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OutputProc info  Overview  Group

The OutputProc function is an application-defined callback function that draws a string as a result of a call to the GrayString function.

BOOL CALLBACK OutputProc(

    HDC hdc,

// handle to device context

    LPARAM lpData,

// pointer to string to be drawn

    int cchData 

// length of string to be drawn

   );

Parameters

hdc
Identifies a device context with a bitmap of at least the width and height specified by the nWidth and nHeight parameters passed to GrayString.
lpData
Points to the string to be drawn.
cchData
Specifies the length, in characters, of the string.

Return Values

If it succeeds, the callback function should return TRUE.

If the function fails, the return value is FALSE.

Remarks

The callback function must draw an image relative to the coordinates (0,0).

OutputProc is a placeholder for the application-defined function name.

See Also

GrayString 

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