[ Previous |
Next |
Contents |
Glossary |
Home |
Search ]
AIX Version 4.3 Base Operating System and Extensions Technical Reference, Volume 1
IMProcess Subroutine
Purpose
Processes keyboard events and language-specific input.
Library
Input Method Library (libIM.a)
Note: This subroutine will be removed in future releases. Use the IMFilter and IMLookupString subroutines to process keyboard events.
Syntax
int IMProcess (IM, KeySymbol, State, String, Length)
IMObject IM;
KeySym KeySymbol;
uint State;
caddr_t *String;
uint *Length;
Description
This subroutine is a main entry point to the input method of the operating system. The IMProcess subroutine processes one keyboard event at a time. Processing proceeds as follows:
- Validates the IM parameter.
- Performs keyboard translation for all supported modifier states.
- Invokes internal function to do language-dependent processing.
- Performs any necessary callback functions depending on the internal state.
- Returns to application, setting the String and Length parameters appropriately.
Parameters
IM |
Specifies the input method instance. |
KeySymbol |
Defines the set of keyboard symbols that will be handled. |
State |
Specifies the state of the keyboard. |
String |
Holds the returned string. Returning a null value means that the input is used or discarded by the input method.
Note: The String parameter is not a null-terminated string.
|
Length |
Stores the length, in bytes, of the String parameter. |
Return Values
This subroutine returns the IMError global variable if an error occurs. The IMerrno global variable is set to indicate the error. Some of the variable values include:
IMError |
Error occurred during this subroutine. |
IMTextAndAuxiliaryOff |
No text string in the Text area, and the Auxiliary area is not shown. |
IMTextOn |
Text string in the Text area, but no Auxiliary area. |
IMAuxiliaryOn |
No text string in the Text area, and the Auxiliary area is shown. |
IMTextAndAuxiliaryOn |
Text string in the Text area, and the Auxiliary is shown. |
Implementation Specifics
This subroutine is part of Base Operating System (BOS) Runtime.
Related Information
The IMClose subroutine, IMCreate subroutine IMFilter subroutine, IMLookupString subroutine.
Input Method Overview and National Language Support Overview for Programming in AIX Version 4.3 General Programming Concepts: Writing and Debugging Programs.
[ Previous |
Next |
Contents |
Glossary |
Home |
Search ]