VC6模拟LCD滚屏效果源码

Class Members for MatrixStatic digital display. By Nic Wilson (C) 2002 nicw@bigpond.net.au /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetAutoPadding This function pads the internal display string (set with the SetText() function) with a supplied character so that it equals the length of the value supplied in the SetXCharsPerLine() function. void SetAutoPadding( bool pad, char ch = ' '); PARAMETERS pad A C++ boolean variable. true = Strings will be automatically padded with the given character to equal the value supplied to the class in the SetXCharsPerLine() function. false = No auto padding will occur. ch a char variable. This parameter is optional as it defaults to a space character. This is the character used to pad the string if the above parameter is true. RETURN VALUE --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::GetText This function fills a supplied buffer with the text that was set in the SetText() function. int GetText( char *string, int size); PARAMETERS string A pointer to a buffer the requested text will be placed in to. size An integer containing the length of the supplied buffer. RETURN VALUE Function returns an integer of the number of characters placed in the buffer. --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetDisplayColors This function sets all three colours of the display characters in a single function call. void SetDisplayColors( COLORREF bk, COLORREF on, COLORREF off); PARAMETERS bk A COLORREF variable which supplies the RGB(x, x, x) value of the background colour of the display. on A COLORREF variable which supplies the RGB(x, x, x) value of the on colour of the display. off A COLORREF variable which supplies the RGB(x, x, x) value of the off colour of the display. RETURN VALUE --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetBkColor This function sets the background colour of the display. void SetBkColor( COLORREF bk); PARAMETERS bk A COLORREF variable which supplies the RGB(x, x, x) value of the background colour of the display. RETURN VALUE --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetColor This function sets the on and off colours of the display. void SetColor( COLORREF off, COLORREF on); PARAMETERS on A COLORREF variable which supplies the RGB(x, x, x) value of the on colour of the display. off A COLORREF variable which supplies the RGB(x, x, x) value of the off colour of the display. RETURN VALUE --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetBitmapResource This function is optional. It allows for an alternate bitmap resource to be supplied. (See the supplied resource bitmaps which can be used as a template for new character formats.) There are three bitmap resources supplied that the program requires. The correct one to use is set when you call the SetSize() function. They must have the ID's of(IDB_MATRIXLARGE, IDB_MATRIXSMALL and IDBMATRIXTINY). If this function is used to supply a new or different bitmap, even if the format is the same, you must also call the MatrixStatic::SetCustomCharSizes function to supply information about this bitmap. void SetBitmapResource( UINT bitmap); PARAMETERS bitmap Resource identifier of the bitmap resource. RETURN VALUE SEE ALSO SetSize which identifies the different size bitmaps supported. SetCustomCharSizes() which allows different format bitmaps. --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetText This function supplies the text that is to be displayed. Once called your supply string can be deleted, the text is stored in a member CString variable. void SetText( LPCTSTR lpszText); PARAMETERS lpszText A 32-bit pointer to a constant character string RETURN VALUE --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetSize This function identifies which of the three supported sized bitmaps was supplied in the SetBitMapResource() function. void SetSize( int size = SMALL); PARAMETERS size an integer variable that identifies which of the three bitmap sizes supported was given in the SetBitMapResource() function. Possible values are LARGE, SMALL & TINY, which a defined within the class as 0, 1 & 2 integers respectively. RETURN VALUE SEE ALSO See the three supplied bitmap templates as an example of this. SetCustomCharSizes() which allows custom format bitmaps. --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::StopScroll This function ceases the scrolling of the display. void StopScroll(); PARAMETERS RETURN VALUE --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::DoScroll This function starts the display scrolling in the supplied direction. This is not a pixel scroll but a character scroll. void DoScroll( int speed, BOOL dir); PARAMETERS speed Speed of the scrolling in milliseconds. This is the same value you would supply to the Windows SetTimer() function. dir Direction of scroll. Possible values are. SINGLE LINE DISPLAYS: (SetNumberOfLines was supplied a value of 1) LEFT or RIGHT, defined within the class as boolean 0 or 1 respectively. MULTILINE DISPLAYS: (SetNumberOfLines was supplied a value greater than 1) UP, DOWN, LEFT or RIGHT, defined within the class as 0, 1, 2 or 3 respectively. RETURN VALUE --------------------------------------------------------------------------------------------------------------*/ /*------------------------------------------------------------------------------------------------------------- MatrixStatic::SetCustomCharSizes This function allows you to use custom format bitmaps. It sets the pixel sizes of the each character and the vertical and horizontal spacing. These values are automatically filled in for the three internally supported sizes of bitmaps. void SetCustomCharSizes( int width, int height, int xspace, int yspace); PARAMETERS width An integer of the width of each character in pixels. height An integer of the height of each character in pixels. xspace An integer of the space between each character horizontally in pixels. yspace An integer