Cannot use CTRL-PAUSE \ VOGONS

Cannot use CTRL-PAUSE

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First post, by wolfgang

Posted on 2010-12-02, 18:32

wolfgang Offline

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I am trying to use QBASIC in DosBox. It works great, except I can't break an infinite loop. QBASIC provides the CTRL-PAUSE command while the program is running to stop the program, but this doesn't work in DosBox. I have tried to see if there is a keystroke already mapped to this by DosBox, but can't find anything. Any ideas?

Reply 1 of 5, by Qbix

Posted on 2010-12-02, 19:34

Qbix Offline

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we don't support it.

Water flows down the stream
How to ask questions the smart way!

Reply 2 of 5, by ripsaw8080

Posted on 2010-12-02, 19:45

ripsaw8080 Offline

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Most BASIC interpreters and compilers will recognize Ctrl-ScrollLock as a Break, because that was the Break key on PC XT-style keyboards.

Reply 3 of 5, by TeaRex

Posted on 2010-12-07, 01:07

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ripsaw8080 wrote:
Most BASIC interpreters and compilers will recognize Ctrl-ScrollLock as a Break, because that was the Break key on PC XT-style keyboards.

Maybe this should be in the README? Since using CTRL-SCRLK instead of CTRL-BREAK it is not exactly an obvious thing (to most people) and the question about CTRL-BREAK has been asked several times already.

tearex

Reply 4 of 5, by mr_bigmouth_502

Posted on 2010-12-07, 07:13

mr_bigmouth_502 Offline

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TeaRex wrote:
ripsaw8080 wrote:
Most BASIC interpreters and compilers will recognize Ctrl-ScrollLock as a Break, because that was the Break key on PC XT-style keyboards.

Maybe this should be in the README? Since using CTRL-SCRLK instead of CTRL-BREAK it is not exactly an obvious thing (to most people) and the question about CTRL-BREAK has been asked several times already.

I second this.

Reply 5 of 5, by ripsaw8080

Posted on 2010-12-07, 08:19

ripsaw8080 Offline

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Various forms of BASIC recognize the keypress, but Ctrl-ScrollLock is not a generic substitute for Ctrl-Break. DOSBox does not implement true Break processing in its emulated BIOS and DOS. Not sure it's worth mentioning in the readme/manual when it pertains mostly to BASIC.

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