AllocRaster

Allocate space for a native bitplane.

This function calls the memory allocation routines to allocate memory space for a native bitplane "width" bits wide and "height" bits high.

width

number of columns in bitplane

height

number of rows in bitplane

planeptr

pointer to first word in bitplane, or NULL if it was not possible to allocate the desired amount of memory.

This function is only able to allocate memory for native, off-screen (non-displayable) bitmaps. It is not able to align memory correctly for all display modes, or RTG (retargetable graphics) modes. In almost all cases, AllocBitMap() should be preferred, as it ensures proper alignment, allocation and initialization of display memory that is to be attached to a ViewPort or Screen.

FreeRaster() graphics/gfx.h