A fast and easily customised operating system
for ARM devices
Key_Pressed
Programmer's Reference Manuals
» Part 7 - The Desktop
» The Window Manager
» SWI Calls
» Wimp_Poll
» Reason Codes
» Key_Pressed
Key_Pressed
(Reason Code 8)
| Exit | |
|---|---|
| Block | |
| +0 | Window handle with focus |
| +4 | Icon handle, or -1 if none |
| +8 | X offset of caret (relative to window origin) |
| +12 | Y offset of caret (relative to window origin) |
| +16 | Caret Flags |
| +20 | Index of caret into string (if icon) |
| +24 | Character Code (4 bytes) |
Use
This code is returned from Wimp_Poll and indicates that a key while a window belonging the application has the input focus.
Notes
If the application does not wish to act upon a keypress such as a hot key’, then they can be passed on to other applications by calling Wimp_ProcessKey.
If the caret is inside a writeable icon when a key is pressed, Wimp_Poll will not generate this code for Wimp Managed Key Presses?.
Wide characters are reported using multiple Key_Pressed events.