We can use the CreateHandle property or DelphiVCL.Application.CreateHandle to generate a main window for the application if it does not already have one.
Do not call CreateHandle directly. In EXEs, the application’s constructor calls CreateHandle. In DLLs, it does not.
CreateHandle encapsulates much of what traditional Windows programs write in WinMain. For example, CreateHandle…
The Create method of the DelphiVCL.Application object, DelphiVCL.Application.Create, creates a new VCL-based application.
Do not call Create directly. Each GUI application automatically creates an instance of an application object.
For DelphiVCL.Application or…
Use the DialogHandle property or DelphiVCL.Application.DialogHandle to provide a mechanism for using non-VCL dialog boxes in an application.
Use DialogHandle when displaying a modeless dialog box that was created using the CreateDialog API function. Assigning the handle…
Use the FieldAddress property or DelphiVCL.Application.FieldAddress to return the address of a published object field.
FieldAddress is used internally by the component streaming system to access a specified published field of an object. FieldAddress returns a pointer to the field, if it exists. If the object has no published field by that name, FieldAddress returns nil (Delphi) or NULL…
Use the FindComponent property or DelphiVCL.Application.FindComponent to indicate whether a given component is owned by the component.
FindComponent returns the component in the Components property array with the name that matches the string in the AName parameter. Use…
Use the Free property or DelphiVCL.Application.Free to destroy an object and free its associated memory, if necessary.
Use Free to destroy an object. Free automatically calls the destructor if the object reference is not nil. Any object instantiated at run time that does…
Use the Equals property or DelphiVCL.Application.Equals to check whether the current instance and the Obj parameter are equal.
The function has one Obj parameter of the TObject type.
By default, the Equals method shows whether the addresses corresponding to the current object and the Obj object are identical. The method returns a boolean value that represents the equality between the two…
Use the EndFunctionInvoke property or DelphiVCL.Application.EndFunctionInvoke to block the caller until the specified ASyncResult completes.
Returns the result from the method that BeginInvoke asynchronously executes. This result is immediately returned after the given…
The EnumAllWindowsOnActivateHint property or DelphiVCL.Application.EnumAllWindowsOnActivateHint is a Boolean variable used for hint displaying.
EnumAllWindowsOnActivateHint is used internally by VCL for hint displaying. Do not use it directly.
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Use the EndInvoke property or DelphiVCL.Application.EndInvoke to block the caller until the specified ASyncResult completes.
Returns the result from the method that BeginInvoke asynchronously executes. This result is immediately returned after the given IAsyncResult finishes.
EndInvoke raises any exception that may occur while the asynchronous method executes.
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