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 E) T4 A1 s7 N8 O' q0 G% {6 LName = (WCHAR *) L"Poke";& O& N. q" J. V. ^. W5 {4 J/ H! w: B
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hr = m_pDisp->GetIDsOfNames ( 1 g* K- I' I5 i* |/ L IID_NULL, // reserved- V, ^2 T& h1 ]7 A7 L9 ~
&Name, // Array of names to get IDs for$ u1 r4 V) W) D6 D
1, // # of names in the array, i& w( y7 y* \$ ^7 w
LOCALE_SYSTEM_DEFAULT, // System locale 4 ] N2 |) Z5 o &pokeID); // Array of IDs to fill on output . J3 M( V$ n6 h! r, D' @4 w+ m: A * E& l: V h1 r$ O5 C' ~ if (hr) Q& D( b8 x' O
{ 4 N+ s# ]# D% T MessageBox ("Get Poke Unsuccessful"); ! E4 G: j2 w0 y$ F8 ~ return;% z' M* h) ^# X1 e/ o+ ^: r9 G: N& ^
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/**************************传递数据给extend**************************************/9 k( B' e8 D7 ], W5 z/ F$ A, b# p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % q1 J8 ?( F1 J7 |( o 4 M8 ]% P3 C7 Q& o7 Q+ Y: I u$ H
valueStr = SysAllocString((WCHAR *) L"1232"); 3 l l* v+ L6 T% F8 F. } VariantInit(&pokeVariant[0]); 6 P/ l0 @ ]( R6 c8 \. j
pokeVariant[0].vt = VT_BSTR; ' W! r& n! ]4 ~3 O b/ a pokeVariant[0].bstrVal = valueStr; , X/ `$ q6 Y, ~ Y- d- C9 n& x' m3 L9 N5 A+ Y+ l7 A
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, f+ K, o! G9 w( i
VariantInit(&pokeVariant[1]); ! t9 l. B) _1 T; W
pokeVariant[1].vt = VT_BSTR;1 s/ G1 H. E# L* y; ^$ e) Z& z
pokeVariant[1].bstrVal = itemStr;5 V0 O; y. P3 Y% ^* J o- ~; b
! q) s! R1 v" A9 y D) z' x topicStr = SysAllocString((WCHAR *) L"system");% ]5 ? Q0 {; X4 R: t
VariantInit(&pokeVariant[2]); . r9 J3 V4 o0 {6 w0 G; j* B
pokeVariant[2].vt = VT_BSTR; " [* ?5 r. V2 L# u3 O3 [; R: w& I" o pokeVariant[2].bstrVal = topicStr;. [% h9 y# J- ?1 t- p9 D0 v
! l; M) W% N4 D% ?// Set the DISPPARAMS structure that holds the variant. 5 B) @4 m, }- W# k0 }& m1 q# ^/ i5 |; n4 P5 r
dp.rgvarg = pokeVariant;% E* U$ `7 v8 d6 t
dp.cArgs = 3; 3 `* ^3 K$ h p: U1 D; C( @ dp.rgdispidNamedArgs = NULL;. b3 @( t9 @/ L7 m
dp.cNamedArgs = 0;, r2 G) c$ M- u6 j z
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// Call IDispatch::Invoke() ~# g- l0 g" z, B- q3 z0 V" j5 F
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hr = m_pDisp->Invoke( `: L- u7 u9 b' g+ t
pokeID, : k" F+ }) U F IID_NULL, 6 @0 k: o/ v5 \: L- o LOCALE_SYSTEM_DEFAULT,8 j1 p5 [9 A$ w+ w
DISPATCH_METHOD, ( y/ ]! R. A% v' H! N3 g &dp, * s3 ^( y3 N4 B/ g! q NULL,! ]/ E: y4 ~( [$ F
&ei, 5 Z" H0 K6 s6 n5 t &uiErr);/ O9 X) Z, A! B' F
" a( P) [# S( D8 l) y SysFreeString(topicStr);0 c* F1 D" s' |: Y5 i
SysFreeString(itemStr);6 K$ a9 M& z0 U, `
SysFreeString(valueStr);: g! `. c& F6 N8 d' s) E
0 S# `/ ^7 p5 [; p- y* A7 l) W& D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???2 P% h* k1 y0 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???? $ ?9 w* s4 J* m8 G+ D 7 c1 u3 l' d3 i- H6 T& G. A$ z G1 k2 s
2.这是request的程序 4 ?+ y& {" V" m: W! E4 ~# x1 T// Request a value from Extend* ~- W: A; m, b9 @
// 9 _9 B- O, r, ]( u% q// Initialize the variant that will hold the BSTR. Set the variant's # h& V5 O1 r7 m9 q0 ?- `; k9 M1 E// type flag to indicate the fact that this variant holds a BSTR. Place the: ~2 ]' {" K; Q0 U1 f
// BSTR into the variant structure. 3 V5 B R! h$ B& v" L @ 2 L, l4 H0 J4 i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + |- `3 z V+ ?$ P% p 6 r2 \ [6 o) X- Z3 Q% S- C* o+ l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . K' a: m( k) H8 Z+ C) u VariantInit(&requestVariant[0]); ' X% V+ x" Z$ Y1 |/ o1 M5 _& S& M0 k requestVariant[0].vt = VT_BSTR;$ x2 r) P6 o( g0 |; z
requestVariant[0].bstrVal = itemStr; b% j- t N- I- `4 s4 I
I- r) h) D! \% L topicStr = SysAllocString((WCHAR *) L"system"); * U3 k/ S" ^/ r! m! p, m VariantInit(&requestVariant[1]); - V! r1 A" u/ C+ U# f! Y% Y
requestVariant[1].vt = VT_BSTR;8 O: `9 H, I s- K7 ^# P4 y
requestVariant[1].bstrVal = topicStr; ! P# a9 `! e0 k9 U& o# J+ Z& J$ O2 f, ]: Y# \0 a3 U
// Set the DISPPARAMS structure that holds the variant.2 ]# E6 ~' h6 J' r# A' o p% {5 J
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dp2.rgvarg = requestVariant;' R6 p% k# |: i9 g: ?- K
dp2.cArgs = 2;6 ?" c8 x# p3 \* G
dp2.rgdispidNamedArgs = NULL; Z8 x7 `; q2 i
dp2.cNamedArgs = 0; 5 _ a. J5 h# ^" J+ I% T/ e% q( z( h1 Y
var.vt = VT_EMPTY;# L" Z+ J/ N/ l) k
: n( ]+ j% e+ Q// Call IDispatch::Invoke()$ c5 l' i- F' w# }+ A$ x: b9 ]5 ]9 X
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hr = m_pDisp->Invoke( - ^0 ^$ F, }+ \2 B" M! g9 ^7 w requestID,3 k4 H$ a+ V5 j& g
IID_NULL, 9 R" ]$ q8 S! q, j; D LOCALE_SYSTEM_DEFAULT, ! x$ ?, \0 Y, q DISPATCH_METHOD,& x: t) G4 \0 W, i
&dp2, 8 s, [5 m8 `2 T1 g/ N &var, 7 w' }% U- u! H. D# O &ei, ' {# i, M% A/ Z. i7 t8 o. G &uiErr); 2 j$ s c. D. d, v0 z- }! ^2 H 8 I" \( d, x4 P) [4 l! O9 Q% p7 P/ i SysFreeString(topicStr);% Z F7 B( \$ o" C+ d, K* V
SysFreeString(itemStr); : r# A* s/ ]5 v: S请问该程序是获得extend里面的哪个值? 8 T8 F; k- N& C* i$ F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????