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Zoran Bonuš
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Have you considered https://winsoft.sk/acpusb.htm (commercial)?
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You may try the TNumberBox, available in the newer versions of Delphi. https://docwiki.embarcadero.com/RADStudio/Sydney/en/Using_VCL_TNumberBox_Control
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Have you considered creating LXC containers, instead of VMs? Should be less resource-hungry, easier to setup...and only slightly less secure (if set as not priviliged, which is the default).
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How about testing .Visible in OnActivate? Or starting a timer in OnShow and execute your code few ms later, when the form is already visible.
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Is it possible to send text from android to a windows laptop and back over wifi?
Zoran Bonuš replied to JohnLM's topic in Cross-platform
How about app tehtering? Ready to use components, multi-platform, ip/bluetooth app to app communication https://docwiki.embarcadero.com/RADStudio/Alexandria/en/Using_App_Tethering -
Store a large number of images in the filesystem or in a DB?
Zoran Bonuš replied to RaelB's topic in Databases
If you already use database of other data, I would go with the images in DB. Another form.of storage means also another thing to take care of backups, accessibility, security, etc. -
Or you can use other 3rd party db components (commercial like unidac) with Delphi Pro.
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Just for a reference, a recent blog post on the topic and a shared library by @Darian Miller https://www.ideasawakened.com/post/use-createprocess-and-capture-the-output-in-windows
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For a similar task I use this solution (the updated version), works fine by me: https://stackoverflow.com/questions/9119999/getting-output-from-a-shell-dos-app-into-a-delphi-app
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Right, but you can convert boolean to integer (1/0) and then SUM works like COUNTIF. Conversion can be implicit or explicit, or using case/iif constructs... whatever MariaDB supports.
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Send message frmo VCL app to another machine in lan
Zoran Bonuš replied to mikak's topic in General Help
If you already use a DB that supports events/notifications (Firebird, Interbase, Oracle, MSSQL...?), a FDEventAlerter (or similar) may be sufficent to notify clients (instead of polling). https://docwiki.embarcadero.com/RADStudio/Sydney/en/Database_Alerts_(FireDAC) -
Interbase 2020 update 3 - high firedac network traffic
Zoran Bonuš replied to Anto90's topic in Databases
Not exactly addressing the issue, but do you use firedac connection pooling? https://docwiki.embarcadero.com/RADStudio/Sydney/en/Multithreading_(FireDAC) May help or circumvalent your problem Also try to use read-only transactions and "read committed" isolation mode whenever possible. Also check the ibclient dll version. -
For similar reasons, I use an ordinary form with a TfrxPreview component on it. https://www.fast-report.com/documentation/ProgMan/index.html?creating_a_custom_preview_window.htm
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Or you may try TButtonGroup https://docwiki.embarcadero.com/Libraries/Sydney/en/Vcl.ButtonGroup.TButtonGroup
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Should be fixed in 11.2 (I haven't tested yet) https://quality.embarcadero.com/browse/RSP-37631