Unit 'go32' Package
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set_rm_interrupt

Set real mode interrupt handler.

Declaration

Source position: go32.pp line 136

function set_rm_interrupt(

  vector: Byte;

  const intaddr: tseginfo

):Boolean;

Description

Sets a real mode interrupt handler.

Parameters:

vector
the interrupt vector number to set.
intaddr
address of new interrupt vector.

Return values: True if successful, otherwise False.

Remark: The address supplied MUST be a real mode segment address, not a selector:offset address. So the interrupt handler must either reside in dos memory (below 1 Mb boundary) or the application must allocate a real mode callback address with get_rm_callback.

Errors

Check the int31error variable.

See also

get_rm_interrupt

  

Get real mode interrupt vector.

set_pm_interrupt

  

Set protected mode interrupt handler.

get_pm_interrupt

  

Return protected mode interrupt handler.

get_rm_callback

  

Return real mode callback.


Documentation generated on: Jul 24 2023