How Unicode strings can be passed from a managed to an unmanaged function...
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Published on 2010-05-31T05:48:00Z
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2010/05/31
5:52 UTC
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delphi
|delphi-2007
I will really appreciate anybody's help about how a Unicode string can be passed (marshaled) from a managed (Delphi .NET) to an unmanaged (Delphi's Win32 DLL) function.
The managed environment (Delphi .NET):
...
interface
...
const TM_PRO_CONVERTER = 'TM.PROFileConverter.dll';
function ImportLineworksFromPROFile(FileName :String; TargetFileNameDXF :String): Integer;
...
implementation
...
[DllImport(TM_PRO_CONVERTER, EntryPoint = 'ImportLineworksFromPROFile', CharSet = CharSet.Ansi, SetLastError = True, CallingConvention = CallingConvention.StdCall)]
function ImportLineworksFromPROFile(FileName :String; TargetFileNameDXF :String): Integer; external;
...
The unmanaged environment (Delphi's Win32 DLL):
library TM.PROFileConverter;
...
function ImportLineworksFromPROFile(FileName :String; TargetFileNameDXF :String) :Integer; stdcall;
exports ImportLineworksFromPROFile;
...
Thank you for your time.
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