save

问题 I want to users can change and save the theme color in my app. However, I have no ideas how to load the saved theme color when the app start running. For example, I want to load the saved theme color directly in the comment place below. I tried SharedPreference. However the SharedPreference instance need to run with await . It seems can't be used here. Is there any way I can load saved theme here directly instead of using setState or something like it？ import 'package:flutter/material.dart';

问题 How to take a screenshot of an OpenGL window in C++ and save it to file. I found the glReadPixels() function, but I don't know what to do next. Where I can set path to a file, for example? If not difficult, write code, please. 回答1: This piece of code captures the OpenGL window and export to a BMP file. You must have FreeImage library to run it. // Make the BYTE array, factor of 3 because it's RBG. BYTE* pixels = new BYTE[3 * width * height]; glReadPixels(0, 0, width, height, GL_RGB, GL

问题 How to take a screenshot of an OpenGL window in C++ and save it to file. I found the glReadPixels() function, but I don't know what to do next. Where I can set path to a file, for example? If not difficult, write code, please. 回答1: This piece of code captures the OpenGL window and export to a BMP file. You must have FreeImage library to run it. // Make the BYTE array, factor of 3 because it's RBG. BYTE* pixels = new BYTE[3 * width * height]; glReadPixels(0, 0, width, height, GL_RGB, GL

问题 How to take a screenshot of an OpenGL window in C++ and save it to file. I found the glReadPixels() function, but I don't know what to do next. Where I can set path to a file, for example? If not difficult, write code, please. 回答1: This piece of code captures the OpenGL window and export to a BMP file. You must have FreeImage library to run it. // Make the BYTE array, factor of 3 because it's RBG. BYTE* pixels = new BYTE[3 * width * height]; glReadPixels(0, 0, width, height, GL_RGB, GL

问题 I am making a drawing program with pygame in which I want to give the user an option of saving the exact state of the program and then reloading it at a later time. At this point I save a copy of my globals dict and then iterate through, pickling every object. There are some objects in pygame that cannot be pickled, but can be converted into strings and pickled that way. My code is set up to do this, but some of these unpicklable objects are being reached by reference. In other words, they

问题 I've started learning React Native. I'm using Visual Studio Code as my editor. I've set up the boiler plate and started the app. But whenever I change a .js file and hit save, VSCode is messing up all the formatting. I thought I could sort this in the settings.json file but after googling for a while and playing around I can't find the correct setting. Is this a bug or am I doing something wrong? Setting file is default one: UPDATE: I re-installed vscode. Then set up a basic js file with a

问题 I want to use export-view to save an image of my model. I have made a button in the interface to export image (JPG, PNG, or PDF) from the Netlogo. this is my current code in the export-view button file-open user-new-file export-view (word "view1.jpg") set view-number view-number + 1 Currently, file-open command helps in showing a pop-up input window before saving. There is a runtime error of "FILE-OPEN expected input to be a string but got the TRUE/FALSE false instead". I can still save the

问题 I need to use the "savefig" in Python to save the plot of each iteration of a while loop, and I want that the name i give to the figure contains a literal part and a numerical part. This one comes out from an array or is the number associated to the index of iteration. I make a simple example: # index.py from numpy import * from pylab import * from matplotlib import * from matplotlib.pyplot import * import os x=arange(0.12,60,0.12).reshape(100,5) y=sin(x) i=0 while i<99 figure() a=x[:,i] b=y[

问题 I need to use the "savefig" in Python to save the plot of each iteration of a while loop, and I want that the name i give to the figure contains a literal part and a numerical part. This one comes out from an array or is the number associated to the index of iteration. I make a simple example: # index.py from numpy import * from pylab import * from matplotlib import * from matplotlib.pyplot import * import os x=arange(0.12,60,0.12).reshape(100,5) y=sin(x) i=0 while i<99 figure() a=x[:,i] b=y[

问题 This part of the topic is solved, see my last answer to this topic. I'm having trouble to save a dictionary using the pyexcel module. I instaled the pyxecel module with pip3 install pyexcel So I have a dictionary and I'm doing this: import pyexcel as pe myDict = {...} pe.save_as(dict = myDict, dest_file_name = "dest_file.xls") In my terminal, when I compile the code, it prints myDict but just after I have this: Otherwise unrecognized parameters were given. terminal output I look for a