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:3 |7 D( N! H& t+ D
Name = (WCHAR *) L"Poke";/ |" r3 T0 G! i0 K- W( G
; @8 \" h6 {8 f3 @6 R2 T% m G* a hr = m_pDisp->GetIDsOfNames ( 3 r: T f ?: z$ F4 ] IID_NULL, // reserved& v2 r$ u5 B7 C/ i }
&Name, // Array of names to get IDs for ; i$ K( p; h" \, Q- c 1, // # of names in the array 6 ]4 g- M' K/ q3 ?7 c. b LOCALE_SYSTEM_DEFAULT, // System locale 6 |2 K! b8 p+ K- ~) Q1 S5 I &pokeID); // Array of IDs to fill on output ( B4 \+ q% {2 Y# V6 _ + Y3 ?' F8 u7 D; M8 W, J; [: F if (hr)& }9 @ T/ w- y
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MessageBox ("Get Poke Unsuccessful"); % J2 f( \4 c. j$ ` return;+ r. {0 B2 S! R, @. [+ N
} 8 G/ m9 r- d* B$ | ! \8 j9 a d# t, K4 f: A/**************************传递数据给extend**************************************/% Y: a- a7 F' w0 S6 y) ?1 x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / n( ~1 F8 h7 p3 O# B& H. R# r . m2 ?0 @7 T' B% ^: T8 E
valueStr = SysAllocString((WCHAR *) L"1232"); & K1 x8 l% m. A- U& \2 f VariantInit(&pokeVariant[0]); & p" K' f7 ?" k pokeVariant[0].vt = VT_BSTR; 3 w1 ^1 @% G, e$ t( R pokeVariant[0].bstrVal = valueStr;+ K- @5 `3 i" c8 v
: Z$ p4 e, d$ y) B8 B0 D* X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * u0 D0 J ]; ?% t VariantInit(&pokeVariant[1]); ! g6 M: f$ s R$ [
pokeVariant[1].vt = VT_BSTR; - R! U, r2 i1 u9 O4 u3 ? pokeVariant[1].bstrVal = itemStr; . f. v) O4 }0 L. w& z2 G % Q# X$ R' c2 z. _! F8 K ~ topicStr = SysAllocString((WCHAR *) L"system"); ! [& {! O( |; ?, m0 M VariantInit(&pokeVariant[2]); & ~6 \/ ?# ]1 j) n8 e1 Z pokeVariant[2].vt = VT_BSTR; + Q* G/ A V3 h6 j1 X3 \ pokeVariant[2].bstrVal = topicStr;; [3 W+ M) F1 H9 I( `: X
7 Y' m \* @" A0 P// Set the DISPPARAMS structure that holds the variant.8 _; C& f0 P" C
, N# t2 R! |6 z- c H7 z' v dp.rgvarg = pokeVariant; S6 w6 A! H: r
dp.cArgs = 3; 6 E& i, k% Y9 P1 [ dp.rgdispidNamedArgs = NULL;* x7 T3 X7 X) h
dp.cNamedArgs = 0;0 e% l3 H* _- n
) q% t" v' e& s2 v) r9 t// Call IDispatch::Invoke() 9 ]% F: [9 M* W# P' n& [6 \ ) T t: ^( c H( t$ O5 M+ |) d hr = m_pDisp->Invoke(- N$ J% B; j4 @) H! p
pokeID, ' Z; `# c3 f" w8 S9 B- H( g IID_NULL,+ ?6 n# c! G. e5 Y
LOCALE_SYSTEM_DEFAULT, : t/ ?2 ?7 {/ J1 v/ _. C) K4 N6 d# G DISPATCH_METHOD,8 Q1 {1 U4 a$ N8 Z6 R( F3 u; X. j$ R
&dp, ! x- D5 R' f! C( n5 ^7 l3 n) w NULL,0 A$ n! ~% E1 G/ ]2 E
&ei, - f/ x, v0 E" c, u1 n. E9 \ &uiErr);3 A% V9 [* L# e1 |: b$ A+ D
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SysFreeString(topicStr);8 p: }$ G- o3 Y- e& ]8 i/ q
SysFreeString(itemStr); t. C( s5 O& i! ]3 P+ T
SysFreeString(valueStr); / I+ p- d1 o' }4 q- e9 I) k& E, o( H1 Q6 s* m& v8 p3 `
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??? / W6 N4 V4 q0 p8 M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 c9 G, p" B) v( t3 b: S* R
; N; S6 q) Y6 \2 H& e) O H3 L : }) R" i. q' D8 p! N! I1 |! y2.这是request的程序 + T: r" z3 W2 A// Request a value from Extend 5 F' F7 V5 J- s- |4 d//4 Q% M: ^; v+ N5 Q$ `# j7 v
// Initialize the variant that will hold the BSTR. Set the variant's$ L7 E0 v1 j' K7 [
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 J3 ?6 g3 s/ D$ Z// BSTR into the variant structure.4 N6 F3 r9 w. s1 i
5 c4 x) e* l/ t+ F3 J, }; ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - S, F N* f, z& W- \, i* z 5 V) s5 S4 `8 O* c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! m/ w# x1 {- I/ o
VariantInit(&requestVariant[0]); ' t4 d, |6 Y; ~! o8 ]. ^
requestVariant[0].vt = VT_BSTR; * G6 r. _; d& d7 a+ \7 R$ x requestVariant[0].bstrVal = itemStr; + Y3 w1 @/ x/ m. h) n6 ^2 l6 [4 b, d6 O6 e& Z( Y/ d) K
topicStr = SysAllocString((WCHAR *) L"system"); 3 n' y5 L+ ] I8 h) D VariantInit(&requestVariant[1]); 1 _0 A! A" \5 } requestVariant[1].vt = VT_BSTR;9 p8 d0 y* z' V3 \' L% ]: e4 \
requestVariant[1].bstrVal = topicStr; / y; D( Q+ t1 Z3 z1 Z3 A% L( G0 p7 C5 s- A) V5 e- Y4 u8 q+ T( E+ Y
// Set the DISPPARAMS structure that holds the variant.8 ]! v) |' V l" _
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dp2.rgvarg = requestVariant;) K! t9 Y8 B# z. a$ Y
dp2.cArgs = 2; ^9 y' E( p( ]& ^! P2 z( N dp2.rgdispidNamedArgs = NULL; 3 S" u4 F1 b- c; M" N. ]5 l dp2.cNamedArgs = 0;# U" L- l* [( a1 j& U
0 Z1 F2 _$ @7 s0 I' t' C3 i var.vt = VT_EMPTY; , I w* b; \. A. R2 h* J+ C0 ^# ~1 F% a: p; P& O. Y
// Call IDispatch::Invoke() 8 Y' a9 V4 o8 _& m* b! p5 g " P5 d. k- k/ _7 s hr = m_pDisp->Invoke( ; D/ h9 n! P1 @: X' c3 A& d# H0 S! m requestID,2 O Q1 \' c6 J
IID_NULL,; \1 ]- F$ Y8 g2 R8 x: s
LOCALE_SYSTEM_DEFAULT,0 f1 k2 u2 S7 k) r, W( b. w; q |. w& F
DISPATCH_METHOD,4 P! T9 }- i+ u. s/ z1 Z
&dp2, 1 B3 M4 Y, U+ L" U& ?" J( Y &var,; }) n ~' y T/ p
&ei, , d/ s. t1 {# K6 }1 e' V &uiErr);9 ~5 B) n4 }1 f/ |5 y7 |4 _/ O
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SysFreeString(topicStr); + t! ?5 e O6 T" j SysFreeString(itemStr); / j2 F* b) X+ U! U$ I, ^4 l请问该程序是获得extend里面的哪个值? 0 t2 Y5 B7 X0 u, y0 P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????