Jass API Screen Window

// Screen API
native SetScreenFieldOfView								takes real fov returns nothing
native SetWidescreenState								takes boolean flag returns nothing
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// Window API
native IsWindowActive									takes nothing returns boolean
native GetWindowWidth									takes nothing returns integer
native GetWindowHeight									takes nothing returns integer
native GetClientWidth									takes nothing returns integer
native GetClientHeight									takes nothing returns integer
native GetWindowX										takes nothing returns integer
native GetWindowY										takes nothing returns integer
native GetWindowCenterX									takes nothing returns integer
native GetWindowCenterY									takes nothing returns integer
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