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我想使用照相机组件显示出错 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
我想使用照相机组件，显示出错，错误代码如下：The operation TextColor cannot accept the arguments: , ["file:///storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files/Pictures/app_inventor_1727434191034.jpg"]
注意： 5秒钟后将报告另一条错误...
App Inventor 2 天气预报App开发 - 第三方API接入的通用方法 · App Inventor 2 中文网
...参数，通过Web客户端请求url。返回json格式的数据结果，使用AppInventor2解析json结果，显示到App上即可。
第三方天气API介绍
第三方天气的api平台特别多，这里仅以“和风天气”（dev.qweather.com）作为演示，其他平台的使用方法都...
How to create an installer for a .net Windows Service using Visual Studio
How do I create an installer for a Windows Service that I have created using Visual Studio?
5 Answers
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CMFCTabCtrl的使用、颜色样式调整 - C/C++ - 清泛网 - 专注C/C++及内核技术
CMFCTabCtrl的使用、颜色样式调整CMFCTabCtrl使用，添加Tab、设置Tab样式，AutoColor自动设置Tab颜色效果等。1.在指定位置处创建一个CMFCTabCtrl，并给其添加4个CEdit:
CRect rectTab;
CEdit m_wnd1;
CEdit m_wnd2;
CEdit m_wnd3;
CEdit m_wnd4;
CMFCTabCtrl m_wn...
Reliable method to get machine's MAC address in C#
... the OS it is running using C#. Application will need to work on XP/Vista/Win7 32 and 64 bit as well as on those OSs but with a foreign language default. Many of the C# commands and OS queries don't work across OS. Any ideas? I have been scraping the output of "ipconfig /all" but this is terribl...
Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...created a VB script which installs and configures Chrome (tested in XP and Win 7). Launch the script, and a file dialog appears (or: Drag & drop the chrome installer on the VBS). Select the destination of the Chrome installer, and the script automatically unpacks the files and duplicates the pro...
How to find reason of failed Build without any error or warning
...e me: to use this method you may have to search the contents of the output window. My build errors were being hidden by #pragma warning disable statements and were only visible when I searched 'error' in the output window.
– sirdank
Nov 4 '16 at 16:51
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Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
I'm trying to compile a python extension with cython in win 7 64-bit using mingw (64-bit).
I'm working with Python 2.6 (Active Python 2.6.6) and with the adequate distutils.cfg file (setting mingw as the compiler)
...
App Inventor 2 Encrypt.Security 安全性扩展：MD5哈希，SHA1和SHA256哈希...
...64编码结果。属性AesKey将自动设置。
AesEncrypt
AES加密后使用属性AesKey和IV.Input内容，模式和填充返回结果。
content：要加密的明文
填充：AES加密填充，也可以是PKCS5Padding，PKCS7Padding，ISO10126或ANSIX923
模式：AES加密方式，也...
编译错误 error: ‘typeof’ cannot be used as a function - C/C++ - 清泛网 - 专注C/C++及内核技术
...ot be used as a function。解决方法：修改C编译选项 -std=gnu99，使用GNU99 编译一些开源的C项目，发现typeof关键字不能被识别，报错： error: ‘typeof’ cannot be used as a function。
解决方法：修改C编译选项 -std=gnu99，使用GNU99编译，...