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:: D( ]" Z; i8 I1 N! Q6 o2 Z
Name = (WCHAR *) L"Poke";1 w2 ~! ?5 Z4 q7 O7 L
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hr = m_pDisp->GetIDsOfNames ( 4 X. p8 D' o q/ P- B) q IID_NULL, // reserved2 M2 d- Y6 `1 V1 h5 I0 [
&Name, // Array of names to get IDs for, A% n5 r, h e2 a; p5 N% }0 j+ z
1, // # of names in the array. }' U. S Z0 M } C+ S
LOCALE_SYSTEM_DEFAULT, // System locale A; b9 z- Z+ O9 @$ j
&pokeID); // Array of IDs to fill on output6 x) x5 d) s+ g. q" n
- l. j2 o: L7 ^( ~1 s$ V( b if (hr)& C+ V9 A4 I7 X+ ]0 s( ~2 `; v
{ 0 O' t5 ~: X: o. i MessageBox ("Get Poke Unsuccessful"); + m' V, M+ ~2 @5 y* V return;& A2 j9 U! n8 v$ V
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/**************************传递数据给extend**************************************/. o/ y- l' k6 U Q% x' [* t' G# i( L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' d8 L* _/ O6 M4 ~0 L4 V
7 k( M2 v9 k6 h% x. h2 E) X G- F valueStr = SysAllocString((WCHAR *) L"1232");, |' J. @& j: q
VariantInit(&pokeVariant[0]); / `. U( K, y J! c pokeVariant[0].vt = VT_BSTR;, F: h7 ~" ~ ?
pokeVariant[0].bstrVal = valueStr;' H# E) S& M7 b8 L; b& d1 s' B
% v- L6 s2 i, j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 h) b' c8 z6 {6 }$ y: B/ W VariantInit(&pokeVariant[1]); * o- _$ D+ b; R3 l0 b
pokeVariant[1].vt = VT_BSTR; 9 d: ~3 j) J9 U1 [# l; I- Q pokeVariant[1].bstrVal = itemStr; $ G* i2 A8 _0 p% } ; e3 r- |1 `% Z0 a. m# A topicStr = SysAllocString((WCHAR *) L"system");8 h2 V. Y% _2 y: t2 k
VariantInit(&pokeVariant[2]); ; r* N8 G8 ]- ^' z
pokeVariant[2].vt = VT_BSTR; - c1 f. S( X2 D6 u! Y pokeVariant[2].bstrVal = topicStr;; g% i- S) s/ K4 U
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// Set the DISPPARAMS structure that holds the variant. ' f( R% k8 _1 n5 W1 I/ k- @ 9 q( ^3 L Q+ S1 Z8 z dp.rgvarg = pokeVariant;& F& G$ O, n5 p% R
dp.cArgs = 3; . d) d r/ v7 p+ N/ G; ` dp.rgdispidNamedArgs = NULL;+ Y' G9 W' O9 p$ |0 ], B0 O
dp.cNamedArgs = 0;1 n- I+ ]4 ^" E$ R, \
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// Call IDispatch::Invoke() - i( j% Z; O u- N$ w $ w+ E4 y' w$ `1 K7 F' Z hr = m_pDisp->Invoke( 4 m* X+ t, j* d( \" I pokeID,7 H0 q# z2 L- y K2 L* z
IID_NULL, ( i% ^3 P8 p; ~: B5 m0 ? LOCALE_SYSTEM_DEFAULT, * q X0 B6 B2 u DISPATCH_METHOD,. k2 V8 T' _8 @6 b9 p
&dp,& V+ `0 V# J% }2 E9 m1 d1 A( w
NULL,: |4 u! M1 R1 ]# N, a: B% H9 o
&ei, ; i6 v3 m7 |1 m. N &uiErr); {$ ~6 } y4 L) B c# ~/ d. i2 Q8 v; c) F# X
SysFreeString(topicStr); 0 G/ f+ z9 \4 {" s2 z8 e SysFreeString(itemStr);% e" \2 B t. E+ ]! t9 B) _# J! k
SysFreeString(valueStr); . y# Q9 w+ J3 x1 H& s+ }1 ~. m! Q ; _2 G9 O$ \. t) C$ x* {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???5 [9 }6 z+ A1 Z
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???? 3 Y- U/ A: Z$ p9 P9 ?. M; T7 v' q8 }, G( t2 g& l! o! a4 H$ U
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2.这是request的程序& M7 I) B# n9 N7 {. E
// Request a value from Extend3 q$ G- h( u: N4 y7 d
// & j$ m2 j! {; k" W1 N// Initialize the variant that will hold the BSTR. Set the variant's 5 o" |3 J0 d' c$ F1 q// type flag to indicate the fact that this variant holds a BSTR. Place the 8 C+ U- W/ v5 u, |2 Q$ y" M! P// BSTR into the variant structure. 3 Y& P: W& ?4 g: x$ }; y4 B z! e: z. K" t( Q Z/ T+ u5 t. m
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 ?2 T4 W( e9 Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 S+ o0 b2 p" D" k# U0 }+ A/ K4 m VariantInit(&requestVariant[0]); 3 f( x# W( o* {4 ~
requestVariant[0].vt = VT_BSTR;" I, K! i) n; w# M" k0 `
requestVariant[0].bstrVal = itemStr;8 ` v: B" J' Q8 z8 x5 n
3 K+ Y0 k9 M J2 ?9 ` topicStr = SysAllocString((WCHAR *) L"system"); 8 Z0 H5 i0 W7 x6 [& X VariantInit(&requestVariant[1]); % V2 ~# R+ @# E& i2 q# K) W! ~& Q requestVariant[1].vt = VT_BSTR;0 f4 T9 f! {# i% l0 c9 z' ^8 O
requestVariant[1].bstrVal = topicStr; ( v" v- J5 S+ P# g+ H$ P! P! r7 L) `& ~& o
// Set the DISPPARAMS structure that holds the variant. ' x! J5 n8 I" }& C/ A* H: k9 Z( k' ]# R/ `5 p( k/ ]
dp2.rgvarg = requestVariant; " c9 z# F9 j S& u% J2 Q dp2.cArgs = 2;7 v9 I9 q( W# v4 w$ E' l9 M1 q1 S
dp2.rgdispidNamedArgs = NULL; ) G( x, A$ M. @+ `3 K; d dp2.cNamedArgs = 0;, ?; O# |' M2 B: @( o9 W
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var.vt = VT_EMPTY; * `' B7 l9 t1 @0 U3 T* T- g& y( y2 `3 C, j$ K0 r( p
// Call IDispatch::Invoke() - {; J3 r* Q Q r& F- T; b h' u* x ) m% {+ Z( ~0 ~' A) j- ` hr = m_pDisp->Invoke(0 Q: \* F p5 e( q d/ i. x
requestID, * Z4 W$ b& u& }1 V* b IID_NULL, 2 G% J) y& V/ K3 ]) s0 r LOCALE_SYSTEM_DEFAULT,, K# l; ?, u2 b9 a2 N% U
DISPATCH_METHOD,# w: s' y, V) L: ]% l" J$ N
&dp2, M9 p0 P0 [; y( q" S/ f- T6 o
&var, ; @$ E- u$ c& d/ q &ei, ) ^7 Y0 z0 X2 X9 w. Q &uiErr); b! R; j7 G: ~7 ?7 c& s1 Z/ O5 F" B; o4 e I0 r
SysFreeString(topicStr); & ]4 b7 w* a0 m SysFreeString(itemStr);2 |* p+ }; R3 F* H0 w
请问该程序是获得extend里面的哪个值?; X! O: ~+ `9 w5 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????