setting font

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coconut

Joined: 02 Apr 2004
Posts: 326
Location: US

coconut

my program crashes when trying to set a child controls font, with the following code

Code:

  wmcreate:
        invoke  CreateWindowEx,WS_EX_CLIENTEDGE,_lb,0,WS_VISIBLE+WS_CHILD+LBS_STANDARD,5,5,110,75,[hwnd],0,[hinstance],NULL
        or      eax,eax
        jz      failed
        mov     [lbhwnd],eax
        invoke  CreateWindowEx,0,_btn,_btn_text,WS_VISIBLE+WS_CHILD+BS_PUSHBUTTON,5,85,55,20,[hwnd],0,[hinstance],NULL
        or      eax,eax
        jz      failed
        mov     [btnhwnd],eax
        invoke  CreateFont,16,0,0,0,0,FALSE,FALSE,FALSE,ANSI_CHARSET,OUT_RASTER_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,FIXED_PITCH+FF_DONTCARE,NULL
        or      eax,eax
        jz      failed
        mov     [childfont],eax
        invoke  SendMessage,[lbhwnd],WM_SETFONT,eax,FALSE
        invoke  SendMessage,[btnhwnd],WM_SETFONT,eax,FALSE
        xor     eax,eax
        jmp     finish
       failed:
        or      eax,-1
        jmp     finish

if i comment out the CreateFont line it doesnt crash

08 Apr 2004, 00:34

VitalOne

Joined: 29 Jul 2003
Posts: 54
Location: USA

VitalOne

I haven't tested this, but try this:

Code:

  wmcreate: 
        invoke  CreateWindowEx,WS_EX_CLIENTEDGE,_lb,0,WS_VISIBLE+WS_CHILD+LBS_STANDARD,5,5,110,75,[hwnd],0,[hinstance],NULL 
        or      eax,eax 
        jz      failed 
        mov     [lbhwnd],eax 
        invoke  CreateWindowEx,0,_btn,_btn_text,WS_VISIBLE+WS_CHILD+BS_PUSHBUTTON,5,85,55,20,[hwnd],0,[hinstance],NULL 
        or      eax,eax 
        jz      failed 
        mov     [btnhwnd],eax 
        invoke  CreateFont,16,0,0,0,0,FALSE,FALSE,FALSE,ANSI_CHARSET,OUT_RASTER_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,FIXED_PITCH+FF_DONTCARE,NULL 
        or      eax,eax 
        jz      failed 
        mov     [childfont],eax 
        invoke  SendMessage,[lbhwnd],WM_SETFONT,[childfont],FALSE 
        invoke  SendMessage,[btnhwnd],WM_SETFONT,[childfont],FALSE 
        xor     eax,eax 
        jmp     finish 
       failed: 
        or      eax,-1 
        jmp     finish

08 Apr 2004, 05:10

coconut

Joined: 02 Apr 2004
Posts: 326
Location: US

coconut

changed it, still crashes at the same point.. strange the same code works in the MiniPad example. could it be the type of controls im trying to work with dont support the font being created?

08 Apr 2004, 21:13

comrade

Joined: 16 Jun 2003
Posts: 1138
Location: Russian Federation

comrade

Maybe its because last parameter of CreateFont is zero? needs to point to asciiz string

_________________
comrade (comrade64@live.com; http://comrade.ownz.com/)

08 Apr 2004, 21:18

zenek_tm

Joined: 21 Mar 2004
Posts: 33
Location: Poland

zenek_tm

The last parameter must be a pointer to a string with font name.

08 Apr 2004, 22:31

coconut

Joined: 02 Apr 2004
Posts: 326
Location: US

coconut

how would i send a pointer to

_font db 'Times New Roman',0

is that like using ADDR in masm?

08 Apr 2004, 23:29

comrade

Joined: 16 Jun 2003
Posts: 1138
Location: Russian Federation

comrade

just write _font

_________________
comrade (comrade64@live.com; http://comrade.ownz.com/)

09 Apr 2004, 03:02

coconut

Joined: 02 Apr 2004
Posts: 326
Location: US

coconut

Code:

_sfont db "Times New Roman",0
    
invoke  CreateFont,13,0,0,0,0,0,0,0,0,0,0,0,0,_sfont

works - thanks

10 Apr 2004, 05:37

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