Set an internal control point of the current patch.
Valid values for point_num are from 0 to 3 and identify the control points as explained in cairo.global.patternCreateMesh.
Note: If pattern is not a mesh pattern then pattern will be put into an error status with a status of cairo.types.Status.PatternTypeMismatch. If point_num is not valid, pattern will be put into an error status with a status of cairo.types.Status.InvalidIndex. If pattern has no current patch, pattern will be put into an error status with a status of cairo.types.Status.InvalidMeshConstruction.
a #cairo_pattern_t
the control point to set the position for
the X coordinate of the control point
the Y coordinate of the control point
Set an internal control point of the current patch.
Valid values for point_num are from 0 to 3 and identify the control points as explained in cairo.global.patternCreateMesh.
Note: If pattern is not a mesh pattern then pattern will be put into an error status with a status of cairo.types.Status.PatternTypeMismatch. If point_num is not valid, pattern will be put into an error status with a status of cairo.types.Status.InvalidIndex. If pattern has no current patch, pattern will be put into an error status with a status of cairo.types.Status.InvalidMeshConstruction.