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What does the OnMessage Event in DelphiVCL.Application do?

In Windows application development the OnMessage or DelphiVCL.Application.OnMessage occurs when the application receives a message from either the Windows operating system or another application. How to use the DelphiVCL.Application.OnMessage event properly? We use the OnMessage to trap any or all Windows messages posted to all windows in the application. The OnMessage event occurs when an…
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DelphiDelphiVCLPythonPython GUIWindows

What Is The Deallocates Method And What Does It Do?

During windows development, or in fact any similar apps, use the FreeInstance method or DelphiVCL.Application.FreeInstance to deallocate memory allocated by a previous call to the NewInstance method. All destructors call FreeInstance automatically to deallocate memory that was allocated by overriding NewInstance. Do not call FreeInstance directly. FreeInstance should be overridden if…
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How To Make Your Projects Build Securely

I guess we can all agree that security and privacy are both important factors that we must highly consider before dealing with any type of application. Some IDE software helps immensely, of course, but unfortunately, many companies are taking advantage of this where users’ personal information is being compromised. In this video presented by Rebeca Sarai, we will learn more about privacy and…
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DelphiDelphiVCLPythonPython GUIWindows

What Does The OnIdle Event In DelphiVCL.Application Do?

During Windows development, the OnIdle or DelphiVCL.Application.OnIdle occurs when an application becomes idle. Write an OnIdle event handler to perform special processing when an application is idle. An application is idle when it is not processing code. For example, an application is idle when it is waiting for input from the user. OnIdle is called only once, as the application transitions…
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