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: 5 W2 z) Z6 r/ S6 Z3 a" n3 m, yName = (WCHAR *) L"Poke";% E T U/ u3 w) N+ U
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hr = m_pDisp->GetIDsOfNames (1 V Q; m5 Q' k2 u% ?$ |$ D
IID_NULL, // reserved. [ B) |! g; q
&Name, // Array of names to get IDs for# K5 k* @: L* ~8 A" d
1, // # of names in the array ! ^/ E9 a, p+ }4 r LOCALE_SYSTEM_DEFAULT, // System locale) E* J& i+ e+ ]% N
&pokeID); // Array of IDs to fill on output 5 E0 t s5 u4 A) O# }& A; x" \ : b+ n1 @5 Y1 @+ D if (hr)+ J& f5 S% q4 u9 X1 T7 S
{ e( M% D _! p" K2 n. x2 J MessageBox ("Get Poke Unsuccessful");. u- m* c, p) K ~5 {, ?2 d
return;- z3 V* w6 C+ M' l `# w( L) i
}+ ^+ {, y7 j. m+ v6 |5 I; C: Y
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/**************************传递数据给extend**************************************/6 E1 @+ p0 A' [& z, G! |3 W+ n" ~0 P
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; C* g7 ~# t! }1 D( E6 s5 B! Z
) ?. f% P* D _4 n* u- e valueStr = SysAllocString((WCHAR *) L"1232");; M# j6 T7 p" V' K, O5 J, `
VariantInit(&pokeVariant[0]); 8 I, r9 _) R/ E" t& Y
pokeVariant[0].vt = VT_BSTR; 6 V9 L* `! X9 F' i" | pokeVariant[0].bstrVal = valueStr; ! ]5 x% B0 V5 c- c7 y) K$ y! f2 u% u T6 |( b2 f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 j8 X. D) w O" v+ `
VariantInit(&pokeVariant[1]); " l; y# W% h. Q+ J: d: |) n
pokeVariant[1].vt = VT_BSTR; 3 e& z2 T1 V) Q( e6 A$ | pokeVariant[1].bstrVal = itemStr;# F% b" f$ v; t; ]! a; u
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topicStr = SysAllocString((WCHAR *) L"system");( D* e _3 F" B$ a6 |3 i
VariantInit(&pokeVariant[2]); ; f5 T4 D5 {3 a# ~/ z& f pokeVariant[2].vt = VT_BSTR;9 T2 |' a2 ]* v. ^" z
pokeVariant[2].bstrVal = topicStr; 4 T; |- X+ r0 H2 | r( n3 N ?7 y: H5 ^: Y$ B2 Z" p- |+ {
// Set the DISPPARAMS structure that holds the variant.0 [: j/ M8 g$ F0 B
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dp.rgvarg = pokeVariant;$ C* B! r" P" L
dp.cArgs = 3; ! R9 T9 b2 O8 b$ P dp.rgdispidNamedArgs = NULL; 8 A* ]! M1 L: p/ ]& w- i: y dp.cNamedArgs = 0; ' W3 L) h0 O2 | # r7 O) I6 _2 q1 z3 o2 } h// Call IDispatch::Invoke() 5 O' D& U$ N6 U ' i1 i- G4 P9 h hr = m_pDisp->Invoke( 7 i- q$ U7 k5 X5 v0 [ pokeID, * J: k9 l0 a3 S4 v9 b IID_NULL, . y' f8 a; A# A9 L6 J5 c' i LOCALE_SYSTEM_DEFAULT,/ u9 u" \6 {% P
DISPATCH_METHOD,: Z) P3 I& q6 W# }. p
&dp,+ p' K0 C6 o7 h* J7 l2 o' W
NULL,9 V' J; i4 _- ]
&ei, q% K# U2 F+ U* h: Q1 J f &uiErr); ) D Y$ w, \9 F- z9 g' k& y 9 f9 p! W n4 p& h0 }; J SysFreeString(topicStr);6 y o+ J! L4 V8 a+ d7 x- J
SysFreeString(itemStr); ! b" Y' a0 w; }( K: j1 G% N. { SysFreeString(valueStr); - w3 s3 s# [" F/ D1 g* _8 f6 r/ P% g5 u
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???! e; t) T/ Z* H% W$ T3 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???? # g2 O2 F3 M& B4 \) Z( ^# V+ w( o% @8 R
" [2 k& r' z5 g: y# _2.这是request的程序5 R% B9 o# P" d
// Request a value from Extend, `# s. S3 v, ^
// & S" E) Y0 j$ z4 s// Initialize the variant that will hold the BSTR. Set the variant's / ~' o7 b1 o0 g2 c# R6 [% B4 L// type flag to indicate the fact that this variant holds a BSTR. Place the& s- }# p+ L f7 _
// BSTR into the variant structure.- }* P$ Z0 R9 _8 A2 I
5 \& V9 O7 Q4 R- @+ X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) T" R1 h$ q) k [2 e) q5 l o+ X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 V& R; v* ]9 c1 m
VariantInit(&requestVariant[0]); - A, L3 y! [& g' s4 A' m, | requestVariant[0].vt = VT_BSTR;$ ~' B" ~+ E H+ d" ?& p" K$ J
requestVariant[0].bstrVal = itemStr; / M; w# L( L0 |, A# E/ W 3 X4 n# k0 K- O6 {; q% J/ D7 | topicStr = SysAllocString((WCHAR *) L"system");" |; ~; @% \9 O7 C. }7 B
VariantInit(&requestVariant[1]); & T6 B0 y) d+ I o: z
requestVariant[1].vt = VT_BSTR; 8 \1 k* G3 I# H$ k t requestVariant[1].bstrVal = topicStr; $ u$ M& M6 {1 G) s) }3 ^" W3 R5 @
// Set the DISPPARAMS structure that holds the variant. z; Q# |; y2 Z; d+ M4 X* e
# ?- G+ O; v. f% ^ dp2.rgvarg = requestVariant; , v' d. T: c* @' h3 ^8 h+ T dp2.cArgs = 2;9 u, K: [( b9 L H; o) E
dp2.rgdispidNamedArgs = NULL;/ v- Q8 x+ U' ?) B- }7 f1 T2 l/ [
dp2.cNamedArgs = 0;, d' y6 F5 b G
7 P( \* Z( P$ b2 h9 y var.vt = VT_EMPTY;/ F* ]' v. t! ?# C6 a, G& G9 P, a
. Q' x+ G, q" U% c5 H7 Y// Call IDispatch::Invoke() 9 _$ a9 |- a+ C- t# o0 h : {9 r3 B/ s( K, p b9 { hr = m_pDisp->Invoke(( d0 r. w( Z5 i3 N
requestID,: _ K# h( C. K
IID_NULL,; d1 C2 h0 p" _( n: V
LOCALE_SYSTEM_DEFAULT,+ E' y0 z x* g" ~1 V
DISPATCH_METHOD, % Y3 P, g9 \( D) ?* B8 k &dp2, " s! z, W# ]1 i9 P- d4 T$ l3 k5 @+ u4 F &var, . p9 _: O+ ~2 V% P &ei, # J, Q+ k) O1 s4 A) M/ T# ] &uiErr);# ^$ n* L0 ^& k. a
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SysFreeString(topicStr);3 p5 g% p7 \+ z7 r3 f0 i
SysFreeString(itemStr); - y% @& h2 x4 ?. n8 s( M4 {2 c+ E, }8 {请问该程序是获得extend里面的哪个值? H1 Q2 y7 X; Q( x* T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????