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Programming With the Appearance Manager

ThemeButtonDrawInfo

A ThemeButtonDrawInfo structure describes the changeable visual characteristics of a button. Your application can use a ThemeButtonDrawInfo structure, together with a constant of type ThemeButtonKind , to fully describe the visual characteristics of a given button type at a given point in time. See Theme Button Kind Constants for a description of ThemeButtonKind values.

Your application uses the ThemeButtonDrawInfo structure in the function DrawThemeButton to draw a theme-compliant button and in the functions GetThemeButtonRegion and GetThemeButtonContentBounds to obtain information about a specific button type. The ThemeButtonDrawInfo structure is available with Appearance Manager 1.1 and later.

struct ThemeButtonDrawInfo {
    ThemeDrawState          state;
    ThemeButtonValue        value;
    ThemeButtonAdornment    adornment;
};
typedef struct ThemeButtonDrawInfo ThemeButtonDrawInfo;
typedef ThemeButtonDrawInfo *ThemeButtonDrawInfoPtr;

Field descriptions

state
A value of type ThemeDrawState , specifying the state of the button, such as whether it is active, inactive, or pressed. See Theme Draw State Constants for descriptions of possible values.
value
A value of type ThemeButtonValue , specifying the value of the button, such as, in the case of checkbox, whether it is drawn as on, off, or mixed. See Theme Button Value Constants for descriptions of possible values.
adornment
A value of type ThemeButtonAdornment , specifying any supplementary characteristics of the button, such as whether it is drawn with a focus ring. See Theme Button Adornment Constants for descriptions of possible values.
© 1999 Apple Computer, Inc. – (Last Updated 29 April 99)