Bitmap-button

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arnix

Joined: 04 Mar 2005
Posts: 4

arnix 04 Mar 2005, 19:53

Hi, I am trying to create a bitmap-button, here is what I'm doing:

Code:

...
...
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section '.rsrc' resource data readable

   directory RT_DIALOG,         dialogs,\
             RT_ICON,           icons,\
             RT_GROUP_ICON,     group_icons,\
             RT_BITMAP,         bitmaps

             IDR_LOGO         = 7
             IDR_DOIT         = 10

   resource dialogs,     301, LANG_ENGLISH or SUBLANG_DEFAULT, main
   resource group_icons, 401, LANG_NEUTRAL, main_icon
   resource icons,       1, LANG_NEUTRAL, icon_data
   resource bitmaps,     IDR_DLG_BITMAP, LANG_NEUTRAL, dlgbitmap,\
                         IDR_DOIT, LANG_NEUTRAL, doitbitmap


   ID_DO_B = 907h


   dialog main,'Demo Patcher Program',10,10,168,98,\
                WS_POPUP or WS_SYSMENU or DS_CENTER,,\
             WS_EX_TOOLWINDOW or WS_EX_APPWINDOW,\
              'Courier New',8

         dialogitem 'STATIC', IDR_DLG_BITMAP,-1,0,0,168,98,\
            WS_VISIBLE or SS_BITMAP or SS_CENTERIMAGE or SS_REALSIZEIMAGE
         dialogitem 'BUTTON', IDR_DOIT, ID_DO_B, 4, 69, 78, 11,\
                SS_CENTERIMAGE or SS_REALSIZEIMAGE or WS_VISIBLE or BS_BITMAP
   enddialog

   icon   main_icon,icon_data,'icon.ico'
   bitmap dlgbitmap,'dlg.bmp'
   bitmap doitbitmap,'doit.bmp'


section '.c' code readable executable

start:
   invoke GetModuleHandle, 0

   invoke DialogBoxParam,eax,301,HWND_DESKTOP,WindowProc,0
   invoke ExitProcess,eax

proc WindowProc, hwnd,msg,wparam,lparam
   push    ebx esi edi

   cmp     [msg],WM_INITDIALOG
   jz      wminit
   cmp     [msg],WM_COMMAND
   jz      wmcommand
   cmp     [msg],WM_CLOSE
   jz      wmclose
   xor     eax, eax
   jmp     finish

wminit:
invoke LoadBitmap, [hwnd], IDR_DOIT
invoke SendDlgItemMessage, [hwnd], ID_DO_B, BM_SETIMAGE, IMAGE_BITMAP, eax
jmp processed

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Lasterror shows ERROR_RESOURCE_DATA_NOT_FOUND (00000714)
But where is my fault? The resource exists! Isn't it?

04 Mar 2005, 19:53

drs

Joined: 20 Jan 2005
Posts: 17
Location: Southern California, USA

drs 05 Mar 2005, 15:59

Hi,

I'm not an expert in assembly or anything but I think your problem might be that you are not passing the correct argument into LoadBitmap. It should be the instance to the application not a window.

Save EAX from GetModuleHandle and pass it into LoadBitmap. This way you are passing a handle to an instance and not a handle to a window.

Let me know if that works.

Thanks.

EDIT:

Actually I just reread your source code, it looks like [hwnd] might be eax. Check this in a debugger anyway.

05 Mar 2005, 15:59

arnix

Joined: 04 Mar 2005
Posts: 4

arnix 05 Mar 2005, 20:07

Yes, I already solved the problem, you are right about instance Smile

Here is the right code:

...
...
start:
invoke GetModuleHandle, 0
mov [hInstance],eax
...
...
invoke LoadBitmap, [hInstance], IDR_DOIT
invoke SendDlgItemMessage, [hwnd], ID_DO_B, BM_SETIMAGE, IMAGE_BITMAP, eax

;================

Thank you Smile

05 Mar 2005, 20:07

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