SetValue和Release不是函数 [英] SetValue and Release are not functions
问题描述
SetValue ，但我找不到任何源代码。它不在一个DLL中，它像 InitPropVariantFromString ，它在一个头文件中，但是我找不到它。 :(如果你可以请只显示我htat C ++代码，我会从那里拿）：底部的东西是显示我所做的努力。 p>
这是我转换的小C ++代码：
OnCreate（HWND hwnd，LPCREATESTRUCT lpcs）
{
IPropertyStore * pps;
HRESULT hr = SHGetPropertyStoreForWindow（hwnd，IID_PPV_ARGS（& pps））;
if（SUCCEEDED（hr））{
IPropertyStore_SetValue（pps，PKEY_AppUserModel_ID，LContoso.Scratch）;
$ / code $ / pre
我已经把它翻译成了：var ppv = ctypes.voidptr_t（0）;
var pps = new IID（）;
var HR_pps = CLSIDFromString（'{886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99}'，pps.address（））;
if（！checkHRESULT（HR_pps））{throw new Error（'checkHRESULT error'）; }
var hr = SHGetPropertyStoreForWindow（hwnd，pps.address（），ppv.address（））;
if（！checkHRESULT（hr））{throw new Error（'checkHRESULT error'）; }
var pszValue = ctypes.jschar.array（）（'Contoso.Scratch'）; // PCWSTR
IPropertyStore_SetValue（pps.address（），PKEY_AppUserModel_ID，pszValue.address（））;
从这个C ++转换而来的
IPropertyStore_SetValue
$ b $ pre $HRESULT IPropertyStore_SetValue（IPropertyStore * pps，REFPROPERTYKEY pkey，PCWSTR pszValue）
{
PROPVARIANT var;
HRESULT hr = InitPropVariantFromString（pszValue，& var）;
if（SUCCEEDED（hr））{
hr = pps-> SetValue（pkey，var）;
PropVariantClear（& var）;
}
return hr;
$ / code>
我得到了：
var struct_PROPVARIANT = ctypes.StructType（'PROPVARIANT'，[
{'fntud'：struct_GUID}，// GUID
{'pid'：ctypes .unsigned_long}，// DWORD
//从loomo注释union :: union不被js-ctypes支持https://bugzilla.mozilla.org/show_bug.cgi?id=535378你总是可以指派类型指针，至少只要你知道哪个类型是最大的
//所以现在在我的情况下，我知道InitPropVariantFromString正在寻找pwszVal，所以忘记所有其他的联盟废话，只是离开这个
{'pwszVal'：new ctypes.PointerType（ctypes.jschar）} // LPWSTR
]）;
var IPropertyStore_SetValue =函数（pps / ** IPopertyStore指针** /，pkey / ** PROPERTYKEY ** /，pszValue / ** PCWSTR ** /）{
var v = new struct_PROPVARIANT（）; // PROPVARIANT
var rez = InitPropVariantFromString（pszValue，v.address（））;
if（rez）{
console.info（'pps.SetValue'，pps.SetValue）;
pps.SetValue（pkey，v）;
} else {
throw new Error（'failed InitPropVariantFromString'）;
}
返回true;
$ b 所以这需要我写 InitPropVariantFromString
$ p $函数InitPropVariantFromString（string / ** PCWSTR ** /，propvarPtr / ** PROPVARIANT指针** /）{
var hr = SHStrDup（string，propvarPtr.contents.pwszVal.address（））;
if（！checkHRESULT（hr））{
// PropVariantInit（propvarPtr）; //可以跳过这个，它只是一个memset
}
返回true;
$ b $ hr
$ b
对我的SHSTRDUP DILEMMA的一个小小的内容（不是一个问题，只是表明我努力工作，通过无法解释的怪异才得以实现）
所以这需要我做 SHStrDup ，我认为这需要两个
参数 ctypes.jschar.ptr ，因为它是 LPCTSTR
和 LPTSTR 的第二个参数。 / p>
对于第一个参数，我传递了召回
ctypes.jschar.array（）（'Contoso.Scratch'）的PCWSTR。 。所以当我把第一个arg
定义设置为 ctypes.jschar.ptr 时，它不会使用它抛出
这个错误：预期类型指针，得到
ctypes.jschar.array（16）.ptr（ctypes.UInt64（0x2855b560））
所以我把定义从 ctypes.jschar.ptr 更改为
ctypes.voidptr_t in defintion所以然后它为这个参数
工作，但随后抛出第二个参数错误记得
propvarPtr.contents.pwszVal.address（）： ctypes.jschar.ptr.ptr（ctypes.UInt64（0x20fdb3b4）），
所以我最后把 SHStrDup 这两个参数设置为
ctypes.voidptr_t ，它工作。不知道为什么，但它的工作。和
propvarPtr.contents.pwszVal 肯定会被填充，因为
当我console.log它显示：propvarPtr .contents.pwszValCData {
contents：C} 。
所以最后 SHStrDup defintion看起来像这样：
/ * http://msdn.microsoft.com/en- us / library / windows / desktop / bb759924％28v = vs.85％29.aspx
* HRESULT SHStrDup（
* __in_ LPCTSTR pszSource，
* __out_ LPTSTR * ppwsz
* ）;
* /
var SHStrDup = shlwapi.declare（'SHStrDupW'，ctypes.winapi_abi，ctypes.long，// HRESULT
ctypes.voidptr_t，// LPCTSTR //应该是ctypes.jschar .ptr or ctypes.char.ptr //我试图在这里传递PCWSTR，它是`ctypes.jschar.array（）（'blah blah'）。address（）`
ctypes.voidptr_t // LPTSTR //应该是ctypes.jschar.ptr或ctypes.char.ptr / / im试图传递地址struct_PROPVARIANT.pwszVal这是新的ctypes.PointerType（ctypes.jschar）
）;
所有的传递，我最终回到 IPropertyStore_SetValue 在这个if：
var rez = InitPropVariantFromString（pszValue，v.address（））;
if（rez）{
console.info（'pps.SetValue'，pps.SetValue）;
pps.SetValue（pkey，v）;
} else {
throw new Error（'failed InitPropVariantFromString'）;
现在 rez 是真正的，所以它现在尝试 pps.SetValue 这是它去的地方，我不知道如何解决它。 ：（b / b）
我搜索了MSDN，想创建自己的 SetValue ，但是我找不到任何源代码。它不在一个DLL中，它像 InitPropVariantFromString ，它在一个头文件中，但是我找不到它。:(如果你可以请告诉我一下htat C ++代码我会从这里拿：）解决方案，我不得不使用VTBL：解决方案
/github.com/Noitidart/_scratchpad/blob/master/IPropertyStore%20COM%20jsctypes.jsrel =nofollow> https://github.com/Noitidart/_scratchpad/blob/master/IPropertyStore%20COM%20jsctypes.js
Vtbl 中定义的顺序很重要，所以请确保它的正确性你想用 Vtbl s var IPropertyStoreVtbl = new ctypes .StructType（'IPropertyStoreVtbl'）;
var IPropertyStore = new ctypes.StructType（'IPropertyStore'，[{
'lpVtbl'：IPropertyStoreVtbl.ptr
} ]）;
this.IPropertyStorePtr = new ctypes.PointerType（IPropertyStore）;
IPropertyStoreVtbl.define（
[{//开始从IUnknown继承$ b $'QueryInterface'：ctypes.FunctionType（ctypes.stdcall_abi，
this.HRESULT，[
IPropertyStore.ptr，
this.REFIID，// riid
this.VOIDPTR // ** ppvObject
]）。ptr
}，{
' AddRef'：ctypes.FunctionType（ctypes.stdcall_abi，
this.ULONG，[
IPropertyStore.ptr
]）。ptr
}，{
'Release'： ctypes.FunctionType（ctypes.stdcall_abi，
this.ULONG，[
IPropertyStore.ptr
]）。ptr
}，{//结束继承自IUnknown //启动IPropertyStore
'GetCount'：ctypes.FunctionType（ctypes.stdcall_abi，
this.HRESULT，[
IPropertyStore.ptr，
this.DWORD.ptr // * cProps
] ）.ptr
}，{
'GetAt'：ctypes.FunctionType（ctypes.stdcall_abi，
this.HRESULT，[
IPropertyStore.ptr，
this.DWORD，// iProp
this.PROPERTYKEY.ptr ptr
}，{
'GetValue'：ctypes.FunctionType（ctypes.stdcall_abi，$ b $ this.HRESULT，[
IPropertyStore。 ptr，
this.REFPROPERTYKEY，// key
this.PROPVARIANT.ptr // * pv
]）。ptr
}，{
'SetValue'：ctypes .FunctionType（ctypes.stdcall_abi，
this.HRESULT，[
IPropertyStore.ptr，
this.REFPROPERTYKEY，// key
this.REFPROPVARIANT // propvar
] ）.ptr
}，{
'Commit'：ctypes.FunctionType（ctypes.stdcall_abi，
this.HRESULT，[
IPropertyStore.ptr
]）。ptr
}]
）;
然后获取窗口的 IPropertyStore ：
var ppsPtr = new ostypes.IPropertyStorePtr（）;
var hr_SHGetPropertyStoreForWindow = _dec（'SHGetPropertyStoreForWindow'）（cHwnd，IID_IPropertyStore.address（），ppsPtr.address（））;
checkHRESULT（hr_SHGetPropertyStoreForWindow，'SHGetPropertyStoreForWindow'）;
var pps = ppsPtr.contents.lpVtbl.contents;现在你可以使用 IPropertyStore :: SetValue 和 IPropertyStore :: Release 但确保将 ppsPtr 作为第一个参数传递给它们，然后剩下的参数就是你会期望： var hr = pps.SetValue（ppsPtr，firstArgOf_SetValue，secondArgOf_SetValue）
编辑：
从暂存区添加复制粘贴可运行脚本。
复制并粘贴： http://pastebin.mozilla.org/8429999
这将完成相当于这个XPCOM：
var win = Services。 wm.getMostRecentWindow（NULL）;
Cc [@ mozilla.org/windows-taskbar;1\"].getService(Ci.nsIWinTaskbar).setGroupIdForWindow(win，'Contoso.Scratch'）
是的，但它的好处是，没有XPCOM设置 RelaunchCommand 和 RelaunchIconResource 等，这就是为什么js-ctypes是必要的。
In summary: I searched MSDN and thought to create my own SetValue but I can't find any sourcecode for it. It's not in a DLL, its like InitPropVariantFromString, it's in a header file, but I can't find it. :( If you can please just show me htat C++ code I'll take it from there :)
Bottom stuff is to show the efforts I put on it.
This is the tiny C++ code I'm converting:
OnCreate(HWND hwnd, LPCREATESTRUCT lpcs)
{
IPropertyStore *pps;
HRESULT hr = SHGetPropertyStoreForWindow(hwnd, IID_PPV_ARGS(&pps));
if (SUCCEEDED(hr)) {
IPropertyStore_SetValue(pps, PKEY_AppUserModel_ID, L"Contoso.Scratch");
}
}
I have translated this to:
var ppv = ctypes.voidptr_t(0);
var pps = new IID();
var HR_pps = CLSIDFromString('{886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99}', pps.address());
if (!checkHRESULT(HR_pps)) { throw new Error('checkHRESULT error'); }
var hr = SHGetPropertyStoreForWindow(hwnd, pps.address(), ppv.address());
if (!checkHRESULT(hr)) { throw new Error('checkHRESULT error'); }
var pszValue = ctypes.jschar.array()('Contoso.Scratch'); // PCWSTR
IPropertyStore_SetValue(pps.address(), PKEY_AppUserModel_ID, pszValue.address());
This IPropertyStore_SetValue I converted from this C++:
HRESULT IPropertyStore_SetValue(IPropertyStore *pps, REFPROPERTYKEY pkey, PCWSTR pszValue)
{
PROPVARIANT var;
HRESULT hr = InitPropVariantFromString(pszValue, &var);
if (SUCCEEDED(hr)) {
hr = pps->SetValue(pkey, var);
PropVariantClear(&var);
}
return hr;
}
I got it to:
var struct_PROPVARIANT = ctypes.StructType('PROPVARIANT', [
{'fntud': struct_GUID}, // GUID
{'pid': ctypes.unsigned_long}, // DWORD
// comment from loomo on union :: union not supported by js-ctypes https://bugzilla.mozilla.org/show_bug.cgi?id=535378 "You can always typecast pointers, at least as long as you know which type is the biggest"
// so now in my case i know that InitPropVariantFromString is looking to se the pwszVal so forget all the other crap in the union and just leave this one
{'pwszVal': new ctypes.PointerType(ctypes.jschar)} // LPWSTR
]);
var IPropertyStore_SetValue = function(pps /** IPopertyStore pointer **/, pkey /** PROPERTYKEY **/, pszValue /** PCWSTR **/) {
var v = new struct_PROPVARIANT(); // PROPVARIANT
var rez = InitPropVariantFromString(pszValue, v.address());
if (rez) {
console.info('pps.SetValue', pps.SetValue);
pps.SetValue(pkey, v);
} else {
throw new Error('failed InitPropVariantFromString');
}
return true;
}
So this required me to write InitPropVariantFromString which I did:
function InitPropVariantFromString(string /** PCWSTR **/, propvarPtr /** PROPVARIANT pointer **/) {
var hr = SHStrDup(string, propvarPtr.contents.pwszVal.address());
if (!checkHRESULT(hr)) {
//PropVariantInit(propvarPtr); //can skip this, it just does a memset
}
return true;
}
A SMALL ASIDE ON MY SHSTRDUP DILEMMA (not a question just showing i worked hard and through unexplainable weirdness got it to work)
So this required me to do SHStrDup which I thought would take two
arguments of ctypes.jschar.ptr as it is first argument of LPCTSTR
and second arg of LPTSTR.
For the first argument, i was passing the PCWSTR of recall
ctypes.jschar.array()('Contoso.Scratch'). So when I the first arg
definition set to ctypes.jschar.ptr it wouldn't work use it throws
this error: expected type pointer, got
ctypes.jschar.array(16).ptr(ctypes.UInt64("0x2855b560"))
So I change in the defintion from ctypes.jschar.ptr to
ctypes.voidptr_t in defintion so then it worked for this argument
but then threw error on second argument recall the
propvarPtr.contents.pwszVal.address():
ctypes.jschar.ptr.ptr(ctypes.UInt64("0x20fdb3b4")),
So then I just ended up setting both arguments of SHStrDup to
ctypes.voidptr_t and it worked. Don't know why but it worked. And
propvarPtr.contents.pwszVal is definitely getting populated, because
when I console.log it it shows: "propvarPtr.contents.pwszVal" CData {
contents: "C" }.
So the final SHStrDup defintion looked like this:
/* http://msdn.microsoft.com/en-us/library/windows/desktop/bb759924%28v=vs.85%29.aspx
* HRESULT SHStrDup(
* __in_ LPCTSTR pszSource,
* __out_ LPTSTR *ppwsz
* );
*/
var SHStrDup = shlwapi.declare('SHStrDupW', ctypes.winapi_abi, ctypes.long, // HRESULT
ctypes.voidptr_t, // LPCTSTR // should be ctypes.jschar.ptr OR ctypes.char.ptr // im trying to pass PCWSTR here, which is `ctypes.jschar.array()('blah blah').address()`
ctypes.voidptr_t // LPTSTR // should be ctypes.jschar.ptr OR ctypes.char.ptr // im trying to pass address to struct_PROPVARIANT.pwszVal which is new ctypes.PointerType(ctypes.jschar)
);
So now all that is passing and I end up back in IPropertyStore_SetValue in this if:
var rez = InitPropVariantFromString(pszValue, v.address());
if (rez) {
console.info('pps.SetValue', pps.SetValue);
pps.SetValue(pkey, v);
} else {
throw new Error('failed InitPropVariantFromString');
}
Now rez is true, so then it now tries pps.SetValue and this is where it goes kaput and I can't figure out how to fix it. :(
I searched MSDN and thought to create my own SetValue but I can't find any sourcecode for it. It's not in a DLL, its like InitPropVariantFromString, it's in a header file, but I can't find it. :( If you can please just show me htat C++ code I'll take it from there :)
解决方案 Solved, I had to use VTBL: https://github.com/Noitidart/_scratchpad/blob/master/IPropertyStore%20COM%20jsctypes.js
The order of the defintions in the Vtbl matter big time. So make sure its correct if you want to do something with Vtbls
var IPropertyStoreVtbl = new ctypes.StructType('IPropertyStoreVtbl');
var IPropertyStore = new ctypes.StructType('IPropertyStore', [{
'lpVtbl': IPropertyStoreVtbl.ptr
}]);
this.IPropertyStorePtr = new ctypes.PointerType(IPropertyStore);
IPropertyStoreVtbl.define(
[{ //start inherit from IUnknown
'QueryInterface': ctypes.FunctionType(ctypes.stdcall_abi,
this.HRESULT, [
IPropertyStore.ptr,
this.REFIID, // riid
this.VOIDPTR // **ppvObject
]).ptr
}, {
'AddRef': ctypes.FunctionType(ctypes.stdcall_abi,
this.ULONG, [
IPropertyStore.ptr
]).ptr
}, {
'Release': ctypes.FunctionType(ctypes.stdcall_abi,
this.ULONG, [
IPropertyStore.ptr
]).ptr
}, { //end inherit from IUnknown //start IPropertyStore
'GetCount': ctypes.FunctionType(ctypes.stdcall_abi,
this.HRESULT, [
IPropertyStore.ptr,
this.DWORD.ptr // *cProps
]).ptr
}, {
'GetAt': ctypes.FunctionType(ctypes.stdcall_abi,
this.HRESULT, [
IPropertyStore.ptr,
this.DWORD, // iProp
this.PROPERTYKEY.ptr //*pkey
]).ptr
}, {
'GetValue': ctypes.FunctionType(ctypes.stdcall_abi,
this.HRESULT, [
IPropertyStore.ptr,
this.REFPROPERTYKEY, // key
this.PROPVARIANT.ptr // *pv
]).ptr
}, {
'SetValue': ctypes.FunctionType(ctypes.stdcall_abi,
this.HRESULT, [
IPropertyStore.ptr,
this.REFPROPERTYKEY, // key
this.REFPROPVARIANT // propvar
]).ptr
}, {
'Commit': ctypes.FunctionType(ctypes.stdcall_abi,
this.HRESULT, [
IPropertyStore.ptr
]).ptr
}]
);
Then to get the IPropertyStore of a window:
var ppsPtr = new ostypes.IPropertyStorePtr();
var hr_SHGetPropertyStoreForWindow = _dec('SHGetPropertyStoreForWindow')(cHwnd, IID_IPropertyStore.address(), ppsPtr.address());
checkHRESULT(hr_SHGetPropertyStoreForWindow, 'SHGetPropertyStoreForWindow');
var pps = ppsPtr.contents.lpVtbl.contents;
now you can use IPropertyStore :: SetValue and IPropertyStore :: Release but make sure to pass the ppsPtr as first argument to them then the remaining arguments are what you would expect: var hr = pps.SetValue(ppsPtr, firstArgOf_SetValue, secondArgOf_SetValue)
EDIT:
adding copy paste runnable script from scratchpad.
Copy and paste this: http://pastebin.mozilla.org/8429999
this will do the equivalent of this XPCOM:
var win = Services.wm.getMostRecentWindow(null);
Cc["@mozilla.org/windows-taskbar;1"].getService(Ci.nsIWinTaskbar).setGroupIdForWindow(win, 'Contoso.Scratch')
Yes its long but the good thing about it is, there is no XPCOM to set RelaunchCommand and RelaunchIconResource etc. Thats why js-ctypes is needed.
这篇关于SetValue和Release不是函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
