OutputProc

Overview

Group

Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
user-defined
Header File
winuser.h
Unicode
No
Platform Notes
GRAYSTRINGPROC

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.