structure help

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redasm

Joined: 28 Aug 2005
Posts: 1

redasm

bfr rb $FF
sze dd $FF

struc point
{.x dd ?
.y dd ?}
mxy point

invoke GetCursorPos,mxy
invoke WindowFromPoint,mxy.x,mxy.y
invoke GetWindowText,eax,bfr,sze

does not work ^o^

28 Aug 2005, 00:22

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4633
Location: Argentina

LocoDelAssembly

Let me show you the prototype of WindowFromPoint:

Code:

HWND WindowFromPoint(

    POINT Point         // structure with point
   );

Tomasz: You had set a wrong amount of params to that function, it needs only one param not two.

Regards,
LocoDelAssembly

28 Aug 2005, 04:10

vbVeryBeginner

Joined: 15 Aug 2004
Posts: 884
Location: \\world\asia\malaysia

vbVeryBeginner

and the point structure is correct.

Code:

typedef struct tagPOINT { 
  LONG x; 
  LONG y; 
} POINT, *PPOINT;

28 Aug 2005, 05:31

vbVeryBeginner

Joined: 15 Aug 2004
Posts: 884
Location: \\world\asia\malaysia

vbVeryBeginner

try

Code:

invoke WindowFromPoint,[mxy.x],[mxy.y]

28 Aug 2005, 05:37

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4633
Location: Argentina

LocoDelAssembly

Sorry, I forgot C support passing structures by copy Embarassed

28 Aug 2005, 13:04

Reverend

Joined: 24 Aug 2004
Posts: 408
Location: Poland

Reverend

locodelassembly: I also had some problems with this API once, but I noticed that API reference says "POINT" (structure) not "LPPOINT" (long pointer to structure). Heh, but for someone who doesn't use this API it could not be clear at first Smile

28 Aug 2005, 22:20

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