Saves an image of the current game display. Screenshot images are saved to the folder Screenshots within the folder where the World of Warcraft client is installed.

Taking a screenshot fires the SCREENSHOT_SUCCEEDED event (or the SCREENSHOT_FAILED event in case of an error), which causes the default UI to display a message in the middle of the screen. Additional screenshots taken while this message is displayed will include it -- the default UI's TakeScreenshot() function hides this message so it is not included in screenshots.