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Autodocs
 Libraries:
 layers.library
  BeginUpdate
  BehindLayer
  CreateBehindHookLayer
  CreateBehindLayer
  CreateUpfrontHookLayer
  CreateUpfrontLayer
  DeleteLayer
  DisposeLayerInfo
  DoHookClipRects
  EndUpdate
  FattenLayerInfo
  InitLayers
  InstallClipRegion
  InstallLayerHook
  InstallLayerInfoHook
  LockLayer
  LockLayerInfo
  LockLayers
  MoveLayer
  MoveLayerInFrontOf
  MoveSizeLayer
  NewLayerInfo
  ScrollLayer
  SizeLayer
  SwapBitsRastPortClipRect
  ThinLayerInfo
  UnlockLayer
  UnlockLayerInfo
  UnlockLayers
  UpfrontLayer
  WhichLayer
Include
GuruMeditation
Docs » Autodocs » layers.library » LockLayerInfo

NAME

	LockLayerInfo -- Lock the LayerInfo structure.

SYNOPSIS

	LockLayerInfo( li )
a0
void LockLayerInfo( struct Layer_Info *);

FUNCTION

	Before doing an operation that requires the LayerInfo
structure, make sure that no other task is also using the
LayerInfo structure. LockLayerInfo() returns when the
LayerInfo belongs to this task. There should be
an UnlockLayerInfo for every LockLayerInfo.
Note: All layer routines presently LockLayerInfo() when they
start up and UnlockLayerInfo() as they exit. Programmers
will need to use these Lock/Unlock routines if they wish
to do something with the LayerStructure that is not
supported by the layer library.

INPUTS

	li - pointer to Layer_Info structure

BUGS

SEE ALSO

UnlockLayerInfo(), <graphics/layers.h>

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