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evil__donkey



Joined: 07 Dec 2003
Posts: 26
evil__donkey
Code:
invoke        ShowWindow, [g_hWndMain], SW_SHOWNORMAL    


FASM doesn't warn if I mistakingly use

Code:
invoke     ShowWindow, [g_hWndMain]    


possibly demonstrating why prototypes are good. =\ (I spent one hour trying to find out the error, and lo! it's right there.)

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Post 23 Jul 2004, 08:57
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JohnFound



Joined: 16 Jun 2003
Posts: 3500
Location: Bulgaria
JohnFound
evil__donkey wrote:
FASM doesn't warn if I mistakingly use
Code:
invoke  ShowWindow, [g_hWndMain]    



IMHO, this is the right behaviour. Of course you still can use "win32ax.inc" if you can't live without parameter checking. Smile

Here is one simple example why parameter check is bad sometimes:
Code:
        invoke  ExtCreatePen,PS_COSMETIC,1,eax,0,NULL
        invoke  SelectObject,[.DC], eax
        push    eax ; old pen in the stack

; some line drawing invokes

        invoke  SelectObject, [.DC] ;  The old pen is already in the stack
        invoke  DeleteObject,eax   ;  Delete created pen.
    


In case of parameter check you have to pop eax and then to push it again.

Regards.
Post 23 Jul 2004, 09:27
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7713
Location: Kraków, Poland
Tomasz Grysztar
It's the "win32axp.inc" that does parameter checking.
Post 23 Jul 2004, 09:44
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JohnFound



Joined: 16 Jun 2003
Posts: 3500
Location: Bulgaria
JohnFound
Privalov wrote:
It's the "win32axp.inc" that does parameter checking.


Embarassed Sorry, my fault.
Post 23 Jul 2004, 10:14
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