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FUNCTION IFMOUSEHD() *new*
Short:
------
IFMOUSEHD() Checks if mouse held down,evals codeblock while it is
Returns:
--------
NIL
Syntax:
-------
IFMOUSEHD(bBlock, [oTbrowse])
Description:
------------
You'll often want to hold the left mouse button down on a hot object
in order to cause an action to repeat rapidly over and over. An
example would be on an up or down arrow that caused a tbrowse object
to go up or down. Rather than go click-release-click-release-click..etc,
you prefer to just hold the mouse down.
If you detect the mouse has been pressed and you then want to check
if its held down and perform an action repetetively while it is,
you can use this function.
<bBlock> is the code block to be evaluated continuously while the mouse
is held down. (there is a .01 second delay between iterations).
[oTbrowse] is an optional Tbrowse object that you wish to be refreshed
during the evaluation of the block. (otherwise, you could hold the mouse
button down continuously and not se anything happen. You could have
your codeblock refresh the Tbrowse, of course. Its just easier this
way.
Examples:
---------
// this code is taken from SMALLS(), our lookup table popup
case ISMOUSEAT(nMouseR, nMouseC, nBot+2, nLeft, nBot+2, nLeft+2)
oTb:up()
IFMOUSEHD({||oTb:up()},oTb)
case ISMOUSEAT(nMouseR, nMouseC, nBot+2, nLeft+3, nBot+2, nLeft+5)
oTb:down()
IFMOUSEHD({||oTb:down()},oTb)
Source:
-------
S_MOOSE.PRG
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