com.sun.jna.Function.getFunction()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中com.sun.jna.Function.getFunction()方法的一些代码示例，展示了Function.getFunction()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Function.getFunction()方法的具体详情如下：
包路径：com.sun.jna.Function
类名称：Function
方法名：getFunction

Function.getFunction介绍

[英]Obtain a Function representing a native function pointer. In general, this function should be used by dynamic languages; Java code should allow JNA to bind to a specific Callback interface instead by defining a return type or Structure field type.

The allocated instance represents a pointer to the native function pointer.
[中]获取表示本机函数指针的Function。一般来说，动态语言应该使用这个函数；Java代码应该允许JNA通过定义返回类型或结构字段类型绑定到特定的回调接口。
分配的实例表示指向本机函数指针的指针。

代码示例

代码示例来源：origin: net.java.dev.jna/jna

/**
 * Obtain a <code>Function</code> representing a native
 * function pointer.  In general, this function should be used by dynamic
 * languages; Java code should allow JNA to bind to a specific Callback
 * interface instead by defining a return type or Structure field type.
 *
 * <p>The allocated instance represents a pointer to the native
 * function pointer.
 *
 * @param   p       Native function pointer
 */
public static Function getFunction(Pointer p) {
  return getFunction(p, 0, null);
}

代码示例来源：origin: net.java.dev.jna/jna

/**
 * Obtain a <code>Function</code> representing a native
 * function pointer.  In general, this function should be used by dynamic
 * languages; Java code should allow JNA to bind to a specific Callback
 * interface instead by defining a return type or Structure field type.
 *
 * <p>The allocated instance represents a pointer to the native
 * function pointer.
 *
 * @param   p
 *                  Native function pointer
 * @param   callFlags
 *                  Function <a href="#callflags">call flags</a>
 */
public static Function getFunction(Pointer p, int callFlags) {
  return getFunction(p, callFlags, null);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public int AddRef() {
  Function f = Function.getFunction(vTable[1], Function.ALT_CONVENTION);
  return f.invokeInt(new Object[]{interfacePointer});
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public WinNT.HRESULT QueryInterface(REFIID byValue, PointerByReference pointerByReference) {
  Function f = Function.getFunction(vTable[0], Function.ALT_CONVENTION);
  return new WinNT.HRESULT(f.invokeInt(new Object[]{interfacePointer, byValue, pointerByReference}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public WinNT.HRESULT QueryInterface(REFIID byValue, PointerByReference pointerByReference) {
  Function f = Function.getFunction(vTable[0], Function.ALT_CONVENTION);
  return new WinNT.HRESULT(f.invokeInt(new Object[]{interfacePointer, byValue, pointerByReference}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public HRESULT GetUIObjectOf(WinDef.HWND hwndOwner, int cidl, Pointer apidl, REFIID riid, IntByReference rgfReserved, PointerByReference ppv) {
  Function f = Function.getFunction(vTable[10], Function.ALT_CONVENTION);
  return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, hwndOwner, cidl, apidl, riid, rgfReserved, ppv}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
  public HRESULT Clone(PointerByReference ppenum) {
    Function f = Function.getFunction(vTable[6], Function.ALT_CONVENTION);
    return new HRESULT(f.invokeInt(new Object[]{interfacePointer, ppenum}));
  }
};

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public WinNT.HRESULT ParseDisplayName(WinDef.HWND hwnd, Pointer pbc, String pszDisplayName, IntByReference pchEaten, PointerByReference ppidl, IntByReference pdwAttributes) {
  Function f = Function.getFunction(vTable[3], Function.ALT_CONVENTION);
  return new WinNT.HRESULT(f.invokeInt(new Object[]{interfacePointer, hwnd, pbc, pszDisplayName, pchEaten, ppidl, pdwAttributes}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public HRESULT BindToStorage(Pointer pidl, Pointer pbc, REFIID riid, PointerByReference ppv) {
  Function f = Function.getFunction(vTable[6], Function.ALT_CONVENTION);
  return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, pidl, pbc, riid, ppv}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public HRESULT CompareIDs(WinDef.LPARAM lParam, Pointer pidl1, Pointer pidl2) {
  Function f = Function.getFunction(vTable[7], Function.ALT_CONVENTION);
  return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, lParam, pidl1, pidl2}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public HRESULT CreateViewObject(WinDef.HWND hwndOwner, REFIID riid, PointerByReference ppv) {
  Function f = Function.getFunction(vTable[8], Function.ALT_CONVENTION);
  return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, hwndOwner, riid, ppv}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
public HRESULT GetAttributesOf(int cidl, Pointer apidl, IntByReference rgfInOut) {
  Function f = Function.getFunction(vTable[9], Function.ALT_CONVENTION);
  return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, cidl, apidl, rgfInOut}));
}

代码示例来源：origin: net.java.dev.jna/jna-platform

@Override
  public HRESULT SetNameOf(WinDef.HWND hwnd, Pointer pidl, String pszName, int uFlags, PointerByReference ppidlOut) {
    Function f = Function.getFunction(vTable[12], Function.ALT_CONVENTION);
    return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, hwnd, pidl, pszName, uFlags, ppidlOut}));
  }
};

代码示例来源：origin: net.java.dev.jna/jna-platform

protected int _invokeNativeInt(int vtableId, Object[] args) {
  Pointer vptr = this.getPointer().getPointer(0);
  // we take the vtable id and multiply with the pointer size (4 bytes on
  // 32bit OS)
  Function func = Function.getFunction(vptr.getPointer(vtableId
      * Native.POINTER_SIZE));
  return func.invokeInt(args);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

protected void _invokeNativeVoid(int vtableId, Object[] args) {
  Pointer vptr = this.getPointer().getPointer(0);
  // we take the vtable id and multiply with the pointer size (4 bytes on
  // 32bit OS)
  Function func = Function.getFunction(vptr.getPointer(vtableId
      * Native.POINTER_SIZE));
  func.invokeVoid(args);
}

代码示例来源：origin: net.java.dev.jna/platform

public/* [local] */void ReleaseVarDesc(
  /* [in] */VARDESC pVarDesc) {

    Pointer vptr = this.getPointer().getPointer(0);
    Function func = Function.getFunction(vptr.getPointer(84));
    func.invokeInt(new Object[] { this.getPointer(), pVarDesc });
  }
}

代码示例来源：origin: net.java.dev.jna/platform

public HRESULT IsName(
/* [annotation][out][in] */
WString szNameBuf,
/* [in] */ULONG lHashVal,
/* [out] */BOOLbyReference pfName) {
  Pointer vptr = this.getPointer().getPointer(0);
  Function func = Function.getFunction(vptr.getPointer(40));
  int hr = func.invokeInt(new Object[] { this.getPointer(), szNameBuf,
      lHashVal, pfName });
  return new HRESULT(hr);
}

代码示例来源：origin: net.java.dev.jna/platform

public/* [local] */HRESULT GetFuncDesc(
/* [in] */UINT index,
/* [out] */FUNCDESC.ByReference pFuncDesc) {
  Pointer vptr = this.getPointer().getPointer(0);
  Function func = Function.getFunction(vptr.getPointer(20));
  int hr = func.invokeInt(new Object[] { this.getPointer(), index,
      pFuncDesc });
  return new HRESULT(hr);
}

代码示例来源：origin: net.java.dev.jna/platform

public/* [local] */HRESULT GetNames(
/* [in] */MEMBERID memid,
/* [length_is][size_is][out] */BSTR[] rgBstrNames,
/* [in] */UINT cMaxNames,
/* [out] */UINTbyReference pcNames) {
  Pointer vptr = this.getPointer().getPointer(0);
  Function func = Function.getFunction(vptr.getPointer(28));
  int hr = func.invokeInt(new Object[] { this.getPointer(), memid,
      rgBstrNames, cMaxNames, pcNames });
  return new HRESULT(hr);
}

代码示例来源：origin: net.java.dev.jna/platform

public HRESULT GetTypeAttr(
/* [out] */TYPEATTR.ByReference pTypeAttr) {
  Pointer vptr = this.getPointer().getPointer(0);
  Function func = Function.getFunction(vptr.getPointer(12));
  int hr = func.invokeInt(new Object[] { this.getPointer(), pTypeAttr });
  pTypeAttr.read();
  return new HRESULT(hr);
}

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