Using Beyond Compare for Visual Diff in TortoiseHg

Question

I am trying to use Beyond Compare for Visual Diff in TortoiseHg. eg Right click on a modified file in explorer and select Visual Diff from TortoiseHg context menu...

BeyondCompare opens but only shows the 'welcome' screen and not the file I want to diff. Am I missing something?

I have setup the mercurial.ini file as follows:

  [extensions]
  extdiff =

  [extdiff]
  cmd.bcomp = C:\Program Files (x86)\Beyond Compare 3\BCompare.exe
  opts.bcomp = /ro

  [tortoisehg]
  vdiff = bcomp

  [merge-tools]
  bcomp.executable = C:\Program Files (x86)\Beyond Compare 3\BComp
  bcomp.args = $local $other $base $output
  bcomp.priority = 1
  bcomp.premerge = True
  bcomp.gui = True

  [ui]
  merge = bcomp

Answer 1

Found the answer.

Visual Diff Tool in TortoiseHg Global Settings had to be set to 'beyondcompare3' instead of 'bcomp'.