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MidiVirtualKeyboard.Create method |
  
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MidiVirtualKeyboard.Create method |
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Remarks
Creates a new virtual piano keyboard on the given parent window.
Notes played on the virtual piano, through the left button of the mouse, will be directly sent to the MIDI stream in playback on the given player.
Keys pressure/release can be simulated through the MidiVirtualKeyboard.Note method, for example for displaying a note played through an external physical MIDI keyboard attached to one of the MIDI input channels.
The container application is notified each time a key on the virtual keyboard is pressed or released through the MidiKeyboardNotification event.
For further details about the use of the virtual MIDI keyboard see the MidiVirtualKeyboard object section and the How to manage the virtual MIDI piano keyboard tutorial.
Syntax
[Visual Basic] MidiVirtualKeyboard.Create ( hWndParent as IntPtr, nLeft as Int32, nTop as Int32, nWidth as Int32, nHeight as Int32, nLowNote as Int16, nHighNote as Int16, bSendEventNotif as Boolean, nOrientation as enumDjcMidiKeyboardOrientations ) as IntPtr |
[C#] public IntPtr MidiVirtualKeyboard.Create ( IntPtr hWndParent, Int32 nLeft, Int32 nTop, Int32 nWidth, Int32 nHeight, Int16 nLowNote, Int16 nHighNote, bool bSendEventNotif, enumDjcMidiKeyboardOrientations nOrientation ); |
[C++] public: IntPtr MidiVirtualKeyboard.Create ( IntPtr hWndParent, Int32 nLeft, Int32 nTop, Int32 nWidth, Int32 nHeight, Int16 nLowNote, Int16 nHighNote, bool bSendEventNotif, enumDjcMidiKeyboardOrientations nOrientation ); |
Parameter |
Description |
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hWndParent |
Handle of the parent window, usually the container form. |
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nLeft |
Left position of the keyboard window, expressed in client coordinates (pixels) of hWndParent |
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nTop |
Top position of the keyboard window, expressed in client coordinates (pixels) of hWndParent |
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nWidth |
Width of the keyboard window, expressed in pixels |
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nHeight |
Height of the keyboard window, expressed in pixels |
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nLowNote |
Lower note displayed on the virtual piano keyboard. Can be a value between 0 and 127 but must always be a natural note (white key). |
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nHighNote |
Higher note displayed on the virtual piano keyboard. Can be a value between 2 and 127 but must always be a natural note (white key). |
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bSendEventNotif |
Reserved for future uses. Set this value to BOOL_FALSE. |
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nOrientation |
Orientation of the piano keyboard. Supported values are the following:
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Return value
Value |
Meaning |
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IntPtr.Zero |
An error occurred, check the LastError property value in order to get the error code |
Other values |
Handle (HWND) of the new virtual piano keyboard |
