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GpiCharStringAt (1.2)
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#define INCL_GPIPRIMITIVES
LONG GpiCharStringAt(hps, pptlStart, cchString, pchString)
HPS hps; /* presentation-space handle */
PPOINTL pptlStart; /* address of structure for starting position */
LONG cchString; /* number of characters in string */
PCH pchString; /* address of string to draw */
The GpiCharStringAt function draws a character string starting at the
specified position. After the function draws the string, it sets the current
position to the end of the character string.
Parameter Description
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hps Identifies the presentation space.
pptlStart Points to the POINTL structure that contains the starting
position in world coordinates.
cchString Specifies the number of characters pointed to by pchString.
pchString Points to the character string to be drawn.
Return Value
The return value is GPI_OK or GPI_HITS if the function is successful (it is
GPI_HITS if the detectable attribute is set for the presentation space and a
correlation hit occurs). The return value is GPI_ERROR if an error occurs.
Errors
Use the WinGetLastError function to retrieve the error value, which may be
one of the following:
PMERR_FONT_AND_MODE_MISMATCH
PMERR_INV_COORDINATE
PMERR_INV_HPS
PMERR_INV_LENGTH_OR_COUNT
PMERR_PS_BUSY
Example
The example uses the GpiCharStringAt function to draw the string "Hello"
starting at the position (100,100). It then uses the GpiMove and
GpiCharString functions to draw the same string at exactly the same
position.
HPS hps;
POINTL ptlStart;
ptlStart.x = 100L;
ptlStart.y = 100L;
/* Draw the string "Hello" at (100, 100). */
GpiCharStringAt(hps, &ptlStart, 5, "Hello");
/* These two calls are identical to the one above. */
GpiMove(hps, &ptlStart);
GpiCharString(hps, 5L, "Hello");
See Also
GpiCharString, GpiMove, POINTL
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