Zitat von SteveG <[EMAIL PROTECTED]>: > Evening all (or as your timezone requires) > > I have a Windows library of functions being converted to Linux > equivalents (slowly) - but a few things are losing me on the way > > Win function: EnumWindows and EnumChildWindows return all window handles > and children as used directly by the LCL. > xQueryTree in Lin returns TWindow pointers, which are not direct > handles to the window. > How do I determine the actual window handle from the TWindow returned, > and will this also allow me to find the 'name' of the window / control, > not just the Title. > If I use GDK_WINDOW_XWINDOW( > PGdkWindowPrivate(GTK_WIDGET(WinHandle)^.window)) on a window 'handle' > passed from the LCL, it gives me the > TWindow pointer associated, but seems to be the top level window for > the project, not a pointer the 'control' itself (I think)
The gtk does not create for every widget a window. That means some childs share their parent xwindow. The gtk2 has reduced that even further. Almost all childs share their parent xwindow. > I am working on the assumption that each window/control > (forms/buttons/etc) are TWindows ? - > If not, how do I enum the windows/controls associated with a specific > TWindow and determine the 'controls' window handle and name ? The LCL has a tree structure, and the gtk as well. Basically for each LCL control there can be several gtk widgets. Both trees can be used to traverse. > To summarize: > Under Linux I would like to enumerate all open windows and their > children, gathering 'actual' window handles, and control names (to be > used within the LCL). > > :and just as an extra :) > Win function: WindowFromPoint(Point :TPoint) returns the handle of the > window at x,y of Point > Is there a Lin equiv ? - xQueryPointer seems close, but only returns > window at curr cursor position See FindLCLWindow, FindLCLControl, FindOwnerControl. > any suggestions really appreciated. (really) Keep in mind, that your code will rely on gtk and LCL internals, which are not supported, and can change any time without announcement. Mattias _______________________________________________ Lazarus mailing list [email protected] http://www.lazarus.freepascal.org/mailman/listinfo/lazarus
