mirror of
https://github.com/ruby-opencv/ruby-opencv
synced 2023-03-27 23:22:12 -04:00
68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
/************************************************************
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gui.cpp -
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$Author: lsxi $
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Copyright (C) 2005-2006 Masakazu Yonekura
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************************************************************/
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#include "gui.h"
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/*
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* Document-module: OpenCV::GUI
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*
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* OpenCV simple GUI interface. Provides Window, Trackbar.
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* This GUI work on GTK or Microsoft Windows native GUI.
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*/
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__NAMESPACE_BEGIN_OPENCV
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__NAMESPACE_BEGIN_GUI
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VALUE rb_module;
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VALUE
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rb_module_GUI()
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{
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return rb_module;
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}
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void
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define_ruby_module()
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{
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if (rb_module)
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return;
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/*
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* opencv = rb_define_module("OpenCV");
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*
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* note: this comment is used by rdoc.
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*/
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VALUE opencv = rb_module_opencv();
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rb_module = rb_define_module_under(opencv, "GUI");
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rb_define_singleton_method(rb_module, "wait_key", RUBY_METHOD_FUNC(rb_wait_key), -1);
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}
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/*
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* call-seq:
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* wait_key(<i>[delay]</i>) -> int or nil
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*
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* Waits for a pressed key each GUI wedget.
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* Return the code of the pressed key or nil if no key were pressed until the specified timeout has elapsed.
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* <i>delay</i> should be Fixnum. Wait <i>delay</i> millisecond.
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*/
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VALUE
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rb_wait_key(int argc, VALUE *argv, VALUE self)
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{
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VALUE delay;
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rb_scan_args(argc, argv, "01", &delay);
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int keycode = 0;
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try {
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keycode = cvWaitKey(IF_INT(delay, 0));
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}
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catch (cv::Exception& e) {
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raise_cverror(e);
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}
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return (keycode < 0) ? Qnil : INT2NUM(keycode);
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}
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__NAMESPACE_END_GUI
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__NAMESPACE_END_OPENCV
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