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Topic: Accessing the Window's API (Read 4490 times) |
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Matt
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Posts: 210
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Re: Accessing the Window's API
« Reply #22 on: Oct 10th, 2010, 6:42pm » |
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Hi Richard,
I'm using the assember and other parts from the program 'DIRdetails.bbc' (Can't remember where I got it.) These are the main parts.
WHEN WM_NOTIFY :
IF sortcount%>-1 THEN
IF click%(1) = sortcol% THEN
direction% *= -1
C% = sortcount%+1
CALL indexsort%((direction%+1)/2), sort$(0,0), sort$(1,0)
sortcol% = click%(1)
ELSE
direction% = 1
sortcol% = click%(1)
PROC_SORT
ENDIF
relist% = TRUE
ENDIF
FOR pass% = 8 TO 10 STEP 2
P% = code
[OPT pass%
.oldwndproc
dd 0
:
.hdn_itemclick
mov eax,[eax+12]
mov [esp+16],eax
mov dword [esp+8],WM_COMMAND
mov dword [esp+12],WM_NOTIFY
jmp [oldwndproc]
:
.wm_notify
mov eax,[esp+16]
cmp dword [eax+8],HDN_ITEMCLICKA
jz hdn_itemclick
jmp [oldwndproc]
:
.newwndproc
cmp dword [esp+8],WM_NOTIFY
jz wm_notify
jmp [oldwndproc]
]
NEXT pass%
But this only seems to check for clicking on the column header. To check for the item I'm using,
SYS "SendMessage", hlist%, LVM_GETNEXTITEM, -1, LVNI_SELECTED TO index%
This gives a constant running value, so I can't even time a double click.
Are these the types of codings that you are referring to?
Matt
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admin
Administrator
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Posts: 1145
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Re: Accessing the Window's API
« Reply #23 on: Oct 10th, 2010, 9:38pm » |
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on Oct 10th, 2010, 6:42pm, Matt wrote:| I'm using the assember and other parts from the program 'DIRdetails.bbc'.... But this only seems to check for clicking on the column header. |
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Since you're already using assembler code to handle the HDN_ITEMCLICKA notification you can add to that code to handle the NM_DBLCLK notification as well. The HDN_ITEMCLICKA gets converted by the assembler code to a WM_COMMAND message (which can easily be processed using ON SYS) so it would make sense to do just the same for the NM_DBLCLK notification.
As only one notification is intercepted by the existing code it isn't necessary to indicate which notification it was. Obviously once you're handling both HDN_ITEMCLICKA and NM_DBLCLK notifications you'll have to pass more information to your ON SYS handler; You could for example pass the notification code as the @lparam% parameter (currently unused), although it might be more consistent with the way List Boxes and other simple controls work to pass it in the high 16-bits of @wparam%.
Richard.
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Michael Hutton
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Posts: 248
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Re: Accessing the Window's API
« Reply #24 on: Oct 12th, 2010, 12:11pm » |
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Although not entirely relevant you may find this article useful when intercepting windows messages in assembler, especially those pesky WM_NOTIFY messages.
http://bb4w.wikispaces.com/Colour+text+in+a+List+View
It is, I admit, rather effusive and probably more confusing than helpful as I wrote it a while back but it may help. I would be interested in your comments!
Michael Hutton
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