Unit 'CYBERGRAPHICS'	Package
[Overview][Constants][Types][Procedures and functions][Variables][Index]	[#morphunits]

WritePixelArray

write the color value of a rectangular array

Declaration

Source position: cybergraphics.pas line 319

function WritePixelArray(

srcRect: POINTER;

SrcX: Word;

SrcY: Word;

SrcMod: Word;

a1arg: PRastPort;

DestX: Word;

DestY: Word;

SizeX: Word;

SizeY: Word;

SrcFormat: Byte

):LongWord;

Arguments

`srcRect`		pointer to an array of pixels from which to fetch the pixel data. The pixel format is specified in `SrcFormat`
`SrcX`		X starting point in the source rectangle
`SrcY`		Y starting point in the source rectangle
`SrcMod`		The number of bytes per row in the source rectangle.
`a1arg`		Pointer to a RastPort structure
`DestX`		X starting point in the RastPort
`DestY`		Y starting point in the RastPort
`SizeX`		Widht of the rectangle that should be transfered
`SizeY`		Height of the rectangle that should be transfered
`SrcFormat`		pixel format in the source rectangle. Currently supported formats are: RECTFMT_RGB, RECTFMT_RGBA, RECTFMT_ARGB, RECTFMT_LUT8, RECTFMT_GREY8

Function result

number of pixels plotted

Description

write the color value of a rectangular array of pixels starting at a specified x,y location and continuing through to another x,y location within a certain RastPort

For each pixel in a rectangular region, write the color value from a linear array of color values into the bitmap used to describe a particular rastport.

Attention

Only RECTFMT_LUT8 can be used on screen depths <= 8 bits. For > 8 bit rastport RECTFMT_LUT8 uses the actual colormap "attached" to the bitmap. If the bitmap is a friend bitmap of a screen bitmap or the screen bitmap itself, it uses the screen's viewport colormap.

Errors

The count value returned is totally wrong.