| Standard |
Enhanced |
|
| 1 |
1 |
A 1-character presentation space
short name (PSID). |
| 2–4 |
Reserved. |
| 2 |
5 |
S or A or M
- S =
- Synchronous. Control is not returned to the application until
the read is satisfied.
- A =
- Asynchronous. Control is returned immediately to the application,
can wait for the event object.
- M =
- Asynchronous. Control is returned immediately to the application,
can wait for the message.
|
| 6 |
Reserved. |
| 3–4 |
7–8 |
2-byte destination/origin ID. |
| 5–8 |
9–12 |
4-byte address of the buffer into
which the data is to be read. The buffer must be obtained using the Allocate Communications Buffer (123) function. |
| 9–10 |
13–16 |
Reserved. |
| 11–12 |
17–20 |
When M is specified in position 2
the window handle of the window that receives the message should be
set. The message is a return value of RegisterWindowMessage (“PCSHLL”)(not
equal 0). |
| 13–14 |
The data in these positions is ignored
by EHLLAPI. However, no error is caused if the migrating program has
data in these positions. This data is accepted to provide compatibility
with migrating applications. |