| Title |
Pterm adjusts a terminal size |
| Ref. No. |
QNX.000009857 |
| Category(ies) |
Input Devices, Development, Configuration, Character I/O |
| Issue |
We use qtalk via pterm windows and often at a bigger size than 80x25.
We want pterm to send a stty rows=...command to the shell, as it does when the emulating mode is changed.
Can we issue the 'stty' command by hand?
|
| Solution |
Resizing a window sends a SIGWINCH signal to the application running in the window. You do not need pterm's help here. You just need to run a small program that injects the stty command into your keyboard whenever you resize the window. For example:
(i.e. run it as "blah qtalk ...")
x09#include <stdio.h>
x09#include <signal.h>
x09#include <stdlib.h>
x09#include <process.h>
x09#include <sys/dev.h>
x09#include <sys/wait.h>
x09
x09#ifdef __USAGE
x09%C program[arguments]
x09#endif
x09
x09static void winch(int s){
x09x09int r, c;
x09x09if(dev_size(0, -1, -1, &r, &c) == 0){
x09x09x09char buf[32];
x09x09x09dev_insert_chars(0, sprintf(buf, "stty rows = %d,%dn", r, c), buf);
x09x09}
x09}
x09int main(int argc, char **argv){
x09x09const char *cmd;
x09x09if((cmd = *++argv) == NULL)
x09x09x09fputs("Need a command to runn", stderr);
x09x09else{
x09x09x09int pid;
x09x09x09if((pid = spawnvp(P_NONWAIT, cmd, argv)) < 0)
x09x09x09x09perror(cmd);
x09x09}else{
x09x09x09int status;
x09x09x09signal(SIGWINCH, winch);
x09x09x09while(waitpid(pid, &status, 0) != pid)
x09x09x09x09;
x09x09x09if(WIFEXITED(status))
x09x09x09x09return WEXITSTATUS(status);
x09x09}
x09x09return EXIT_FAILURE;
x09}
x09 |
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