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WINHLLAPI LANGUAGE REFERENCE
An application program must pass the following parameters when calling this
function:
Function 3
Data string
A string of maximum 255 characters (keystrokes)to be sent to the host PS.
The string must end with an EOT character if STREOT is set in Function 9.
Data length The string length. Overridden if STREOT is set in Function 9.
PS position
Reserved.
Return parameters
Result code
Function replaces the value of call parameter PS position with one of the following
codes:
Code
Description
0 The function was successful.
1 The application was not connected with a host PS.
2 An incorrect parameter was entered.
4 Host session was busy; not all keystrokes were sent.
5 Host session was inhibited, not all keystrokes were sent.
9 A system error occurred.
Example
Notes
WORD HllFunc = 3;
char HllDataStr[10];
/* Send "Hello" followed by Enter keystroke */
strcpy (HllDataStr, "Hello@E");
/* Length of data including Escape character */
WORD HllDataLgth = 7;
WORD PsPos;
WinHLLAPI(&HllFunc, HllDataStr, &HllDataLgth, &PsPos);
• For increased performance, an application may send entire strings using
Function 33, “Copy String to Field,” or Function 15, “Copy String to
Presentation Space,” rather than using this function; however, only function 3
may send special control keys.
• If the keystroke string is longer than 255 characters (which is the Send Key
function’s limit), use multiple calls to the Send Key function.
Prepared by Attachmate Technical Support 17