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Label doesn't show up as expected on CEForm

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Dr.Disrespect
Grandmaster Cheater

Reputation: 3

Joined: 17 Feb 2016
Posts: 526

Posted: Mon Jul 31, 2017 7:38 am Post subject: Label doesn't show up as expected on CEForm

Code:

local myform = createForm(false)
myform.Caption = "Please wait"
myform.BorderStyle = 'bsDialog'
myform.AutoSize = true
myform.Position = 'poScreenCenter'
myform.FormStyle = 'fsStayonTop'

local mylabel = createLabel(myform)
mylabel.Caption = "Initializing。。。"
mylabel.BorderSpacing.Around = 20

local font=mylabel.Font
font.Size = 12
font.Color = 0x0000ff
myform.show()
.....do something else
myform.destroy()

I want to create a form with a label and close the form after some other operations (I don't want to use a timer because the time consumed by those operations is uncertain), but the label never showed up. Moreover,

Code:

I did some test with this piece of code, the label only showed up after "sleep(5000)", but I want it to show before the sleep function.

So what's the problem?

Thanks.
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ParkourPenguin
I post too much

Reputation: 140

Joined: 06 Jul 2014
Posts: 4289

Posted: Mon Jul 31, 2017 9:53 am Post subject:

The thread executing the Lua code is the same thread responsible for the GUI. Either let the thread process new messages before doing the work, or do the work asynchronously.

Code:

...
myform.show()
processMessages()
-- do stuff
myform.destroy()

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Dr.Disrespect
Grandmaster Cheater

Reputation: 3

Joined: 17 Feb 2016
Posts: 526

Posted: Mon Jul 31, 2017 10:24 am Post subject:

ParkourPenguin wrote:

The thread executing the Lua code is the same thread responsible for the GUI. Either let the thread process new messages before doing the work, or do the work asynchronously.

Code:

...
myform.show()
processMessages()
-- do stuff
myform.destroy()

Thanks, Penguin. It works perfectly now.

BTW, I tried to use the thread class to fix the problem, but it didn't work. I might have done something wrong.
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ParkourPenguin
I post too much

Reputation: 140

Joined: 06 Jul 2014
Posts: 4289

Posted: Mon Jul 31, 2017 11:24 am Post subject:

Code:

...
myform.show()
createThread(function(t)
-- do stuff
t.synchronize(function(t) myform.destroy() end)
end)

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I don't know where I'm going, but I'll figure it out when I get there.

Dr.Disrespect
Grandmaster Cheater

Reputation: 3

Joined: 17 Feb 2016
Posts: 526

Posted: Tue Aug 01, 2017 10:14 am Post subject:

ParkourPenguin wrote:

Code:

...
myform.show()
createThread(function(t)
-- do stuff
t.synchronize(function(t) myform.destroy() end)
end)

Thanks again! Very Happy

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A simple example is better then ten links. Very Happy

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