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App Inventor 2 如何下载/保存网络图片? - App Inventor 2 中文网 - 清泛I...

...url进行数据交互场景就要考虑使用它,Web客户端 组件“通信连接”抽屉中:设置好网络图片url,然后执行Get方法即可,代码如下:其中,特别要注意是保存响应信息属性设置为真,这样才能将目标网络图片保存到本地...
https://bbs.tsingfun.com/thread-2112-1-1.html 

【拍照图片处理】Attempt to invoke virtual method 'boolean android.grap...

做图片识别App时候,选择相册图片没有问题,拍照后图片就报错: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference 图片大致处理流程是...
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What is a dependency property?

What is a dependency property in .Net (especially in WPF context). What is the difference from the regular property? 3 Answ...
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Getting “type or namespace name could not be found” but everything seems ok?

... excellent - this worked - I had to upgrade my WPF app client to use the full .NET Framework 4. Not sure what impact this will have on the client footprint? I did try downgrading the library I have to the .Net 4 Client Profile however when I did this it had similar iss...
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eclipse cdt 运行程序时添加依赖库路径 - C/C++ - 清泛网 - 专注C/C++及内核技术

...lipse-cdt-ld-library-path我们知道Linux即使依赖库和可执行文件同一目录下,如果不使用 LD_LIBRARY_PATH 指定库路径(即当前目录)话,仍然会报加载不到依赖库错误。那么Eclipse CDT也是类似,可 我们知道Linux即使依赖库和可执行...
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Intel SMID指令集编译错误: inlining failed in call to always_inline \'x...

...ne 'xxx': target specific option mismatch xxxintel_smid_compile_error最近使用CPU指令集优化代码时候,编译出错,报错如下: usr lib64 gcc x86_64-suse-linux 7 include avx2intrin h:252:1: error: inlining failed in call to always_i 最近使用CPU指令集优化代码...
https://bbs.tsingfun.com/thread-1375-1-1.html 

BLE蓝牙APP输入物理地址连接 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...APP 快捷方便,因BLE 蓝牙无需配对 快速连接实属方便,但同一个地方使用多个蓝牙模块问题就出现了,如果使用APP inventor2 APP界面首先输入蓝牙模块物理地址 然后点击搜索刚输入模块物理地址连接是否可以,请各位老...
https://bbs.tsingfun.com/thread-2191-1-1.html 

mobile location - App应用开发 - 清泛IT社区,为创新赋能!

通过android studio实现:  屏幕上输入手机号码,点击确定开始查找,用gps数据确定手机当前精确位置,精确度5米,找到后把经纬度写两个文字框里,并百度地图上标注出位置,并移动到屏幕中央,放大地图。 Imple...
https://www.tsingfun.com/it/cpp/2040.html 

error C2780: \'void __cdecl std::sort(_RI,_RI,_Pr)\' : expects 3 argum...

... sort(ivec1.begin(), ivec1.rend());//类型不匹配错误 可以编译时检查出来 } 解决方法: sort函数重载有两个版本,所以出现上面错误提示,无论哪个版本,要求给定一对迭代器范围,而标准库中,有输入范围泛型算...
https://www.tsingfun.com/it/cpp/2181.html 

解决:CStatic控件单击STN_CLICKED消息没反应 - C/C++ - 清泛网 - 专注C/C++及内核技术

...将其改成TRUE就OK了,默认属性为FASLE,即静态文本控件默认情况下是不发送通告消息...修改CStatic控件Notify属性(即SS_NOTIFY风格),将其改成TRUE就OK了,默认属性为FASLE,即静态文本控件默认情况下是不发送通告消息...