RSRC file

[shankle]

           6-26-2015
   Have a program that uses an rsrc file.
   The screen shows 2 programs. The rsrc data shows the same
        for both programs. It should not be the same. It would be
   nice if I could have 2 different rsrc files or be able to grey
   out the items not needed in   either program.
   I don't think it is possible to use 2 different rsrc files in
   the same program. Greying out an item might be possible.
   How to do this is the problem. Point me where to read or give
        an example how to accomplish this Please.
   

[dedndave]

hi Jack
could you please be a little clearer in explaining exactly what you are trying to do ?

[shankle]

Ok Dave I will give it a whirl.
Program A uses an RSRC file to do things such as Cut, Paste, Find etc.
Program A calls in two programs B and C.
Programs B and C are then listed on the screen.
The same RSRC file is listed above programs B and C and they are identical.
I would like to be able to select a different combination of cut, paste, find etc.
for programs B and C. Or at least be able to grey out ones that don't apply
to program B or C.
Hope this helps....     

[rrr314159]

Hello shankle,

I believe you're talking about the menus, which are defined in the resource file. You want to change the menus for B and C. What you need are dynamic menu commands like loadmenu, createmenu, showmenu, modifymenu, enablemenuitem. dedndave in a recent thread (which I'm 2 lazy to find at the moment) posted a program that does dynamic menu mods based on file inputs, sounds like exactly what you want.

[shankle]

        6-29-2015
I have been trying for days to get EnableMenuItem to work.
I would suspect the handle I am using is incorrect.
My problem is that I don't know how to find the handle.
I have defined hMenu using LOCAL in Winmain and Wndproc.
This RSRC script is from an old MASM32 program that I have
linked in a GoAsm 64-bit program. It works in the GoAsm
program but I need to grey out various fields occasionally.
There are about 100 instructions on using menus on the
Microsoft site so it is a tad bewildering.
These are 2 lines of code that do not work in the GoAsm
program:
   invoke EnableMenuItem, 600,1010,[MF_GRAYED]
   invoke EnableMenuItem, [hMenu],1101,[MF_BYPOSITION | MF_GRAYED]


#define IDM_CUT 1101
#define IDM_COPY 1102
#define IDM_PASTE 1103
#define IDM_FIND 1104
#define IDM_UNDO 1105
#define IDM_EXIT 1010
    600 MENUEX MOVEABLE IMPURE LOADONCALL DISCARDABLE
    BEGIN
      POPUP "&File", , , 0
      BEGIN
      MENUITEM "&Exit", IDM_EXIT
      END   
      POPUP "&Edit", , , 0
      BEGIN           
      MENUITEM "C&ut", IDM_CUT
      MENUITEM "COPY", IDM_COPY
      MENUITEM "PASTE", IDM_PASTE
      MENUITEM "&FIND", IDM_FIND
      MENUITEM "UNDO", IDM_UNDO     
      END
   END
   
.const
menuname     equ 600
IDM_CUT      equ 1101
IDM_COPY     equ 1102
IDM_PASTE    equ 1103
IDM_FIND     equ 1104
IDM_UNDO     equ 1105
IDM_EXIT     equ 1010
IDOK         equ 1
IDCANCEL     equ 2

I would appreciate it if someone could enlighten me. 

   

[dedndave]

sorry i didn't get back sooner, Jack

EnableMenuItem uses a handle for the menu - and a number for the menu item

so, let's say you have an Main menu, with File, Edit, View, Help submenus

typically, you will have the handle for the Main menu
either when you load it or attach it
if not, use GetMenu to get the Main menu attached to a window

now, you want a handle for the submenus, File, Edit, View, Help
these menus are attached to the Main menu, in the order created
but, you can get the handles by using numbers 0, 1, 2, 3
File = 0
Edit = 1
View = 2
Help = 3
if they were created in that order (also the order they appear)

use GetSubMenu for to get the handle(s)

Code: [Select]

    INVOKE  GetSubMenu,hmenuMain,1    ;get the handle for the Edit menu
    mov     hmenuEdit,eaxyour submenus may have submenus below them, as well
in that case, use the handle for the submenu, and the item number to get the sub-sub-menu handle

now, you can use EnableMenuItem
if you use the MF_BYPOSITION flag, it again wants a zero-based number of the item
if you use the MF_BYCOMMAND flag, you use the ID number (1101, etc), typically in the form of an EQU like IDM_CUT
you can only use one of those flags - not both together
MF_BYCOMMAND is the default (=0)

Code: [Select]

    INVOKE  EnableMenuItem,hmenuEdit,IDM_CUT,MF_BYCOMMAND or MF_GRAYED or MF_DISABLED
    INVOKE  EnableMenuItem,hmenuEdit,0,MF_BYPOSITION or MF_GRAYED or MF_DISABLEDboth calls do the same thing

[shankle]

Thanks Dave. Will give it a try after more study.

[rrr314159]

I use the SetMenuItemInfo function because you can change all the attributes with it. Seems to be deprecated, though? - but it works. It's actually a little more complex than EnableMenuItem but if you continue to have problems, it may be an alternative

[Yuri]

These are 2 lines of code that do not work in the GoAsm
program:
   invoke EnableMenuItem, 600,1010,[MF_GRAYED]
   invoke EnableMenuItem, [hMenu],1101,[MF_BYPOSITION | MF_GRAYED]

You should not put constants in brackets. That way they will be treated as memory addresses.

[shankle]

           6-30-2015
   Details of the .const and RSRC script are in post #4
        Trying to make this msg smaller.   
hMenuMain        dq   0
hMenuSub1        dq   0

Local HWND

   This code is placed in Winmain after the  Createwindowex,
   Showwindow and Updatewindow.
   
   invoke GetMenu, [HWND]
   mov [hMenuMain],rax
   invoke EnableMenuItem, [hMenuMain],600,MF_BYCOMMAND or MF_ENABLED
   invoke GetSubMenu, [hMenuMain],5   ; idm_exit
   mov [hMenuSub1],rax
   invoke EnableMenuItem, [hMenuSub1],5,MF_BYPOSITION or MF_GRAYED ; idm_exit
   
   The RSRC script is loaded at compile time and I have no idea
   what the handle is. I suspect why the above code is not working is that
   the main handle is invalid.   
   Could this statement in the RSRC script be invalid?
    600 MENUEX MOVEABLE IMPURE LOADONCALL DISCARDABLE
   
     

[dedndave]

yah - that's not working because the window has no menu when you call GetMenu

a better way to do it is to use LoadMenu, before CreateWindowEx
then, you have a menu handle to pass to CreateWindowEx - and the menu is "automatically" attached to the window
and - you have the handle - no need to use GetMenu
another advantage is that you don't have to DestroyMenu because DestroyWindow takes care of it for you

Code: [Select]

    INVOKE  LoadMenu,[hInstance],600
    mov     [hmenuMain],eax

    INVOKE  CreateWindowEx,..,..,..,..,..,..,..,....,[hmenuMain],[hInstance],lParam
notice that EAX could be used to replace [hmenuMain] in CreateWindowEx, if it hasn't been altered
(lParam is often NULL)

i guess it's RAX for 64-bit code   :P

[shankle]

           6-30-2015 2:36
   Details of the .const and RSRC script are in post #4
       Trying to make this msg smaller.   
hMenuMain        dq   0
hMenuSub0        dq   0
hMenuSub5        dq   0

; load the Rsrc menu here
   invoke LoadMenu,[hInstance],600
   mov [hMenuMain],rax
;          puts Pane 1 to screen
   invoke CreateWindowEx, NULL,addr szDisplayName1,addr AppName,\
     WS_VSCROLL | WS_OVERLAPPEDWINDOW,[RR.left],[RR.top],[RR.right],\
     [savemiddleofY],NULL,[hMenuMain],[hInst],NULL
                                       ^

; this is now working:)
   invoke GetSubMenu, [hMenuMain],5   ; idm_exit
   mov [hMenuSub5],rax
   invoke EnableMenuItem, [hMenuSub5],5,MF_BYPOSITION or MF_GRAYED

; This is not working
   invoke GetSubMenu, [hMenuMain],0   ; idm_cut
   mov [hMenuSub0],rax
   invoke EnableMenuItem, [hMenuSub0],0,MF_BYPOSITION or MF_GRAYED

;  If you notice in post #4 the RSRC script has 2 popups
    &file and &edit
   The one for &file is working and the one for &edit is not.

[dedndave]

i made an example

1) it's MASM syntax
2) it's 32-bit code

i think you can handle those   :P

i put the menu item stuff in the WM_CREATE handler code
the EQU's are in the project INC file

[shankle]

Thanks is hardly adequate Dave, but I do thank you.
The Menu code is now working beautifully.
Hope you didn't spend to much of your time creating the zip file.

Seems like a good subject for a book with lots of examples and
assuming people aren't familiar with the subject. In other words
"Menus for Dummies".

[dedndave]

no problem, Jack   :t

the SmallWindow program was already written
it only took 10 minutes or so to add the menu stuff   :P