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OS/2 Shareware BBS: 10 Tools
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BUTTON.CLS
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1990-01-15
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/*
** (C) Copyright 1989, 1990
** Micro Data Base Systems Inc.
** Lafayette, Indiana
*/
/* Class Button is the class of all button
type control windows. */
subclass(Control,
#Button,
nil,
true, true, false);$
/* Answer the window class name string. */
method Button::windowClassNameOf(self)
{
return WC_BUTTON;
}
/* Simulate a button press. */
method Button::press(self)
{
sendMessage(self, BM_CLICK, false, 0);
return nil;
}
/* Simulate a button release. */
method Button::release(self)
{
sendMessage(self, BM_CLICK, true, 0);
return nil;
}
/* Answer whether or not a button is selected. */
method Button::isChecked(self)
{
return sendMessage(self, BM_QUERYCHECK, 0, 0) == 1;
}
/* Answer the 0 based index into a group of radio buttons to the button
with the check. */
method Button::checkIndexOf(self)
{
return asInteger(sendMessage(self, BM_QUERYCHECKINDEX, 0, 0));
}
/* Answer 'true' if the button is highlited. */
method Button::isHilited(self)
{
return sendMessage(self, BM_QUERYHILITE, 0, 0) != 0;
}
/* Place the checkmark next to a button. Answer with the previous
check state of the button. */
method Button::check(self)
{
return sendMessage(self, BM_SETCHECK, 1, 0) == 1;
}
/* Remove the checkmark from a button. Answer with the previous
check state of the button. */
method Button::unCheck(self)
{
return sendMessage(self, BM_SETCHECK, false, 0) == 1;
}
/* Make the push button a default push putton. */
method Button::setDefault(self)
{
return sendMessage(self, BM_SETDEFAULT, true, 0) != 0;
}
/* Make the push button a normal push putton. */
method Button::resetDefault(self)
{
return sendMessage(self, BM_SETDEFAULT, false, 0) != 0;
}
/* Turn on the button hilite. Answer the previous button hilite state. */
method Button::hilite(self)
{
return sendMessage(self, BM_SETHILITE, true, 0) != 0;
}
/* Turn off the button hilite. */
method Button::unHilite(self)
{
return sendMessage(self, BM_SETHILITE, false, 0) != 0;
}
/* Toggle the checked status of the button. Answer the prior state. */
method Button::toggle(self)
{
if(isChecked(self))
return(unCheck(self));
else
return(check(self));
}