A Line, Circle, PSet, Scale page, WARNINGs for known defects, and bug reproducers with pictures by KubaO · Pull Request #220 · twinbasic/documentation

bug_repro: a reproducer's VB6 project may hold a user control (.ctl, .ctx); forecolor-invalid-value-stored gains the UserControl case on both sides

KubaO

committed

4087b66

docs, tbbuild: --buildAndExit32 exits 0 only for an error in code nothing calls, and hangs for one the build reaches (983, 995)

KubaO

committed

2abbc26

bugs: damaged-project box re-measured on 995 on a private desktop: all four inputs, all three verbs; settings and readme exit 0 too; cut project writes Sources\Startup.twin

KubaO

committed

7edf9d9

BUGS: the Debug Console offers no completion for a name typed after ? and a space (995, 987); reproducer and ide-test lane

KubaO

committed

7c00ff0

addin-test: env lane holds P10, TB_ADDIN_TEST reaches the add-in in the compiler and after a restart (983, 995)

KubaO

committed

26f3727

bug_repro: cli mode runs each command on a private desktop, records and closes its dialog boxes; damaged-project-modal-box becomes a cli reproducer; tb-launch.ps1 travels in TBBUILD_SCRIPT

KubaO

committed

8f18a1b

docs: addin-test has eleven lanes, the env lane among them, and takes under two minutes on 995

KubaO

committed

a8c68eb

BUGS: a space typed in the Debug Console accepts the IntelliSense list's first entry, so Print x becomes Printerx (995, 987); reproducer and ide-test lane

KubaO

committed

22c59d2

bug_repro: pictures for graphical defects (PngDump in tB and VB6, imagesDiffer)

KubaO

committed

ddb8fea

docs: Circle's angles on six surfaces; BUGS: angle above 2 pi unchecked (995, 983)

KubaO

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1118cbe

docs: Point's NOTE says it returns 0, warns TB0009, and how to read a pixel

KubaO

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3deaf28

BUGS: entries embed their compare pictures; file rewrites the path; png.test checks it

KubaO

committed

67ab2c7

check_examples: a form template for check_run; vb6run builds form samples

KubaO

committed

e57e0ba

docs: Circle samples on a form, read back with GetPixel, checked against VB6

KubaO

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48ce16b

BUGS: file circle-positive-angle-unchecked.

KubaO

committed

9958163

BUGS: file proper-case-even-separators.

KubaO

committed

4aae81a

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A Line, Circle, PSet, Scale page, WARNINGs for known defects, and bug reproducers with pictures - #220

A Line, Circle, PSet, Scale page, WARNINGs for known defects, and bug reproducers with pictures#220
KubaO merged 27 commits into
twinbasic:mainfrom
KubaO:staging

Commits on Oct 3, 2026

docs: Core page on how Line, Circle, PSet and Scale syntax becomes a call with a flags argument; linked from every drawing surface; bare Scale resets to twips

BUGS: Clear All Breakpoints undone by a compiler restart; a watch on a UDT fails with a codegen error; evaluating after a break in DoEvents crashes (995, 987); reproducers and ide-test lanes

docs: how Line, Circle and PSet read a colour value (BETA 984), with VB6's differences; TextBox Change raised once per Text assignment, SelText and MaxLength against VB6

docs: LSet pads since BETA 984, UDT copy rules; RSet truncation; StrConv LCID, vbProperCase, vbUTF8 and VB6 differences; check_run examples

bug_repro vb6: build a project with a form (no Unattended Execution, which VB6 refuses for it); run every reproducer's exe on a private desktop

BUGS: system colour extra bytes draw black (984); colour properties store invalid values; Text ignores MaxLength; vbProperCase after even separators; LSet on a Long codegen error; LSet/RSet on Vari…

Authoring rule: a known defect that silently gives a wrong result is a WARNING until fixed; a visible one is a NOTE

docs: silent twinBASIC defects become WARNINGs (system colour bytes, MaxLength, Err.Raise defaults, Source, IErrorInfo, Unadvise); BUGS comments name the callouts

Authoring rule: a crash, or an error that hides a silent part, is a WARNING too

docs: crash and run-twice defects become WARNINGs (Advise Nothing, IUnknown IID, late-bound retry); new WARNINGs for LSet/RSet on Variant array elements and Form colour properties storing invalid v…

docs: colour properties of every drawing surface and control store invalid values (995, 983; VB6 raises 380): WARNINGs on 22 pages; reproducer and BUGS entry widened

Commits on Oct 4, 2026

bug_repro: a reproducer's VB6 project may hold a user control (.ctl, .ctx); forecolor-invalid-value-stored gains the UserControl case on both sides

docs, tbbuild: --buildAndExit32 exits 0 only for an error in code nothing calls, and hangs for one the build reaches (983, 995)

bugs: damaged-project box re-measured on 995 on a private desktop: all four inputs, all three verbs; settings and readme exit 0 too; cut project writes Sources\Startup.twin

BUGS: the Debug Console offers no completion for a name typed after ? and a space (995, 987); reproducer and ide-test lane

addin-test: env lane holds P10, TB_ADDIN_TEST reaches the add-in in the compiler and after a restart (983, 995)

bug_repro: cli mode runs each command on a private desktop, records and closes its dialog boxes; damaged-project-modal-box becomes a cli reproducer; tb-launch.ps1 travels in TBBUILD_SCRIPT

docs: addin-test has eleven lanes, the env lane among them, and takes under two minutes on 995

BUGS: a space typed in the Debug Console accepts the IntelliSense list's first entry, so Print x becomes Printerx (995, 987); reproducer and ide-test lane

bug_repro: pictures for graphical defects (PngDump in tB and VB6, imagesDiffer)

docs: Circle's angles on six surfaces; BUGS: angle above 2 pi unchecked (995, 983)

docs: Point's NOTE says it returns 0, warns TB0009, and how to read a pixel

BUGS: entries embed their compare pictures; file rewrites the path; png.test checks it

check_examples: a form template for check_run; vb6run builds form samples

docs: Circle samples on a form, read back with GetPixel, checked against VB6

BUGS: file circle-positive-angle-unchecked.

BUGS: file proper-case-even-separators.