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+ n: g# \4 `) t6 t! U+ A
Name = (WCHAR *) L"Poke";& V7 F. A7 F. C
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hr = m_pDisp->GetIDsOfNames (3 X8 v8 H9 w% Y. ]/ t
IID_NULL, // reserved* T+ V5 F1 g7 k F, l) Q* F
&Name, // Array of names to get IDs for , M) [, Q& y+ Q& ^+ H; [$ E% B 1, // # of names in the array * d7 K) e) D2 H5 a, D- U- E LOCALE_SYSTEM_DEFAULT, // System locale. \+ H3 t% @& d
&pokeID); // Array of IDs to fill on output/ `% V$ e8 h) I# h' w# {8 U; G
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if (hr)$ A& q+ c1 V% d$ x" w3 C$ ~1 O
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MessageBox ("Get Poke Unsuccessful");; v* Y9 R7 {3 d" O. P* P
return;5 N0 m0 k( |3 L% R. o- }
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* h2 h$ i! C2 t. V+ e/**************************传递数据给extend**************************************/* X% A1 e( z8 l( V" Q8 ?
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 ] ~% u' _* Q E5 \5 z
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valueStr = SysAllocString((WCHAR *) L"1232"); , U" e) b8 i% ]- v) a VariantInit(&pokeVariant[0]); 1 ]. s/ {# U- p" x: l: r9 K3 i
pokeVariant[0].vt = VT_BSTR; ) r& }8 v5 |' O8 d7 _& I: v pokeVariant[0].bstrVal = valueStr; - z( t% z( @- \3 h ; m" A9 m" K; D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 l$ |" h9 B; F: Y' a
VariantInit(&pokeVariant[1]); 2 b# A* L* b+ @1 c0 Y
pokeVariant[1].vt = VT_BSTR;9 Z1 w; w, U' `" L. j" N2 F8 @+ @% N' k
pokeVariant[1].bstrVal = itemStr; 4 }6 U; K" r% {3 S( W: { 2 t) C. ?& U" H' m) _ topicStr = SysAllocString((WCHAR *) L"system");# Y3 m; d. m9 _) `. m6 ~/ a7 k
VariantInit(&pokeVariant[2]); 8 V* f. Q \4 C4 c$ D; q2 A
pokeVariant[2].vt = VT_BSTR; ! Z. r I3 \" Z% m pokeVariant[2].bstrVal = topicStr; * W+ H: ~0 m6 a; _ y f/ K. K1 ^( t1 u7 ~7 [6 l b
// Set the DISPPARAMS structure that holds the variant. % o* o4 S& m2 E; m; u: j) x* r/ R9 K) i; U# r6 ~ g$ U
dp.rgvarg = pokeVariant; ( @2 g. x4 n+ f: }7 k b dp.cArgs = 3;' u( \/ U% K& M; ^1 r! J+ q, o1 n
dp.rgdispidNamedArgs = NULL; 8 o1 W" B3 d/ i8 Z3 H) W# Z dp.cNamedArgs = 0;5 {% L, Y/ Y! J, f
) H. q+ o3 d/ N% @# \! R( g, Z p// Call IDispatch::Invoke() _' K; y( c5 z( `( N. ]: Y# s0 }* h+ m- y# B0 d/ k9 Z
hr = m_pDisp->Invoke( / _" H, r% g$ z9 L' y4 S pokeID, ; @9 q/ P( _1 Y0 _' U* A7 \- | IID_NULL,0 G# Y6 ^1 i6 G6 V% q
LOCALE_SYSTEM_DEFAULT, ; |" w; {" [! T" p" ? DISPATCH_METHOD,$ E) l8 @$ x" {9 P% n; Z
&dp, 1 z+ i, W) u9 h' a5 C R" ?5 T NULL, 3 i* P* D* u; c &ei,) {" ?: J, Y& `; G. E6 `7 ^# X
&uiErr);4 r1 @. _7 m0 E
* H! [+ D8 H5 i' q, V l SysFreeString(topicStr);% I4 O( T& Y+ g7 y) p
SysFreeString(itemStr);5 [# P) O. Z, _7 i4 Q$ }
SysFreeString(valueStr); 9 ?, E0 j. i, n m/ n( r1 i+ }; w4 C" G# j4 Y! \+ @( W
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 Z# w3 G; w" I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???? 8 f$ J5 N+ e& | c: _0 w) S4 _& v8 u+ m: r/ ~
# E# l- j4 B0 f. y2 Q5 N6 m/ n+ f2.这是request的程序 B( o1 z; u% R/ b3 S, R Y8 k, ^// Request a value from Extend * f( ]& _' ~0 Y4 G7 G// 3 q( d& _2 [$ T. Q/ F2 J// Initialize the variant that will hold the BSTR. Set the variant's+ J, Y! ~' x5 ^, o' m5 n) _0 c
// type flag to indicate the fact that this variant holds a BSTR. Place the4 Q6 f2 X1 e* U! C
// BSTR into the variant structure. $ P. F3 b1 {1 Y5 U) f . X8 \. _: `1 a& _6 Z+ _3 x6 f5 h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& W, }$ z- X- P+ g: V7 I) x. b# s
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 u: ]9 P/ U/ \" O
VariantInit(&requestVariant[0]); 2 K3 h$ n1 i; K9 k9 v+ T requestVariant[0].vt = VT_BSTR; , J: k9 \+ s$ r U requestVariant[0].bstrVal = itemStr; ) d) H; |: y0 Y5 S% Y% ] v% o8 @: z0 ^( U& f6 x; w& E
topicStr = SysAllocString((WCHAR *) L"system");3 L4 S+ a- n. c9 F
VariantInit(&requestVariant[1]); 4 v: W; r6 }6 D: s2 m
requestVariant[1].vt = VT_BSTR;6 r9 o3 q' s7 k! X
requestVariant[1].bstrVal = topicStr; 6 i* E) f7 v) a# b9 q3 f( L5 c1 Y: O5 Z" C, S( d& I( K+ K) W
// Set the DISPPARAMS structure that holds the variant. 2 C7 q) x; I( X$ o- o6 z( m 7 h8 p1 X3 S2 | u6 o" f7 ?3 a: q v dp2.rgvarg = requestVariant;: O) ^* L/ o6 @7 O3 e! C
dp2.cArgs = 2;! p) r$ b9 E" @9 h. G7 p
dp2.rgdispidNamedArgs = NULL; # v0 q! w1 e) r8 X dp2.cNamedArgs = 0; ! c5 V3 N+ a0 H" B4 ^ 2 @2 c! [- \6 q1 a5 D9 L var.vt = VT_EMPTY;1 ]8 k" h4 I& }4 Q4 {3 |
. ~3 J9 E0 t& a" Y1 L/ v$ y// Call IDispatch::Invoke() & R- D7 X6 y4 b# R' v, e0 I2 {! N . k% |* x9 o4 c! K- Y hr = m_pDisp->Invoke(# D/ r7 ]1 u) |3 ^6 }6 E
requestID,( T/ j) U) m8 I
IID_NULL,8 X2 t& u4 j2 H A0 s* d" V
LOCALE_SYSTEM_DEFAULT, & Y+ q5 y D D, [- V2 o" Y( ~- M DISPATCH_METHOD,5 f9 E* [& s/ _! B* D4 h4 P. ^1 `
&dp2, ' ~4 d* W" c- c7 ] &var,3 C6 V/ U$ I' G4 h+ m. C6 `3 A$ x4 R
&ei, 9 Y3 [; u( \& H) n8 Z* l &uiErr);! [& L2 l; `# ~
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SysFreeString(topicStr);3 t) o4 B! R) `
SysFreeString(itemStr); $ K' k# j6 Z0 d2 Q$ a2 v' p$ ?请问该程序是获得extend里面的哪个值? . g9 D- ?" N( W) ~% o9 H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????