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Detect Caps Lock state

[local function declaration]
FUNCTION  int GetKeyState(int keystatus) LIBRARY "user32.dll"

[powerscript]
int li_keystate

li_keystate = GetKeyState(20)

IF li_keystate = 1 THEN
    MessageBox("", "CAPS on")
ELSEIF li_keystate = 0 THEN
    MessageBox("", "CAPS off")
END IF
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