// SetProperty() saves the given string value either to specific known
// attribute or to a freeform property string on the underlying Image
func (im *MagickImage) SetProperty(prop, value string) (err error) {
c_prop := C.CString(prop)
defer C.free(unsafe.Pointer(c_prop))
c_value := C.CString(value)
defer C.free(unsafe.Pointer(c_value))
ok := C.SetImageProperty(im.Image, c_prop, c_value)
if ok == C.MagickFalse {
return &MagickError{"error", "", "could not set property"}
}
return
}
func (im *Image) setProperty(key string, value *C.char) bool {
k := C.CString(key)
var ret bool
if value == nil {
ret = C.DeleteImageProperty(im.image, k) != 0
} else {
C.DeleteImageProperty(im.image, k)
ret = C.SetImageProperty(im.image, k, value) != 0
}
C.free(unsafe.Pointer(k))
return ret
}