Use the File->MIDI window to send optional MIDI data through a MIDI interface connected to your iPad when a PDF is loaded.
File-MIDI allows you to type in MIDI messages that can get sent when a file is loaded and when a page is changed. Simply type in the raw MIDI data (as hex values) or set the Channel and use the Program and Controller buttons to enter default MIDI values. Use the Test button to send the MIDI data to your MIDI keyboard. The Clear button will remove any MIDI messages from the list area. Note that MIDI data entered must be in HEX (such as C0 01). Any line that starts/contains a semicolon (;) is treated as a comment. The Channel button is only used for entry. Messages are not channelized when sending. Bytes are sent as is. If you prefer to use decimal instead of hex, you can type in a decimal value and press the Program or Controller button. There is also a decimal to hex converter built in. Simply type a decimal value and the hex equivalent will be shown.
Any line with ; is a comment line.
Any line with the word pause will delay transmission by 250 ms.
Expert MIDI options (only available if expert MIDI is on in globals)
Only send page 1 MIDI messages when file is loaded. Any MIDI message that is currently assigned to page 1, will only be sent when the file is loaded. Turning back to page 1 wil not send MIDI. Use this when you want to send a MIDI configuration message once when the file is loaded.
Text File > This allows you to create text files on your computer that are MIDI commands (in Hex) for reuse. For example, you could create a text file that sends a bunch of MIDI strings and reuse them over and over in several documents. If a change to the MIDI strings needs to be made, you do it once in the text document and the changes are reflected for all documents that use that MIDI text file. The MIDI text file must contain the same types of HEX commands that unrealBook uses for MIDI.
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