can't create maximized window

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sobrien

Joined: 25 Jun 2006
Posts: 2

sobrien 25 Jun 2006, 12:36

hello,

I'm a total newb so please be gentle with me Smile

I was messing about with template.asm from the examples folder of fasm and can't figure how to create a maximized window. I can maximize it after creation but according to win32hlp, if I create it with the WS_MAXIMIZE it should be maximized upon creation. Here's the code anyway Confused

Code:

; Template for program using standard Win32 headers

format PE GUI 4.0
entry start

include '%fasminc%\win32a.inc'

section '.data' data readable writeable

  _title db 'Win32 program template',0
  _class db 'FASMWIN32',0

  wc WNDCLASS 0,WindowProc,0,0,NULL,NULL,NULL,COLOR_BTNFACE+1,NULL,_class

  msg MSG

section '.code' code readable executable

  start:

        invoke  GetModuleHandle,0
        mov     [wc.hInstance],eax
        invoke  LoadIcon,0,IDI_APPLICATION
        mov     [wc.hIcon],eax
        invoke  LoadCursor,0,IDC_ARROW
        mov     [wc.hCursor],eax
        invoke  RegisterClass,wc

        invoke  CreateWindowEx,0,_class,_title,\
                WS_VISIBLE+WS_OVERLAPPEDWINDOW+WS_MAXIMIZE,\    ;Shouldn't this load a maximized window?
                128,128,192,192,\
                NULL,NULL,[wc.hInstance],NULL

;From win32hlp :-

;       If an application specifies the WS_MAXIMIZE or WS_MINIMIZE style in the CreateWindowEx function,
;       the window is initially maximized or minimized.


  msg_loop:
        invoke  GetMessage,msg,NULL,0,0
        or      eax,eax
        jz      end_loop
        invoke  TranslateMessage,msg
        invoke  DispatchMessage,msg
        jmp     msg_loop

  end_loop:
        invoke  ExitProcess,[msg.wParam]

proc WindowProc hwnd,wmsg,wparam,lparam
        push    ebx esi edi
        cmp     [wmsg],WM_DESTROY
        je      wmdestroy
  defwndproc:
        invoke  DefWindowProc,[hwnd],[wmsg],[wparam],[lparam]
        jmp     finish
  wmdestroy:
        invoke  PostQuitMessage,0
        xor     eax,eax
  finish:
        pop     edi esi ebx
        ret
endp

section '.idata' import data readable writeable

library kernel32,'KERNEL32.DLL',\
        user32,  'USER32.DLL'

include '%fasminc%\apia\Kernel32.inc'
include '%fasminc%\apia\User32.inc'

25 Jun 2006, 12:36

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 25 Jun 2006, 14:15

Your program opens a maximized window on my WinXP.

[edit]Sorry, it only works if I run it from FASMW, but if I just do double click over the exe file on the desktop it opens a very small window :S

This code fix the problem:

Code:

        invoke  CreateWindowEx,0,_class,_title,\ 
                WS_OVERLAPPEDWINDOW,\    ;Shouldn't this load a maximized window?
                128,128,192,192,\ 
                NULL,NULL,[wc.hInstance],NULL
        invoke ShowWindow, eax, SW_SHOWMAXIMIZED

25 Jun 2006, 14:15

sobrien

Joined: 25 Jun 2006
Posts: 2

sobrien 25 Jun 2006, 16:31

Thx for the reply locode, but let me reiterate my OP

Quote:

...how to create a maximized window

Quote:

I can maximize it after creation... (Which is what you are doing in your code)

and from the code...

Quote:

From win32hlp :-

If an application specifies the WS_MAXIMIZE or WS_MINIMIZE style
in the CreateWindowEx function, the window is initially maximized or minimized.

and the window style I used in CreatWindowEx was

Quote:

WS_VISIBLE+WS_OVERLAPPEDWINDOW+WS_MAXIMIZE

but this isn't creating a maximized window.

25 Jun 2006, 16:31

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