@import CoreFoundation; @import QuickLook; QL_EXTERN_C_BEGIN OSStatus GenerateThumbnailForURL(void* thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize); void CancelThumbnailGeneration(void* thisInterface, QLThumbnailRequestRef thumbnail); QL_EXTERN_C_END /* ----------------------------------------------------------------------------- Generate a thumbnail for file This function's job is to create thumbnail for designated file as fast as possible ----------------------------------------------------------------------------- */ OSStatus GenerateThumbnailForURL(void* thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize) { // To complete the generator, please implement the function GenerateThumbnailForURL here return noErr; } void CancelThumbnailGeneration(void* thisInterface, QLThumbnailRequestRef thumbnail) { // Implement only if supported }