CS_PARENTDC with WS_CLIPSIBLINGS
Ladislav Sladecek
lsla at post.cz
Wed Aug 8 11:02:41 CDT 2001
On St, 08 srp 2001, Alexandre Julliard wrote:
> Ladislav Sladecek <lsla at post.cz> writes:
> > 2) The real reason for the crash is that the application calls Escape16 with
> > hdc equal to 0 and function equal to GETPRINTINGOFFSET. I do not understand
>
> It's not supposed to crash even if the hdc is invalid. Do you have a
> backtrace of the crash?
I ovelooked that the EscapeXXXX functions changed too. If you look at the source
of Escape16 you will find this:
case GETPHYSPAGESIZE:
case GETPRINTINGOFFSET:
case GETSCALINGFACTOR:
{
POINT16 *ptr = MapSL(in_data);
POINT pt32;
ret = Escape( hdc, escape, 0, NULL, &pt32 );
ptr->x = pt32.x;
ptr->y = pt32.y;
return ret;
}
The function is called like this:
0806c1c8:Call GDI.38: ESCAPE(0x0000,0x000d,0x0000,0x00000000,0657:e8f4) ret=0ff7:4428 ds=1207
The in_data pointer is null but the code assigns to it, thats why it
crashes. I think that the result should be assigned to the output parameter.
Ladislav Sladecek
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