WinApi

Creates a script function for many windows dlls functions automatically.

OutputVar := Function(Arg1, Arg2, ...)
Function Example: cmd := GetCommandLine()

Parameters

OutputVar

The name of the variable in which to store the actual return value of a function same as in DllCall or DynaCall. If the function is of a type that does not return a value, the result is an undefined integer. If the function cannot be called due to an error, the OutputVar is set blank (an empty string) and ErrorLevel is set.

Function

The name of dll function to call. See example.

Arg1, Arg2, ... (optional)

Parameters to be passed to function.
All parameters are optional, when omitted "" will be used for AStr, WStr and Str and 0 otherwise.

General Remarks

Some functions are in conflict with ahk functions, those are appended an underscore: Sleep_, SendInput_, SendMessage_, PostMessage_, BlockInput_, GetKeyState_, SetTimer_, Send_, Shutdown_.

Parameter * or P is not used in WinApi, instead such parameters are of type PTR, use getvar(var:=0) if you like to store the value in variable directly.
The variable is of type Int64 by default, to convert to desired type use ToChar, ToShort, ToInt, ToUChar, ToUShort, ToUInt, this is mainly required to convert Unsigned value to Signed.

Related

DynaCall, #DllImport

Examples

MsgBox % LoadLibrary(A_AhkPath)

GetCommandLine,cmd
MsgBox % cmd

StrToIntEx("-2147483648",0,getvar(var:=0))
MsgBox % ToInt(var)

OnMessage(0x999,"Ox999")
SendMessage_(A_ScriptHwnd,0x999) ; same as DllCall("user32\SendMessage","PTR",A_ScriptHwnd,"UINT",0x999,"PTR",0,"PTR",0,"PTR")
ExitApp
Ox999(w,l,m,h){
  MsgBox % w "`n" l "`n" m "`n" h
  return 1
}

Definitions

Advapi32.dll, Comctl32.dll, Comdlg32.dll, Crypt32.dll, Gdi32.dll, Gdiplus.dll, Glu32.dll, Hid.dll, Kernel32.dll, Ole32.dll, Oleacc.dll, OleAut32.dll, Opengl32.dll, Rasapi32.dll, Rasdlg.dll, Rasman.dll, Shell32.dll, Shlwapi.dll, Tapi32.dll, User32.dll, Userenv.dll, UxTheme.dll, Version.dll, Winhttp.dll, Wininet.dll, Winmm.dll, Ws2_32.dll

Advapi32.dll

Comctl32.dll

Comdlg32.dll

Crypt32.dll

Gdi32.dll

Gdiplus.dll