&bounds?&transform）;

	//?Create?a?blank?pixmap?to?hold?the?result?of?rendering.?The
	//?pixmap?bounds?used?here?are?the?same?as?the?transformed?page
	//?bounds?so?it?will?contain?the?entire?page.?The?page?coordinate
	//?space?has?the?origin?at?the?top?left?corner?and?the?x?axis
	//?extends?to?the?right?and?the?y?axis?extends?down.

	fz_round_rect（&bbox?&bounds）;
	pix?=?fz_new_pixmap_with_bbox（ctx?fz_device_rgb（ctx）?&bbox）;
	fz_clear_pixmap_with_value（ctx?pix?0xff）;

	//?A?page?consists?of?a?series?of?objects?（text?line?art?images
	//?gradients）.?These?objects?are?passed?to?a?device?when?the
	//?interpreter?runs?the?page.?There?are?several?devices?used?for
	//?different?purposes:
	//
	//	draw?device?--?renders?objects?to?a?target?pixmap.
	//
	//	text?device?--?extracts?the?text?in?reading?order?with?styling
	//	information.?This?text?can?be?used?to?provide?text?search.
	//
	//	list?device?--?records?the?graphic?objects?in?a?list?that?can
	//	be?played?back?through?another?device.?This?is?useful?if?you
	//	need?to?run?the?same?page?through?multiple?devices?without
	//	the?overhead?of?parsing?the?page?each?time.

	//?Create?a?draw?device?with?the?pixmap?as?its?target.
	//?Run?the?page?with?the?transform.

	dev?=?fz_new_draw_device（ctx?pix）;
	fz_run_page（ctx?page?dev?&transform

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????8338??2015-05-02?09:18??CHANGES

?????文件????????482??2015-05-02?09:18??CONTRIBUTORS

?????文件??????34520??2015-05-02?09:18??COPYING

?????文件??????10911??2015-05-02?09:18??Makefile

?????文件???????5197??2015-05-02?09:18??Makerules

?????文件???????9166??2015-05-02?09:18??Makethird

?????文件???????3275??2015-05-02?09:18??README

?????文件???????3509??2015-05-02?09:18??docs\example.c

?????文件???????2760??2015-05-02?09:18??docs\man\mudraw.1

?????文件???????3090??2015-05-02?09:18??docs\man\mupdf.1

?????文件???????4794??2015-05-02?09:18??docs\man\mutool.1

?????文件???????8481??2015-05-02?09:18??docs\multi-threaded.c

?????文件????????954??2015-05-02?09:18??docs\naming.txt

?????文件??????10186??2015-05-02?09:18??docs\overview.txt

?????文件??????13272??2015-05-02?09:18??docs\progressive.txt

?????文件????????838??2015-05-02?09:18??docs\refcount.txt

?????文件????????637??2015-05-02?09:18??docs\thirdparty.txt

?????文件???????1353??2015-05-02?09:18??include\mupdf\fitz\annotation.h

?????文件???????2259??2015-05-02?09:18??include\mupdf\fitz\bitmap.h

?????文件???????3519??2015-05-02?09:18??include\mupdf\fitz\buffer.h

?????文件???????3648??2015-05-02?09:18??include\mupdf\fitz\colorspace.h

?????文件???????1765??2015-05-02?09:18??include\mupdf\fitz\compressed-buffer.h

?????文件??????14167??2015-05-02?09:18??include\mupdf\fitz\context.h

?????文件???????2437??2015-05-02?09:18??include\mupdf\fitz\crypt.h

?????文件??????13029??2015-05-02?09:18??include\mupdf\fitz\device.h

?????文件???????3208??2015-05-02?09:18??include\mupdf\fitz\display-list.h

?????文件??????11948??2015-05-02?09:18??include\mupdf\fitz\document.h

?????文件???????1767??2015-05-02?09:18??include\mupdf\fitz\filter.h

?????文件???????3901??2015-05-02?09:18??include\mupdf\fitz\font.h

?????文件???????1048??2015-05-02?09:18??include\mupdf\fitz\function.h

............此處省略3954個文件信息