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Wimp/!WimpC/c/!RunImage
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199604.adf » Features |
| Filename: | Wimp/!WimpC/c/!RunImage |
| Read OK: | ✔ |
| File size: | 2E1A bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
/* An example program which makes use of the kernel SWI calls -
this will compile with Acorn's C as well as Beebug's EasyC */
/* by Steve Mumford for Acorn User - April 1996 */
#include <stdio.h>
#include <string.h>
#include "swis.h"
#include "kernel.h"
/* We also define a poll mask here to tell the WIMP about any events we're not
intererested in */
#define POLL_MASK 1
#define WORKSPACE_SIZE 1024
/* If we set QUIT_FLAG up as a global variable, it means that we can change it
anywhere within the program and shut things down next time we end the
polling loop */
int QUIT_FLAG = 0;
int MAINWIN_HANDLE = 0;
int DISPLAY_ICON = 1;
char appname[] = "WIMPC Example";
unsigned char mainwin_buffer[WORKSPACE_SIZE];
unsigned char mainwin_workspace[WORKSPACE_SIZE];
/* Function prototyping */
int main(void);
void wimpmsg(int, unsigned char[]);
unsigned long int btow(unsigned char[], int);
void wtob(unsigned long int, unsigned char[], int);
void mouseclick(unsigned char[]);
int report_error(int, char[], int);
int load_templates(void);
void openwindow(unsigned char[]);
void closewindow(unsigned char[]);
char * geticontextpointer(unsigned long int, unsigned long int);
void iconchange(char *, unsigned long int, unsigned long int);
/* Program functions */
int
main(void) {
int task_handle;
unsigned char pollblock[257];
/* essentially a byte array large enough for our polling block */
unsigned char iconblock[40];
int ibar_icon_handle;
/* A block to hold our icon data, and a variable to store its handle */
int pollresult;
_kernel_swi_regs regs_in, regs_out;
char ibar_sprname[] = "!wimpc";
/* The above line specifies the name of the sprite in the wimp pool that
we are to use on the icon bar */
long int msglist[1] = {0};
/* Now to initialise ourselves as a task */
regs_in.r[0] = 310;
regs_in.r[1] = *(int *)"TASK";
regs_in.r[2] = (int) appname;
regs_in.r[3] = (int) msglist;
/* We need to supply our chosen RISC OS version number, the "TASK"
identifier to prove we're a multitasking application, a pointer to
our application name and a pointer to a message list - converted to
integer format as necessary */
/* now to perform the actual SWI call */
_kernel_swi(Wimp_Initialise, ®s_in, ®s_out);
task_handle = regs_out.r[1]; /* determine our task handle for later use */
/* Now, we'll put an icon on the icon bar - we need to have defined an
icon block, whose address we pass in R1 */
wtob(-1, iconblock, 0); /* Specify position on the icon bar (the right) */
wtob(0, iconblock, 4); /* These four lines give the bounding box of the */
wtob(0, iconblock, 8); /* icon - min x, min y, max x, max y */
wtob(72, iconblock, 12);
wtob(72, iconblock, 16);
wtob(12314, iconblock, 20);
/* set bits 1, 3, 4, 12, 13 of icon flags - bit 1 - the icon is a sprite;
bits 3, 4 centre the sprite in the bounding box; bits 12 and 13 inform the
WIMP to let us know when our icon is clicked on, by passing us a
Mouse_Click event */
strcpy( (char *) &iconblock[24], ibar_sprname);
/* Finally, copy the name of the sprite we are to use into the datablock;
this must be terminated with a control character */
regs_in.r[0] = 0; /* set the icon's priority */
regs_in.r[1] = (int) iconblock;
_kernel_swi(Wimp_CreateIcon, ®s_in, ®s_out);
ibar_icon_handle = regs_out.r[0];
/* Now open a template file ready for loading */
load_templates();
do {
regs_in.r[0] = POLL_MASK;
regs_in.r[1] = (int) pollblock; /* a pointer to our data block */
_kernel_swi(Wimp_Poll, ®s_in, ®s_out);
pollresult = regs_out.r[0]; /* determine the event code */
switch (pollresult) {
case 2: openwindow(pollblock);
break;
case 3: closewindow(pollblock);
break;
case 6: mouseclick(pollblock);
break;
/* If our icon is clicked on, we jump to mouseclick() */
case 17:
case 18:
case 19: wimpmsg(pollresult, pollblock);
break;
/* The above section listens for event codes 17, 18 and 19 - the
ones which indicate we're being sent a message */
}
} while (QUIT_FLAG == 0);
/* If QUIT_FLAG changes to anything but 0, we stop going round the polling
loop and shut down */
regs_in.r[0] = task_handle;
regs_in.r[1] = *(int *)"TASK";
_kernel_swi(Wimp_CloseDown, ®s_in, ®s_out);
/* And that's it - we've told the WIMP that we've finished, and now the
program terminates. */
}
void
wimpmsg(int result, unsigned char pollblock[])
{
unsigned long int message_action;
/* The next line takes bytes 16 to 19 of the polling block and forms them
into a word holding the message action number */
message_action = btow(pollblock, 16);
switch (message_action) {
case 0: QUIT_FLAG = 1; /* Message_Quit - time to go */
break;
case 0x400c2: iconchange((char *) &pollblock[28], MAINWIN_HANDLE, DISPLAY_ICON);
break;
/* More message actions can be added here */
}
}
unsigned long int
btow(unsigned char block[], int index)
{
unsigned long int result = 0;
int loop;
/* This routine takes a data block and a starting byte, and converts the
next four bytes into a word - we have to start at the most significant
byte and work backwards */
index += 3;
result = block[index--];
for(loop = 0; loop < 3; loop++) {
result = result << 8;
/* this shifts the bits in result left by 8 spaces */
result += block[index--];
}
return (result);
}
void
wtob(unsigned long int input, unsigned char block[], int index)
{
unsigned long int mask = 255;
/* The opposite of btow() - this function takes a 32-bit integer, splits
it up into 4 bytes, and stores those in 4 consecutive cells of a
character array indexed by index. This is done by using a mask to
extract the data in sequence, with the & bitwise-and operator */
/* get first byte */
block[index++] = (char) (input & mask);
/* shift mask to get second byte, and supply result as byte size */
mask <<= 8;
block[index++] = (char) ((input & mask) >> 8);
mask <<= 8;
block[index++] = (char) ((input & mask) >> 16);
mask <<= 8;
block[index++] = (char) ((input & mask) >> 24);
return;
}
void
mouseclick(unsigned char pollblock[])
{
/* We've received a mouse_click event - in more complex systems, we would
now decide what had been clicked on, but here all we have to do is
prove that we've heard it. */
char message[255];
/* A buffer to hold an 'error' message */
int result, clk;
_kernel_swi_regs in, out;
unsigned char temp_buffer[255];
/* Determine which button was pressed */
clk = (int) btow(pollblock, 8);
/* If the 'Select' button was clicked on the icon bar (pollblock + 12 = -2)
then re-open main window and return */
if((btow(pollblock, 12) == -2) && (clk == 4)) {
wtob(MAINWIN_HANDLE, temp_buffer, 0);
in.r[1] = (int) temp_buffer;
_kernel_swi(Wimp_GetWindowInfo, &in, &out);
_kernel_swi(Wimp_OpenWindow, &in, &out);
return;
}
strcpy(message, "Mouse click detected (type");
sprintf(message, "%s %d) - do you wish to stop the program?", message, clk);
/* The above lines compile an error message using standard string
functions */
result = report_error(1, message, 3);
/* This calls a function to display an error box on the screen - if the
user clicks on OK, the program terminates */
if (result == 1) QUIT_FLAG = 1;
}
int
report_error(int errno, char errmess[], int flags)
{
unsigned char errorblock[260];
_kernel_swi_regs in, out;
/* Set up the standard error block with the error number and message
(zero terminated) */
wtob(errno, errorblock, 0);
strcpy( (char *) &errorblock[4], errmess);
/* R0 - pointer to standard error block
R1 - error window flags
R2 - pointer to application name for error box title */
in.r[0] = (int) errorblock;
in.r[1] = flags;
in.r[2] = (int) appname;
_kernel_swi(Wimp_ReportError, &in, &out);
/* Returns 1 if OK selected, 2 if Cancel selected */
return out.r[1];
}
int
load_templates(void)
{
char template_filename[] = "<WimpC$Dir>.Templates";
char template_name[] = "MainWindow\0";
unsigned char openwindow_buffer[36];
_kernel_swi_regs in, out;
int loop = 0;
/* This SWI call prepares a template file for reading */
in.r[1] = (int) template_filename;
_kernel_swi(Wimp_OpenTemplate, &in, &out);
/* Now we load the template data */
in.r[1] = (int) mainwin_buffer;
in.r[2] = (int) mainwin_workspace;
in.r[3] = (int) mainwin_workspace + WORKSPACE_SIZE;
in.r[4] = -1; /* No fonts used */
in.r[5] = (int) template_name;
in.r[6] = 0;
_kernel_swi(Wimp_LoadTemplate, &in, &out);
if(out.r[6] == 0) {
if(report_error(1, "Template not found!", 3) == 1) QUIT_FLAG =1;
}
/* Now we've finished reading the templates, close the file */
_kernel_swi(Wimp_CloseTemplate, &in, &out);
/* Create the window using the data we've just loaded and store the
returned window handle in a global variable */
in.r[1] = (int) mainwin_buffer;
_kernel_swi(Wimp_CreateWindow, &in, &out);
MAINWIN_HANDLE = out.r[0];
/* Copy the position data of the window into a buffer so that we can
open the window at that position */
wtob(out.r[0], openwindow_buffer, 0);
for(loop = 0; loop < 6; loop++) {
wtob(btow(mainwin_buffer, loop*4), openwindow_buffer, (loop+1) * 4);
}
/* Putting -1 here means the window is opened in front of all others */
wtob(-1, openwindow_buffer, 28);
in.r[1] = (int) openwindow_buffer;
_kernel_swi(Wimp_OpenWindow, &in, &out);
return 0;
}
void openwindow(unsigned char pollblock[])
{
_kernel_swi_regs in, out;
in.r[1] = (int) pollblock;
_kernel_swi(Wimp_OpenWindow, &in, &out);
return;
}
void closewindow(unsigned char pollblock[])
{
_kernel_swi_regs in, out;
in.r[1] = (int) pollblock;
_kernel_swi(Wimp_CloseWindow, &in, &out);
return;
}
char *
geticontextpointer(unsigned long int winhdl, unsigned long int iconhdl)
{
/* This procedure interrogates an icon to determine the address where its
indirected text data is stored in memory, and returns it */
unsigned char temp_buffer[255];
_kernel_swi_regs in, out;
char *result;
wtob(winhdl, temp_buffer, 0);
wtob(iconhdl, temp_buffer, 4);
in.r[1] = (int) temp_buffer;
_kernel_swi(Wimp_GetIconState, &in, &out);
result = (char *) btow(temp_buffer, 28);
return result;
}
void iconchange(char *text, unsigned long int win_h, unsigned long int icon_h)
{
_kernel_swi_regs in, out;
char *tpointer;
unsigned char temp_buffer[255];
/* Find out where the icon's indirected text is stored in memory and copy
a new string to it */
tpointer = geticontextpointer(win_h, icon_h);
strcpy(tpointer, text);
/* Now we need to inform the WIMP that the icon needs redrawing by setting
the icon flags - we don't actually change them with this call, but this
spurs the WIMP into action */
wtob(win_h, temp_buffer, 0);
wtob(icon_h, temp_buffer, 4);
wtob(0, temp_buffer, 8);
wtob(0, temp_buffer, 12);
in.r[1] = (int) temp_buffer;
_kernel_swi(Wimp_SetIconState, &in, &out);
return;
}
00000000 2f 2a 20 41 6e 20 65 78 61 6d 70 6c 65 20 70 72 |/* An example pr|
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00000030 6e 65 6c 20 53 57 49 20 63 61 6c 6c 73 20 2d 0a |nel SWI calls -.|
00000040 20 20 20 74 68 69 73 20 77 69 6c 6c 20 63 6f 6d | this will com|
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00000060 73 20 43 20 61 73 20 77 65 6c 6c 20 61 73 20 42 |s C as well as B|
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00000080 0a 2f 2a 20 62 79 20 53 74 65 76 65 20 4d 75 6d |./* by Steve Mum|
00000090 66 6f 72 64 20 66 6f 72 20 41 63 6f 72 6e 20 55 |ford for Acorn U|
000000a0 73 65 72 20 2d 20 41 70 72 69 6c 20 31 39 39 36 |ser - April 1996|
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000000c0 74 64 69 6f 2e 68 3e 0a 23 69 6e 63 6c 75 64 65 |tdio.h>.#include|
000000d0 20 3c 73 74 72 69 6e 67 2e 68 3e 0a 23 69 6e 63 | <string.h>.#inc|
000000e0 6c 75 64 65 20 22 73 77 69 73 2e 68 22 0a 23 69 |lude "swis.h".#i|
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00000100 22 0a 0a 2f 2a 20 57 65 20 61 6c 73 6f 20 64 65 |"../* We also de|
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00000250 4c 41 47 20 3d 20 30 3b 0a 69 6e 74 20 4d 41 49 |LAG = 0;.int MAI|
00000260 4e 57 49 4e 5f 48 41 4e 44 4c 45 20 3d 20 30 3b |NWIN_HANDLE = 0;|
00000270 0a 69 6e 74 20 44 49 53 50 4c 41 59 5f 49 43 4f |.int DISPLAY_ICO|
00000280 4e 20 3d 20 31 3b 0a 63 68 61 72 20 61 70 70 6e |N = 1;.char appn|
00000290 61 6d 65 5b 5d 20 3d 20 22 57 49 4d 50 43 20 45 |ame[] = "WIMPC E|
000002a0 78 61 6d 70 6c 65 22 3b 0a 75 6e 73 69 67 6e 65 |xample";.unsigne|
000002b0 64 20 63 68 61 72 20 6d 61 69 6e 77 69 6e 5f 62 |d char mainwin_b|
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000002d0 53 49 5a 45 5d 3b 0a 75 6e 73 69 67 6e 65 64 20 |SIZE];.unsigned |
000002e0 63 68 61 72 20 6d 61 69 6e 77 69 6e 5f 77 6f 72 |char mainwin_wor|
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00000300 5f 53 49 5a 45 5d 3b 0a 0a 2f 2a 20 46 75 6e 63 |_SIZE];../* Func|
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00000350 75 6e 73 69 67 6e 65 64 20 63 68 61 72 5b 5d 29 |unsigned char[])|
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000003d0 20 20 20 6d 6f 75 73 65 63 6c 69 63 6b 28 75 6e | mouseclick(un|
000003e0 73 69 67 6e 65 64 20 63 68 61 72 5b 5d 29 3b 0a |signed char[]);.|
000003f0 69 6e 74 20 20 20 20 20 20 72 65 70 6f 72 74 5f |int report_|
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00000410 5d 2c 20 69 6e 74 29 3b 0a 69 6e 74 20 20 20 20 |], int);.int |
00000420 20 20 6c 6f 61 64 5f 74 65 6d 70 6c 61 74 65 73 | load_templates|
00000430 28 76 6f 69 64 29 3b 0a 76 6f 69 64 20 20 20 20 |(void);.void |
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000004d0 20 69 63 6f 6e 63 68 61 6e 67 65 28 63 68 61 72 | iconchange(char|
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00000530 64 29 20 7b 0a 20 20 20 20 69 6e 74 20 74 61 73 |d) {. int tas|
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00000550 73 69 67 6e 65 64 20 63 68 61 72 20 20 20 70 6f |signed char po|
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00000570 20 20 2f 2a 20 65 73 73 65 6e 74 69 61 6c 6c 79 | /* essentially|
00000580 20 61 20 62 79 74 65 20 61 72 72 61 79 20 6c 61 | a byte array la|
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000005a0 75 72 20 70 6f 6c 6c 69 6e 67 20 62 6c 6f 63 6b |ur polling block|
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000005c0 64 20 63 68 61 72 20 20 69 63 6f 6e 62 6c 6f 63 |d char iconbloc|
000005d0 6b 5b 34 30 5d 3b 0a 20 20 20 20 69 6e 74 20 69 |k[40];. int i|
000005e0 62 61 72 5f 69 63 6f 6e 5f 68 61 6e 64 6c 65 3b |bar_icon_handle;|
000005f0 0a 20 20 20 20 2f 2a 20 41 20 62 6c 6f 63 6b 20 |. /* A block |
00000600 74 6f 20 68 6f 6c 64 20 6f 75 72 20 69 63 6f 6e |to hold our icon|
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00000620 69 61 62 6c 65 20 74 6f 20 73 74 6f 72 65 20 69 |iable to store i|
00000630 74 73 20 68 61 6e 64 6c 65 20 2a 2f 0a 0a 20 20 |ts handle */.. |
00000640 20 20 69 6e 74 20 70 6f 6c 6c 72 65 73 75 6c 74 | int pollresult|
00000650 3b 0a 20 20 20 20 5f 6b 65 72 6e 65 6c 5f 73 77 |;. _kernel_sw|
00000660 69 5f 72 65 67 73 20 20 20 20 72 65 67 73 5f 69 |i_regs regs_i|
00000670 6e 2c 20 72 65 67 73 5f 6f 75 74 3b 0a 20 20 20 |n, regs_out;. |
00000680 20 63 68 61 72 20 69 62 61 72 5f 73 70 72 6e 61 | char ibar_sprna|
00000690 6d 65 5b 5d 20 3d 20 22 21 77 69 6d 70 63 22 3b |me[] = "!wimpc";|
000006a0 0a 0a 20 20 20 20 2f 2a 20 54 68 65 20 61 62 6f |.. /* The abo|
000006b0 76 65 20 6c 69 6e 65 20 73 70 65 63 69 66 69 65 |ve line specifie|
000006c0 73 20 74 68 65 20 6e 61 6d 65 20 6f 66 20 74 68 |s the name of th|
000006d0 65 20 73 70 72 69 74 65 20 69 6e 20 74 68 65 20 |e sprite in the |
000006e0 77 69 6d 70 20 70 6f 6f 6c 20 74 68 61 74 0a 20 |wimp pool that. |
000006f0 20 20 20 20 20 20 77 65 20 61 72 65 20 74 6f 20 | we are to |
00000700 75 73 65 20 6f 6e 20 74 68 65 20 69 63 6f 6e 20 |use on the icon |
00000710 62 61 72 20 2a 2f 0a 0a 20 20 20 20 6c 6f 6e 67 |bar */.. long|
00000720 20 69 6e 74 20 20 20 20 6d 73 67 6c 69 73 74 5b | int msglist[|
00000730 31 5d 20 3d 20 7b 30 7d 3b 0a 0a 20 20 20 20 2f |1] = {0};.. /|
00000740 2a 20 4e 6f 77 20 74 6f 20 69 6e 69 74 69 61 6c |* Now to initial|
00000750 69 73 65 20 6f 75 72 73 65 6c 76 65 73 20 61 73 |ise ourselves as|
00000760 20 61 20 74 61 73 6b 20 2a 2f 0a 20 20 20 20 72 | a task */. r|
00000770 65 67 73 5f 69 6e 2e 72 5b 30 5d 20 3d 20 33 31 |egs_in.r[0] = 31|
00000780 30 3b 0a 20 20 20 20 72 65 67 73 5f 69 6e 2e 72 |0;. regs_in.r|
00000790 5b 31 5d 20 3d 20 2a 28 69 6e 74 20 2a 29 22 54 |[1] = *(int *)"T|
000007a0 41 53 4b 22 3b 0a 20 20 20 20 72 65 67 73 5f 69 |ASK";. regs_i|
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000026b0 20 20 20 20 20 20 20 77 74 6f 62 28 62 74 6f 77 | wtob(btow|
000026c0 28 6d 61 69 6e 77 69 6e 5f 62 75 66 66 65 72 2c |(mainwin_buffer,|
000026d0 20 6c 6f 6f 70 2a 34 29 2c 20 6f 70 65 6e 77 69 | loop*4), openwi|
000026e0 6e 64 6f 77 5f 62 75 66 66 65 72 2c 20 28 6c 6f |ndow_buffer, (lo|
000026f0 6f 70 2b 31 29 20 2a 20 34 29 3b 0a 20 20 20 20 |op+1) * 4);. |
00002700 7d 0a 20 20 20 20 2f 2a 20 50 75 74 74 69 6e 67 |}. /* Putting|
00002710 20 2d 31 20 68 65 72 65 20 6d 65 61 6e 73 20 74 | -1 here means t|
00002720 68 65 20 77 69 6e 64 6f 77 20 69 73 20 6f 70 65 |he window is ope|
00002730 6e 65 64 20 69 6e 20 66 72 6f 6e 74 20 6f 66 20 |ned in front of |
00002740 61 6c 6c 20 6f 74 68 65 72 73 20 2a 2f 0a 20 20 |all others */. |
00002750 20 20 77 74 6f 62 28 2d 31 2c 20 6f 70 65 6e 77 | wtob(-1, openw|
00002760 69 6e 64 6f 77 5f 62 75 66 66 65 72 2c 20 32 38 |indow_buffer, 28|
00002770 29 3b 0a 20 20 20 20 69 6e 2e 72 5b 31 5d 20 3d |);. in.r[1] =|
00002780 20 28 69 6e 74 29 20 6f 70 65 6e 77 69 6e 64 6f | (int) openwindo|
00002790 77 5f 62 75 66 66 65 72 3b 0a 20 20 20 20 5f 6b |w_buffer;. _k|
000027a0 65 72 6e 65 6c 5f 73 77 69 28 57 69 6d 70 5f 4f |ernel_swi(Wimp_O|
000027b0 70 65 6e 57 69 6e 64 6f 77 2c 20 26 69 6e 2c 20 |penWindow, &in, |
000027c0 26 6f 75 74 29 3b 0a 20 20 20 20 72 65 74 75 72 |&out);. retur|
000027d0 6e 20 30 3b 0a 7d 0a 0a 76 6f 69 64 20 6f 70 65 |n 0;.}..void ope|
000027e0 6e 77 69 6e 64 6f 77 28 75 6e 73 69 67 6e 65 64 |nwindow(unsigned|
000027f0 20 63 68 61 72 20 70 6f 6c 6c 62 6c 6f 63 6b 5b | char pollblock[|
00002800 5d 29 0a 7b 0a 20 20 20 5f 6b 65 72 6e 65 6c 5f |]).{. _kernel_|
00002810 73 77 69 5f 72 65 67 73 20 69 6e 2c 20 6f 75 74 |swi_regs in, out|
00002820 3b 0a 0a 20 20 20 69 6e 2e 72 5b 31 5d 20 3d 20 |;.. in.r[1] = |
00002830 28 69 6e 74 29 20 70 6f 6c 6c 62 6c 6f 63 6b 3b |(int) pollblock;|
00002840 0a 20 20 20 5f 6b 65 72 6e 65 6c 5f 73 77 69 28 |. _kernel_swi(|
00002850 57 69 6d 70 5f 4f 70 65 6e 57 69 6e 64 6f 77 2c |Wimp_OpenWindow,|
00002860 20 26 69 6e 2c 20 26 6f 75 74 29 3b 0a 20 20 20 | &in, &out);. |
00002870 72 65 74 75 72 6e 3b 0a 7d 0a 0a 76 6f 69 64 20 |return;.}..void |
00002880 63 6c 6f 73 65 77 69 6e 64 6f 77 28 75 6e 73 69 |closewindow(unsi|
00002890 67 6e 65 64 20 63 68 61 72 20 70 6f 6c 6c 62 6c |gned char pollbl|
000028a0 6f 63 6b 5b 5d 29 0a 7b 0a 20 20 20 5f 6b 65 72 |ock[]).{. _ker|
000028b0 6e 65 6c 5f 73 77 69 5f 72 65 67 73 20 69 6e 2c |nel_swi_regs in,|
000028c0 20 6f 75 74 3b 0a 0a 20 20 20 69 6e 2e 72 5b 31 | out;.. in.r[1|
000028d0 5d 20 3d 20 28 69 6e 74 29 20 70 6f 6c 6c 62 6c |] = (int) pollbl|
000028e0 6f 63 6b 3b 0a 20 20 20 5f 6b 65 72 6e 65 6c 5f |ock;. _kernel_|
000028f0 73 77 69 28 57 69 6d 70 5f 43 6c 6f 73 65 57 69 |swi(Wimp_CloseWi|
00002900 6e 64 6f 77 2c 20 26 69 6e 2c 20 26 6f 75 74 29 |ndow, &in, &out)|
00002910 3b 0a 20 20 20 72 65 74 75 72 6e 3b 0a 7d 0a 0a |;. return;.}..|
00002920 63 68 61 72 20 2a 0a 67 65 74 69 63 6f 6e 74 65 |char *.geticonte|
00002930 78 74 70 6f 69 6e 74 65 72 28 75 6e 73 69 67 6e |xtpointer(unsign|
00002940 65 64 20 6c 6f 6e 67 20 69 6e 74 20 77 69 6e 68 |ed long int winh|
00002950 64 6c 2c 20 75 6e 73 69 67 6e 65 64 20 6c 6f 6e |dl, unsigned lon|
00002960 67 20 69 6e 74 20 69 63 6f 6e 68 64 6c 29 0a 7b |g int iconhdl).{|
00002970 0a 20 20 20 2f 2a 20 54 68 69 73 20 70 72 6f 63 |. /* This proc|
00002980 65 64 75 72 65 20 69 6e 74 65 72 72 6f 67 61 74 |edure interrogat|
00002990 65 73 20 61 6e 20 69 63 6f 6e 20 74 6f 20 64 65 |es an icon to de|
000029a0 74 65 72 6d 69 6e 65 20 74 68 65 20 61 64 64 72 |termine the addr|
000029b0 65 73 73 20 77 68 65 72 65 20 69 74 73 0a 20 20 |ess where its. |
000029c0 20 20 20 20 69 6e 64 69 72 65 63 74 65 64 20 74 | indirected t|
000029d0 65 78 74 20 64 61 74 61 20 69 73 20 73 74 6f 72 |ext data is stor|
000029e0 65 64 20 69 6e 20 6d 65 6d 6f 72 79 2c 20 61 6e |ed in memory, an|
000029f0 64 20 72 65 74 75 72 6e 73 20 69 74 20 2a 2f 0a |d returns it */.|
00002a00 0a 20 20 20 75 6e 73 69 67 6e 65 64 20 63 68 61 |. unsigned cha|
00002a10 72 20 74 65 6d 70 5f 62 75 66 66 65 72 5b 32 35 |r temp_buffer[25|
00002a20 35 5d 3b 0a 20 20 20 5f 6b 65 72 6e 65 6c 5f 73 |5];. _kernel_s|
00002a30 77 69 5f 72 65 67 73 20 69 6e 2c 20 6f 75 74 3b |wi_regs in, out;|
00002a40 0a 20 20 20 63 68 61 72 20 2a 72 65 73 75 6c 74 |. char *result|
00002a50 3b 0a 0a 20 20 20 77 74 6f 62 28 77 69 6e 68 64 |;.. wtob(winhd|
00002a60 6c 2c 20 74 65 6d 70 5f 62 75 66 66 65 72 2c 20 |l, temp_buffer, |
00002a70 30 29 3b 0a 20 20 20 77 74 6f 62 28 69 63 6f 6e |0);. wtob(icon|
00002a80 68 64 6c 2c 20 74 65 6d 70 5f 62 75 66 66 65 72 |hdl, temp_buffer|
00002a90 2c 20 34 29 3b 0a 0a 20 20 20 69 6e 2e 72 5b 31 |, 4);.. in.r[1|
00002aa0 5d 20 3d 20 28 69 6e 74 29 20 74 65 6d 70 5f 62 |] = (int) temp_b|
00002ab0 75 66 66 65 72 3b 0a 20 20 20 5f 6b 65 72 6e 65 |uffer;. _kerne|
00002ac0 6c 5f 73 77 69 28 57 69 6d 70 5f 47 65 74 49 63 |l_swi(Wimp_GetIc|
00002ad0 6f 6e 53 74 61 74 65 2c 20 26 69 6e 2c 20 26 6f |onState, &in, &o|
00002ae0 75 74 29 3b 0a 0a 20 20 20 72 65 73 75 6c 74 20 |ut);.. result |
00002af0 3d 20 28 63 68 61 72 20 2a 29 20 62 74 6f 77 28 |= (char *) btow(|
00002b00 74 65 6d 70 5f 62 75 66 66 65 72 2c 20 32 38 29 |temp_buffer, 28)|
00002b10 3b 0a 20 20 20 72 65 74 75 72 6e 20 72 65 73 75 |;. return resu|
00002b20 6c 74 3b 0a 7d 0a 0a 76 6f 69 64 20 69 63 6f 6e |lt;.}..void icon|
00002b30 63 68 61 6e 67 65 28 63 68 61 72 20 2a 74 65 78 |change(char *tex|
00002b40 74 2c 20 75 6e 73 69 67 6e 65 64 20 6c 6f 6e 67 |t, unsigned long|
00002b50 20 69 6e 74 20 77 69 6e 5f 68 2c 20 75 6e 73 69 | int win_h, unsi|
00002b60 67 6e 65 64 20 6c 6f 6e 67 20 69 6e 74 20 69 63 |gned long int ic|
00002b70 6f 6e 5f 68 29 0a 7b 0a 20 20 20 5f 6b 65 72 6e |on_h).{. _kern|
00002b80 65 6c 5f 73 77 69 5f 72 65 67 73 20 69 6e 2c 20 |el_swi_regs in, |
00002b90 6f 75 74 3b 0a 20 20 20 63 68 61 72 20 2a 74 70 |out;. char *tp|
00002ba0 6f 69 6e 74 65 72 3b 0a 20 20 20 75 6e 73 69 67 |ointer;. unsig|
00002bb0 6e 65 64 20 63 68 61 72 20 74 65 6d 70 5f 62 75 |ned char temp_bu|
00002bc0 66 66 65 72 5b 32 35 35 5d 3b 0a 0a 20 20 20 2f |ffer[255];.. /|
00002bd0 2a 20 46 69 6e 64 20 6f 75 74 20 77 68 65 72 65 |* Find out where|
00002be0 20 74 68 65 20 69 63 6f 6e 27 73 20 69 6e 64 69 | the icon's indi|
00002bf0 72 65 63 74 65 64 20 74 65 78 74 20 69 73 20 73 |rected text is s|
00002c00 74 6f 72 65 64 20 69 6e 20 6d 65 6d 6f 72 79 20 |tored in memory |
00002c10 61 6e 64 20 63 6f 70 79 0a 20 20 20 20 20 20 61 |and copy. a|
00002c20 20 6e 65 77 20 73 74 72 69 6e 67 20 74 6f 20 69 | new string to i|
00002c30 74 20 2a 2f 0a 20 20 20 74 70 6f 69 6e 74 65 72 |t */. tpointer|
00002c40 20 3d 20 67 65 74 69 63 6f 6e 74 65 78 74 70 6f | = geticontextpo|
00002c50 69 6e 74 65 72 28 77 69 6e 5f 68 2c 20 69 63 6f |inter(win_h, ico|
00002c60 6e 5f 68 29 3b 0a 20 20 20 73 74 72 63 70 79 28 |n_h);. strcpy(|
00002c70 74 70 6f 69 6e 74 65 72 2c 20 74 65 78 74 29 3b |tpointer, text);|
00002c80 0a 0a 20 20 20 2f 2a 20 4e 6f 77 20 77 65 20 6e |.. /* Now we n|
00002c90 65 65 64 20 74 6f 20 69 6e 66 6f 72 6d 20 74 68 |eed to inform th|
00002ca0 65 20 57 49 4d 50 20 74 68 61 74 20 74 68 65 20 |e WIMP that the |
00002cb0 69 63 6f 6e 20 6e 65 65 64 73 20 72 65 64 72 61 |icon needs redra|
00002cc0 77 69 6e 67 20 62 79 20 73 65 74 74 69 6e 67 0a |wing by setting.|
00002cd0 20 20 20 20 20 20 74 68 65 20 69 63 6f 6e 20 66 | the icon f|
00002ce0 6c 61 67 73 20 2d 20 77 65 20 64 6f 6e 27 74 20 |lags - we don't |
00002cf0 61 63 74 75 61 6c 6c 79 20 63 68 61 6e 67 65 20 |actually change |
00002d00 74 68 65 6d 20 77 69 74 68 20 74 68 69 73 20 63 |them with this c|
00002d10 61 6c 6c 2c 20 62 75 74 20 74 68 69 73 0a 20 20 |all, but this. |
00002d20 20 20 20 20 73 70 75 72 73 20 74 68 65 20 57 49 | spurs the WI|
00002d30 4d 50 20 69 6e 74 6f 20 61 63 74 69 6f 6e 20 2a |MP into action *|
00002d40 2f 0a 0a 20 20 20 77 74 6f 62 28 77 69 6e 5f 68 |/.. wtob(win_h|
00002d50 2c 20 74 65 6d 70 5f 62 75 66 66 65 72 2c 20 30 |, temp_buffer, 0|
00002d60 29 3b 0a 20 20 20 77 74 6f 62 28 69 63 6f 6e 5f |);. wtob(icon_|
00002d70 68 2c 20 74 65 6d 70 5f 62 75 66 66 65 72 2c 20 |h, temp_buffer, |
00002d80 34 29 3b 0a 20 20 20 77 74 6f 62 28 30 2c 20 74 |4);. wtob(0, t|
00002d90 65 6d 70 5f 62 75 66 66 65 72 2c 20 38 29 3b 0a |emp_buffer, 8);.|
00002da0 20 20 20 77 74 6f 62 28 30 2c 20 74 65 6d 70 5f | wtob(0, temp_|
00002db0 62 75 66 66 65 72 2c 20 31 32 29 3b 0a 0a 20 20 |buffer, 12);.. |
00002dc0 20 69 6e 2e 72 5b 31 5d 20 3d 20 28 69 6e 74 29 | in.r[1] = (int)|
00002dd0 20 74 65 6d 70 5f 62 75 66 66 65 72 3b 0a 0a 20 | temp_buffer;.. |
00002de0 20 20 5f 6b 65 72 6e 65 6c 5f 73 77 69 28 57 69 | _kernel_swi(Wi|
00002df0 6d 70 5f 53 65 74 49 63 6f 6e 53 74 61 74 65 2c |mp_SetIconState,|
00002e00 20 26 69 6e 2c 20 26 6f 75 74 29 3b 0a 20 20 20 | &in, &out);. |
00002e10 72 65 74 75 72 6e 3b 0a 7d 0a |return;.}.|
00002e1a 
.