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: + ]- _9 v, I' L$ k4 K9 c2 r sName = (WCHAR *) L"Poke"; - b8 S: \5 k5 v8 T * L6 j* E1 [) @1 S8 r% p hr = m_pDisp->GetIDsOfNames (: H x7 W1 U$ |; u1 n
IID_NULL, // reserved 6 ?6 L2 e( z# P) h$ H &Name, // Array of names to get IDs for+ ]" g; g& q# }1 v& h. r7 ? ~
1, // # of names in the array7 p, [2 Z; ^; T% r4 n+ u
LOCALE_SYSTEM_DEFAULT, // System locale0 U) V) m Y' Z
&pokeID); // Array of IDs to fill on output3 ]4 K( r2 B1 B$ R
f& A0 A3 y; C3 X if (hr) $ V" C3 s# d* E) ~/ a( \: R {0 ~6 L$ K4 E* |$ H
MessageBox ("Get Poke Unsuccessful"); j' Q$ z/ g2 ` U# i
return; 6 u$ c: U G u8 r2 T9 h7 [ }( \4 [2 p" S* H, i% `( Y0 U& `
0 Q# c, B6 r7 v6 P& R K: n5 Q/**************************传递数据给extend**************************************/4 @& q9 N. f+ K3 E2 p+ R* a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # V" F5 M6 K( Z9 Y ) D2 B0 n& s1 |, e1 @( j! ` valueStr = SysAllocString((WCHAR *) L"1232"); 3 i* W B* g1 T. q7 F! i" s VariantInit(&pokeVariant[0]); / o& I0 }7 d# i/ Q% v s. Z8 m pokeVariant[0].vt = VT_BSTR;, b' N; `8 ^* u+ Q8 [1 t
pokeVariant[0].bstrVal = valueStr;+ i2 u: J" z1 G. R; F g
4 Q* ]9 p; G7 C0 v$ G* ?: u7 j- V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 _, s! r# a- g
VariantInit(&pokeVariant[1]); $ x. A" J6 w# ~- `( i6 @ h" M pokeVariant[1].vt = VT_BSTR; - X# k$ s0 P, s0 ]' L pokeVariant[1].bstrVal = itemStr; ( _( a% h: R; j8 |3 P 8 n* U. y* e# m5 u2 i topicStr = SysAllocString((WCHAR *) L"system");$ O) i, F3 q, B$ d3 ?. A$ K
VariantInit(&pokeVariant[2]); / K# S1 ]- t$ I8 y- d$ U8 a
pokeVariant[2].vt = VT_BSTR;0 ] B' a$ y6 }
pokeVariant[2].bstrVal = topicStr;* p/ \4 _( j2 L: w p/ d
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// Set the DISPPARAMS structure that holds the variant. & \9 I# ?6 D) X& V 4 u+ Q2 e3 f, p. } dp.rgvarg = pokeVariant; , L' `+ q/ I7 w q6 t! h; r' j0 l& T dp.cArgs = 3;& N& h4 A, N% L; Y- {- F0 T K% i5 P
dp.rgdispidNamedArgs = NULL; : O$ w3 M& ~( I6 d: q0 L dp.cNamedArgs = 0; 8 r" Y3 \- c: P: z - z1 [" Q/ C: `, `* I' Y! t% d// Call IDispatch::Invoke()* l+ q. Q" ^2 Y* U T% x
3 f. M1 f& P _. ^1 a hr = m_pDisp->Invoke(; \& T( j+ V4 x( A: i) y# k7 M/ q
pokeID,: Q B- n" Q9 |* w3 _1 S: R' c. j
IID_NULL,1 D, _/ D! ]& o) r
LOCALE_SYSTEM_DEFAULT, / a2 m) j4 s# B* M% L" E DISPATCH_METHOD, # m6 A& Z# c8 n: V: }! F0 `3 M* T &dp, * y: `; ]2 ?. J6 q9 ~ NULL," v2 f# |4 r3 ~4 U
&ei,8 D4 Z3 }* D( v. p
&uiErr); v* m% c9 @. ~% y; ^, }" [ R$ K( r# ?+ L! i8 `" t7 a/ z& f
SysFreeString(topicStr); ) B. [' {5 b1 c4 Z( U+ o SysFreeString(itemStr);; \; d1 D, Y) y- k% W# O! W% t
SysFreeString(valueStr); % k7 {) p' ]! i7 f& Z" e5 K0 z; u! j) N1 Y8 B" J& i' o6 U* C1 p
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??? ) q6 C) O) J7 C7 [3 G/ [( i8 b: 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????, P4 }4 H; X, i" b E% q4 h) p! q
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2.这是request的程序 2 c p" M0 s1 ?# W7 H4 t; H// Request a value from Extend! C, B2 j/ @7 p( l9 h6 n% f
// : u! h2 K* Y' G4 L. @, C// Initialize the variant that will hold the BSTR. Set the variant's 3 V4 t+ P1 [8 z// type flag to indicate the fact that this variant holds a BSTR. Place the5 Z/ ]8 l0 v/ e: i+ |' ~- M l4 ^
// BSTR into the variant structure. 5 G% g5 @/ n' s+ ? & A. n5 H: S" j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, L) U6 C6 U$ A6 W+ A) h. r
N/ f/ ~( ^8 y, o, q' |5 C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 r$ |* B w/ g- q1 {* |) w) m+ x
VariantInit(&requestVariant[0]); 7 R' T0 n; x1 C requestVariant[0].vt = VT_BSTR; 0 D' J6 C, y* Q# i# z4 l6 _ requestVariant[0].bstrVal = itemStr; ]$ G* c6 h- n7 R6 L9 p, h% `
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topicStr = SysAllocString((WCHAR *) L"system"); ' w; ~2 j, P7 n5 `# | VariantInit(&requestVariant[1]); 4 R% n# I9 U7 E6 Q$ h) m9 C* j- n' ^ requestVariant[1].vt = VT_BSTR;! H9 {9 L6 E0 L' {
requestVariant[1].bstrVal = topicStr;! N: G, L: l. {0 Y
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// Set the DISPPARAMS structure that holds the variant.0 [% F! O: d# _5 B
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dp2.rgvarg = requestVariant;2 f: Q) ~% Q" i! C% E
dp2.cArgs = 2; |5 p* i/ @! A0 g; w dp2.rgdispidNamedArgs = NULL; : t/ v; ~+ M2 ^ P- C, \9 v dp2.cNamedArgs = 0;/ _+ M# h/ a3 S2 Y/ B8 \
2 y6 D2 J: p: R6 j( N. S8 \4 P var.vt = VT_EMPTY; . C% M! [ K4 Y0 R- S- n6 o! C4 s" L
// Call IDispatch::Invoke() - R% p, I9 v' S+ }) _1 |, z% S0 K9 {7 s
hr = m_pDisp->Invoke( 8 s2 {8 I; m$ y. q, D6 f requestID, / {+ ?# p7 D4 O IID_NULL, ! K! L7 O+ [2 j8 V LOCALE_SYSTEM_DEFAULT,( l% @ V+ z' [! R* K5 T. L- d
DISPATCH_METHOD,2 ^6 c5 M' B3 F7 K/ y. n
&dp2,7 e: ]2 c3 E3 m) e
&var,5 z) |) ^7 p1 A- ]3 S1 Q/ ^
&ei,% ]9 E5 H+ J, n; k
&uiErr); 4 L2 Z0 p7 g$ q. F" {/ R2 Z% a0 I1 L4 P9 W
SysFreeString(topicStr); 0 L3 g; p- T2 G. \; w SysFreeString(itemStr); 1 Z( U; a- g, x' L& t请问该程序是获得extend里面的哪个值?1 t+ _: Y" D8 R: W: G0 v2 [3 b+ c; Y
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????