5 仿真币
我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据:, G; f" k9 R. G7 n8 A! F2 U8 L. v
Name = (WCHAR *) L"Poke";+ S; z" Z0 D3 j5 f3 X
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hr = m_pDisp->GetIDsOfNames ($ I" o( W _+ G6 F
IID_NULL, // reserved
# O, ~* [& R0 E& U3 k3 l" V &Name, // Array of names to get IDs for
; Q- @8 n, y; p( e9 Y: V- m" J 1, // # of names in the array# ~ e( D! p4 C: \
LOCALE_SYSTEM_DEFAULT, // System locale0 r! Z% J1 ~6 B( u2 T9 A
&pokeID); // Array of IDs to fill on output
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if (hr)( I" F8 e8 F+ ?* T, b
{ G9 V( X3 V+ W- Z
MessageBox ("Get Poke Unsuccessful");
) F1 }' l( g6 G3 Q6 h return;# K) o* f$ n4 }
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2 h* K1 D( U5 u! B /**************************传递数据给extend**************************************/% s5 r5 r' U+ U) o9 I# l8 F
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 w% v' `; d( N0 J$ A
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valueStr = SysAllocString((WCHAR *) L"1232");
2 v8 [; K N* ?, {, N( p' | VariantInit(&pokeVariant[0]);
* r# P; @5 J: L; w" B3 l pokeVariant[0].vt = VT_BSTR;5 O9 n% p" R6 ]6 _7 f% ?# t
pokeVariant[0].bstrVal = valueStr;. x8 G* H: E2 T: G% `4 V; l
$ J* k4 i) P' k S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& i. L; ?, X: ]& f% f6 i5 M
VariantInit(&pokeVariant[1]); / w( O; z5 ?# H. M
pokeVariant[1].vt = VT_BSTR;
! z) S+ q: y" H; ~3 z pokeVariant[1].bstrVal = itemStr;
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6 r- x' o# @) _8 V& h topicStr = SysAllocString((WCHAR *) L"system");
* I& W" h& ~# D6 B$ Q6 a- F# a VariantInit(&pokeVariant[2]); + }2 x5 m7 @& r5 p
pokeVariant[2].vt = VT_BSTR;
4 C3 N% E3 l( c pokeVariant[2].bstrVal = topicStr;
' T: I$ f$ F: Q0 H9 s
- T5 l5 E6 F. n) P; ]9 a# B/ g E5 W // Set the DISPPARAMS structure that holds the variant.+ {+ ^( V+ {% l9 \1 b
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dp.rgvarg = pokeVariant;
5 x3 r, o: ^6 A5 T dp.cArgs = 3;
: H4 ^6 i) J; a* X3 ? dp.rgdispidNamedArgs = NULL;8 D. l* N" \% w
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke( {) \& `5 n9 [1 b' x3 Y* _ a
pokeID,! b6 T9 a/ L1 Z, Z- H
IID_NULL,5 O6 Y$ I& E1 y9 q
LOCALE_SYSTEM_DEFAULT,
3 g9 t) S9 _( y) N' S; [ DISPATCH_METHOD,1 I+ Y4 J5 s1 Y8 a
&dp,: B& c( e% M( t
NULL,/ ] ]1 w7 {% e
&ei,
' P" M; v z" w &uiErr);8 F4 k: f w" o/ W7 }
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SysFreeString(topicStr);
( V$ _ F ^& t+ Z; n- Y SysFreeString(itemStr);
9 q6 r3 w# N+ F) k) B SysFreeString(valueStr);) Q. I6 B6 p h' X4 Z
% _& N) L2 ?; Z2 J5 X' B
现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据???
& H0 q" X7 w2 `2 d: [: b: {2 a7 | 此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????! _: t2 u' ~* v _. K
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7 ^! U4 L0 E# C6 g7 w; x, z 2.这是request的程序" o9 G0 Z: k. ]& m: s1 E; R
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's1 E; Z% A, X; ]
// type flag to indicate the fact that this variant holds a BSTR. Place the
1 T/ b9 }% L' d4 ?0 ^8 ? // BSTR into the variant structure.
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?/ O5 P$ E- k6 }6 `. S1 \1 H4 k requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, T% q2 a" B6 F6 h0 d, e2 l
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
/ e5 A' b8 ]4 R VariantInit(&requestVariant[0]);
( m: ~. P5 j3 H: t requestVariant[0].vt = VT_BSTR;
* ^# A+ ^) v$ x" X requestVariant[0].bstrVal = itemStr;: T% c; ]! J& z6 e/ e) T* _! }* r
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topicStr = SysAllocString((WCHAR *) L"system");
. T) R; n- C! s' E( c D* J/ x VariantInit(&requestVariant[1]); % u2 n/ J5 p* f; p3 U0 ^5 u2 ]
requestVariant[1].vt = VT_BSTR;
7 u5 ?: [) h* y" L9 G: B: z( O requestVariant[1].bstrVal = topicStr;, V* y' n* ^$ E
; m5 C6 n: @4 [/ L) l {
// Set the DISPPARAMS structure that holds the variant.
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+ M0 h$ c2 d: q3 V: a dp2.rgvarg = requestVariant;* o( g. M* N* W/ P4 ~3 ~+ g
dp2.cArgs = 2;& a1 y% I! f$ b* ^- j' s/ j4 z- Z
dp2.rgdispidNamedArgs = NULL;
: s2 W$ t7 F4 Z0 C dp2.cNamedArgs = 0;/ x* r% u. u! `
( u$ _9 R" R6 X+ J2 F var.vt = VT_EMPTY;8 \. I6 _0 p J$ t( p
. M, B+ b* I. C1 r$ [8 z' S // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
5 M4 B7 }3 y8 i; k2 \ requestID,
% V k* a, S# a0 ?6 ]% [ IID_NULL,3 a3 l) g/ G- B& i% a- r' [( l0 o
LOCALE_SYSTEM_DEFAULT,
& T0 H e. n U# S) | DISPATCH_METHOD,+ l. L0 w* C- w8 ]* F* c z; E
&dp2,
" v z! q* _5 J" F9 M &var,2 b( c$ ^1 l" p7 w1 L
&ei,- s9 ?7 S) ?1 ^+ x: k; f
&uiErr);3 O W& m3 ~* a% b8 ^3 {& j& P
+ y s% c) T2 j, [2 r7 u& S SysFreeString(topicStr);# D: y- d8 p0 b5 X. r- u" @- ? a
SysFreeString(itemStr);' o/ S" A+ c6 X/ B& }8 z6 h! E
请问该程序是获得extend里面的哪个值?: f; @2 U5 A, _3 m1 |+ @! ?$ r# q
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????
我来回答