Author Topic: Tutor_12 (C++ VS2022 GDImage64 tutorial)  (Read 2016 times)

Patrice Terrier

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Tutor_12 (C++ VS2022 GDImage64 tutorial)
« on: August 01, 2023, 09:07:22 am »
twelfth post of a series, translated from the "WinDev and PowerBASIC",
to explain the use of GDImage64 in procedural* programming mode with Visual Studio 2022.

About Tutor_12
This tutor introduces the use of EXIF Tags to read/write image annotations.

EXIF stands for "Exchangeable Image File Format".
The annotations are formatted according to the TIFF specification, and may be found also in JPG, PNG, and many TIFF-based RAW images.

This project is a console application.

This API uses a zTrace window to list the tags found in the Annecy.jpg file.

This low level API duplicates the image before writing a new title tag to it: "This is the title of the new clone image".

Extracting Thumbnail
If the EXIF tag contains thumbnail data, then we create a file named "thumbnail.jpg".

GDImage 7.14
Is an experimental version converted to VS2022, and designed specifically to run all the Tutor applications.

* procedural programming mode, is based on direct use of the FLAT API (Windows SDK) that is the core meat of the OS.
« Last Edit: August 10, 2023, 03:13:27 pm by Patrice Terrier »
(Always working with the latest Windows version available...)