"To my knowledge, "Printing visibly" has never been punishable under Texas law"
Dunno if anyone was ever nailed after wind blew up their skirt while a cop was present or whatever, but the law was recently changed* to specifically exempt unintentional exposure. Due to the realities of what will actually get a conviction from a jury, it was probably more a precautionary measure than a significant one, but there is now a black and white recognition (so hopefully even the potential for abuse by uppity DA's is reduced if not eliminated)
Penal Code 46.035, post open carry law (last sentence);
"A license holder commits an offense if the license holder carries a handgun on or about the license holder's person under the authority of Subchapter H, Chapter 411, Government Code, and intentionally displays [fails to conceal**] the handgun in plain view of another person in a public place. It is an exception to the application of this subsection that the handgun was partially or wholly visible but was carried in a shoulder or belt holster by the license holder."
--technically OC by licensees is still illegal, but for the 'holster exemption' (kind of like our status with NFA items, which are illegal but for the tax-stamp
)
TCB
*9/1/13, SB299
**vague enough for me to think a clear print (or even gesture towards the gun's location) qualifies in the eyes of an eager beaver