ASCII code of CTRL button

Discorez

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Somebody can to tell, what ASCII code of CTRL key for emulate pressing with Hardware lib?

I need to select all contents the TextBox -
B4X: 
   tbValue.Focus
   tbValue.SelectionStart = 0
   tbValue.SelectionStart = StrLength(tbValue.Text)
It dont work

If to emulate to press a Ctrl+A with Hardware lib, that needs to be made so:
B4X: 
        tbValue.Focus 'TextBox
   HW.KeyDown(17)
   HW.KeyPress(Asc("A")) 
   HW.KeyUp(17)
17 - is decimal value from hex value 0x11
VK_CONTROL (0x11)
CTRL key
Click to expand...
URL from help - click
but it dont work too...
:sign0085: please
 

Discorez

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klaus, it dont work - only moves the cursor to last position of a textbox
 

klaus

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I ask my question once again: What do you want to do ?
Can you post your sbp file ?

B4X: 
tbValue.SelectionStart = 0
tbValue.SelectionLength = StrLength(tbValue.Text)
Selects the whole text, but unfortunately the text is not highlighted.

In the attached example you can see that with above code the text is selected.

Best regards.
 

Attachments

  • TextBoxGotFocus.sbp
    1.4 KB · Views: 239

Discorez

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In the attached example
Click to expand...
It work.
Sorry, I find error in my code... It is very shame to me... :signOops:

But there is other question - how to emulate to press a Ctrl-button on keyboard, with Hardware lib?
HardWare.KeyDown(???)
 
Last edited:

klaus

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You use two times tbValue.SelectionStart = in your code!
With your code you set in the first line the start at 0
and in the 2nd line you set the start at the end, the length remains 0.

I use
tbValue.SelectionStart = in the first line
tbValue.SelectionLenght = in the 2nd line

Best regards.
 

Discorez

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Klaus, thanks, but I above wrote that code
B4X: 
    tbValue.Focus
    HW.KeyDown(17)
    HW.KeyPress(Asc("A")) 
    HW.KeyUp(17)
not work on my device. Why? I somewhere again was mistaken?
 

klaus

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On my device, htc Touch HD, it doesn't work too.
This means that the TextBox Control doesn't support Ctrl A.
If you try to write Ctrl A into a TextBox with the standard keybord on the desktop or with the virtual keyboard on the device nothing happens.
Ctrl X, Ctrl Y, Ctrl V work.

Best regards.
 
Last edited:

Discorez

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Longtime User
If you try to write Ctrl A into a TextBox with the standard keybord ..... nothing happens.
Ctrl X, Ctrl Y, Ctrl V work.
Click to expand...
Hmm... The very strange restriction...

Klaus, thank for help!

:sign0074:
 
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