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How do I solve Kivy error: Bad Window (invalid Window parameter)?


How do I solve Kivy error: Bad Window (invalid Window parameter)?

By : Est
Date : November 21 2020, 03:00 PM
Any of those help My problem was solved with updates. After about a month I was able to use Kivy as intended with no error.
code :


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Closing Window and Thread Generates Invalid Window Handle Error - C++

Closing Window and Thread Generates Invalid Window Handle Error - C++


By : user2509958
Date : March 29 2020, 07:55 AM
help you fix your problem You are passing an invalid window handle to GetMessage, which is why it's failing and reporting that a window handle is invalid.
You'll see the same error if you run this code with a made-up window handle:
code :
MSG msg = {0};
BOOL b = ::GetMessage(&msg, (HWND)(0x123000), 0, 0);

if (b == -1)
{
    DWORD dwErr = ::GetLastError();
    wprintf(L"%lu\n", dwErr);
}
In linux, get window class raise "X Error of failed request: BadWindow (invalid Window parameter)"

In linux, get window class raise "X Error of failed request: BadWindow (invalid Window parameter)"


By : Sai Krishnan
Date : March 29 2020, 07:55 AM
I hope this helps . I find the solution, as error message show"(invalid Window parameter)”, it means I should first get window, in my case 62914561 is google-chrome window id(I get it with xdotool search google-chrome), following code should work
code :
#include <X11/Xutil.h>
#include <xdo.h>

int main(int argc, char **argv) {
    Display *display = XOpenDisplay(NULL);
    XWindowAttributes attr;
    XClassHint classhint;
    Window window = 62914561;
    XGetWindowAttributes(display, window, &attr);

    if (XGetClassHint(display, window, &classhint)) {
        classhint.res_name;
    }
}
X11 JNA Bad Window (invalid Window parameter) causes JVM exit

X11 JNA Bad Window (invalid Window parameter) causes JVM exit


By : Richard Robins
Date : March 29 2020, 07:55 AM
With these it helps Looks like the default error handler causes exit, but can be overridden. For example
code :
x11.XSetErrorHandler(new XErrorHandler() {

    @Override
    public int apply(Display display, XErrorEvent errorEvent) {
        System.err.println("bad fish " + errorEvent);
        return 0;
    }
});
importing Window from kivy.core.window opens a second Kivy window that crashes

importing Window from kivy.core.window opens a second Kivy window that crashes


By : user7050648
Date : March 29 2020, 07:55 AM
wish help you to fix your issue That is highly expected because Kivy is built on this importing behavior. On a simple Window import e.g. in a console:
code :
>>> from kivy.core.window import Window
class MainConsole():
    def build(self):
        texture = Texture.create()  # no window, boom
if __name__ == '__main__':
    MainApp().run()  # except other stuff also creates a window
class MainConsole():
    def build(self):
        from kivy.core.window import Window
        texture = Texture.create()  # window, no boom
def blob():
    from kivy.core.window import Window
    texture = Texture.create()
X Error: BadDrawable (invalid Pixmap or Window parameter) when launching Spyder on GNOME

X Error: BadDrawable (invalid Pixmap or Window parameter) when launching Spyder on GNOME


By : David Good
Date : March 29 2020, 07:55 AM
it should still fix some issue I had the same error. What worked for me is to add this line in /etc/environment.
sudo nano /etc/environment
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