Windows Mobile & Embedded - 随笔分类 - Levins Dai

Pixel doubling, why's it there?

摘要：In general, PocketPC supports high-DPI and Low-DPI (192 and 96 respectively) display modes. As you know, image with fixed resolution will be displayed in a smaller size on Higher DPI screen. For examp... 阅读全文

posted @ 2006-05-13 08:46 Levins Dai 阅读(919) 评论(1) 推荐(0)

Why does current running process always be mapped to slot 0?

摘要：We know that WinCE 5.0 supports 32 processes running simultaneously at most. Each process resides in a continuous 32M virtual memory space, namely Slot. The 32 processes slots range from Slot 2 - 33, ... 阅读全文

posted @ 2006-02-24 19:46 Levins Dai 阅读(932) 评论(1) 推荐(0)

What's the difference between GetThreadPriority and CeGetThreadPriority?

摘要：In Win32, every single thread has a priority ranging from 0 (lowest priority) to 31 (highest priority). The priority value is determined by both thread priority level and process priority class. GetTh... 阅读全文

posted @ 2006-01-15 16:45 Levins Dai 阅读(963) 评论(0) 推荐(0)

How to send class 0 message on Windows Mobile 5.0?

摘要：According to GSM Spec, Class 0 SMS is defined as text messages that display on MS immediately when arrive and do not have to be saved in MS or SIM. Windows Mobile 5.0 supports sending and receving cla... 阅读全文

posted @ 2006-01-06 22:21 Levins Dai 阅读(1939) 评论(0) 推荐(0)

再说GSM SMS文字短信编码与长度

摘要：前面提到过，GSM SMS可以采用7 bits的编码方式，从而在1120 bits的长度里可以容纳160个字符。但有一点没有说清楚（或者说得不正确），理论上ASCII字符集的前127个字符都可以采用这种方式编码，但事实却不是如此。最明显的一个例子是[，ASCII编码为0x5B，但在GSM SMS中却是用两个7 bits来表示。所以当你编辑短信输入[（或者]）的时候，就会很奇怪的发现，短信的长度多了... 阅读全文

posted @ 2005-11-25 23:41 Levins Dai 阅读(3517) 评论(0) 推荐(0)

Windows Mobile 文字短信的长度

摘要：在Windows Mobile里面，可以很方便的编辑长度无限制的文字信息，pOutlook会自动把它分割成若干条短信（SMS），再把它们发送出去。但可能很多人也注意到了，在短信编辑窗口的最下面，有类似这样的一串字："5/160"。很多人直观地认为160是一条短信的最大长度，5是当前输入文字的长度，但随后慢慢地可能发现，这个数字并不是想象的那么直观：首先，对于不少老式的简体中文手机（比如Noika ... 阅读全文

posted @ 2005-11-10 22:10 Levins Dai 阅读(2254) 评论(4) 推荐(0)

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