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How can I play 20 wma files on delphi using Tmediaplayer, one after another in a continues loop until the program is closed ? I already tried using a timer for each file , but I keep failing. I have 20 songs that I'd like to play in the background while the rest of the program runs.
Put the filenames into a list. Set the TMediaPlayer.FileName property to the first filename in the list, set the TMediaPlayer.Notify property to true, and call TMediaPlayer.Play(). When the TMediaPlayer.OnNotify event signals playback has finished, you can assign the next filename in the list to TMediaPlayer.FileName, reset TMediaPlayer.Notify to true, and call TMediaPlayer.Play(). Repeat for each filename in the list. One you have played the last filename, start over with the first filename.
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So im really new to this, and I dont know why it isnt working
Ive googled all around the place, all I can find is that you should put an end somewhere but I dont know where.
Power = peripheral.wrap("ic2:oldmfsu")
mon = peripheral.wrap("monitor_0")
local maxPower = 0
local curPower = 0
local perPower = 0
monX.monY = mon.getsize()
function checkpower()
etc
I expect it to count the number of energy that is stored.
The error message tells you that mon is nil. That means that peripheral.wrap("monitor_0") returned nil instead of the expected table.
Indexing a nil value is not allowed because it doesn't make sense. Hence Lua complains about your attempt.
https://www.computercraft.info/wiki/Peripheral.wrap
Function peripheral.wrap
Returns a table containing functions pointing to the peripheral's
methods, which can then be called as if using peripheral.call(side,
method). If no peripheral is found at the specified side, returns
nil instead.
So check wether mon is nil befor you index it and maybe print an error message else.
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My cxBarEditItem1 has properties : combobox.
However when I begin to write :
cxBarEditItem1.Properties.Items.Add ...
Delphi shows me it's an error. It seems 'items' do not exist.
What am I doing wrong ? How can I fill it ?
The compiler doesn't know that cxBarEditItem1.Properties refers to a ComboBox at runtime. You have to cast to tell it:
Assert(cxBarEditItem1.Properties is TcxComboBoxProperties);
TcxComboBoxProperties(cxBarEditItem1.Properties).Items.Add('Hello');
I don't have the DevExpress Expressbar controls... But I have downloaded the help file for the components. I can recommend the help, it's very useful.
From what I can see, you really want to put a TcxBarCombo on your bar, which does have an items property.
I think you have dropped a non-ribbon style Combo on to your ribbon, which may be a separate component on your form... Maybe try clicking on the combo and seeing what the component name is in the object inspector, then use that name to add items to the control.
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hy
im making an app to help students study better but im having trouble. the app let you make notes between other things,but I need a code that can recognize specific characters in a text for example the user writes in a note "Dolphins : are cetacean mammals closely..." i need the app to recognize the character : and also the part thats on the left it needs to be save to use later, as a variable and the part of the right also but as a different variable so I can use them later.
if you can get me the code for that it be great but if possible i preferred a tutorial :)
(the app is for iPhone im using Xcode 5)
Something like:
NSArray *stringArray = [yourNSString componentsSeparatedByString:#":"];
NSString *leftString = stringArray[0];
NSString *rightString = stringArray[1];
EDIT: Just make sure string has the ":" character.
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I'm new in delphi and i thought it might be safer to swap object names in loop instead of copying whole block for each object. So I need to use variable name as some objects name.
Here is an example of what i tried and what i am trying to do.
Var
YazGrid: TStringGrid;
I defined a variable for grid name as above and i am trying to use like this:
Some Loop
begin
if a_variable>=10 then
YazGrid:=form1.StringGrid1
else
YazGrid:=form1.StringGrid2;
YazGrid.Cells[1,i] := 'SomeText';
End;
As the result- it comes out with the "Access Violation" error. How should i do this?
Thanks in advance.
Everything looks right in your code.
Make sure that variable "i" in bound. Anyway, even if "i" out-of-bound, this shound't raise Access Violation.
Tested with Delphi XE2 and XE4.
I suppose that error occure in code that not showed in your sample.
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x = {"utf8"=>"✓",
"authenticity_token"=>"xxxxxxxxxxxxx=",
"file"=>#>,
"unit_id"=>"00001"}
I have ruby data structure like this and um trying to get the value of #original_filename field
I tried something like this
x["#original_filename"]
and
x[:original_filename]
But both has thrown me an error . How to access that specified element value?
looks like you're trying to upload a file; from your tiny screenshot maybe you're referring to params[:file].original_filename?
The parameter ["file"] is a ActionDispatch::Http::UploadedFile, which has the original_filename member variable, as you can see in the params displayed in your image or here:
http://api.rubyonrails.org/classes/ActionDispatch/Http/UploadedFile.html
So, the way to get this value would be x["file"].original_filename