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:' M: ?" R5 v* b4 T- j! }; W
Name = (WCHAR *) L"Poke"; # q# [$ m/ H+ F. F " f h' A0 E2 M/ ?( X: ~* ^ hr = m_pDisp->GetIDsOfNames (9 X0 a# ]/ W7 ?& N: N
IID_NULL, // reserved+ b& w7 _" n6 Z0 i
&Name, // Array of names to get IDs for 4 g) U3 A7 h5 e3 x0 ~+ Q4 N 1, // # of names in the array$ p. }8 z$ v6 `* r" B
LOCALE_SYSTEM_DEFAULT, // System locale & K; t" K8 j# D. y &pokeID); // Array of IDs to fill on output 0 f! ?# C* ~0 W8 S0 Y2 M3 ~! \' ? # S1 O2 n& u( ? c: x
if (hr)1 G/ _4 E& _3 D& Y% l
{ . ^4 W1 V( T" |6 _7 Z MessageBox ("Get Poke Unsuccessful");9 s6 K8 @% L! N; O- R1 s. r7 h
return;* e6 \# d1 Q9 U
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% N3 I0 n3 g, O1 i- a
/**************************传递数据给extend**************************************/ 5 i1 y, h; O2 i' d$ P( h pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# \% z: a7 w6 x+ l5 Y
9 q! v# X1 X k$ q$ n7 w# C valueStr = SysAllocString((WCHAR *) L"1232"); 9 o; D5 N3 E6 q* X; B1 {+ I# @ VariantInit(&pokeVariant[0]); 2 e9 `0 I. Y- v3 y$ D! ]9 {
pokeVariant[0].vt = VT_BSTR; ! F! [- A! n! _* B; ` pokeVariant[0].bstrVal = valueStr;1 O m0 z+ i M. D% N
2 @2 y8 O5 l& r* W5 v, i, u% V& E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) D9 j" r0 C2 N VariantInit(&pokeVariant[1]); ! f4 t) c P6 E. O
pokeVariant[1].vt = VT_BSTR; % V6 _+ L; P+ u" G/ Z: b pokeVariant[1].bstrVal = itemStr;- N1 o- u% Z3 D# S! }
" v2 X, S: X4 L- ]- h c8 X5 S7 a, M topicStr = SysAllocString((WCHAR *) L"system"); ~$ A$ s# S. w0 i+ c
VariantInit(&pokeVariant[2]); : b1 f: p# g. k, M: @. H4 r
pokeVariant[2].vt = VT_BSTR; . e9 L! E: B# E8 D" _ pokeVariant[2].bstrVal = topicStr;, @) ` }* y7 q" u) Q. m* {8 R5 ]
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// Set the DISPPARAMS structure that holds the variant. : Z2 P3 I! r* ^9 w: W7 U. s 3 i9 A$ r, C$ _/ W0 A% |9 ` dp.rgvarg = pokeVariant; 1 |, S6 _2 \% v) u2 ?, i! O dp.cArgs = 3; , Q7 ?8 j( d2 A* m% }# [ dp.rgdispidNamedArgs = NULL;, v4 G' L1 O1 }) r3 J
dp.cNamedArgs = 0;$ z/ u! Z7 E" C% p8 n
9 ^0 N; w) S6 _
// Call IDispatch::Invoke()8 D. J! A+ G) V/ ~& B3 a8 A8 j
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hr = m_pDisp->Invoke(/ `& {# _1 ^& [+ b/ {7 v6 H3 U
pokeID,- @) B9 J- J3 U* J
IID_NULL, 0 k7 N# H9 h& a4 e% C LOCALE_SYSTEM_DEFAULT, , h+ x# x" o# r DISPATCH_METHOD, 1 c9 u. u! Q b0 m &dp, 1 n8 a2 x& {+ Q& s4 m, R NULL,: X L/ H4 ~+ k$ K
&ei, / c0 k2 s. V6 U; T5 l0 @6 ]) j- \ &uiErr);: R. I2 X! C4 F1 A2 D+ v/ U
4 i9 g6 v6 [* s( v0 D0 v9 J
SysFreeString(topicStr);9 ~+ O6 S0 N; C S3 q
SysFreeString(itemStr); 6 x6 m1 T5 d' R- S8 q I SysFreeString(valueStr);) M3 b, q# P+ V2 m. Q/ p# |
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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???2 J t- G/ p9 e% 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????; i/ `; G5 F% Z/ }2 t- T
& A/ X- Q. f* X1 i! m5 k% \! u" ] # q: w, d/ i: J9 Q# k! f0 p: }2.这是request的程序 0 B7 ?$ h; W% m4 U( `/ p9 ]// Request a value from Extend1 M! u$ E) d7 w, m2 B
// + M7 B$ u. C. x4 R// Initialize the variant that will hold the BSTR. Set the variant's , I: B6 r% w) g9 B9 b// type flag to indicate the fact that this variant holds a BSTR. Place the 7 f7 ~- }! I Z3 S/ u' e// BSTR into the variant structure.' c8 @+ B! D) h6 c1 u( Y! ~1 r
E9 o- C8 q7 h* T: H! k requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. T1 g5 L! |" g$ C9 ]$ U Z
* u2 \# {- x3 Y7 X; m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! N# `6 ]4 j' {. F VariantInit(&requestVariant[0]); 5 ?' M( K7 a7 ^1 A- g/ s% I" ?
requestVariant[0].vt = VT_BSTR;) N: V) t1 Y. U3 B4 B
requestVariant[0].bstrVal = itemStr;: j3 J0 O" z, m6 I9 f) `0 m
9 J2 r1 z* x1 w4 b1 h topicStr = SysAllocString((WCHAR *) L"system");9 J* \! n# y0 {2 ]0 x" z% [: D
VariantInit(&requestVariant[1]); 3 B/ O6 y" T0 Z* N1 o' U
requestVariant[1].vt = VT_BSTR;9 B2 j" z' B# x R
requestVariant[1].bstrVal = topicStr; % D, W& o( t& O s9 n# ? 3 i# F& }5 Y1 X8 D, ~2 @. i! w- x// Set the DISPPARAMS structure that holds the variant.6 R- a# X4 O6 v& |
/ V7 ] n$ T- @# d4 ^/ G dp2.rgvarg = requestVariant;. |* j% @0 {! D3 v
dp2.cArgs = 2; 3 F4 z$ U6 r3 | dp2.rgdispidNamedArgs = NULL; 4 C, e P0 {: v7 X: Z/ p dp2.cNamedArgs = 0; " t: S1 Y8 q7 e; s2 r0 X5 l% j" ~7 p, M& `
var.vt = VT_EMPTY; , ^9 A7 `3 n& e8 g0 Z/ A* N* g* u3 W
// Call IDispatch::Invoke() * W4 _9 h1 C2 v, Q ( j; g7 [8 y6 U3 Y' n: H hr = m_pDisp->Invoke(9 b( y0 O. Y' i2 V1 O8 u; z8 f
requestID,* z* ~7 g- d1 ^! ]# k
IID_NULL, 2 T0 i. [' K% P LOCALE_SYSTEM_DEFAULT, ; M2 L/ R$ D. F. l0 v DISPATCH_METHOD, 6 g+ J# p9 F" U0 z+ j7 s9 r &dp2,7 ]/ q. g6 u9 t) N% Q# z! Y5 b
&var, ) k3 ?5 \3 a$ I- Y* _ &ei, $ y5 d+ t, i6 a T4 Q$ I, f &uiErr);- N: i6 B6 f4 ?* r) i
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SysFreeString(topicStr);' J6 `" p/ n2 u
SysFreeString(itemStr); , j$ r) Y, c& u0 u2 p0 c5 n请问该程序是获得extend里面的哪个值?$ d( [8 p7 s3 N5 g1 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????