The only way to override the default shortcuts while the QTextEdit has focus is to intercept the QEvent::ShortcutOverride event. There are 2 ways to intercept this event: 1. write an event filter 2. subclass QTextEdit and then override the virtual event(QEvent* event) method. I prefer this 2nd method (pun intended) because anything that changes the functionality of a widget should probably be its own class.
Here is an example of how I block the QTextEdit from using all shortcuts that start with Ctrl being pressed:
If your PS3 does not connect to your controllers via wireless and you believe it is a problem with your controller, you may be very wrong. The Bluetooth/wireless module in the PS3 may have failed. The system is still 100% usable except if you update the system software when it asks you to the error 8002F1F9 will occur… forever
I just spent hours thinking the firmware I downloaded was corrupt, or the hard drive went bad, or the controller I was using was the problem. No, Nope, and Not that either. Now I have a PS3 that used to work just fine with the wired network and wired controllers sitting here like a brick in a never ending error loop.
Do NOT update the system software of your PS3 if the wireless controllers are not able to connect wirelessly.
I decided to start gathering some C code that I have written over the years into an easy to use library. The easy to use part is a work in progress but I plan to add lots of simple use cases to and documentation to help anyone who wants to use it.
I started to install Lubuntu 18 (a variant of Ubunutu) but the window graphics became corrupted after I selected the language. This is a known bug that sometimes occurs and there are various suggestions to workaround the problem. What worked for me?
The screen went to a black blinking cursor and then back to normal.
1. download and install python 3.x from the python website. this will include the py.exe python launcher
2. download and install python 2,x because Google doesn’t support 3.x when this was written
3. download and install the google cloud SDK and don’t use their bundled python option
4. when you open the google sdk command prompt, enter this to use the correct python version: SET PY_PYTHON=2
That’s it for the setup portion. Now for the real problem! You cannot execute the dev_appserver.py ./ python script and have it open a http server as expected. It will run and say something like “update#setState idle”
Also, you will get get an error (ERR_CONNECTION_REFUSED) trying to connect to locahost:8080. You need to do the following instead:
1. as mentioned in the install instructions for google cloud python sdk, you must install the missing python components using gcloud commands from a temp directory somewhere on your computer. This usually works: cd %TEMP%
2. now enter the gcloud command: gcloud components install app-engine-python
and when that is done get the extras because it didn’t work for me without them: gcloud components install app-engine-python-extras
3. now you can run the dev_appserver.py but you have to use the py.exe launcher to make sure the correct v2 python exe is used, so change directories to where your project is and enter this command: py “C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\bin\dev_appserver.py” ./app.yaml 4. open a web browser and go to http://localhost:8080 to see the results
There are so many times that I have wanted an easy way to show a QPixmap on a form while maintaining the aspect-ratio of the image that I finally sat down and made one. The single header file can be downloaded here: SpworksWidgetImage.zip. Extract the .h file and add it to any Qt project. It provides all of the necessary features to show an image when and where you want it using the SpworksWidgetImage class.
// Don't forget to #include "spworkswidgetimage.h"
// SETUP //
SpworksWidgetImage* scaledImage = new SpworksWidgetImage();
// OPTIONAL SETTINGS //
// fill the widget to 75% of the widget's size
// place the image in the bottom right corner of the widget
scaledImage->SpworksWidgetImage_SetAlignment(Qt::AlignRight | Qt::AlignBottom);
// paint the background of the entire widget white before painting the pixmap
// place a hidden border around the widget to keep the image off the edge
I can’t take credit for this post. Yes, I am the one writing the post, but the software I downloaded is just so incredibly powerful and easy to use that I feel guilty telling anyone how to use it. Still, I am about to shave a few minutes off your setup time so here goes…
1. Download SoX for your platform. I am going to use Windows for this “How To”
Here’s a link: http://sox.sourceforge.net/
2. Open the folder you installed SoX to. I chose D:\tools\sox because I like to put all of my favorite command line tools in one place.
3. Right click the example batch file and choose edit. This will open Notepad and you can replace all of the text with the following: cd %~dp0
mkdir "sox output"
FOR %%A IN (%*) DO sox %%A "sox output/%%~nxA" fade 0 10 .5 rate -v 48000
5. Save and close the batch file
4. Now just drag and drop any number of audio files onto the batch file and it will create a folder called “sox output” and save the first 10 seconds of each file to the new folder. The files will fade out quickly at the end so that you won’t hear any annoying clicks/pops that you would if you had just trimmed the file.
The full documentation for SoX comes with the installer as a PDF and includes lots of examples.