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CorPinvokeMap Enumeration

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Specifies options for a PInvoke call.

Syntax

typedef enum  CorPinvokeMap {  
  
    pmNoMangle          = 0x0001,  
  
    pmCharSetMask       = 0x0006,  
    pmCharSetNotSpec    = 0x0000,  
    pmCharSetAnsi       = 0x0002,  
    pmCharSetUnicode    = 0x0004,  
    pmCharSetAuto       = 0x0006,  
  
    pmBestFitUseAssem   = 0x0000,  
    pmBestFitEnabled    = 0x0010,  
    pmBestFitDisabled   = 0x0020,  
    pmBestFitMask       = 0x0030,  
  
    pmThrowOnUnmappableCharUseAssem   = 0x0000,  
    pmThrowOnUnmappableCharEnabled    = 0x1000,  
    pmThrowOnUnmappableCharDisabled   = 0x2000,  
    pmThrowOnUnmappableCharMask       = 0x3000,  
  
    pmSupportsLastError = 0x0040,
  
    pmCallConvMask      = 0x0700,  
    pmCallConvWinapi    = 0x0100,  
    pmCallConvCdecl     = 0x0200,  
    pmCallConvStdcall   = 0x0300,  
    pmCallConvThiscall  = 0x0400,  
    pmCallConvFastcall  = 0x0500,  
  
    pmMaxValue          = 0xFFFF  
  
} CorPinvokeMap;

Members

Member Description
pmNoMangle Use each member name as specified.
pmCharSetMask Reserved.
pmCharSetNotSpec Reserved.
pmCharSetAnsi Marshal strings as multiple-byte character strings.
pmCharSetUnicode Marshal strings as Unicode 2-byte characters.
pmCharSetAuto Automatically marshal strings appropriately for the target operating system. The default is Unicode on Windows.
pmBestFitUseAssem Reserved.
pmBestFitEnabled Perform best-fit mapping of Unicode characters that lack an exact match in the ANSI character set.
pmBestFitDisabled Do not perform best-fit mapping of Unicode characters. In this case, all unmappable characters will be replaced by a ‘?’.
pmBestFitMask Reserved.
pmThrowOnUnmappableCharUseAssem Reserved.
pmThrowOnUnmappableCharEnabled Throw an exception when the interop marshaller encounters an unmappable character.
pmThrowOnUnmappableCharDisabled Do not throw an exception when the interop marshaller encounters an unmappable character.
pmThrowOnUnmappableCharMask Reserved
pmSupportsLastError Allow the callee to call the Win32 SetLastError function before returning from the attributed method.
pmCallConvMask Reserved
pmCallConvWinapi Use the default platform calling convention. For example, on Windows the default is StdCall and on Windows CE .NET it is Cdecl.
pmCallConvCdecl Use the Cdecl calling convention. In this case, the caller cleans the stack. This enables calling functions with varargs (that is, functions that accept a variable number of parameters).
pmCallConvStdcall Use the StdCall calling convention. In this case, the callee cleans the stack. This is the default convention for calling unmanaged functions with platform invoke.
pmCallConvThiscall Use the ThisCall calling convention. In this case, the first parameter is the this pointer and is stored in register ECX. Other parameters are pushed on the stack. The ThisCall calling convention is used to call methods on classes exported from an unmanaged DLL.
pmCallConvFastcall Reserved.
pmMaxValue Reserved.

Requirements

Platforms: See System Requirements.

Header: CorHdr.h

.NET Framework Versions: Available since 1.0

See also