suresh@cat.enet.dec.com (Suresh Subramanian) (08/04/90)
System calls like read and write, when interrupted after the signal handler function is done, return a value < 0 and put EINTR into errno. But getch and wgetch routines from curses when interrupted return from signal handler, and wait for user input. Does anyone know how to make getch or wgetch to return to the program after the interrupt rather than waiting for user input. BTW I am using Xopen curses under V4.0 of Ultrix. Thanks in advance Regards Suresh
marvil@boulder.colorado.edu (Rebecca Marvil) (11/17/90)
I have been having trouble porting a program which uses curses, from a MIPS M-2000 running RISC-OS 4.51 (Berkeley environment) to a DEC station 3100 running Ultrix 4.0. Throughout the program I use wmove() and waddstr() to print a string to the specified location in the specified window. All of these function calls work fine on the MIPS, but on the DEC, occasionally the wmove() will not move the logical cursor where I specify, and thus the waddstr() function prints the string in the wrong location. This only happens when the x argument to wmove() is 0, yet it doesn't happen for all values of y. In other words, calling wmove(datawin,5,0) may work just fine, but wmove(datawin,6,0) won't. When it doesn't work right, it ALWAYS moves the logical cursor to the previous line, in the last column. So, in the above example, the wmove(datawin,6,0) would put the logical cursor at (5,79) - assuming the window is 80 columns wide. NOTE: If I never print anything to the last column of the window, the program works fine. If anyone has any suggestions that might help with this problem, they would be most appreciated. Becky Marvil marvil@boulder.colorado.edu MCD Biology Univ. of Colorado Boulder, CO 80309 303-492-5938