| 2ee739cc |
1 | /* |
| 2 | * nopoll.h |
| 3 | * |
| 4 | * [Generated from nopoll, 25 September 1996] |
| 5 | */ |
| 6 | |
| 7 | #if !defined(__CC_NORCROFT) || !defined(__arm) |
| 8 | #error You must use the Norcroft ARM Compiler for Sapphire programs |
| 9 | #endif |
| 10 | |
| 11 | #pragma include_only_once |
| 12 | #pragma force_top_level |
| 13 | |
| 14 | #ifndef __nopoll_h |
| 15 | #define __nopoll_h |
| 16 | |
| 17 | #ifndef __sapphire_h |
| 18 | #include "sapphire.h" |
| 19 | #endif |
| 20 | |
| 21 | /*----- Overview ----------------------------------------------------------* |
| 22 | * |
| 23 | * Functions provided: |
| 24 | * |
| 25 | * nopoll_open |
| 26 | * nopoll_close |
| 27 | * nopoll_init |
| 28 | * nopoll_process |
| 29 | */ |
| 30 | |
| 31 | /* --- nopoll_open --- * |
| 32 | * |
| 33 | * On entry: R0 == a window handle to take over |
| 34 | * |
| 35 | * On exit: -- |
| 36 | * |
| 37 | * Use: Sets up the window with the given handle to be a nonpolling |
| 38 | * dialogue box. The window must already be open on the screen. |
| 39 | * This call will force it to be painted on the screen, and |
| 40 | * then start faking events for it. |
| 41 | */ |
| 42 | |
| 43 | extern routine nopoll_open; |
| 44 | |
| 45 | /* --- nopoll_close --- * |
| 46 | * |
| 47 | * On entry: R0 == return value for nopoll_process (can be anything) |
| 48 | * |
| 49 | * On exit: -- |
| 50 | * |
| 51 | * Use: Tells nopoll that the nonpolling window has been killed, |
| 52 | * and hence that polling can return to normal again. You can |
| 53 | * specify a return value to give from nopoll_process (if that |
| 54 | * system is being used). |
| 55 | */ |
| 56 | |
| 57 | extern routine nopoll_close; |
| 58 | |
| 59 | /* --- nopoll_init --- * |
| 60 | * |
| 61 | * On entry: -- |
| 62 | * |
| 63 | * On exit: -- |
| 64 | * |
| 65 | * Use: Initialises nopoll so it can be used. |
| 66 | */ |
| 67 | |
| 68 | extern routine nopoll_init; |
| 69 | |
| 70 | /* --- nopoll_process --- * |
| 71 | * |
| 72 | * On entry: -- |
| 73 | * |
| 74 | * On exit: R0 == value passed to nopoll_close |
| 75 | * |
| 76 | * Use: Processes a nonpolling window until it calls nopoll_close. |
| 77 | * It then returns the value passed to nopoll_close in R0, |
| 78 | * which can be defined in any way you want. |
| 79 | * |
| 80 | * Some notes on the use of this routine: |
| 81 | * |
| 82 | * * It calls event_poll, so any functions that get called |
| 83 | * after the normal event_poll don't get called. Since the |
| 84 | * Wimp isn't actually being polled at all, this isn't a |
| 85 | * real problem as long as your handlers are registered at the |
| 86 | * event filter level or higher (e.g. win event handlers or |
| 87 | * even dbox handlers). |
| 88 | * |
| 89 | * * It uses up an extra 256 bytes of stack for a poll block. |
| 90 | * If you think you might miss this stack space, then you'd |
| 91 | * better not use this routine. |
| 92 | * |
| 93 | * * It isn't reentrant, but then again, nor is the rest of the |
| 94 | * nopoll system -- you can only have one nonpolling box open |
| 95 | * at a time. |
| 96 | */ |
| 97 | |
| 98 | extern routine nopoll_process; |
| 99 | |
| 100 | /*----- That's all, folks -------------------------------------------------*/ |
| 101 | |
| 102 | #endif |
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