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This section provides referential information about ImageGear for C and C++.

• Understanding Bitmap Images
• • Pixels
  • Channels
  • Color Spaces
  • 24-bit RGB Images
  • 1-bit Images
  • 4-bit and 8-bit Images
  • Grayscale Images
  • Color Values Used During Display
  • Device-Independent/Device-Dependent Bitmaps
  • • Device-Independent Bitmaps (DIB)
    • Device-Dependent Bitmaps (DDBs)
    • Vector Images
  • ImageGear Architecture Diagram
• Working with File Names with Unicode Symbols
• Glossary
• • ImageGear Licensing and Deployment Kit Terminology
• Bibliography
• Migrating from ImageGear v14
• • Summary of Changes
  • Getting a Pointer to the DIB (the old way)
  • The DIB Info Object - HIGDIBINFO
  • Retrieving DIB Information
  • biBitCount - Retrieving Bit Depths
  • biCompression - Retrieving Compression Type / Color Space
  • Method 1: Exporting and Importing DIBs
  • Method 2: Pixel Access Functions
  • Method 3: Accessing Pixel Data Directly
  • Working with Alpha/Extra Channels
  • • Option 1: Make your pixel access code aware of alpha/extra channels.
    • Option 2: Remove alpha/extra channels before doing pixel access.
  • Working with Variable Channel Depths
  • Pixel Access Examples
  • • Image Creation Helper Function (used by the functions that follow)
    • Using Pixel Access Functions in Legacy Mode
    • Using Pixel Access Functions in New Mode
    • Using Direct Access via IG_image_DIB_raster_pntr_get (called for each raster)
    • Using Direct Access via IG_image_DIB_raster_pntr_get (called only once)

 

 

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