void meshPatternBeginPatch(cairo.pattern.Pattern pattern)Begin a patch in a mesh pattern.
After calling this function, the patch shape should be defined with cairo.global.meshPatternMoveTo, cairo.global.meshPatternLineTo and cairo.global.meshPatternCurveTo.
After defining the patch, cairo.global.meshPatternEndPatch must be called before using pattern as a source or mask.
into an error status with a status of cairo.types.Status.PatternTypeMismatch. If pattern already has a current patch, it will be put into an error status with a status of cairo.types.Status.InvalidMeshConstruction.
pattern | a #cairo_pattern_t |