harmony 鸿蒙drawing_font_mgr.h

2025-06-12
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drawing_font_mgr.h

Overview

The drawing_font_mgr.h file declares the functions related to font management in the drawing module. The functions can be used to load fonts and match available fonts in the system.

File to include: <native_drawing/drawing_font_mgr.h>

Library: libnative_drawing.so

Since: 12

Related module: Drawing

Summary

Functions

Name	Description
OH_Drawing_FontMgr * OH_Drawing_FontMgrCreate (void)	Creates an OH_Drawing_FontMgr object, which can be used only to manage system fonts.
void OH_Drawing_FontMgrDestroy (OH_Drawing_FontMgr *)	Destroys an OH_Drawing_FontMgr object and reclaims the memory occupied by the object.
int OH_Drawing_FontMgrGetFamilyCount (OH_Drawing_FontMgr *)	Obtains the number of font families.
char * OH_Drawing_FontMgrGetFamilyName (OH_Drawing_FontMgr *, int index)	Obtains the font family name based on an index.
void OH_Drawing_FontMgrDestroyFamilyName (char *familyName)	Reclaims the memory occupied by a font family name.
OH_Drawing_FontStyleSet * OH_Drawing_FontMgrCreateFontStyleSet (OH_Drawing_FontMgr *, int index)	Creates a font style set from an OH_Drawing_FontMgr object.
void OH_Drawing_FontMgrDestroyFontStyleSet (OH_Drawing_FontStyleSet *)	Reclaims the memory occupied by a font style set.
OH_Drawing_FontStyleSet * OH_Drawing_FontMgrMatchFamily (OH_Drawing_FontMgr , const char familyName)	Obtains a font style set based on a font family name.
OH_Drawing_Typeface * OH_Drawing_FontMgrMatchFamilyStyle (OH_Drawing_FontMgr , const char familyName, OH_Drawing_FontStyleStruct)	Obtains a typeface based on the font style information and font family name.
OH_Drawing_Typeface * OH_Drawing_FontMgrMatchFamilyStyleCharacter (OH_Drawing_FontMgr , const char familyName, OH_Drawing_FontStyleStruct, const char *bcp47[], int bcp47Count, int32_t character)	Obtains a typeface for the specified character. A null pointer is returned only when no typeface corresponding to the input UTF-8 character is found in the OH_Drawing_FontMgr object.
OH_Drawing_Typeface * OH_Drawing_FontStyleSetCreateTypeface (OH_Drawing_FontStyleSet *, int index)	Obtains a typeface for the specified index.
OH_Drawing_FontStyleStruct OH_Drawing_FontStyleSetGetStyle (OH_Drawing_FontStyleSet , int32_t index, char *styleName)	Obtains the font style.
void OH_Drawing_FontStyleSetFreeStyleName (char **styleName)	Reclaims the memory occupied by a font style.
OH_Drawing_Typeface * OH_Drawing_FontStyleSetMatchStyle (OH_Drawing_FontStyleSet *, OH_Drawing_FontStyleStruct fontStyleStruct)	Obtains the typeface closest to the font style.
int OH_Drawing_FontStyleSetCount (OH_Drawing_FontStyleSet *)	Obtains the number of fonts in the font style set.