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:. w) c6 ]- G% F5 V
Name = (WCHAR *) L"Poke"; ! j+ c6 l- g8 Q& K& G5 F( H2 k* z 0 Z: C4 O( k( w" m. V
hr = m_pDisp->GetIDsOfNames (" P4 L$ o& A! Z M) j
IID_NULL, // reserved 2 @/ W9 U' L7 z' n7 B &Name, // Array of names to get IDs for! v8 l& }, d w
1, // # of names in the array ( L/ \+ \3 g: o) |4 F LOCALE_SYSTEM_DEFAULT, // System locale - H0 k! }* u! i; T6 B# W! _2 Y9 w* b3 e &pokeID); // Array of IDs to fill on output2 K7 G' J. e2 L+ u& \
7 s( q/ Q- v5 g c" ~/ | if (hr): ~4 ]2 e" y* [- i+ b
{ ' c: m) X* C4 e" f q$ v; g MessageBox ("Get Poke Unsuccessful");' s, d# ]) t/ |* f! ~
return; ) ?, q N- `' [ } + Z5 T% Z6 `' v . S: [" V4 n4 Z/ V$ Z6 `& \1 m/**************************传递数据给extend**************************************/2 T! w+ l1 F/ I: p; A! N% s! [ [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 s6 l/ |; G; |7 G# t
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valueStr = SysAllocString((WCHAR *) L"1232"); $ V1 v5 l! L* v( A" z [ VariantInit(&pokeVariant[0]); : I. W( c+ m, H- I pokeVariant[0].vt = VT_BSTR; ' L7 W( _" y) X3 X) X' q! r, s pokeVariant[0].bstrVal = valueStr;/ X0 o. K g0 [+ U; [7 A
j# K d2 K# ` T" u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ T4 r9 d$ ]+ b! M5 U8 I
VariantInit(&pokeVariant[1]); 6 U( _$ l. T3 Q2 x6 a2 L% a pokeVariant[1].vt = VT_BSTR;. u4 j) V* m, R( `
pokeVariant[1].bstrVal = itemStr; ) {2 E& j0 |" `3 t0 K+ s & i5 E& R" p/ N$ H topicStr = SysAllocString((WCHAR *) L"system"); 2 k4 q1 f8 k s" n VariantInit(&pokeVariant[2]); / F$ O! [. Z$ \) r pokeVariant[2].vt = VT_BSTR; ) a) ?; _$ P3 E pokeVariant[2].bstrVal = topicStr; # V9 K. X9 N' G( ?9 v( Y: r3 i G, o, h- L* F9 \// Set the DISPPARAMS structure that holds the variant.% r. a. x% ?2 d, G* P1 R1 ^
4 F5 g+ Q/ L4 |5 Y: a3 h' n hr = m_pDisp->Invoke(8 _7 M; f. O i2 a0 v
pokeID, * G0 q1 H2 K) ?. G IID_NULL,- K8 F5 J9 P, t M
LOCALE_SYSTEM_DEFAULT, : g& p5 } S& ` G DISPATCH_METHOD, . V6 Z5 {$ S. H& t% _8 X) R &dp, 8 D( I/ y; k4 ] NULL, 0 I- O2 T5 |2 Y' z! x f4 [ &ei, / d4 r l. K9 e &uiErr); [' {# i6 a. p( @ ' P7 d! n0 S+ S, n% N: b SysFreeString(topicStr);5 { y' B6 L: A
SysFreeString(itemStr);/ ^0 w" _0 L) Q& C
SysFreeString(valueStr); 1 M9 @8 _- l" @( h$ U + a$ [$ o! X7 }, o) W7 i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???9 U2 ^9 Z5 @5 I; \9 U' Z
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????+ w' M2 m# s+ p% ^+ _
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& L3 P! q5 ~% A e5 f- K2.这是request的程序 " j# n+ U* S7 \// Request a value from Extend2 v' O3 n# J6 \% o0 g) }( \
// ! y7 v* g& n4 T( `' H2 r2 X+ b2 }// Initialize the variant that will hold the BSTR. Set the variant's d3 D0 P7 n. W5 P
// type flag to indicate the fact that this variant holds a BSTR. Place the7 `, q* r. K5 v8 X1 }# o2 {
// BSTR into the variant structure. 9 g+ S( _, K& ~) L0 H4 Q- F$ _; U4 {% k3 r7 E2 `9 }% ]
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' q5 o7 `# L$ m& r: U
, T U2 ?. P; Y) c ?* w( M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 R" n) Q) `6 z: e" g. v2 S4 s
VariantInit(&requestVariant[0]); ( M y0 {6 d( N0 d, ?/ z requestVariant[0].vt = VT_BSTR;& c, F( J; W! Q" w
requestVariant[0].bstrVal = itemStr; ) A9 |. q0 S+ t* ?% O0 p5 l! Y1 v' S" \: {9 e5 e. o0 Z
topicStr = SysAllocString((WCHAR *) L"system"); 6 A5 I; d4 {) R; ~$ f/ s/ s& G VariantInit(&requestVariant[1]); ! I0 g. P! A+ N% o: [) x5 y requestVariant[1].vt = VT_BSTR;) X$ S; } |6 j- S l
requestVariant[1].bstrVal = topicStr; & X- E* l5 m! D2 e |5 d9 q" F: Y: G: f) e, I
// Set the DISPPARAMS structure that holds the variant.9 g: o! K3 n6 o8 \" e/ b
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dp2.rgvarg = requestVariant; . L, v3 l9 H$ @) |6 v5 |7 @1 D dp2.cArgs = 2;! N* j/ e2 I" i- \- d
dp2.rgdispidNamedArgs = NULL;; y0 [) @' p' y5 n
dp2.cNamedArgs = 0;/ E$ N+ @8 `7 s% u8 Q( B0 u1 j8 \$ m
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var.vt = VT_EMPTY;' `- K# J* L' B! g8 I# Y- E
: @6 j' a4 W6 U4 S2 y// Call IDispatch::Invoke() , `9 m( U( G2 T 2 p0 _+ f6 w3 l0 S% e e7 ] hr = m_pDisp->Invoke(+ ?7 h$ T# l- i, z0 `% w6 h; h
requestID, " S" |7 ?* g- z) i, P9 ~2 F: | IID_NULL,+ O, z- D$ D E: S2 w) Y$ \9 C" Z
LOCALE_SYSTEM_DEFAULT, , e# X- E8 |0 H# D; y) ? DISPATCH_METHOD, : M7 y3 x+ K& i$ H &dp2, 5 O4 R: O1 k- F* P &var,5 T: o0 f0 B. g. i" R
&ei,. b7 w. K6 b1 ~& O# k
&uiErr);* |: V5 J! s, k1 F7 I9 S/ B
8 Q8 w/ B5 D, u0 _6 _! K SysFreeString(topicStr); , b3 U) x' d8 }2 y. Z' `# d SysFreeString(itemStr);' g, h. M. U0 M2 p- A1 c1 P
请问该程序是获得extend里面的哪个值?9 q9 A1 H H. n0 W S8 h7 `
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????