6989505: java.awt.Robot's getPixelColor treats not fully opaque Window as fully transparent.
Summary: Use ::CreateDC() instead of ::GetDC()
Reviewed-by: art, dcherepanov
os_family = linux
arch = zero
arch_model = zero
os_arch = linux_zero
os_arch_model = linux_zero
lib_arch = zero
compiler = gcc
gnu_dis_arch = zero
sysdefs = -DLINUX -D_GNU_SOURCE -DCC_INTERP -DZERO -D@ZERO_ARCHDEF@ -DZERO_LIBARCH=\"@ZERO_LIBARCH@\"