harmony 鸿蒙drawing_text_font_descriptor.h
drawing_text_font_descriptor.h
Overview
The drawing_text_font_descriptor.h file declares the capabilities of font information, such as obtaining font information and searching for a font.
File to include:
Library: libnative_drawing.so
Since: 14
Related module: Drawing
Summary
Types
| Name | Description |
|---|---|
| typedef enum OH_Drawing_SystemFontType OH_Drawing_SystemFontType | Defines an enum for the system font types. |
Enums
| Name | Description |
|---|---|
| OH_Drawing_SystemFontType { ALL = 1 << 0, GENERIC = 1 << 1, STYLISH = 1 << 2, INSTALLED = 1 << 3, CUSTOMIZED = 1 << 4 } | Enumerates the system font types. |
Functions
| Name | Description |
|---|---|
| OH_Drawing_FontDescriptor * OH_Drawing_MatchFontDescriptors (OH_Drawing_FontDescriptor *, size_t *) | Obtains all system font descriptors that match a font descriptor. In the OH_Drawing_FontDescriptor struct, the path field is not used for matching, and other fields are valid only when they are not set to their default values. If all fields in OH_Drawing_FontDescriptor are set to their default values, all system font descriptors are returned. If no matching is found, NULL is returned. When OH_Drawing_FontDescriptor is no longer required, call OH_Drawing_DestroyFontDescriptors to release the pointer to the object. |
| void OH_Drawing_DestroyFontDescriptors (OH_Drawing_FontDescriptor *, size_t) | Releases an array of OH_Drawing_FontDescriptor objects. |
| OH_Drawing_FontDescriptor * OH_Drawing_GetFontDescriptorByFullName (const OH_Drawing_String *, OH_Drawing_SystemFontType) | Obtains a font descriptor based on the font name and type. System fonts, style fonts, and user-installed fonts are supported. A font descriptor is a data structure that describes font features. It contains details of the font appearance and properties. |
| OH_Drawing_Array * OH_Drawing_GetSystemFontFullNamesByType (OH_Drawing_SystemFontType) | Obtains an array of font names by font type. |
| const OH_Drawing_String * OH_Drawing_GetSystemFontFullNameByIndex (OH_Drawing_Array *, size_t) | Obtains the font name with the specified index in the font name array. |
| void OH_Drawing_DestroySystemFontFullNames (OH_Drawing_Array *) | Releases the memory occupied by the font name array obtained by font type. |
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