video_switch

video_switch (var res,var depth,var window)

Switches the screen to the resolution given by res, to the color depth given by depth and to fullscreen (window = 1) and window mode (window = 2). 0 means no change for either parameter. The video_mode, video_depth, video_screen, and screen_size variables are automatically set to their new values.

Parameters:

res - video mode number that determines the screen resolution.

0	no change
1	320x200 (legacy)
2	320x240 (legacy)
3	320x400 (legacy)
4	400x300 (legacy)
5	512x384 (legacy)
6	640x480 (flythrough default mode)
7	800x600
8	1024x768
9	1280x1024
10	1400x1050
11	1600x1200
12	1920x1200

depth - color depth

0	no change
16	16 bit / high color
32	32 bit / true color

window - fullscreen or window mode

0	no change
1	fullscreen
2	window

Returns:

0 if the video mode can't be set, otherwise the number of the new mode.

Modifies:

video_mode	new resolution
video_depth	new color depth
video_screen	fullscreen or window mode
screen_size	height and width in pixel

Speed:

Slow

Remarks:

The video resolution can not be changed immediately in an entity or panel event. Use a wait(1) before changing the resolution in an event.
Fullscreen video modes below 6 (640x480) are legacy modes and not supported by most video cards. Fullscreen modes 6, 7, and 8 are working almost everywhere.
Most video cards always run in 32 bit / True Color mode regardeless of the depth setting.
A window - including title bar and border - can not be bigger than the desktop. Thus setting a 1024x768 window on a 1024x768 desktop will always fail unless you remove border and title bar. For setting arbitrary resolutions in window mode, use video_set.
Switching between fullscreen and window mode and at the same time to a different resolution might require two steps when the current or desired resolution is the same as the desktop resolution. Imagine you're at 1024x768 fullscreen and your desktop is also at 1024x786, and you want to switch to 600x800 window mode. This requires two steps: first, switching from fullscreen to window mode, and second, setting the resolution at 800x600. The first step fails because a 1024x758 window plus title bar is bigger than the desktop. Thus video_switch returns 0. You need to switch to 600x800 fullscreen first, and then you can switch to window mode:

video_set(800,600,0,0);
video_set(0,0,0,2);

Example:

if(video_switch(7,0,0) == 0)
{
   video_switch(6,0,0);
}