最近在研究pos打印机相关功能， 调用winapi以及跨进程通信等，都涉及到类型之间的转换。
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C/C++ |
C# |
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HANDLE, LPDWORD, LPVOID, void* |
IntPtr |
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LPCTSTR, LPCTSTR, LPSTR, char*, const char*, Wchar_t*, LPWSTR |
String [in], StringBuilder [in, out] |
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DWORD, unsigned long, Ulong |
UInt32, [MarshalAs(UnmanagedType.U4)] |
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bool |
bool |
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LP<struct> |
[In] ref <struct> |
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SIZE_T |
uint |
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LPDWORD |
out uint |
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LPTSTR |
[Out] StringBuilder |
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PULARGE_INTEGER |
out ulong |
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WORD |
uInt16 |
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Byte, unsigned char |
byte |
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Short |
Int16 |
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Long, int |
Int32 |
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float |
single |
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double |
double |
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NULL pointer |
IntPtr.Zero |
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Uint |
Uint32 |
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Windows Data Type |
.NET Data Type |
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BOOL, BOOLEAN |
Boolean or Int32 |
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BSTR |
String |
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BYTE |
Byte |
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CHAR |
Char |
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DOUBLE |
Double |
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DWORD |
Int32 or UInt32 |
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FLOAT |
Single |
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HANDLE (and all other handle types, such as HFONT and HMENU) |
IntPtr, UintPtr or HandleRef |
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HRESULT |
Int32 or UInt32 |
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INT |
Int32 |
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LANGID |
Int16 or UInt16 |
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LCID |
Int32 or UInt32 |
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LONG |
Int32 |
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LPARAM |
IntPtr, UintPtr or Object |
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LPCSTR |
String |
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LPCTSTR |
String |
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LPCWSTR |
String |
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LPSTR |
String or StringBuilder* |
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LPTSTR |
String or StringBuilder |
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LPWSTR |
String or StringBuilder |
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LPVOID |
IntPtr, UintPtr or Object |
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LRESULT |
IntPtr |
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SAFEARRAY |
.NET array type |
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SHORT |
Int16 |
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TCHAR |
Char |
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UCHAR |
SByte |
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UINT |
Int32 or UInt32 |
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ULONG |
Int32 or UInt32 |
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VARIANT |
Object |
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VARIANT_BOOL |
Boolean |
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WCHAR |
Char |
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WORD |
Int16 or UInt16 |
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WPARAM |
IntPtr, UintPtr or Object |
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Wtypes.h 中的非托管类型 |
非托管 C 语言类型 |
托管类名 |
说明 |
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HANDLE |
void* |
System.IntPtr |
在 32 位 Windows 操作系统上为 32 位，在 64 位 Windows 操作系统上为 64 位。 |
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BYTE |
unsigned char |
System.Byte |
8 位 |
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SHORT |
short |
System.Int16 |
16 位 |
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WORD |
unsigned short |
System.UInt16 |
16 位 |
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INT |
int |
System.Int32 |
32 位 |
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UINT |
unsigned int |
System.UInt32 |
32 位 |
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LONG |
long |
System.Int32 |
32 位 |
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BOOL |
long |
System.Int32 |
32 位 |
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DWORD |
unsigned long |
System.UInt32 |
32 位 |
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ULONG |
unsigned long |
System.UInt32 |
32 位 |
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CHAR |
char |
System.Char |
用 ANSI 修饰。 |
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LPSTR |
char* |
System.String 或 System.Text.StringBuilder |
用 ANSI 修饰。 |
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LPCSTR |
Const char* |
System.String 或 System.Text.StringBuilder |
用 ANSI 修饰。 |
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LPWSTR |
wchar_t* |
System.String 或 System.Text.StringBuilder |
用 Unicode 修饰。 |
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LPCWSTR |
Const wchar_t* |
System.String 或 System.Text.StringBuilder |
用 Unicode 修饰。 |
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FLOAT |
Float |
System.Single |
32 位 |
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DOUBLE |
Double |
System.Double |
64 位 |