Mouse Capture (Win32 API)

thomthom

Can you combine it with a Tool - and get the mouse input via it's events?

Mr.K.1

I can but SU keeps it's own mouse click actions that mess with SketchyPhysics and will mess with the game.

right mouse click, always pops up a drop down menu(even when empty)
middle mouse click, has the default orbit tool
mouse scroll, has default camera zoom

Is there a way to disable these? I tried adding things to the button events but it does not prevent the default SU actions.

Anton_S

Mr.k u know that capturing mouse is a very, very, Very good idea!
Now Instead of Creating a SketchyPhysicsControllClient we can capture the keyboard and mouse by by hoocking the signals and sending them instead to sketchy physics operation.

Since my dad is new to Ruby Programing Language, it takes more time for him and me to write this code. His idea is to first write it on Delphi and then me, him, and most likely with ur help would try to convert it to Ruby.

Mr.K.1

I eagerly await your results, I will help out in any way I can to finally bring this old project to full life.

I assume it would also come in very handy when making other plugins and tools.

Anton_S

Well here is what I got for NOW, but it's the way where u allways have to call the function to get the input:

onstart{
 require "Win32API"
 
 @rc=0 #var preventing release function to be called more than once, just to make the script accurate.
 @getKeyState=Win32API.new('user32', "GetKeyState", "L", "L")
 getForegroundWindow = Win32API.new('user32', 'GetForegroundWindow', [], 'L')
 setCapture = Win32API.new('user32', 'SetCapture', 'L', 'L')
 setCapture.call(getForegroundWindow.Call())
}

ontick{
 if (frame==1000 or key(" ")==1) and @rc==0 then
  @rc=1
  releaseCapture = Win32API.new('user32', 'ReleaseCapture', 'V', 'L')
  releaseCapture.call()
 end
 model=Sketchup.active_model
 entities=model.entities
 view=model.active_view
 entities[0].text=@getKeyState.call(VK_LBUTTON).inspect + "
" + @getKeyState.call(VK_RBUTTON).inspect
}

onend{
 if @rc==0 then
  releaseCapture = Win32API.new('user32', 'ReleaseCapture', 'V', 'L')
  releaseCapture.call()
 end 
}

The model is here: http://sketchup.google.com/3dwarehouse/details?mid=f0ca091fd0760cfc6a464cb0e6f0895

Virtual key codes: http://msdn.microsoft.com/en-us/library/dd375731(v=VS.85).aspx

Mr.K.1

Very nice, that works perfectly in SP!
Is there a way to just get the full array of buttons and not call the function for every button specifically because it seems like a waste.

We could still use a callback feature for other plugins.
Maybe someone else here knows how to set that up?

Anton_S

@unknownuser said:

Very nice, that works perfectly in SP!
Is there a way to just get the full array of buttons and not call the function for every button specifically because it seems like a waste.

Yes there is a way and this is what my dad will be doing. The program would receive the mouse or keyboard signals and send the input signals to sketchy physics operation, preventing them to interupt with SU.

Mr.K.1

Any way to include mouse wheel into this, it seems there is no code for it among the button lineup.
Not strictly necessary but it's nice to get the control.

Anton_S

Here is the way to get most of mouse input(no wheel scrool or side-to-side input) and all keyboard inputs.
http://sketchup.google.com/3dwarehouse/details?mid=e530ef9d408f78ce6a464cb0e6f0895

It is still not a good way to get the input messages, since it it has to be called all the time to get the input, but its also not that bad for the start. Mouse Wheel Scroll and side-to-side click input, is somewhere in the different function, but it's not really important now. My dad is still writing a script with me that would hook all keyboard and mouse messages and send them to array of active key inputs. So, the mouse wheel function is not important now because when the hoocking script would be active the function could just return us an input message of mouse wheel. Ex: forward scroll, backward scroll, side-to-side click and some more messages that would incounter the mouse wheel usage.

Mr.K.1

So here is the jist of Anton's code:

Capture mouse (Sketchup will stop reacting to it):

getForegroundWindow=Win32API.new("user32", "GetForegroundWindow", [], "L")
 Win32API.new("user32", "SetCapture", "L", "L").call(getForegroundWindow.call())

Read all key states (keyboard and mouse):

@getKeyboardState=Win32API.new("user32", "GetKeyboardState", "P", "V")
@lpKeyState=" "*256
@getKeyboardState.call(@lpKeyState)

@lpKeyState will hold an array of 256 numbers for all the keys.
@lpKeyState[1,2,4] - [1]left-mouse, [2]right-mouse, [4]middle-mouse
@lpKeyState[48..57] - keyboard keys 0 to 9

Release mouse

Win32API.new("user32", "ReleaseCapture", "V", "L").call()