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- Tk_GetOption(3) Tk Library Procedures
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- _________________________________________________________________
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- NAME
- Tk_GetOption - retrieve an option from the option database
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- SYNOPSIS
- #include <tk.h>
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- Tk_Uid
- Tk_GetOption(_t_k_w_i_n, _n_a_m_e, _c_l_a_s_s)
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- ARGUMENTS
- Tk_Window _t_k_w_i_n (in) Token for window.
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- char *_n_a_m_e (in) Name of desired option.
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- char *_c_l_a_s_s (in) Class of desired option.
- Null means there is no class
- for this option; do lookup
- based on name only.
- _________________________________________________________________
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- DESCRIPTION
- This procedure is invoked to retrieve an option from the
- database associated with _t_k_w_i_n's main window. If there is
- an option for _t_k_w_i_n that matches the given _n_a_m_e or _c_l_a_s_s,
- then it is returned in the form of a Tk_Uid. If multiple
- options match _n_a_m_e and _c_l_a_s_s, then the highest-priority one
- is returned. If no option matches, then NULL is returned.
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- Tk_GetOption caches options related to _t_k_w_i_n so that succes-
- sive calls for the same _t_k_w_i_n will execute much more quickly
- than successive calls for different windows.
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- KEYWORDS
- class, name, option, retrieve
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- Tk 1
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