Check for common broken nVidia+Mesa OpenGL library setups.
Add some quoting.

Call GetProcAddress only when a function is actually called, not at
declaration time.

Fixed DdeCreateDataHandle for non NULL or CF_TEXT formats.
Various fixes (cosmetics, better error checking).

- Support both ANSI & Unicode ListView notifications.
- Fixed a few bugs.

stream.

in the registry, even though we don't yet execute it.

  modify the input string if it didn't change.
- Correct array size.
- Logically separate the centring from the ellipsification.
- Comment on prefix error.

  module.
- Use constants instead of variables.

specify argument types in order to fix a "bug" concerning
integer/string scalars.

SPI_SETSCREENREADER.
Save to registry value of SPI_SETSCREENSAVEACTIVE action.
Changed processing of action SPI_SETFASTTASKSWITCH to conform to
Windows behaviour on and after WinNT 4.0, Windows 95.

user32.TrackMouseEvent and call this function in accordance with the
specs.

- Rearrange code into three distinct areas; DrawText, GrayString,
  TabbedText.
- Remove unused macros.
- Modify treatment of Tab arguments to fit with observed behaviour.
  e.g. DrawTextEx with DT_TABSTOP but null dtp will not take the
  setting from the flags.  Also only uses bits 15 to 8, not the
  higher bits.

received reply packet.

button is pressed.

returned by LB_GETTEXTLEN may be too large.