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I also ran a couple of tests and it made no diff; Zero, GetDesktopHandle, GetActiveWindow, Application.Handle and Mainform.handle all appeared as normal.
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TFDQuery Async execution aborts with out of memory
Wloochacz replied to Clément's topic in Databases
OK, great, but... In this kind of application, fetching all data from the server and all BLOBs is definitely not a good solution... When I write a query, I don't always want to fetch all the data from the server - the first 100 records are enough for me (sure, you can move such a constant to the application configuration), and the rest on demand. Therefore, it might be better to set up FDQuery this way: Result.FetchOptions.Mode := fmOnDemand; Result.FetchOptions.Items :=[]; Result.FetchOptions.Cache :=[]; Besides, if I write such a query and I get an "out of memory" error message I really won't know what went wrong? Where did it run out of memory? On the server? In the application? If in the application, why? Oh well, and most importantly overall - if you always fetch all the data, the query execution time will be long. Or at least it will look like that, but in fact the execution of the query is say 0.1 sec and retrieving all the data is 10 sec. -
Strategies for minimizing app start time
PeterPanettone replied to PeterPanettone's topic in General Help
Are you sure that would entertain the user? -
A great way to change things at run-time in Delphi applications is a RUN-TIME OBJECT-INSPECTOR.
- Today
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Uwe: PngComponents again not show old glyph with tpngiobject
alogrep replied to alogrep's topic in VCL
It works fine , tank you!! -
Strategies for minimizing app start time
Attila Kovacs replied to PeterPanettone's topic in General Help
move the splash screen randomly to 0,0 (topleft) corner and show it blurry for no reason -
Strategies for minimizing app start time
PeterPanettone replied to PeterPanettone's topic in General Help
Although that is a good idea, I am unsure whether this could be categorized as a "strategy." -
Strategies for minimizing app start time
Der schöne Günther replied to PeterPanettone's topic in General Help
Use a profiler to find out what takes time and fix those parts 😎 -
I use it often to repeat a call to a function where I missed something when stepping trough the first time. Works without a problem for this and saves the time to restart the processing. e.g.: SomeCodeHere; try SomeFunctionCall(SomeParameters); // <== Code raised an exception I need to investigate except on e: Exception do LogException(e); end; SomeMoreCodeHere; // <== so I place a breakpoint here // (after the debugger stopped on the exception) // and then set the execution point back to the function call Of course after that the call stack may be broken, but usually I stop the process anyway to fix the problem.
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I call the time the user has to wait from double-clicking the app program file until the app window becomes visible AND usable the "App Start Time" (AST). If I want to minimize AST, there are different strategies: 1. Instantiate secondary forms dynamically at run-time and not before the user needs that form. The time needed for such dynamic instantiation during the app's run-time usually is neglectable. 2. During AST, show the user a funny animated splash-screen to entertain him, so he becomes unaware of the passing time. Does anybody know of other such strategies?
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RAD Studio 11 Alexandria Patch 1 Available
Achim Kalwa replied to Uwe Raabe's topic in Tips / Blogs / Tutorials / Videos
Any the should remove that hint after installing the patch. I'm working with several VMs; and sometimes I forget which VM includes the patch and which one still needs the patch. Some information in the About-box would be helpful, too. Delphi 11 Patch 1 still shows <No Updates Installed>. -
The native VCL TComboBox does not support a custom drop down. There is nothing like that for the native VCL TComboBox, so you will have to use a 3rd party solution (for instance, TMS has a TAdvTreeComboBox component, and there is (an older) TreeComboBox available on Torry.net). Otherwise, you would have to write your own component. No.
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UAC request minimized instead of full-screen
Der schöne Günther replied to Silver Black's topic in Windows API
It is what happens when the application that called ShellExecute did not provide a HWND of a foreground window. What is the value of your hndCaller ? Maybe you passed something like Application.Handle? Compare to GetForegroundWindow - Is your value the same? -
UAC request minimized instead of full-screen
Silver Black replied to Silver Black's topic in Windows API
Also other VM/PC. My app is an installer! -
That is basically what you already can achieve with Delphi when you work with dynamic package loading. The point with such an approach is that the code must be able to store and restore states between a reload.
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I'm not questioning the usefulness of it. I would absolutely love that feature. I'm questioning why Embarcadero would want to invite the inevitable complaints when the feature, inevitably, failed to work 100% of the time - or even just not as good as VC/VC++. AFAIK, what UE does is just reloading dynamic DLLs if you recompile them. Not really comparable I think.
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Ken, I'm using XCode 13.1 Everything in the compilation and deployment goes smooth but when running the application it crashes Dave, Maybe it could be the XCode, but I don't know if I can downgrade to 13.0 from 13.1 as I'm using XCode 13.1 because that is what was available to me.. I noticed that the apps that were previously compiled works on iOS 15.1 but if I try to make a new app, blank form, with this toolchain (Delphi 11, XCode 13.1 for iOS 15.1 on iPhone 7) then the app crashes. I will try on another iPhone just in case and will try to downgrade XCode
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I remember years ago watching a video of "Notch" using Java to create a game and he leaned heavily on hot reload. It was immediately obvious the benefits. The game was running. He modified some function or other and hit a key and the game updated with the change. The time saved over days, weeks and months would be incredible. Obviously it depends on the software. but if you have to compile, run, login, get to point X it all adds up.
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Because hot reload is a modern part of the R in RAD. Stopping, recompiling and getting to the point where you were before the change would be completely unnecessary. Game devs using UE or similar tools have been using this for quite a while.
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PixelsPerInch property in datamodules and services :-(
Uwe Raabe replied to A.M. Hoornweg's topic in Delphi IDE and APIs
They are visual in the designer and the designer has to know the resolution the datamodule has been designed last. I know this is annoying and even error prone. That's why I made a suggestion to store all dfm with an implicite PixelsPerInch value of 96 and scale only for designing: Option to design in Screen PPI but save in 96 PPI That may cause the non-visual components on the datamodule moving out of sight in the designer when the datamodule is opened about 2-3 times. -
At first I couldn't imagine why could this be useful. But then I thought about all the little visual changes I need to do to on some forms to fit the desired look, and being able to hot reload a simple change of position or alignment or text and no need for reloading the project, this wold be really cool to have. Not sure how could it be useful for anything more than simple changes, but even just for my use case, I would vote for the 11.1/11.2 patch to include this feature!
