Truxton exif get file id - Revision history

Sam: /* Sample */

2021-02-06T11:09:56Z

Sample

2020-12-26T11:14:56Z

Sample

2020-12-26T11:02:56Z

Sample

2020-12-26T11:01:55Z

Sample

2020-12-26T10:23:26Z

Sample

2020-12-26T10:20:04Z

2020-12-22T18:54:33Z

← Older revision		Revision as of 11:09, 6 February 2021
Line 116:		Line 116:
	}		}
	</source>		</source>
		+
		+	The <code>PRIu64</code> in the sample code above is a standard way of [https://en.wikipedia.org/wiki/C_data_types#Printf_and_scanf_format_specifiers formatting] a 64-bit unsigned integer in C.
		+	Over the years, different compilers on different operating systems used different format specifiers for things, these <code>PRI</code> macros, along with some tricky string concatenation the compilers perform for you, allow you to maintain a single code base without a bunch of macro magic.

@@ Line 62: / Line 62: @@
     floating_point_value = truxton_exif_get_longitude( exif_handle );
-    printf( "Latitude: %lf degrees\n", floating_point_value );
+    printf( "Longitude: %lf degrees\n", floating_point_value );
     floating_point_value = truxton_exif_get_altitude( exif_handle );

@@ Line 17: / Line 17: @@
 =Sample=
-<source lang="C" highlight="8">
+<source lang="C" highlight="11">
 void dump_exif( uint64_t exif_handle )
+{

@@ Line 17: / Line 17: @@
 =Sample=
-<source lang="C" highlight="57">
+<source lang="C" highlight="8">
 void dump_exif( uint64_t exif_handle )
+{
     char id[ 65 ];
     truxton_exif_get_id( exif_handle, id, sizeof( id ) );
-    printf( "ID is %s\n", id );
+    printf( "ID: %s\n", id );
     truxton_exif_get_file_id( exif_handle, id, sizeof( id ) );
-    printf( "File ID is %s\n", id );
+    printf( "File ID: %s\n", id );
     truxton_exif_get_media_id( exif_handle, id, sizeof( id ) );
-    printf( "Media ID is %s\n", id );
+    printf( "Media ID: %s\n", id );
+}
 </source>

← Older revision		Revision as of 10:20, 26 December 2020
Line 1:		Line 1:
−	~~THi~~
	This corresponds to the <code>[FileID]</code> column of the <code><nowiki>[</nowiki>[[EXIF Table\|EXIF]]<nowiki>]</nowiki></code> table in the database.		This corresponds to the <code>[FileID]</code> column of the <code><nowiki>[</nowiki>[[EXIF Table\|EXIF]]<nowiki>]</nowiki></code> table in the database.

@@ Line 1: / Line 1: @@
 THi
-This corresponds to the <code>[ID]</code> column of the <code><nowiki>[</nowiki>[[EXIF Table|EXIF]]<nowiki>]</nowiki></code> table in the database.
+This corresponds to the <code>[FileID]</code> column of the <code><nowiki>[</nowiki>[[EXIF Table|EXIF]]<nowiki>]</nowiki></code> table in the database.
 =Syntax=
 <source lang="C">
-void truxton_exif_get_id( uint64_t exif_handle, char * destination_string, size_t max_size );
+void truxton_exif_get_file_id( uint64_t exif_handle, char * destination_string, size_t max_size );
 </source>