Function

CFURLSetResourcePropertiesForKeys

Sets the URL’s resource properties for a given set of keys to a given set of values.

Declaration

Boolean CFURLSetResourcePropertiesForKeys(CFURLRef url, CFDictionaryRef keyedPropertyValues, CFErrorRef *error);

Parameters

url

The URL.

keyedPropertyValues

A dictionary of resource values to be set.

error

The error that occurred if one or more resource values could not be set.

Return Value

true if all resource values in keyedValues are successfully set; otherwise, false.

Discussion

This function synchronously writes the new resource value out to disk. If an error occurs after some resource properties have been successfully changed, the userInfo dictionary in the returned error object contains a kCFURLKeysOfUnsetValuesKey key whose value is an array of the resource values that were not successfully set.

Attempts to set a read-only resource property or to set a resource property that is not supported by the resource are ignored and are not considered errors.

The order in which the resource values are set is not defined. If you need to guarantee the order in which resource values are set, you should make multiple requests to this function or CFURLSetResourcePropertyForKey.

See Also

Getting and Setting File System Resource Properties

CFURLClearResourcePropertyCache

Removes all cached resource values and temporary resource values from the URL object.

CFURLClearResourcePropertyCacheForKey

Removes the cached resource value identified by a given key from the URL object.

CFURLCopyResourcePropertiesForKeys

Returns the resource values for the properties identified by specified array of keys.

CFURLCopyResourcePropertyForKey

Returns the value of a given resource property of a given URL.

CFURLCreateResourcePropertiesForKeysFromBookmarkData

Returns the resource values for properties identified by a specified array of keys contained in specified bookmark data.

CFURLCreateResourcePropertyForKeyFromBookmarkData

Returns the value of a resource property from specified bookmark data.

CFURLSetResourcePropertyForKey

Sets the URL’s resource property for a given key to a given value.

CFURLSetTemporaryResourcePropertyForKey

Sets a temporary resource value on the URL.