updown limits

[vincentg]

In an updown, I just want to set the minimum value. But, because I can only set a minimum value after i set a maximum value, i tried to set the maximum value to "Default". The updown acts really strange when it's maximum is set to Default. The maximum value becomes 1 and the minimum -1 (minimum is set to 1), and if i click on the upper arrow (on the updown) it decreases and when i click on the down arrow it increases. When i try to set the maximum value to a high value (like 40000) It acts the same except for the minimum value, which is now much lower value (-25.536 when max is set to 40000).

What do I do wrong, or does there exists any other way to just set the minimum and not the maximum to an updown?

Vincent

[martin]

In an updown, I just want to set the minimum value. But, because I can only set a minimum value after i set a maximum value, i tried to set the maximum value to "Default". The updown acts really strange when it's maximum is set to Default. The maximum value becomes 1 and the minimum -1 (minimum is set to 1), and if i click on the upper arrow (on the updown) it decreases and when i click on the down arrow it increases. When i try to set the maximum value to a high value (like 40000) It acts the same except for the minimum value, which is now much lower value (-25.536 when max is set to 40000).

What do I do wrong, or does there exists any other way to just set the minimum and not the maximum to an updown?

Vincent

You cannot set higher than 0x7fff, or lower than -0x7fff and the difference between the min and max cannot be more than 0x7fff

0x7fff = 32767 so your choice of 40000 was a bit unlucky.

see this

[vincentg]

hmm.. is there any other way to set just a minimum?

[martin]

hmm.. is there any other way to set just a minimum?

Presumably you don't know what the maximum value is otherwise you could simply set the minimum using GUICtrlSetLimit($UpDown, $UDMax,$UDMin).

So here is the way to find the max and min values for an updown control called $Updown1

Const $UDM_GETRANGE = (0x400 + 102)

$range = GUICtrlSendMsg($Updown1,$UDM_GETRANGE,0,0 )

$UDMax = BitAnd($range,0xffff)

$UDMin = BitAND(Bitrotate($rr,16,"D"),0xffff)

Edit:simplified the calcs a bit

Edited August 14, 2007 by martin