WritePort
Write data to PC port
Declaration
Source position: x86.pp line 34
procedure WritePort(Port: LongInt; Value: Byte);
procedure WritePort(Port: LongInt; Value: LongInt);
procedure WritePort(Port: LongInt; Value: Word);
Description
WritePort writes Value -- 1 byte, Word or longint -- to port Port.
Remark
You need permission to write to a port. This permission can be set with root permission with the FpIOPerm call. !!!
Errors
In case of an error (not enough permissions to write to this port), runtime 216 (Access Violation) will occur.
See also
| Name | Description |
|---|---|
| FpIOPerm | Set permission on IO ports |
| ReadPortB | Read bytes from a PC port |
| ReadPortL | Read longints from a PC port |
| ReadPortW | Read Words from a PC port |
| WritePortB | Write byte to PC port |
| WritePortL | Write longint to PC port. |
| WritePortW | Write Word to PC port |