Unit 'agraphics' Package
[Overview][Constants][Types][Procedures and functions][Variables][Index] [#os4units]

EraseRect

Fill a defined rectangular area using the current BackFill hook.

Declaration

Source position: agraphics.pas line 2430

procedure EraseRect(

  Rp: PRastPort;

  XMin: LongInt;

  YMin: LongInt;

  XMax: LongInt;

  YMax: LongInt

);

Arguments

Rp

  

A pointer to a RastPort structure

XMin

  

X coordinate of the upper left corner of the region to fill.

YMin

  

Y coordinate of the upper left corner of the region to fill.

XMax

  

X coordinate of the lower right corner of the region to fill.

YMax

  

Y coordinate of the lower right corner of the region to fill.

Description

Fill the rectangular region specified by the parameters with the BackFill hook. If non-layered, the rectangular region specified by the parameters is cleared. If layered the ^.BackFill Hook is used. The following relation must be true: (xmax >= xmin) and (ymax >= ymin)


Documentation generated on: 2021-07-30