Demo Programs

The following demo programs are in separate EXAMPLES subdirectories of the path where you installed your product (such as C:\LEADTOOLS22\Examples\).

The executable files for these examples were compiled with all LEADTOOLS capabilities unlocked. However, for redeployment, some of these capabilities require product-specific unlock keys. Otherwise, if you recompile the examples, the resulting executable files will not have the locked capabilities.

To unlock and redeploy these capabilities, you must purchase an appropriate product license, such as that included with a LEADTOOLS Document/Medical toolkit.

The following demos are available:

Demo Name Source Code Path Description
Compress Callback \Examples\FileFormats\C\CompCB

Demonstrates Image Compression functionality.

Loads a 24-bit image, compresses it, and displays the compressed image.

Demo Name Source Code Path Pre-Compiled Executable Path Description
Feed Info \Examples\FileFormats\C\FeedInfo \Bin\CDLL\<Win32/x64>\FeedInfo_Original.exe

Demonstrates LEADTOOLS image info functionality

Gets the information for a given image file and displays it.

Demo Name Source Code Path Description
Feed Load \Examples\FileFormats\C\FeedLoad

Demonstrates LEADTOOLS image feed load functionality

Progressively loads an image and paints the image as it loads.

Demo Name Source Code Path Description
File Converter \Examples\FileFormats\C\FileConversion

Demonstrates LEADTOOLS image conversion capabilities

Shows how to load and convert between various image file formats.

Demo Name Source Code Path Pre-Compiled Executable Path Description
File Converter Utility \Examples\FileFormats\C\FileConvertUtility \Bin\CDLL\<Win32/x64>\FileConvertUtility_Original.exe

Demonstrates LEADTOOLS file conversion support.

Shows how to create and run a command line utility capable of converting between image file formats.

Demo Name Source Code Path Description
Info \Examples\FileFormats\C\Info

Demonstrates getting image file information with LEADTOOLS

Demo Name Source Code Path Pre-Compiled Executable Path Description
J2K \Examples\FileFormats\C\J2K \Bin\CDLL\<Win32/x64>\J2K_Original.exe

Demonstrates JPEG 2000 image support.

  • Load / Progressive Load and display J2K Images
  • Zoom in / out
Demo Name Source Code Path Pre-Compiled Executable Path Description
J2K Large Image Save \Examples\FileFormats\C\J2KLargeImageSave \Bin\CDLL\<Win32/x64>\J2kLargeImageSave_Original.exe

Demonstrates progressive load / save for large J2K images.

Performs progressive load / save for large J2K images to avoid keeping the entire image in memory during the compression process.

Demo Name Source Code Path Pre-Compiled Executable Path Description
JPX \Examples\FileFormats\C\Jpx \Bin\CDLL\<Win32/x64>\Jpx_Original.exe

Demonstrates JPX (JPEG 2000 Part-2) features of LEADTOOLS.

  • Load and display JPX files
  • View multi-frame JPX files as animations
  • View and edit JPX boxes
  • View JPX file structure
Demo Name Source Code Path Description
Load Callback \Examples\FileFormats\C\LoadCB

Demonstrates loading image files with a callback function.

Loads an image passed as a command line argument from file, sets a callback function, and displays the image as it is loaded.

Demo Name Source Code Path Description
Load Save \Examples\FileFormats\C\LoadSave

Demonstrates loading and saving of images.

Menu driven example for loading and saving images.

Demo Name Source Code Path Description
Memory \Examples\FileFormats\C\Memory

Demonstrates loading an image from memory to a bitmap.

Loads an image from file, loads the image from memory to a bitmap, and displays the image.

Demo Name Source Code Path Description
Memory Callback \Examples\FileFormats\C\MemoryCB

Demonstrates loading an image from memory to a bitmap with a Callback function.

Loads an image from file, loads the image from memory to a bitmap, and displays the image.

Demo Name Source Code Path Pre-Compiled Executable Path Description
NITF \Examples\FileFormats\C\Nitf \Bin\CDLL\<Win32/x64>\Nitf_Original.exe

Demonstrates National Image Transport Format (NITF) functionality.

Open or create .ntf files, view and edit metadata, and manipulate media with image processing.

Demo Name Source Code Path Description
Offset \Examples\FileFormats\C\Offset

Demonstrates how to save an image with an offset

Shows how to load and save an image with an offset using the L_SaveFileOffset() function.

Demo Name Source Code Path Description
Redirect IO \Examples\FileFormats\C\Redirect

Demonstrates how to use the power of the redirect I/O feature.

  • Loads an image file (name passed as command line parameter) into allocated memory.
  • Loads the image from memory to a bitmap with L_LoadBitmap
  • Displays the loaded image in a window
Demo Name Source Code Path Pre-Compiled Executable Path Description
Save Callback \Examples\FileFormats\C\SaveCB \Bin\CDLL\<Win32/x64>\SaveCB_Original.exe

Demonstrates saving an image file with a callback function.

  • Loads the image from a file, whose name is sent through the command line, using L_LoadFile
  • Displays the image
  • Saves the image to the output directory using a callback and status window
Demo Name Source Code Path Description
Save Memory \Examples\FileFormats\C\SaveMemory

This is a menu-driven example for loading and saving images.

  • Load an image from a file, selected using Windows' common dialog box for opening a file, to a bitmap
  • Display the image in a window
  • Get a filename, format, and bits per pixel to save to, using Windows' common dialog box
  • Save the image.
Demo Name Source Code Path Description
Simple Load \Examples\FileFormats\C\SimpleLoad

Demonstrates simple loading and displaying of an image using LEADTOOLS.

Gets an image file name from command line, loads image to bitmap, creates a window, and displays the image.

Demo Name Source Code Path Description
Stamp Get \Examples\FileFormats\C\StampGet

Demonstrates opening and displaying a stamp file with LEADTOOLS.

Loads a stamp from a file using Windows' common dialog box for opening a file, converts to bitmap, and displays the image in a window.

Demo Name Source Code Path Pre-Compiled Executable Path Description
Stamp Put \Examples\FileFormats\C\StampPut \Bin\CDLL\<Win32/x64>\StampPut_Original.exe

Demonstrates converting a full sized image to a stamp with LEADTOOLS.

Loads an image from file, compresses the image to stamp size, loads the stamp to a bitmap, and displays the result.

Demo Name Source Code Path Description
Thread \Examples\FileFormats\C\Thread

Demonstrates multi-threading with LEADTOOLS

  • Creates a secondary thread to load all files in a directory
  • Paints images loaded on secondary thread in the main thread

For more information, refer to:

Introduction

Programming with LEADTOOLS NITF Functions

See Also

LEADTOOLS Support Forums

Help Version 22.0.2022.12.7
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.