Process:Close

This method closes a running process and returns its exit code.

Syntax

• number Close()

Returns

Returns the process exit code.

Remarks

To avoid forcefully terminating a running process call the Process:Wait method instead of this method, or wait for Process:GetStatus to return PROCESS_FINISHED before calling this method.

Example

local appname = "Notepad"
local apppath = "C:/Windows/notepad.exe"

--Get the displays
local displays = GetDisplays()

--Create a window
local window = CreateWindow("Ultra Engine", 0, 0, 460, 480, displays[1])

--Create User Interface
local ui = CreateInterface(window)

--Create widget
local sz = ui.background:GetSize()
local button = CreateButton("Launch " .. appname, (sz.x - 120) / 2, (sz.y - 30) / 2, 120, 30, ui.background)

local proc = nil

while true do
    local ev = WaitEvent()
    if ev.id == EVENT_WIDGETACTION then
        if ev.source == button then
            if proc then
                proc:Close()
                proc = nil
                button:SetText("Launch " .. appname)
            else
                button:SetText("Close " .. appname)
                proc = CreateProcess(apppath)
            end
        end
    elseif ev.id == EVENT_WINDOWCLOSE then
        return
    end
end