gdkCursorNewFromPixmap: gdkCursorNewFromPixmap

Description

Creates a new cursor from a given pixmap and mask. Both the pixmap and mask must have a depth of 1 (i.e. each pixel has only 2 values - on or off). The standard cursor size is 16 by 16 pixels. You can create a bitmap from inline data as in the below example.

Usage

gdkCursorNewFromPixmap(source, mask, fg, bg, x, y)

Arguments

source

[GdkPixmap] the pixmap specifying the cursor.

mask

[GdkPixmap] the pixmap specifying the mask, which must be the same size as source.

fg

[GdkColor] the foreground color, used for the bits in the source which are 1. The color does not have to be allocated first.

bg

[GdkColor] the background color, used for the bits in the source which are 0. The color does not have to be allocated first.

x

[integer] the horizontal offset of the 'hotspot' of the cursor.

y

[integer] the vertical offset of the 'hotspot' of the cursor.

Value

[GdkCursor] a new GdkCursor.

Details

###### # Creating a custom cursor ######

# This data is in X bitmap format, and can be created with the 'bitmap' utility in X11 cursor1_width <- 16 cursor1_height <- 16 cursor1_bits <- c( 0x80, 0x01, 0x40, 0x02, 0x20, 0x04, 0x10, 0x08, 0x08, 0x10, 0x04, 0x20, 0x82, 0x41, 0x41, 0x82, 0x41, 0x82, 0x82, 0x41, 0x04, 0x20, 0x08, 0x10, 0x10, 0x08, 0x20, 0x04, 0x40, 0x02, 0x80, 0x01) cursor1mask_bits <- c( 0x80, 0x01, 0xc0, 0x03, 0x60, 0x06, 0x30, 0x0c, 0x18, 0x18, 0x8c, 0x31, 0xc6, 0x63, 0x63, 0xc6, 0x63, 0xc6, 0xc6, 0x63, 0x8c, 0x31, 0x18, 0x18, 0x30, 0x0c, 0x60, 0x06, 0xc0, 0x03, 0x80, 0x01) fg <- c(65535, 0, 0) # Red. bg <- c(0, 0, 65535) # Blue. source <- gdkBitmapCreateFromData(NULL, cursor1_bits, cursor1_width, cursor1_height) mask <- gdkBitmapCreateFromData(NULL, cursor1mask_bits, cursor1_width, cursor1_height) cursor <- gdkCursorNewFromPixmap(source, mask, fg, bg, 8, 8) widget[["window"]]$setCursor(cursor)