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Question about Allegro mouse [Solved]

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I was reading the example code here: and it says "/* To display a mouse pointer, call show_mouse(). There are several * things you should be aware of before you do this, though. For one, * it won't work unless you call install_timer() first. For another, * you must never draw anything onto the screen while the mouse * pointer is visible. So before you draw anything, be sure to turn * the mouse off with show_mouse(NULL), and turn it back on again when * you are done. */" Why is it that I must never draw anything while the pointer is visable? I don't understand. [Edited by - In_Yack_Mode on November 11, 2008 4:23:23 PM]

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