/******************************************************************* * * gdriver.h : Graphics utility driver generic interface 1.1 * * Generic interface for all drivers of the graphics utility used * by the FreeType test programs. * * Copyright 1996-1999 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used * modified and distributed under the terms of the FreeType project * license, LICENSE.TXT. By continuing to use, modify or distribute * this file you indicate that you have read the license and * understand and accept it fully. * ******************************************************************/ #ifndef GDRIVER_H #define GDRIVER_H /* Note that we now support an event based model, even with */ /* full-screen modes. It is the responsability of the driver */ /* to map its events to the TEvent structure when called */ /* through Get_Event. */ /* The event classes are defined in the file 'gevents.h' included */ /* by the test programs, not by the graphics utility. */ typedef struct _TEvent { int what; /* event class */ int info; /* event parameter */ } TEvent; /* Get last event. In full-screen modes, a keystroke must be */ /* translated to an event class with a parameter. */ void Get_Event( TEvent* event ); /* A call to this function must set the graphics mode, the Vio */ /* variable, as well as the values vio_ScanLineWidth, vio_Width */ /* and vio_Height. */ int Driver_Set_Graphics( int mode ); /* Restore previous mode or release display buffer/window */ int Driver_Restore_Mode( void ); /* display bitmap on screen */ int Driver_Display_Bitmap( char* buffer, int line, int col ); #endif /* GDRIVER_H */ /* End */