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DoubleClick or RightClick [SOLVED] [message #1633]

Sat, 11 March 2006 00:01

Justin
Messages: 57
Registered: March 2006
Location: Orange County California

Member

How do I respond to actions other than the left mouse button?

Currently I am using code like this to handle single left-click actions:


	btnTest <<= THISBACK(Compute);

Would I have to manually handle the Win32 messages within the 'Compute()' function? or is there an easier way of doing this?

[Updated on: Sun, 09 April 2006 04:35] by Moderator

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Re: DoubleClick or RightClick [message #1634 is a reply to message #1633]

Sat, 11 March 2006 00:35

mirek
Messages: 14105
Registered: November 2005

Ultimate Member

Justin wrote on Fri, 10 March 2006 18:01

How do I respond to actions other than the left mouse button?

Currently I am using code like this to handle single left-click actions:


	btnTest <<= THISBACK(Compute);

Would I have to manually handle the Win32 messages within the 'Compute()' function? or is there an easier way of doing this?

Depends. To handle events inside your view area, us LeftDown, LeftUp, LeftDouble, RightDown etc... virtuals.

However, this seems like you are interested in events going to your widget (Button?), so in fact Button is to handle these events. Standard Button does not react to right mouse clicks - you would need to derive and add virtuals (quite easy to do).

OTOH, some Ctrls do react to rightclicks. E.g. ArrayCtrl pops up the menu (which you can define). Anyway, widget reaction to input events is widget specif.

Mirek

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Re: DoubleClick or RightClick [message #1636 is a reply to message #1634]

Sat, 11 March 2006 01:03

Justin
Messages: 57
Registered: March 2006
Location: Orange County California

Member

Thanks, I was looking at the ArrayCtrl in particular. However, I ran accross the WhenLeftDouble method in use for callbacks. So what I tried was this:

rma.array.WhenLeftDouble <<= THISBACK(About);

This obviously didn't work and returned this:

main.cpp
C:\MyApps\NCase\main.cpp(134) : error C3767: '<<=': candidate function(s) not accessible
        could be the friend function at 'C:\upp\uppsrc\Core/Topt.h(245)' : '<<=' [may be found via argu
	ment-dependent lookup]
        or the friend function at 'C:\upp\uppsrc\Core/Topt.h(245)' : '<<=' [may be found via argument-d
	ependent lookup]


C:\MyApps\NCase\main.cpp(134) : error C2676: binary '<<=' : 'Callback' does not define this operator or
	 a conversion to a type acceptable to the predefined operator
1 file(s) compiled in (0:01.01) 1016 msec/file

There were errors. (0:01.14)

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Re: DoubleClick or RightClick [message #1639 is a reply to message #1636]

Sat, 11 March 2006 07:38

mirek
Messages: 14105
Registered: November 2005

Ultimate Member

Use "=" instead of "<<=".

Admitedly a bit confusing. The deal is that "<<=" is operator to assign WhenAction "basic" callback, defined in Ctrl (other overload BTW calls SetData, if the right side is Value or Value convertible).

Mirek

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Re: DoubleClick or RightClick [message #1660 is a reply to message #1634]

Sun, 12 March 2006 02:19

Justin
Messages: 57
Registered: March 2006
Location: Orange County California

Member

luzr wrote on Fri, 10 March 2006 18:35

However, this seems like you are interested in events going to your widget (Button?), so in fact Button is to handle these events. Standard Button does not react to right mouse clicks - you would need to derive and add virtuals (quite easy to do).

Do you have a tutorial or any documentation regarding virtuals? If not, is there a good reference or example with U++ that might point me in the right direction?

Thanks again

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Re: DoubleClick or RightClick [message #1661 is a reply to message #1660]

Sun, 12 March 2006 04:56

Justin
Messages: 57
Registered: March 2006
Location: Orange County California

Member

Nevermind. Figured it out.

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Re: DoubleClick or RightClick [message #1662 is a reply to message #1660]

Sun, 12 March 2006 08:01

mirek
Messages: 14105
Registered: November 2005

Ultimate Member

Justin wrote on Sat, 11 March 2006 20:19

luzr wrote on Fri, 10 March 2006 18:35

Do you have a tutorial or any documentation regarding virtuals? If not, is there a good reference or example with U++ that might point me in the right direction?

Thanks again

reference/Events

Mirek

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