RAD Studio for Microsoft .NET
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When porting VCL applications from Delphi 7 to RAD Studio, there are issues you need to consider. Along with basic language elements that need to be replaced or modified, there are strategies that you should follow to make sure that you port your applications fully and reliably.
This topic includes
Porting Delphi 7 applications to RAD Studio exposes several language issues in the .NET Framework. For instance, the .NET Framework considers pointers to be unsafe and so does not consider applications that use pointers to fall into the category of managed code. To be compliant with the .NET Framework, you need to modify your applications to avoid or circumvent the use of pointers, the pChar type, and other language-specific elements.
In addition, there are critical issues with the Win32 API, using crackers, migrating char types, and other topics.
When porting a Delphi 7 package to RAD Studio, you will need to change the old package names in the "Requires" list to the corresponding new package names. The following table shows the old and new names.
Old Package Name |
New Package Name |
rtl |
Borland.Delphi and Borland.VclRtl |
vcl |
Borland.Vcl |
vclx |
Borland.VclX |
dbrtl |
Borland.VclDbRtl |
bdertl |
Borland.VclBdeRtl |
vcldb |
Borland.VclDbCtrls |
dbexpress |
Borland.VclDbExpress |
dbxcds |
Borland.VclDbxCds |
dsnap |
Borland.VclDSnap |
dsnapcon |
Borland.VclDSnapCon |
vclactnband |
Borland.VclActnBand |
Borland.VclActnBand Packages are now installed by using ComponentInstalled .NET Components.NET VCL Components.
Several new features have been added to the Delphi language to support programming concepts and features of the .NET platform and the CLS:
The .NET Framework employs a major architectural shift in how it handles web services and web service clients. Your existing web service client applications need to be modified to operate on the .NET Framework. RAD Studio does not support the RIO components, and uses a more transparent .NET approach to managing web service client applications. You will need to eliminate RIO components and modify the way you access WSDL documents.
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