programmatically setting value of toggle button?

[mzimmers]

Is this not possible? I've looked at the help for both SetCtrlVal() and SetCtrlAttribute(), and it doesn't look like it can be done. True?

My app has a control button to clear the displayed graph. It would be nice if the function's first action were to set the value of a toggle button to "OFF." Any other way of accomplishing this?

Thanks.

[Wolfgang]

Why do you think that ATTR_CTRL_VAL does not work? It does...

[mzimmers]

Well, then I must be forming the call incorrectly. I couldn't find an example using ATTR_CTRL_VAL, so I wrote this:

rc = SetCtrlVal (g_hmainPanel, PANEL_MAIN_TOGGLEBUTTON, ATTR_CTRL_VAL, 0);

 And I get the run-time error:

NON-FATAL RUN-TIME ERROR:   "cleargraph.c", line 30, col 84, thread id 0x00002EE8:   Too many arguments to variable argument function.

 So, if the ATTR_CTRL_VAL form of the call doesn't accept any more arguments, how do I inform the command of the state I wish to put the control into?

Thanks.

[Wolfgang · Accepted solution]

SetCtrlAttribute (,, ATTR_CTRL_VAL, 0);

or

SetCtrlVal  (, , 0);

works for me.