block.h File Reference

read or write a block of screen memory More...

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Functions
void __FAR *	block_read (struct box const *const i_box)
	read a block of screen memory More...
void	block_write (void const __FAR *i_block, struct box const *const i_box)
	write a block of screen memory More...
void	block_free (void __FAR *i_block)

Detailed Description

read or write a block of screen memory

The block_read and block_write routines are typically used in the library to save and restore the background of popups.

Function Documentation

block_free()

void block_free

(

void __FAR *

i_block

)

Parameters

[in]

i_block

block to release

Returns

none

block_read()

void __FAR * block_read

(

struct box const *const

i_box

)

read a block of screen memory

Parameters

[in]

i_box

region of screen to read

Returns

0 failure unable to allocate memory

!0 pointer to memory block

block_write()

void block_write	(	void const __FAR *	i_block,
		struct box const *const	i_box
	)

write a block of screen memory

Parameters

[in]	i_block	memory bock to write
[in]	i_box	region to write block

Returns

none