Imaging.pas Functions

Functions

CloneImage	Creates identical copy of image data.
ConvertImage	Converts image to the given format.
CopyPalette	Copies Count palette entries from SrcPal starting at index SrcIdx to DstPal at index DstPal.
CopyRect	Copies rectangular part of SrcImage to DstImage.
DetermineFileFormat	Checks given file for every supported image file format and if the file is in one of them returns its string identifier (which can be used in LoadFromStream/LoadFromMem type functions).
DetermineMemoryFormat	Checks given memory for every supported image file format and if the memory is in one of them returns its string identifier (which can be used in LoadFromStream/LoadFromMem type functions).
DetermineStreamFormat	Checks given stream for every supported image file format and if the stream is in one of them returns its string identifier (which can be used in LoadFromStream/LoadFromMem type functions).
EnumFileFormats	Enumerates all registered image file formats.
FillCustomPalette	Creates palette with given bitcount for each channel.
FillGrayscalePalette	Creates grayscale palette where each color channel has the same value.
FillRect	Fills given rectangle of image with given pixel fill data.
FindColor	Returns index of color in palette or index of nearest color if exact match is not found.
FindImageFileFormatByClass	Returns image format loader/saver based on its class or nil if not found or not registered.
FindImageFileFormatByExt	Returns image format loader/saver according to given extension or nil if not found.
FindImageFileFormatByName	Returns image format loader/saver according to given filename or nil if not found.
FlipImage	Flips given image.
FreeImage	Frees given image data.
FreeImagesInArray	Call FreeImage() on all images in given dynamic array and sets its length to zero.
FreePalette	Frees given palette.
GenerateMipMaps	Generates mipmaps for image.
GetFileFormatAtIndex	Returns image file format loader/saver at given index.
GetFileFormatCount	Returns number of registered image file format loaders/saver.
GetFileNameFilterIndex	Returns filter index of image file format of file specified by FileName.
GetFilterIndexExtension	Returns file extension (without dot) of image format selected by given filter index.
GetFormatName	Returns symbolic name of given format.
GetImageFileFormatsFilter	Returns filter string for usage with open and save picture dialogs which contains all registered image file formats.
GetImageFormatInfo	Returns short information about given image format.
GetIO	Returns current IO functions.
GetOption	Returns value of integer option specified by OptionId parameter.
GetPixel32	Function for getting pixel colors.
GetPixelDirect	Copies pixel of Image at [X, Y] to memory pointed at by Pixel.
GetPixelFP	Function for getting pixel colors.
GetPixelsSize	Returns size in bytes of Width x Height area of pixels.
GetVersionStr	Returns Imaging version string in format 'Major.Minor.Patch'.
IffFormat	If Condition is True then TruePart is retured, otherwise FalsePart is returned.
ImageToStr	Returns string with information about given Image.
InitImage	Initializes image (all is set to zeroes).
IsFileFormatSupported	Checks that an apropriate file format is supported purely from inspecting the given file name's extension (not contents of the file itself).
LoadImageFromFile	Loads single image from given file.
LoadImageFromMemory	Loads single image from given memory location.
LoadImageFromStream	Loads single image from given stream.
LoadMultiImageFromFile	Loads multiple images from given file.
LoadMultiImageFromMemory	Loads multiple images from given memory location.
LoadMultiImageFromStream	Loads multiple images from given stream.
MakePaletteForImages	Creates palette with MaxColors based on the colors of images in Images array.
MapImageToPalette	Maps image to existing palette producing image in ifIndex8 format.
MirrorImage	Mirrors given image.
NewImage	Creates empty image of given dimensions and format.
NewPalette	Allocates new palette with Entries ARGB color entries.
PopOptions	Pops back values of all options from the top of the stack.
PushOptions	Pushes current values of all options on the stack.
RaiseImaging	Raises EImagingError with given message.
ReduceColors	Reduces the number of colors of the Image.
RegisterImageFileFormat	Registers new image loader/saver so it can be used by LoadFrom/SaveTo functions.
RegisterOption	Registers new option so it can be used by SetOption and GetOption functions.
ReplaceColor	Replaces pixels with OldPixel in the given rectangle by NewPixel.
ResetFileIO	Sets file IO functions to Imaging default.
ResizeImage	Resizes given image to new dimensions.
RotateImage	Rotates image by Angle degrees counterclockwise.
SaveImageToFile	Saves single image to given file.
SaveImageToMemory	Saves single image to given memory location.
SaveImageToStream	Saves single image to given stream.
SaveMultiImageToFile	Saves multiple images to given file.
SaveMultiImageToMemory	Saves multiple images to given memory location.
SaveMultiImageToStream	Saves multiple images to given stream.
SetOption	Sets value of integer option specified by OptionId parameter.
SetPixel32	Procedure for setting pixel colors.
SetPixelDirect	Copies pixel from memory pointed at by Pixel to Image at position [X, Y].
SetPixelFP	Procedure for setting pixel colors.
SetUserFileIO	User can set his own file IO functions used when loading from/saving to files by this function.
SplitImage	Splits image into XChunks x YChunks subimages.
StretchRect	Stretches the contents of the source rectangle to the destination rectangle with optional resampling.
SwapChannels	Swaps SrcChannel and DstChannel color or alpha channels of image.
SwapChannelsOfPalette	Swaps SrcChannel and DstChannel color or alpha channels of palette.
TestImage	Returns True if given TImageData record is valid.
TestImagesInArray	Returns True if all TImageData records in given array are valid.