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CK_AdjustmentLayer

CK_Object
   |
   +----CK_Component
           |
           +----CK_Manager
                   |
                   +----CK_AdjustmentLayer

The CK_AdjustmentLayer is a manager component that can have only one child. The adjustment layer takes the width and height of its child. It first draws its child, and then applies a pixel-modifying effect to the result. Currently, the choices are to either lighten or darken the brightness of the pixels.

See Example 31 and 33.

Properties

• CP_AdjustmentType - Adjustment types can be ADJUST_NONE, ADJUST_LIGHTEN, or ADJUST_DARKEN.
• CP_AdjustmentVal - For lightening and darkening effects, this represents the percentage of lightening or darkening.
• CP_CallbackArg1 - An integer value to be passed to the screen's componentCB method when an event occurs in this component.
• CP_CallbackArg2 - Same as CP_CallbackArg1.
• CP_Cursor - The cursor to be displayed when the mouse pointer is over the component. (v1.02)
• CP_Height - The height is automatically set to that of the child component.
• CP_RelativeX - Only used when this component is a child of a CK_BBoard or CK_ClipWindow. It is the X position of the component relative to the parent's left edge.
• CP_RelativeY - Only used when this component is a child of a CK_BBoard or CK_ClipWindow. It is the Y position of the component relative to the parent's top edge.
• CP_Width - The width is automatically set to that of the child component.
• CP_X - The absolute X-position, in screen coordinates, of the component. This can only be set for the top-level component of a screen or a dialog.
• CP_Y - The absolute Y-position, in screen coordinates, of the component. This can only be set for the top-level component of a screen or a dialog.
• CP_ZOrder - Used when this component is a child of a CK_BBoard. The CK_BBoard uses this value to determine the order in which children are drawn. Smaller Z-order values are drawn before larger Z-order values.

Example of creating an adjustment layer:

CK_AdjustmentLayer *adjLayer = (CK_AdjustmentLayer *) CreateComponent(CT_AdjustmentLayer, 0,
    CT_AdjustmentType, ADJUST_LIGHTEN,
    CT_AdjustmentVal, 50,
    0);