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

  1. /**
  2.  * Obtain a <code>Function</code> representing a native
  3.  * function pointer.  In general, this function should be used by dynamic
  4.  * languages; Java code should allow JNA to bind to a specific Callback
  5.  * interface instead by defining a return type or Structure field type.
  6.  *
  7.  * <p>The allocated instance represents a pointer to the native
  8.  * function pointer.
  9.  *
  10.  * @param   p       Native function pointer
  11.  */
  12. public static Function getFunction(Pointer p) {
  13.   return getFunction(p, 0, null);
  14. }

代码示例来源：origin: net.java.dev.jna/jna

  1. /**
  2.  * Obtain a <code>Function</code> representing a native
  3.  * function pointer.  In general, this function should be used by dynamic
  4.  * languages; Java code should allow JNA to bind to a specific Callback
  5.  * interface instead by defining a return type or Structure field type.
  6.  *
  7.  * <p>The allocated instance represents a pointer to the native
  8.  * function pointer.
  9.  *
  10.  * @param   p
  11.  *                  Native function pointer
  12.  * @param   callFlags
  13.  *                  Function <a href="#callflags">call flags</a>
  14.  */
  15. public static Function getFunction(Pointer p, int callFlags) {
  16.   return getFunction(p, callFlags, null);
  17. }

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

  1. @Override
  2. public int AddRef() {
  3.   Function f = Function.getFunction(vTable[1], Function.ALT_CONVENTION);
  4.   return f.invokeInt(new Object[]{interfacePointer});
  5. }

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

  1. @Override
  2. public WinNT.HRESULT QueryInterface(REFIID byValue, PointerByReference pointerByReference) {
  3.   Function f = Function.getFunction(vTable[0], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT(f.invokeInt(new Object[]{interfacePointer, byValue, pointerByReference}));
  5. }

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

  1. @Override
  2. public WinNT.HRESULT QueryInterface(REFIID byValue, PointerByReference pointerByReference) {
  3.   Function f = Function.getFunction(vTable[0], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT(f.invokeInt(new Object[]{interfacePointer, byValue, pointerByReference}));
  5. }

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

  1. @Override
  2. public HRESULT GetUIObjectOf(WinDef.HWND hwndOwner, int cidl, Pointer apidl, REFIID riid, IntByReference rgfReserved, PointerByReference ppv) {
  3.   Function f = Function.getFunction(vTable[10], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, hwndOwner, cidl, apidl, riid, rgfReserved, ppv}));
  5. }

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

  1. @Override
  2.   public HRESULT Clone(PointerByReference ppenum) {
  3.     Function f = Function.getFunction(vTable[6], Function.ALT_CONVENTION);
  4.     return new HRESULT(f.invokeInt(new Object[]{interfacePointer, ppenum}));
  5.   }
  6. };

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

  1. @Override
  2. public WinNT.HRESULT ParseDisplayName(WinDef.HWND hwnd, Pointer pbc, String pszDisplayName, IntByReference pchEaten, PointerByReference ppidl, IntByReference pdwAttributes) {
  3.   Function f = Function.getFunction(vTable[3], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT(f.invokeInt(new Object[]{interfacePointer, hwnd, pbc, pszDisplayName, pchEaten, ppidl, pdwAttributes}));
  5. }

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

  1. @Override
  2. public HRESULT BindToStorage(Pointer pidl, Pointer pbc, REFIID riid, PointerByReference ppv) {
  3.   Function f = Function.getFunction(vTable[6], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, pidl, pbc, riid, ppv}));
  5. }

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

  1. @Override
  2. public HRESULT CompareIDs(WinDef.LPARAM lParam, Pointer pidl1, Pointer pidl2) {
  3.   Function f = Function.getFunction(vTable[7], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, lParam, pidl1, pidl2}));
  5. }

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

  1. @Override
  2. public HRESULT CreateViewObject(WinDef.HWND hwndOwner, REFIID riid, PointerByReference ppv) {
  3.   Function f = Function.getFunction(vTable[8], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, hwndOwner, riid, ppv}));
  5. }

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

  1. @Override
  2. public HRESULT GetAttributesOf(int cidl, Pointer apidl, IntByReference rgfInOut) {
  3.   Function f = Function.getFunction(vTable[9], Function.ALT_CONVENTION);
  4.   return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, cidl, apidl, rgfInOut}));
  5. }

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

  1. @Override
  2.   public HRESULT SetNameOf(WinDef.HWND hwnd, Pointer pidl, String pszName, int uFlags, PointerByReference ppidlOut) {
  3.     Function f = Function.getFunction(vTable[12], Function.ALT_CONVENTION);
  4.     return new WinNT.HRESULT( f.invokeInt(new Object[]{interfacePointer, hwnd, pidl, pszName, uFlags, ppidlOut}));
  5.   }
  6. };

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

  1. protected int _invokeNativeInt(int vtableId, Object[] args) {
  2.   Pointer vptr = this.getPointer().getPointer(0);
  3.   // we take the vtable id and multiply with the pointer size (4 bytes on
  4.   // 32bit OS)
  5.   Function func = Function.getFunction(vptr.getPointer(vtableId
  6.       * Native.POINTER_SIZE));
  7.   return func.invokeInt(args);
  8. }

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

  1. protected void _invokeNativeVoid(int vtableId, Object[] args) {
  2.   Pointer vptr = this.getPointer().getPointer(0);
  3.   // we take the vtable id and multiply with the pointer size (4 bytes on
  4.   // 32bit OS)
  5.   Function func = Function.getFunction(vptr.getPointer(vtableId
  6.       * Native.POINTER_SIZE));
  7.   func.invokeVoid(args);
  8. }

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

  1. public/* [local] */void ReleaseVarDesc(
  2.   /* [in] */VARDESC pVarDesc) {
  4.     Pointer vptr = this.getPointer().getPointer(0);
  5.     Function func = Function.getFunction(vptr.getPointer(84));
  6.     func.invokeInt(new Object[] { this.getPointer(), pVarDesc });
  7.   }
  8. }

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

  1. public HRESULT IsName(
  2. /* [annotation][out][in] */
  3. WString szNameBuf,
  4. /* [in] */ULONG lHashVal,
  5. /* [out] */BOOLbyReference pfName) {
  6.   Pointer vptr = this.getPointer().getPointer(0);
  7.   Function func = Function.getFunction(vptr.getPointer(40));
  8.   int hr = func.invokeInt(new Object[] { this.getPointer(), szNameBuf,
  9.       lHashVal, pfName });
  10.   return new HRESULT(hr);
  11. }

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

  1. public/* [local] */HRESULT GetFuncDesc(
  2. /* [in] */UINT index,
  3. /* [out] */FUNCDESC.ByReference pFuncDesc) {
  4.   Pointer vptr = this.getPointer().getPointer(0);
  5.   Function func = Function.getFunction(vptr.getPointer(20));
  6.   int hr = func.invokeInt(new Object[] { this.getPointer(), index,
  7.       pFuncDesc });
  8.   return new HRESULT(hr);
  9. }

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

  1. public/* [local] */HRESULT GetNames(
  2. /* [in] */MEMBERID memid,
  3. /* [length_is][size_is][out] */BSTR[] rgBstrNames,
  4. /* [in] */UINT cMaxNames,
  5. /* [out] */UINTbyReference pcNames) {
  6.   Pointer vptr = this.getPointer().getPointer(0);
  7.   Function func = Function.getFunction(vptr.getPointer(28));
  8.   int hr = func.invokeInt(new Object[] { this.getPointer(), memid,
  9.       rgBstrNames, cMaxNames, pcNames });
  10.   return new HRESULT(hr);
  11. }

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

  1. public HRESULT GetTypeAttr(
  2. /* [out] */TYPEATTR.ByReference pTypeAttr) {
  3.   Pointer vptr = this.getPointer().getPointer(0);
  4.   Function func = Function.getFunction(vptr.getPointer(12));
  5.   int hr = func.invokeInt(new Object[] { this.getPointer(), pTypeAttr });
  6.   pTypeAttr.read();
  7.   return new HRESULT(hr);
  8. }

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