API MessageBox

[rasim]

#include <GUIConstants.au3>
Opt("GuiOnEventMode", 1)

Global Const $MB_OK = 0x00000000

$hwnd = GUICreate("Test", 200, 100)
GUISetOnEvent($GUI_EVENT_CLOSE, "OnExit")

$button = GUICtrlCreateButton("Go", 10, 10, 50, 25)
GUICtrlSetOnEvent(-1, "Dll")

GUISetState()

Func Dll()
    DllCall("user32.dll", "int", "MessageBox", $hwnd, "Hello world", 0, $MB_OK)
EndFunc

While 1
    Sleep(100)
WEnd

Func OnExit()
    Exit
EndFunc

[BrettF]

Almost... You didn't declare the paramater types...

#include <GUIConstants.au3>
Opt("GuiOnEventMode", 1)

Global Const $MB_OK = 0x00000000

$hwnd = GUICreate("Test", 200, 100)
GUISetOnEvent($GUI_EVENT_CLOSE, "OnExit")

$button = GUICtrlCreateButton("Go", 10, 10, 50, 25)
GUICtrlSetOnEvent(-1, "Dll")

GUISetState()

Func Dll()
    DllCall("user32.dll", "int", "MessageBox", "hwnd", $hwnd, "str", "Some text", "str", "Some title", "int", $MB_OK)
EndFunc

While 1
    Sleep(100)
WEnd

Func OnExit()
    Exit
EndFunc

Edited October 14, 2007 by Bert

[rasim]

Thanks