And...Keith B wrote:Displaying a handgun during the use of force is covered in the statutes
Sec. 46.035. UNLAWFUL CARRYING OF HANDGUN BY LICENSE HOLDER. (a) 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 the handgun in plain view of another person in a public place.
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(h) It is a defense to prosecution under Subsection (a) that the actor, at the time of the commission of the offense, displayed the handgun under circumstances in which the actor would have been justified in the use of force or deadly force under Chapter 9.
So just drawing the handgun to be ready to use in the case of a perceived or actual threat would have a defense to prosecution.
PC §9.04. THREATS AS JUSTIFIABLE FORCE. The threat of force is justified when the use of force is justified by this chapter. For purposes of this section, a threat to cause death or serious bodily injury by the production of a weapon or otherwise, as long as the actor’s purpose is limited to creating an apprehension that he will use deadly force if necessary, does not constitute the use of deadly force.