[code] Win32 Moving/Showing/Hiding Toolbars and Dialogs

[Jim]

Not a plugin - just some example codes for manipulating the toolbar and dialog windows by name using the Win32API.so library file. The documentation for these constants and functions can be found by searching msdn.

These functions are for floating toolbars and dialogs. Docked toolbars will not be changed.

move_toolbar("Views", [x, y, w, h])
hide_toolbar("Standard")
remove_caption("Styles")
show_toolbar("Standard")
restore_caption("Styles")

Remove Caption

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pw = FindWindow.call(c, name)
style = GetWindowLong.call(pw, GWL_STYLE)
SetWindowLong.call(pw, GWL_STYLE, style & ~WS_CAPTION)


Restore Caption

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pw = FindWindow.call(clss, name)
style = GetWindowLong.call(pw, GWL_STYLE)
SetWindowLong.call(pw, GWL_STYLE, style |  WS_CAPTION)
SetWindowPos.call(pw, 0, 0, 0, 0, 0, SWP_FRAMECHANGED|SWP_NOSIZE|SWP_NOMOVE)


WebDialog -> ToolWindow

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w = UI::WebDialog.new("New Web Dialog")
w.show
hwnd = FindWindow.call(DIALOG_CLASS, "New Web Dialog")
style = GetWindowLong.call(hwnd, GWL_EXSTYLE)
SetWindowLong.call(hwnd, GWL_EXSTYLE,  style | WS_EX_TOOLWINDOW)
SetWindowPos.call(hwnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED|SWP_NOSIZE|SWP_NOMOVE)


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require 'sketchup'
require 'Win32API'

# ShowWindow() flags
SW_HIDE        = 0
SW_SHOWNORMAL  = 1
SW_SHOWDEFAULT = 1
SW_MAXIMIZE    = 3
SW_SHOW        = 5
SW_MINIMIZE    = 6
SW_RESTORE     = 9

WS_CAPTION = 0x00C00000
GWL_STYLE = -16

# SetWindowPos() flags
SWP_NOSIZE       = 0x0001
SWP_NOMOVE       = 0x0002
SWP_DRAWFRAME    = 0x0020
SWP_FRAMECHANGED = 0x0020
SWP_NOREPOSITION = 0x0200

# SketchUp Info
SKETCHUP_CLASS = "Afx:00400000:b:00010011:00000006:3EFB027F"
TOOLBAR_CLASS  = "Afx:00400000:8:00010011:00000000:00000000"
DIALOG_CLASS   = "#32770" # Dialogs,  WebDialogs, and everything else.

# Windows Functions
FindWindow    = Win32API.new("user32.dll" , "FindWindow"   , ['P', 'P'] , 'N')
#FindWindowEx  = Win32API.new("user32.dll", "FindWindowEx" , ['N', 'N'  , 'P' , 'P'], 'N')
SetWindowPos  = Win32API.new("user32.dll" , "SetWindowPos" , ['P', 'P'  , 'N' , 'N' , 'N' , 'N', 'N'], 'N')
GetClassName  = Win32API.new("user32.dll" , "GetClassName" , ['P', 'P'  , 'I'], 'N')
GetWindowRect = Win32API.new("user32.dll" , "GetWindowRect", ['P', 'PP'], 'N')
SetWindowLong = Win32API.new("user32.dll" , "SetWindowLong", ['P', 'N'  , 'N'], 'N')
GetWindowLong = Win32API.new("user32.dll" , "GetWindowLong", ['P', 'N'] , 'L')
ShowWindow    = Win32API.new("user32.dll" , "ShowWindow"   , ['P', 'N'] , 'N')

# Originally in SketchyPhysic by Chris Phillips
def get_window_rect(name)
    pw = FindWindow.call(0, name)
    rect = Array.new.fill(0.chr,0..4*4).join
    GetWindowRect.call(pw, rect);
    rect=rect.unpack("i*")
    #turn rectangle into [top, left, width, height] instead of [top, left, right, bottom]
    rect[2]=rect[2]-rect[0] #w=x2-x1
    rect[3]=rect[3]-rect[1] #h=y2-y1
    return rect
end

def show_toolbar(name, sw=1)
    pw = FindWindow.call(TOOLBAR_CLASS, name)
    ShowWindow.call(pw, sw)
end

def hide_toolbar(name)
    pw = FindWindow.call(TOOLBAR_CLASS, name)
    ShowWindow.call(pw, SW_HIDE)
end

def move_toolbar(name, rect, flags = 0)
    pw = FindWindow.call(TOOLBAR_CLASS, name)
    return unless pw
    rect.flatten!
    x, y, w, h = rect
    SetWindowPos.call(pw, 0,  x, y, w, h, flags)
end

def move_dialog(name, rect, flags=SWP_NOSIZE)
    pw = FindWindow.call(DIALOG_CLASS, name)
    return unless pw
    rect.flatten!
    x, y, w, h = rect
    SetWindowPos.call(pw, 0,  x, y, w, h, flags)
end




[thomthom]

What I wanted to do was work out what flags to change to make a WebDialog into a ToolWindow. You haven't looked into that by any chance?

[Jim]

That would be an extended style WS_EX_TOOLWINDOW. I'm not sure that can be changed after run=time, but I will try it.

Styles:
http://msdn.microsoft.com/en-us/library ... 80%29.aspx

Extended Styles:
http://msdn.microsoft.com/en-us/library ... 71%29.aspx

[thomthom]

It can - I used to do it in Visual Basic when VB didn't offer full control over the windows. You can in fact change any window of any app - as long as you get its handle.

[Jim]

Yep, just did it. I'm just wondering of I am not writing a library that has already been written...

[thomthom]

How quickly can you get the window handle when opening webdialogs? Can you avoid a flicker of change?

[Jim]

Good question I don't know the answer to, but wouldn't the reliable way be to have the dialog send a message back to ruby when it's ready?

Or can you change the dialog to a toolwindow before you .show() it? Will need to test.

[thomthom]

Maybe the .show event of the dialog triggers as it's displayed? But I'm not sure if it wait for the HTML - which you do not want - as that will lag.

And can you do anything before calling show? You need a handle to the window - how are you getting that at the moment?

[Jim]

What does it mean when I get a negative value for a window style? How do I decode it into it's positive representation?

[thomthom]

From GetWindowLong?

[Jim]

yeah.

s = get_style("Ruby Console")
-1798569916

[thomthom]

hm....

Are you receiving the data in the correct data type?

[Jim]

Turns out the negative return value is not a problem - I just wasn't using it right.

[Jim]

Maybe the .show event of the dialog triggers as it's displayed? But I'm not sure if it wait for the HTML - which you do not want - as that will lag.

And can you do anything before calling show? You need a handle to the window - how are you getting that at the moment?

Using FindWindow - which is a basic search by window name and class.

[Jim]

For a WebDialog, I couldn't find a handle until it was shown. I used EnumWindows and EnumChildWidows to locate it.

But I didn't see a lag when applying the ToolWIndow class immediately after .showing the webdialog.

[thomthom]

Neat!

[Jim]

The Win32API.so file does not support the use of callbacks needed by EnumWindows and EnumChildWindows. So I have had to move to win32/api.so, which does support callbacks. But this will also allow more interesting things to be done, such as finding resizing Sketchup by its drawing area, and sending values to the Measurements box via a plugin.

[thomthom]

When there is multiple SketchUp windows open - how do you find the one you want?

[Jim]

Hopefully, the window titles are different. If not, I'm not sure.

[thomthom]

So you look for windows with "<filename> - SketchUp (Pro)"

[Jim]

Too fast... here's how to get the exact name. (But is_pro? is for windows 7+)

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def su_window_name
    pro = Sketchup.is_pro? ? " Pro" : ""
    if ((title = Sketchup.active_model.title).empty?)
        return ("Untitled - SketchUp" + pro)
    else
        return (title += ".skp - SketchUp" + pro)
    end
end


[thomthom]

But when there is two untitled windows there could be problems?

[Jim]

Yes, but in that case how would any program know which one the user meant?

You can find all of the matching windows. It's just hard to know which the user meant to use.

[thomthom]

Yes, but in that case how would any program know which one the user meant?

If you'd created the window then you'd get the handle from there. (Would be nice if the API could expose the handles in the Ruby API)

I suppose that if it is possible to get an array of matching windows one could filter out the window you want by checking if one of them is the active - if it's the active SU window you want. (Assuming SU is the currently active window)
Or maybe by Z-Order? Assuming that the top most is the most recent - again if that is what you want...

[thomthom]

In most cases you'd get the window the user is working on, right?
So how about
GetForegroundWindow - then, in case one of the toolbars or webdialogs are the active window, iterate down the hierarchy using GetParent - checking for matching window title?

[JD Hill]

If you have an API which supports EnumWindows, you can use GetProcessId and GetWindowThreadProcessId to filter on windows in the current process.

[thomthom]

But I didn't see a lag when applying the ToolWIndow class immediately after .showing the webdialog.

You got a snippet of how you applied the ToolWindow style?

[thomthom]

'N' instead of 'L'?
hm.. I'm a wee bit confused to exactly when to use what type...

[Jim]

From the pick-axe book:

Strings ``n'' and ``l'' represent numbers,
``i'' represent integers,
``p'' represents pointers to data stored in a string
``v'' represents a void type (used for export parameters only).
These strings are case-insensitive.

So I guessed you just use the type that is the best match to the API call parameters. In other words, your guess is as good as mine.

[thomthom]

is N === L ? "Number" vs Integer? Number == Float?