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VFP 愛用者社區 本討論區為 Visual Foxpro 愛用者經驗交流的地方, 請多多利用"搜尋"的功能, 先查看看有無前例可循, 如果還有不懂的再發問. 部份主題有附加檔案, 須先註冊成為社區居民才可以下載.
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Ruey
註冊時間: 2003-03-12 文章: 1698 來自: tunglo
第 1 樓
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發表於: 星期一 八月 25, 2003 7:24 pm 文章主題: 應用MSCOMM32.OCX (轉貼) |
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Title
Serial Data Parameters Detector for VFP
Download the file
bitrate2.zip
Summary
This sample form provides automatic detection of the parameters of an unknown data stream from an external device into a PC serial port using VFP7+ and the MSCOMM32.OCX control. It also provides for manual parameter setting to test the setup of the external device.
Description
Selecting "Initialize" starts the search for serial ports and modems on your PC. Once complete, enter your search string (if desired), select your port, handshaking method, and click "Auto". That's it. Note that ports in use by another application will not be available.
The "Search String" is case sensitive. The more discriminating the string, the better detection of false hits. Let's face it, even garbage will spit out an "a" occasionally. If left blank, the form will run continuously (forever). If you see some candidate data, hit "Hold" and data will continue to be displayed. Hit "Hold" again to resume. Examples might be "lb" for scale data, "$GP" for a GPS device, "/03" or "/2003" for PBX SMDR, or "Volts" for DMM data. To enter a control character, use the ALT key plus the 3 digit ANSI value on the numeric keypad. For example, to search for a STX character, ALT+002. You may or may not get a visual indication of the insert.
For those that like going it alone, just select the desired port and settings, put the form on "Hold", then click "Fixed". The port will be opened and any data received displayed. Handy for putting an external device to your known local settings.
The port can be changed on the fly by reselecting and clicking "Auto" or "Fixed". In the case of "Auto", scanning starts from the beginning settings.
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快樂媽咪系列幸福宅配,喝十全雞湯~原來幸福那麼簡單!!
學會VFP使用者社區的搜尋,Code才會更有趣~
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