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During the rendering process (or Service_DrawObjectRender for unknown objects) the render state may be updated with an error pointer.
However, as rending proceeds and potentially many other SWIs are called also using MessageTrans' shared buffers, by the end of the rendering process the originally captured pointer may be pointing at a totally different message.
Capture the error after each object is despatched in our own buffer.

Version 1.62. Tagged as 'DrawFile-1_62'

If the current directory is not it's root these are not equivalent.

Version 1.61. Tagged as 'DrawFile-1_61'

The state->column is only defined when there is text to flush, so after lexing pretty much any header item (eg. the version number "! 1") the check for having reached the terminating column results in a NULL pointer dereference.
Tested with *Render TestFiles/TextArea, and a default area header prefixed by !Draw.

Version 1.60. Tagged as 'DrawFile-1_60'

Version 1.59. Tagged as 'DrawFile-1_59'

Now matches on CMDHELP=None in common with other C modules not wanting international command help.
Retagged as DrawFile-1_58.

Files saved by !Draw 1.24 or later can opt to have transparent background colour to me use the blending font manager. This is the corresponding change to the renderer.
Ordinary text will not be plotted if the *foreground* colour is transparent - this seems to have been a discrepancy between !Draw and DrawFile, DrawFile used to render it in the background colour instead, imagining that this was like a shadow. The spirit of the draw file spec is that the background colour is an optional hint, however.
The state flags that end up on Service_DrawObjectRender no longer contain the DrawFile modules internal flags, only those documented.

Version 1.58. Tagged as 'DrawFile-1_58'

At some point in internationalisation the help and syntax messages got muddled, so if you did "*RENDER" (ie. a syntax error because no filename is given) you got both the syntax message and then overwritten with the help text (because it has carriage returns in it).
Help change to do <plain english><options><syntax> and
      syntax does <syntax>
like *COPY command.

Version 1.57. Tagged as 'DrawFile-1_57'

BuildSys 5.12 and later include various things required by CModule for you, and including them twice results in a warning, so delete them.

Version 1.56. Tagged as 'DrawFile-1_56'

Previous changes were untagged, but incrementing the version number gives
us a tag we can associate with the official RISC OS 5.16 release.

Version 1.55. Tagged as 'DrawFile-1_55'

Detail:
  Specify RESFSDIR so resources are built for ROM builds
Admin:
  Tested on rev C2 beagleboard with OMAP3 ROM build


Version 1.54. Not tagged

Detail:
  Previously had an over-complicated method of accessing data block to install
  in ResourceFS and had needless duplication of Messages files in build. Also
  it was impossible to automate the building of the pre-RISC OS 3.6 variant
  of the module. All fixed by rewriting the makefile to use shared makefile
  fragments (and moving assembler sources to conventional 's' subdirectory).
Admin:
  Tested in Tools CD build.

Version 1.54. Tagged as 'DrawFile-1_54'

Version 1.53. Tagged as 'DrawFile-1_53'

Version 1.52. Tagged as 'DrawFile-1_52'

Detail:
  Fixed locations to be inside Resources.UK.
Admin:
  Standardisation means this component does not require BBE specific rules.

Version 1.51. Tagged as 'DrawFile-1_51'

  Removed assembler.
Detail:
  Removed unnecessary assembler - which was just cc -S output for the C
    files!
  Imports the muldiv and riscosa (osvarlen) functions from AsmUtils.
Admin:
  Requires AsmUtils 0.03 or later.
  RAM build tested.

Version 1.50. Tagged as 'DrawFile-1_50'

Spinner branch merged.
Updated to use Link 5.08.

Version 1.49. Tagged as 'DrawFile-1_49'

Sprout from master 1996-11-21 12:49:07 UTC Neil Turton <nturton@gitlab.riscosopen.org> 'Initial revision'
Delete:
    !!Log
    !!Log423
    !BuildNote
    ViaFile
    c/riscos
    h/riscos