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| PianoRoll * | GuidoAR2PianoRoll (PianoRollType type, ARHandler arh) | 
|  | Creates a new piano roll from AR, corresponding to type : simplePianoRoll -> basic piano roll trajectoryPianoRoll -> every event is graphically linked to the previous one.  More... 
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| PianoRoll * | GuidoMidi2PianoRoll (PianoRollType type, const char *midiFileName) | 
|  | Creates a new piano roll from Midi, corresponding to type : simplePianoRoll -> basic piano roll trajectoryPianoRoll -> every event is graphically linked to the previous one.  More... 
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| GuidoErrCode | GuidoDestroyPianoRoll (PianoRoll *pr) | 
|  | Destroys a guido piano roll and releases all the associated ressources.  More... 
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| GuidoErrCode | GuidoPianoRollSetLimits (PianoRoll *pr, LimitParams limitParams) | 
|  | Sets limits to a piano roll (start/end date, lower/higher pitch)  More... 
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| GuidoErrCode | GuidoPianoRollEnableKeyboard (PianoRoll *pr, bool enabled) | 
|  | Enables keyboard or not (not enabled by default)  More... 
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| GuidoErrCode | GuidoPianoRollGetKeyboardWidth (PianoRoll *pr, int height, float &keyboardWidth) | 
|  | Gets the piano roll keyboard width.  More... 
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| GuidoErrCode | GuidoPianoRollEnableAutoVoicesColoration (PianoRoll *pr, bool enabled) | 
|  | Enables or not the automatic voices coloration (not enabled by default) (not for a midi rendering) // REM: � voir If a color is manually set with GuidoPianoRollSetColorToVoice, automatic color will not be applied for this voice.  More... 
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| GuidoErrCode | GuidoPianoRollSetRGBColorToVoice (PianoRoll *pr, int voiceNum, int r, int g, int b, int a) | 
|  | Sets a RGB color to a voice (first voice is number 1) (black by default)  More... 
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| GuidoErrCode | GuidoPianoRollSetHtmlColorToVoice (PianoRoll *pr, int voiceNum, long color) | 
|  | Sets a html color to a voice (first voice is number 1) (black by default)  More... 
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| GuidoErrCode | GuidoPianoRollSetColorToVoice (PianoRoll *pr, int voiceNum, const std::string &color) | 
|  | Sets a html color to a voice (first voice is number 1) (black by default)  More... 
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| GuidoErrCode | GuidoPianoRollRemoveColorToVoice (PianoRoll *pr, int voiceNum) | 
|  | remove a color to a voice (first voice is number 1) (black by default)  More... 
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| GuidoErrCode | GuidoPianoRollEnableMeasureBars (PianoRoll *pr, bool enabled) | 
|  | Enables or not measure bars (false by default)  More... 
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| GuidoErrCode | GuidoPianoRollSetPitchLinesDisplayMode (PianoRoll *pr, int mode) | 
|  | Sets the pitch lines display mode (automatic by default). Use Pitch lines display mode constants to pick lines which will be be displayed. Example : "kCLine + kGLine" will displayed C and G line. "kNoLine" doesn't display any line. "kAutoLines" adjust line display according to piano roll pitch range (automatic possibilities : no line, C line, C and G line, chromatic scale, diatonic scale);.  More... 
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| GuidoErrCode | GuidoPianoRollGetMap (const PianoRoll *pr, int width, int height, Time2GraphicMap &outmap) | 
|  | Gets the piano roll map.  More... 
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| GuidoErrCode | GuidoPianoRollOnDraw (PianoRoll *pr, int width, int height, VGDevice *dev) | 
|  | Draw the piano roll on a VGDevice.  More... 
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