vg4->window->size_extend()

Switch on or off size-extension for opening window.

SYNTAX

VG_BOOL vg4->window->size_extend(VG_BOOL *on)

FUNCTION PARAMETERS

on	Address to boolean: whether switch on or off, or NULL don't change

RETURN VALUE

Returns boolean: previous value

DESCRIPTION

Switch on or off size-extension for opening window. Must be called before vg4->window->open() to take effect. This value is responsible for the size of the window. If the window is opened with: - VG_WINDOW_SIZE_LOW - off: 320x200 pixels - on: 320x240 pixels - VG_WINDOW_SIZE_HIGH - off: 640x480 pixels - on: 800x600 pixels

EXAMPLE

VG_BOOL on;

/* open with 320x240 */
on = VG_TRUE;
vg4->window->size_extend(&on);
vg4->window->open(VG_WINDOW_SIZE_LOW, VG_WINDOW_SCALE_NONE);

vg4->window->close();

/* open with 640x480 */
on = VG_FALSE;
vg4->window->size_extend(&on);
vg4->window->open(VG_WINDOW_SIZE_HIGH, VG_WINDOW_SCALE_NONE);