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:6 Z0 e4 u6 n+ u5 l" t
Name = (WCHAR *) L"Poke";$ a1 B+ j) g! o3 N, A' r
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hr = m_pDisp->GetIDsOfNames ( * c' t+ v0 q$ y) a) [/ ]: t IID_NULL, // reserved3 o. H% z1 O+ b% r! u
&Name, // Array of names to get IDs for5 K" w) C) m8 t. p$ A+ j8 d
1, // # of names in the array 3 G/ ^5 C _+ f LOCALE_SYSTEM_DEFAULT, // System locale ( c/ ~, K/ y3 i* Z( B8 A; v &pokeID); // Array of IDs to fill on output , Y4 j) S) Q6 Z+ T c' Y5 k0 G0 }3 ^4 p1 ? ?
if (hr)& J4 E% ?( I0 ]) j. d9 M0 |4 N
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MessageBox ("Get Poke Unsuccessful");9 e# c) _. W7 e/ f. W( J$ z6 i7 T& l
return;5 @3 x$ ~+ | f; R, w A+ n- Q
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9 R( h) R# p7 W) H \8 Q6 F( M/**************************传递数据给extend**************************************/6 s @( ~* L( A$ F' T% C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 C' G4 i% @& j
) w/ v- E9 v( w, `; z! m7 l5 ] valueStr = SysAllocString((WCHAR *) L"1232");2 |# J: I" W( N$ b
VariantInit(&pokeVariant[0]); $ r# m8 ?% h; B8 R6 _0 W
pokeVariant[0].vt = VT_BSTR;2 E5 E' y/ P0 V3 q* `3 D Q
pokeVariant[0].bstrVal = valueStr; 9 N5 E4 @) J/ S: p& }* V. R% a$ x + t; S# K! w5 X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / C0 J0 `- T0 s1 r1 h( y VariantInit(&pokeVariant[1]); 2 `- }: A- j2 V+ c) z1 j9 f; o
pokeVariant[1].vt = VT_BSTR;4 r& R4 V p* F) V& {- c/ u- q5 N
pokeVariant[1].bstrVal = itemStr; ! B+ H* f$ z( G u" C' o3 p! ] % q2 d: O/ i% g, |! S8 k5 J7 e topicStr = SysAllocString((WCHAR *) L"system");$ _1 ?( e/ {, I+ K5 B
VariantInit(&pokeVariant[2]); 2 F, A+ f5 l' w |$ c7 x8 n0 \ pokeVariant[2].vt = VT_BSTR;5 i. J, h5 b1 ]/ S8 g7 o9 ? x
pokeVariant[2].bstrVal = topicStr; 1 q/ v3 z: s0 }+ M. Y7 x # L; @. ?9 u( ~) J- l+ o4 I3 S// Set the DISPPARAMS structure that holds the variant.9 Q) g# u8 S s$ t
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dp.rgvarg = pokeVariant; 3 D- A1 v5 F; |8 g# g6 u1 q& C6 S dp.cArgs = 3;( k4 @" c1 |3 R' [4 k
dp.rgdispidNamedArgs = NULL; ! W/ e) F+ e6 X' `5 D0 S dp.cNamedArgs = 0;" q X2 ^, a8 i3 ` A X
0 F4 s/ Y! I8 [0 A5 @- f$ x// Call IDispatch::Invoke() 9 c* N, f& L5 Z ! S2 J% R! k$ x hr = m_pDisp->Invoke( 2 {8 n5 e/ _( T5 X* g pokeID, v! I& Q9 C$ h: t
IID_NULL,1 E: ~4 R" ?2 S+ e1 ^
LOCALE_SYSTEM_DEFAULT, R% y+ d4 r, y& E- g: }" `8 R DISPATCH_METHOD,; u( H' @ D) L5 C8 P
&dp, ) ~% G: S! c4 K( H$ y NULL,/ x+ u+ a% Y8 c
&ei, . t! j) i8 e6 @# n1 Y5 M% ]2 H &uiErr);$ F6 z, i6 A3 e0 c1 a
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SysFreeString(topicStr); ( i( X0 L7 M# ?$ k5 Y SysFreeString(itemStr);& v' e; e5 i$ \# U
SysFreeString(valueStr);2 f/ L' C2 `: w! q) S( D E1 ?
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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???* t' ?7 G: T1 }% K' D& m$ U; }
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???? 5 q! Z4 A% ], D9 Y4 G + {# A9 u0 _. a) i4 E. q) ^4 n 2 ^( w0 j7 Y* o0 t7 @8 g2.这是request的程序 " c' d. F( @+ v* B6 V! m// Request a value from Extend ( Z. A+ c4 D) O( x7 i//7 y/ ^9 s4 W# k. @8 K. o A
// Initialize the variant that will hold the BSTR. Set the variant's 1 H5 G/ B4 T& `5 P1 [4 P2 R// type flag to indicate the fact that this variant holds a BSTR. Place the0 \! d$ X \0 V( f+ o/ ~, A' C! ]
// BSTR into the variant structure. ' P, a+ t d$ d5 a) I : L( o5 p* f; q7 T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : j9 a4 |' P# n% F2 r( f H' ]' j1 @ 3 z# y4 W7 t2 A6 s+ g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! T5 F9 H8 A) G3 L& u/ _8 h
VariantInit(&requestVariant[0]); " S0 ?! y, j" x requestVariant[0].vt = VT_BSTR;* B. \4 {! @9 a) {6 g, t% g$ Y
requestVariant[0].bstrVal = itemStr; 1 a5 ]$ u8 \: _8 X" u. w1 P V6 ?5 v9 B9 c) X, \# V5 C
topicStr = SysAllocString((WCHAR *) L"system"); / V7 O6 D3 \% x6 O: c2 y3 d5 v VariantInit(&requestVariant[1]); # K. j& A8 \# p( U7 F5 K2 U. ? requestVariant[1].vt = VT_BSTR; ) @- h+ f& u' U. p3 B requestVariant[1].bstrVal = topicStr; " g& Y/ @5 \- g ^9 z" v/ C' c. [$ V5 K- i* L
// Set the DISPPARAMS structure that holds the variant./ L$ M; w. G! h9 P: B/ d7 e; H5 j2 q
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dp2.rgvarg = requestVariant;7 n. c7 v7 j. p, W7 W
dp2.cArgs = 2;, Y3 u/ b1 m; M! ]
dp2.rgdispidNamedArgs = NULL; ! ?9 G5 S2 V( w2 W dp2.cNamedArgs = 0;( H4 h3 z$ f" h3 `
' i- l. w* w) N8 J$ @' [ var.vt = VT_EMPTY; % s$ @5 h8 h( ?7 ^/ f7 O( A7 K% I L! E - `, I8 X7 u$ n% j' b// Call IDispatch::Invoke() Z0 e# z) ?# b" z7 | 1 ^' m7 g6 J6 O1 v$ _4 J7 G/ b hr = m_pDisp->Invoke(" p' q% v, p: _% @
requestID,6 N; V# y9 t. e* c& }+ A" Y
IID_NULL, n0 q$ z4 S+ J' h0 y2 H5 K9 t9 o LOCALE_SYSTEM_DEFAULT, % Q: H+ ?1 J- [$ `. x0 h# t. j DISPATCH_METHOD, 7 a, x0 e {7 R# I: t. c7 A0 ~9 a6 Q &dp2, ( w, r) ~2 ?2 J% ], o &var,) Y$ l M8 B3 g/ n
&ei,: q' W ^' b9 P C! A: [& x
&uiErr); ( }/ C, m1 U! z2 K) E d 1 i Y0 `! n1 r& i" o: {# P SysFreeString(topicStr);+ S8 p6 C. @; u5 }2 J6 f% T: w
SysFreeString(itemStr); . z8 X1 Y9 ^; d/ S请问该程序是获得extend里面的哪个值?/ X; {5 }; L7 R* ?
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????