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

CreateBehindLayer

Create a new layer behind all existing layers.

Declaration

Source position: layers.pas line 157

function CreateBehindLayer(

Li: PLayer_Info;

Bm: PBitMap;

X0: LongInt;

Y0: LongInt;

X1: LongInt;

Y1: LongInt;

Flags: LongInt;

Bm2: PBitMap

):PLayer;

Arguments

`Li`		pointer to LayerInfo structure
`Bm`		pointer to common BitMap used by all Layers
`X0`		left corner of layer
`Y0`		upper corner of layer
`X1`		right corner of layer
`Y1`		lower corner of layer
`Flags`		various types of layers supported as bit sets. Flags: LAYER*
`Bm2`		pointer to optional Super BitMap

Function result

pointer to Layer structure if successful nil if not successful

Description

Create a new Layer of position and size (x0,y0)->(x1,y1) Make this layer of type found in flags. If SuperBitMap, use bm2 as pointer to real SuperBitMap, and copy contents of Superbitmap into display layer. If this layer is a backdrop layer then place it behind all other layers including other backdrop layers. If this is not a backdrop layer then place it behind all nonbackdrop layers.

Attention

When using bm2 SuperBitmap, you should also set LAYERSMART flag.