subclassing? the "lParam" value.

[dynamic_sysop]

hi i know that to grab events using subclassing in vb.net you can get the msg value ( using ByRef m As Message ) but is it possible to get the other parts, like wParam and lParam ?

i'm just wondering as without them bits the subclass seems a bit useless:-\ . i want to hook a window and view all messages that pass through it , but all i seem to get is the "message" eg : WM_PAINT. i'm already aware that i cant use the AddressOf function as in vb6 ( it says cant use a reference to a long or something )

any ideas on how to be able to watch the other params would be great. all i can find is this ... System.Windows.Forms.Message which represents the actuall message .

[dynamic_sysop]

s'ok i may have an idea now :) msg.LParam ( msg being the main message received )

1 thing tho, does the lParam have to be converted to a long or an IntPtr ? ( what ever an IntPtr is :-\ , a pointer to an integer at a guess )

[Bucky]

An Integer in VB.NET is a 32-bit number variable, which is the

same as a Long in VB6, so you do not need to convert the

params and messages to Longs.

 

You can convert the Integer into an IntPtr if the parameter is

a handle to a window, an hDC, or anything of that nature. Then

you can use the IntPtr in .NET functions.

 

I don't completely understand your other questions... Do you

already know how to subclass (override the WndProc method)?

[dynamic_sysop]

i subclass in vb6 yes , but i'm having a bit of a headache with something so i thought i'd try with .net.

cheers