void glPutChar(char ch, char *ptr, int *cnt,
glPutCharInst *pInst)
Provides an interface between the STDIO string-handling functions and the graphic library. The STDIO
string-formatting function will call this function, one character at a time, until the entire formatted string
has been parsed. Any portion of the bitmap character that is outside the LCD display area will be clipped.
PARAMETERS
ch is the character to be displayed on the LCD.
*ptr is not used, but is a place holder for STDIO string functions.
*cnt is not used, is a place holder for STDIO string functions.
*pInst is a font descriptor pointer.
RETURN VALUE
None.
SEE ALSO
glPrintf, glPutFont, doprnt
void glPrintf(int x, int y, fontInfo *pInfo,
char *fmt, ...);
Prints a formatted string (much like printf ) on the LCD screen. Only the character codes that exist in
the font set are printed, all others are skipped. For example, '\b', '\t', '\n' and '\r' (ASCII backspace, tab,
new line, and carriage return, respectively) will be printed if they exist in the font set, but will not have
any effect as control characters. Any portion of the bitmap character that is outside the LCD display area
will be clipped.
PARAMETERS
x is the x coordinate (column) of the top left corner of the text.
y is the y coordinate (row) of the top left corner of the text.
*pInfo is a font descriptor pointer.
*fmt is a formatted string.
... are formatted string conversion parameter(s).
EXAMPLE
glprintf(0,0, &fi12x16, "Test %d\n", count);
RETURN VALUE
None.
SEE ALSO
glXFontInit
User ’s Manual
151
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