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:* c' y3 t6 {4 H! B/ w' w/ [
Name = (WCHAR *) L"Poke"; $ f, A9 M$ C9 T C( ^ ' y8 Y* B& p% r1 L& T H hr = m_pDisp->GetIDsOfNames (/ [# T* W* e4 e8 ~/ ~ K2 v( [
IID_NULL, // reserved8 h4 y' A" G/ R1 `" _% k
&Name, // Array of names to get IDs for* m7 R; K* [5 r9 u# H& z& o5 u" {
1, // # of names in the array8 ?; v+ k2 c+ O) Z; R8 Y
LOCALE_SYSTEM_DEFAULT, // System locale 8 y" g! _6 m2 W &pokeID); // Array of IDs to fill on output7 f% M* m+ o% N( M8 W- ^
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if (hr) ) D2 l7 c% Q I( g+ d { 3 i; ^( J; c, S6 L3 B- R+ X, @/ i, u4 y% P MessageBox ("Get Poke Unsuccessful");7 d7 D6 F: p! q0 t# o
return;. y( \/ \6 ?# z" U, ?0 _
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/**************************传递数据给extend**************************************/ . W* @5 A# G1 p& U pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& o3 j+ n) w9 j, }8 }0 i
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valueStr = SysAllocString((WCHAR *) L"1232"); # H- J, [; Y8 x6 \& P& k; A9 w' b VariantInit(&pokeVariant[0]); G( i* K- V) N0 h9 ?+ Z) y/ w
pokeVariant[0].vt = VT_BSTR;" w# C/ R8 i( ]% N9 ~+ @
pokeVariant[0].bstrVal = valueStr; / c/ S2 T3 k* w( c" u. i1 a' S+ R; m4 R/ |; k7 [; r6 U. T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 C$ N4 v* P: \+ m& P8 g
VariantInit(&pokeVariant[1]); : G) i. X# Q4 k7 E/ V2 k0 W
pokeVariant[1].vt = VT_BSTR; - x+ u& W& g% z+ d& s" U% l pokeVariant[1].bstrVal = itemStr;0 v! E; {& ]$ N6 {* Z0 T+ l
+ _' u- W4 v; T/ _. u5 N+ o" G topicStr = SysAllocString((WCHAR *) L"system"); " i0 R) |3 H+ J VariantInit(&pokeVariant[2]); . q0 G& |5 f: Z% _9 w& w2 H2 C
pokeVariant[2].vt = VT_BSTR;" v3 n6 @" d" s" A: b- D+ t
pokeVariant[2].bstrVal = topicStr; . k6 I8 y+ q7 h: E U# w- u/ d5 w$ a) i3 R1 S2 ]1 m
// Set the DISPPARAMS structure that holds the variant. 1 Q( l/ S: s- R; F( s$ b! U8 V 0 B x9 t9 `/ {2 { dp.rgvarg = pokeVariant; + {4 g& D8 f2 T1 J dp.cArgs = 3;, I& A- U7 F$ V
dp.rgdispidNamedArgs = NULL;; D3 P A. C4 u, j, L2 \/ @- Z
dp.cNamedArgs = 0; % X& G% c( P+ ^ 5 p# @0 m) t% H// Call IDispatch::Invoke() 6 i' t; _' Y* Q' T( O/ W! h' k: \# C% z- Y2 b6 ~3 @
hr = m_pDisp->Invoke(' R9 S2 ~3 k5 @- G; l( F
pokeID,. C/ X" f9 \7 k- G* r% D
IID_NULL, & A4 V* p/ r' m v9 x LOCALE_SYSTEM_DEFAULT,5 o7 L# L4 l0 s9 o9 E$ N
DISPATCH_METHOD,2 t6 @6 ^; {* y; u. N, n+ p
&dp, q5 V$ J, _2 w2 s+ a' Z
NULL, 6 x g* ?. W/ R; z &ei, ' D. H& Q( N5 e &uiErr); 3 t3 T' C6 ~: B. a; ?4 ?8 [ . z4 T5 ]+ H& `0 h$ Q( s" V* d# b5 s2 u SysFreeString(topicStr); 1 O0 I! ^ m# a SysFreeString(itemStr);; L: z3 u" a6 M% g5 E
SysFreeString(valueStr);; n6 x1 T+ s7 d6 P# A8 l( j( q
4 Y \* l2 Z) j7 h2 v( }( m5 z) R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???) G/ d y2 l2 A1 q4 f* w5 b' q$ x
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????; _. n1 ?$ E$ b
3 D; i, ?2 o, C( ?0 g . ]" p1 q6 p) u: Q9 S5 u# N" Q! n! p2.这是request的程序2 g0 x8 j0 Q$ B% D. J& _6 H" m
// Request a value from Extend# f% w% A2 l* T+ z8 G' X
// 2 C) ?7 o+ Q4 X! }' Y% z// Initialize the variant that will hold the BSTR. Set the variant's! M9 ^ K) G; W/ g1 v
// type flag to indicate the fact that this variant holds a BSTR. Place the1 o) N: @3 o+ Y, v! d! [
// BSTR into the variant structure.4 s' `) u" ]0 ?' A8 A0 ]2 k
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ B( ~, r* W6 U. K* X& L" L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 c) H- j3 y; Z) I VariantInit(&requestVariant[0]); - q2 Q: Q a9 h9 V* m+ d; g requestVariant[0].vt = VT_BSTR;* e8 |: L" O k6 ~
requestVariant[0].bstrVal = itemStr;& A& O: j' J, ^$ o( h2 B$ Z: |2 v
* j# z2 ^% c, Q* h8 \ topicStr = SysAllocString((WCHAR *) L"system");( l2 U8 [0 q6 A) R6 G1 r- x, W
VariantInit(&requestVariant[1]); 0 W7 B- T7 A) V) ]- G
requestVariant[1].vt = VT_BSTR;" r* h3 Z3 O7 @1 y* _
requestVariant[1].bstrVal = topicStr; $ ~( C$ c- q( l" X, C, d4 ] / r( B9 b+ x W3 T7 m, ~9 Y// Set the DISPPARAMS structure that holds the variant. " Z+ s4 v: o% n L9 g `% \8 C3 d" [4 h% }" d" j% e* I8 J% I3 L
dp2.rgvarg = requestVariant; ( V" s" u6 p; G2 D L% c1 F dp2.cArgs = 2; * b; W }) S" ^$ T dp2.rgdispidNamedArgs = NULL; 9 V7 u. f9 J# ^' ]4 h3 X dp2.cNamedArgs = 0;$ {( W+ R! q* N- A: ]; M
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var.vt = VT_EMPTY; # |% H; g0 n- o, {! R% a* Z, T$ b+ w& P
// Call IDispatch::Invoke() 9 v8 t" Y$ v+ B4 n% @) T3 r+ B! B6 I
hr = m_pDisp->Invoke(8 c' Z0 s' B0 T! {; P5 H
requestID,0 l2 \ a( P/ Y: z; u
IID_NULL, , @, t0 f5 ~/ j9 F% t. b' r LOCALE_SYSTEM_DEFAULT,4 h* S: \5 l5 D9 B8 w# x' p9 P" P
DISPATCH_METHOD,$ l5 m ?- |6 l$ Y, j) _
&dp2,8 V# D1 l3 W6 h5 N
&var, : q) U3 F i- k% r. g &ei,* O1 d( r6 ]3 W! C9 Q" o: e! R( j
&uiErr); . Q% r- H$ O- q% g! q. v6 Y" l" p" ?5 B& h
SysFreeString(topicStr);. m! O; c6 Q& R E4 N8 L' W
SysFreeString(itemStr); ' T8 o; w' K- X+ n3 n, T3 ~; ~& e请问该程序是获得extend里面的哪个值? # ?% D$ p0 s" D ~ `) N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????