Section 3: library functions
FcObjectSetBuild, FcObjectSetVaBuild, FcObjectSetVapBuild – Build object set from args Synopsis #include <fontconfig/fontconfig.h> FcObjectSet * FcObjectSetBuild (const char *first, …); FcObjectSet * FcObjectSetVaBuild (const char *first, va_list va); void FcObjectSetVapBuild (FcObjectSet *result, const char *first, va_list va); Description These build an object set from a null-terminated list of property names. FcObjectSetVapBuild is a macro version of…
FcObjectSetAdd – Add to an object set Synopsis #include <fontconfig/fontconfig.h> FcBool FcObjectSetAdd (FcObjectSet *os, const char *object); Description Adds a property name to the set. Returns FcFalse if the property name cannot be inserted into the set (due to allocation failure). Otherwise returns FcTrue.
FcNameUnregisterObjectTypes – Unregister object types Synopsis #include <fontconfig/fontconfig.h> FcBool FcNameUnregisterObjectTypes (const FcObjectType *types, int ntype); Description Deprecated. Does nothing. Returns FcFalse.
FcNameUnregisterConstants – Unregister symbolic constants Synopsis #include <fontconfig/fontconfig.h> FcBool FcNameUnregisterConstants (const FcConstant *consts, int nconsts); Description Deprecated. Does nothing. Returns FcFalse.
FcNameUnparse – Convert a pattern back into a string that can be parsed Synopsis #include <fontconfig/fontconfig.h> FcChar8 * FcNameUnparse (FcPattern *pat); Description Converts the given pattern into the standard text format described above. The return value is not static, but instead refers to newly allocated memory which should be freed by the caller using free().
FcNameRegisterObjectTypes – Register object types Synopsis #include <fontconfig/fontconfig.h> FcBool FcNameRegisterObjectTypes (const FcObjectType *types, int ntype); Description Deprecated. Does nothing. Returns FcFalse.
FcNameRegisterConstants – Register symbolic constants Synopsis #include <fontconfig/fontconfig.h> FcBool FcNameRegisterConstants (const FcConstant *consts, int nconsts); Description Deprecated. Does nothing. Returns FcFalse.
FcNameParse – Parse a pattern string Synopsis #include <fontconfig/fontconfig.h> FcPattern * FcNameParse (const FcChar8 *name); Description Converts name from the standard text format described above into a pattern.
FcNameGetObjectType – Lookup an object type Synopsis #include <fontconfig/fontconfig.h> const FcObjectType * FcNameGetObjectType (const char *object); Description Return the object type for the pattern element named object.
FcNameGetConstant – Lookup symbolic constant Synopsis #include <fontconfig/fontconfig.h> const FcConstant * FcNameGetConstant (FcChar8 *string); Description Return the FcConstant structure related to symbolic constant string.
FcNameConstant – Get the value for a symbolic constant Synopsis #include <fontconfig/fontconfig.h> FcBool FcNameConstant (FcChar8 *string, int *result); Description Returns whether a symbolic constant with name string is registered, placing the value of the constant in result if present.
FcNameConstant – Get the value for a symbolic constant Synopsis #include <fontconfig/fontconfig.h> FcBool FcNameConstant (FcChar8 *string, int *result); Description Returns whether a symbolic constant with name string is registered, placing the value of the constant in result if present.
FcMatrixShear – Shear a matrix Synopsis #include <fontconfig/fontconfig.h> void FcMatrixShear (FcMatrix *matrix, double sh, double sv); Description FcMatrixShare shears matrix horizontally by sh and vertically by sv. This is done by multiplying by the matrix: 1 sh sv 1
FcMatrixScale – Scale a matrix Synopsis #include <fontconfig/fontconfig.h> void FcMatrixScale (FcMatrix *matrix, double sx, double dy); Description FcMatrixScale multiplies matrix x values by sx and y values by dy. This is done by multiplying by the matrix: sx 0 0 dy
FcMatrixRotate – Rotate a matrix Synopsis #include <fontconfig/fontconfig.h> void FcMatrixRotate (FcMatrix *matrix, double cos, double sin); Description FcMatrixRotate rotates matrix by the angle who’s sine is sin and cosine is cos. This is done by multiplying by the matrix: cos -sin sin cos
FcMatrixMultiply – Multiply matrices Synopsis #include <fontconfig/fontconfig.h> void FcMatrixMultiply (FcMatrix *result, const FcMatrix *matrix1, const FcMatrix *matrix2); Description FcMatrixMultiply multiplies matrix1 and matrix2 storing the result in result.
FcMatrixInit – initialize an FcMatrix structure Synopsis #include <fontconfig/fontconfig.h> void FcMatrixInit (FcMatrix *matrix); Description FcMatrixInit initializes matrix to the identity matrix.
FcMatrixEqual – Compare two matrices Synopsis #include <fontconfig/fontconfig.h> void FcMatrixEqual (const FcMatrix *matrix1, const FcMatrix *matrix2); Description FcMatrixEqual compares matrix1 and matrix2 returning FcTrue when they are equal and FcFalse when they are not.
FcMatrixCopy – Copy a matrix Synopsis #include <fontconfig/fontconfig.h> void FcMatrixCopy (const FcMatrix *matrix); Description FcMatrixCopy allocates a new FcMatrix and copies mat into it.
FcLangSetUnion – Add langsets Synopsis #include <fontconfig/fontconfig.h> FcLangSet * FcLangSetUnion (const FcLangSet *ls_a, const FcLangSet *ls_b); Description Returns a set including only those languages found in either ls_a or ls_b. Since version 2.9.0