Fix spawned process window not foregrounding.

This patch addresses an issue whereby the window of
a process created with CreateProcess fails to come
to the foreground.

This occurs when the calling process itself hasn't run any
Windows event processing loop. A repro test case is to make a
program with a main, and and call CreateProcess to spawn
calc.exe or notepad.exe before doing anything else.

It turns out that a dummy call to TranslateMessage makes this
issue goes away. If such a call is made before CreateProcess,
then the spawned process' window comes up in the foreground
as expected.

* winsup/cygwin/Makefile.in (DLL_IMPORTS): We need to link
in user32.dll to call TranslateMessage. Condense the
multiple ${shell ...} call repetition with a foreach.

* winsup/cygwin/spawn.cc (child_info_spawn::worker): Do the
dummy TranslateMessage call before the section of code that
calls CreateProcess or CreateProcessAsUser.

0 files changed, 0 insertions, 0 deletions