OpenEuphoria

1. dialog window

• Posted by Flaminio <newpow at TIN.IT> Sep 16, 1999
• 686 views
• Last edited Sep 17, 1999

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i'm not able to open a dialog window, i have alleged to this mail the
file EXW that attempts to do it...
        What is wrong ? Can U help me ?

        Thanks

        Flaminio, Italy

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Content-Disposition: inline; filename="wind.exw"

include machine.e
include dll.e
without warning
atom user,gdi,kernel,inddlgfrm,dlgtm
dlgtm = allocate(28)
user = open_dll("user32.dll")
gdi = open_dll("gdi32.dll")
kernel = open_dll("kernel32.dll")
atom RegisterClass, LoadIcon, LoadCursor, GetStockObject, CreateWindow,
PostQuitMessage
atom ShowWindow, UpdateWindow, GetMessage, TranslateMessage, DispatchMessage
atom DefWindowProc, GetLastError, DialogBoxIndirectParam
RegisterClass = define_c_proc(user, "RegisterClassExA", {C_POINTER})
LoadIcon = define_c_func(user, "LoadIconA", {C_INT, C_INT}, C_INT)
LoadCursor = define_c_func(user, "LoadCursorA", {C_INT, C_INT}, C_INT)
GetStockObject = define_c_func(gdi, "GetStockObject", {C_INT}, C_INT)
CreateWindow = define_c_func(user, "CreateWindowExA", {C_INT, C_INT, C_INT,
C_INT,
C_INT, C_INT, C_INT,
                                                       C_INT,
C_INT, C_INT, C_INT,
                                                       C_INT}, C_INT)
ShowWindow = define_c_proc(user, "ShowWindow", {C_INT, C_INT})
UpdateWindow = define_c_proc(user, "UpdateWindow", {C_INT})
GetMessage = define_c_func(user, "GetMessageA", {C_INT, C_INT, C_INT, C_INT},
C_INT)
TranslateMessage = define_c_proc(user, "TranslateMessage", {C_INT})
DispatchMessage = define_c_proc(user, "DispatchMessageA", {C_INT})
PostQuitMessage = define_c_proc(user, "PostQuitMessage", {C_INT})
DefWindowProc = define_c_func(user, "DefWindowProcA", {C_INT, C_INT, C_INT,
C_INT}, C_INT)
DialogBoxIndirectParam = define_c_func(user, "DialogBoxIndirectParamA", {C_INT,
C_INT, C_INT, C_INT, C_INT}, C_INT)
GetLastError = define_c_func(kernel, "GetLastError", {C_INT}, C_INT)
global function DlgFrm(atom hwnd, atom imsg, atom wparam, atom lparam)
        if imsg = 272 then return(1) -- 272 = WS_INITDIALOG
        else
        return(0)
        end if
end function
global function WndProc(atom hwnd, atom imsg, atom wparam, atom lparam)
        if imsg=2 then c_proc(PostQuitMessage, {0})
                       return(0)
        end if
        if imsg=15 then  poke4(dlgtm, #00C80000) -- WS_CAPTION|WS_SYSMENU
              poke4(dlgtm+4, 0)
              poke4(dlgtm+8, 0)
              poke4(dlgtm+12, 2)
              poke4(dlgtm+16, 2)
              poke4(dlgtm+20, 5)
              poke4(dlgtm+24, 5)
              ? c_func(DialogBoxIndirectParam, {0, dlgtm, hwnd, inddlgfrm, 18})
              ? c_func(GetLastError, {0})
-- the last function (getlasterror) gives 6 that means invalid
              hwnd
             return(0)
        end if
        return c_func(DefWindowProc, {hwnd, imsg, wparam, lparam})
end function
procedure WinMain()
        atom ind,msg,id,st1,st2,indwndproc,hwd,id2
        id2 = routine_id("DlgFrm")
        inddlgfrm = call_back(id2)
        ind = allocate(48)
        msg = allocate(40)
        id = routine_id("WndProc")
        st1 = allocate_string("pippo")
        st2 = allocate_string("pippa")
        indwndproc = call_back(id)
        poke4(ind, 48)
        poke4(ind+4, 3)
        poke4(ind+8, indwndproc)
        poke4(ind+12, 0)
        poke4(ind+16, 0)
        poke4(ind+20, 0)
        poke4(ind+24, c_func(LoadIcon, {0, 32512}))
        poke4(ind+28, c_func(LoadCursor, {0, 32512}))
        poke4(ind+32, c_func(GetStockObject, {0}))
        poke4(ind+36, 0)
        poke4(ind+40, st1)
        poke4(ind+48, c_func(LoadIcon, {0, 32512}))
        c_proc(RegisterClass, {ind})
        hwd = c_func(CreateWindow, {0,st1,st2,#00CF0000,
                                        #80000000,
                                        #80000000,
                                        #80000000,
                                        #80000000,
                                        0,0,0,0})
        c_proc(ShowWindow, {hwd, 1})
        c_proc(UpdateWindow, {hwd})
        while c_func(GetMessage, {msg,0,0,0}) do
                c_proc(TranslateMessage, {msg})
                c_proc(DispatchMessage, {msg})
        end while
end procedure
WinMain()


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