transmission/macosx/QuickLookPlugin/GenerateThumbnailForURL.mm

#if __has_feature(modules)
@import CoreFoundation;
@import QuickLook;
#else
#import <CoreFoundation/CoreFoundation.h>
#import <CoreFoundation/CFPlugInCOM.h>
#import <QuickLook/QuickLook.h>
#endif

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
}