python

■ jwFreeNote_01

Ked   Russia  (524 posts)   bio
Date	Fri 09 Sep 2005 11:16 AM (UTC) Amended on Fri 09 Sep 2005 12:50 PM (UTC) by Ked
Message	I found a recipe on ActiveState's Cookbook that shows how to change colours of an application's menu, and immediately recalled that Mushclient has that world.GetFrame callback. So here's a function that will add some colour to the menu bar in Mushclient. This requires you to have the ctypes package installed (in addition to a working Python installation of course). Ctypes is a tiny extension that allows you to call native DLL's - both *nix and Windows - directly from Python without requiring any additional wrapping. """ Borrowed from ASPN Cookbook recipe: aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440507 """ import win32con from ctypes import * # Structure passed to CreateSolidBrush function # Represents RGB class COLORREF(Structure): _fields_ = [ ("byRed", c_byte), ("byGreen", c_byte), ("byBlue", c_byte) ] # Menu structure used in calls to SetMenuInfo class MENUINFO(Structure): _fields_ = [ ("cbSize", c_long), ("fMask", c_long), ("dwStyle", c_long), ('cyMax', c_long), ("hbrBack", c_long), ("dwContextHelpID", c_long), ("dwMenuData", c_long) ] user32 = windll.user32 DrawMenuBar = user32.DrawMenuBar GetMenu = user32.GetMenu GetSubMenu = user32.GetSubMenu GetSystemMenu = user32.GetSystemMenu SetMenuInfo = user32.SetMenuInfo GetMenuInfo = user32.GetMenuInfo gdi32 = windll.gdi32 CreateSolidBrush = gdi32.CreateSolidBrush def ChangeMenuBarColor(): """ Changes the background color of the menubar and optionally gives different colors to menu items """ col = COLORREF(255,255,255) # Get the frame handle hwnd = c_int(int(world.GetFrame)) # Instantiate MENUINFO menuinfo = MENUINFO() # Important to set the size menuinfo.cbSize = sizeof(MENUINFO) menuinfo.fMask = win32con.MIM_BACKGROUND col = COLORREF(55, 150, 12) menuinfo.hbrBack = CreateSolidBrush(col) # Important! Pass *pointer* of the menuinfo instance to the win32 call SetMenuInfo(GetMenu(hwnd), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS col = COLORREF(255, 255, 0) menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 0), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS col = COLORREF(128, 255, 128) menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 1), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 2), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 3), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 4), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 5), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 6), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 7), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 8), byref(menuinfo)) menuinfo.fMask = win32con.MIM_BACKGROUND | win32con.MIM_APPLYTOSUBMENUS menuinfo.hbrBack = CreateSolidBrush(col) SetMenuInfo(GetSubMenu(GetMenu(hwnd), 9), byref(menuinfo)) DrawMenuBar(hwnd) As you can see, after getting the window handle from Mushclient, the function above makes direct calls to User32 and GDI32 Windows libraries to set the new colour values. Put the above in your world file and just enter: /ChangeMenuBarColor() in the input window (if you have inline scripting enabled and your script prefix is the default "/"). The functionality of ctypes isn't limited to changing menu colours only, of course. There's alot more one can do with Win API, but as I don't know it at all I can't think of any particularly cool ways to hack up Mushclient's interface. Ideas? EDIT: I seem to have somehow broken and then fixed this back.  top

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Posted by	Shadowfyr   USA  (1,745 posts)   bio
Date	Fri 09 Sep 2005 05:57 PM (UTC)
Message	http://www.mentalis.org/agnet/apiguide.shtml The program they have here is useful, but not 100% complete. It only contains calls and examples that they have provided such examples of on their site and 'some' things are missing, like the actual values of certain flags. Or in others words if they list: SOMETHING - Does something. SOMETHING2 - Does something else. It won't tell you that 'something' = 0x02 and 'something2' = 0x04. You end up having to check Microsoft's site for that, or a developers handbook/MFC Bible, etc. As an example of the limitations, the API Guide (for the WinInet API) contains InternetGetConnectedState, but *not* InternetGetConnectedStateEx, InternetHangUp, InternetDial, InternetAutoDial or InternetAutoDialHangUp. You could therefor (if using a dialup modem), detect 'if' its connected but not dial in or disconnect by looking in the API Guide for how. I have no idea what other functions are missing, but probably a lot. Still, its interesting to look through and more convenient that paying $60+ for a book that also misses things or hunting online for something you don't really know the name of. ;) main { __if Schrodinger_Cat is Alive or version >= "XP" then ____if version = "Vista" then call Mangle_with_DRM() ____call Functional_Code() __else ____call Crash_Windows()}