Delphi 10.4 Sydney is a specific version of Delphi released in May 2020.
Questions tagged [delphi-10.4-sydney]
363 questions
2
votes
1 answer
How to Link object file in Delphi over Linux Platform?
I am using object file in my Delphi application over Linux Platform and linked them as shown in below piece of code and getting error:
"E2065 Unsatisfied forward or external declaration: 'add'"
Delphi:
program ITP_Test;
{$APPTYPE…
Anna
- 119
- 9
2
votes
0 answers
Windows Preview Handler using FMX drawing functions?
I have created an FMX graphics application that draws various graphics from a custom binary vector file format. I'd now like to create a Windows Preview Handler to support that file format. I have already created a basic VCL preview handler based on…
XylemFlow
- 963
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2
votes
1 answer
How to pass several files at once to my registered application?
In a Delphi 10.4.2 win-32 VCL Application associated with graphic file formats in Windows 10, I get parameter files selected in Windows File Explorer. Here I watch the files passed to my app right after…
user1580348
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2
votes
1 answer
How to unregister a File Format for my application?
In a Delphi 10.4.2 win-32 VCL Application in Windows 10, I register the .ICO file format for my graphics application by using DSiWin32.DSiRegisterUserFileAssoc:
DSiRegisterUserFileAssoc(
'.ico', //…
user1580348
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- 105
2
votes
1 answer
State of the art way to register/unregister a file type with my own application for the current user in Windows10?
I have found several methods to register a file type with my own application (double-clicking that file type in Windows Explorer looads that file in my application). Several are very old and seem to be deprecated, others are unclear and lack…
user1580348
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- 105
2
votes
1 answer
Converting a hex string representation of a widechar codepoint to a widechar in Delphi
I am having trouble converting text within an edit box to a WideChar. This is being used in code for printing emoji characters.
If I manually set the WideChar values like the following it works
Emoji[1] := WideChar($D83D);
Emoji[2] :=…
Some1Else
- 715
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- 26
2
votes
1 answer
Delphi MacOS project gets Error "Unauthorized to record audio"
A new Delphi 10.4.2 macOS project attempts to record microphone audio but gets this error message in a pop up window:
"Unauthorized to record audio."
How does a Delphi app get authorization to record audio?
I started with blank project so...
Project…
Mike at Bookup
- 1,211
- 14
- 32
2
votes
1 answer
Delphi objects: shortcut for TObjectList iteration
I'm starting to learn and actively use OOP in my projects. I've found that constructions like LDevices.Devices[i] look very cumbersome and make code hard to read.
So there's my question: is there any way to be able to make a shortcut for a field to…
Alexander
- 388
- 1
- 12
2
votes
0 answers
Why do I get Text = '' stored in my .dfm files? Empty string, as the default, is not supposed to be stored
What is the reason for this surprising behaviour, that seems to have started after I upgraded Delphi from XE2 to 10.4.2, namely that empty string property values get stored to the .DFM file?
Empty string is supposed to be a built-in automatic…
Matthias B
- 404
- 4
- 11
2
votes
1 answer
Add an included TColorListBox.Style color group at run-time without overwriting any existing custom colors?
I have a TColorListBox in a Delphi 10.4.2 32-bit VCL Application:
object ColorListBox1: TColorListBox
Left = 0
Top = 232
Width = 498
Height = 224
Align = alBottom
Selected = clScrollBar
Style = [cbCustomColors]
ItemHeight = 20
…
user1580348
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- 43
- 105
2
votes
1 answer
TLabel.AutoSize not working when Label.Align = alTop
In a Delphi 10.4.2 32-bit Delphi VCL Application, I have a TLabel set on top of a TCard:
object lblColorTransparencyInfo: TLabel
AlignWithMargins = True
Left = 5
Top = 37
Width = 156
Height = 20
Margins.Left = 5
Margins.Top = 5
…
user1580348
- 5,721
- 4
- 43
- 105
2
votes
2 answers
TRestRequest.Execute exits thread when responses code is 300 or higher
I need to check specific status codes from a RestResponse however the RestRequest.Execute seems to generate a EHTTPProtocolException when the status codes are not 200.
I did take a look at the documentation and it states that The request execution…
Adriaan
- 806
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- 24
2
votes
3 answers
Right-click doesn't update ItemIndex in TControlList
I've added a TPopupMenu to a TControlList, on right-click the ItemIndex isn't updated to reflect the item clicked on. Is there a way to make a right-click respond in a similar way to a left-click?
This would be nice so that the user right-clicks on…
Alister
- 6,527
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2
votes
2 answers
Accessing some Outlook OLE object properties fails in a Win10/Exchange Online environment
I have some older code connecting to Outlook through OLE that no longer works running on Win10 where Outlook is set up to connect to Exchange online:
It raises an exception with message (Dutch) "De bewerking is afgebroken", probably translated as…
Jan Doggen
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- 144
2
votes
1 answer
What is the difference between the -i and -u parameters to the dcc command-line compilers?
What exactly is the -i option of the Delphi dcc command-line compilers (dcc32.exe, dcc64.exe, dcclinux64.exe and others)? As opposed to -u? Help just states this briefly (and Embarcadero documentation does not seem to expand upon the subject):
…
Matthias B
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