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: 2 d: g8 z y* G& O& ?Name = (WCHAR *) L"Poke"; - g4 L( p8 M ~7 ` 1 e( R( Y2 J( \7 p$ W- w0 r$ a hr = m_pDisp->GetIDsOfNames ( ! ^ l9 k3 D0 t: x" p0 F IID_NULL, // reserved + }, `" P! i! R &Name, // Array of names to get IDs for% S9 v7 g6 \! j6 m1 C- d
1, // # of names in the array2 y3 V) ?; y9 u# P# c' |, ]
LOCALE_SYSTEM_DEFAULT, // System locale: t6 \7 N) a% j
&pokeID); // Array of IDs to fill on output% i/ w/ G1 T) t4 M# m
- @2 d# |3 A) E$ J1 Q/ R
if (hr)4 B& D E! t; U& n1 M
{ ! t% \) w2 D" ` G; ~/ X1 W MessageBox ("Get Poke Unsuccessful");) D) Z" t: ~0 f0 e$ ^$ w: Z' z
return; # g5 T6 n0 b" a0 j9 {: ?6 F }+ |- {/ y! l: b6 ?
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/**************************传递数据给extend**************************************/: V4 ]8 ~! l& A/ C. k: h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ l" T4 W4 b4 z
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valueStr = SysAllocString((WCHAR *) L"1232"); - v8 T: a+ u* T9 |5 X$ f8 W VariantInit(&pokeVariant[0]); 9 N; C& _# D% V" l7 _( Z4 @
pokeVariant[0].vt = VT_BSTR; 5 H) _" q# l8 M* v pokeVariant[0].bstrVal = valueStr;, r, {5 A$ B' X: W. {
- C. U x+ K1 T0 a* y3 ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 j) l1 I. {. Q# F4 U$ s' P9 \0 n VariantInit(&pokeVariant[1]); 2 ]. w* x! s1 T* D+ D j) s. t pokeVariant[1].vt = VT_BSTR;: z3 X" g. D5 {8 S( d/ D1 D
pokeVariant[1].bstrVal = itemStr; ) F4 [! ~( m3 l8 R0 N8 e6 Y( C2 u7 z. @
topicStr = SysAllocString((WCHAR *) L"system");9 H0 f# ^' U2 Q. G
VariantInit(&pokeVariant[2]); 2 f: b8 T9 d x- ]1 I: o# m$ X
pokeVariant[2].vt = VT_BSTR; 9 b% A J* n$ P6 G5 p4 a1 Z/ n/ f pokeVariant[2].bstrVal = topicStr; $ I: o6 e. J$ J7 g9 C * Y! b" Y5 |- d// Set the DISPPARAMS structure that holds the variant. 1 I# L) I; H, X0 P" [ $ ^, d* b9 }9 R) ?3 l3 ~ dp.rgvarg = pokeVariant;8 N) m3 h- D, T$ r' e7 q
dp.cArgs = 3;" \9 G. y ~" ]' R" B+ [
dp.rgdispidNamedArgs = NULL;, Y# |. Y6 _9 q' S
dp.cNamedArgs = 0;; T: `( c: k1 V
" Y3 V1 I: ?: R2 T" |2 ^+ R// Call IDispatch::Invoke(); h; P o' D B Q) a) j5 }
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hr = m_pDisp->Invoke( 2 b* V3 Z- O8 G7 f/ y* D' c pokeID, % R# h& [" Z ~% w IID_NULL, 9 u( X- m4 T0 E9 H4 d* M LOCALE_SYSTEM_DEFAULT,( ~9 p2 E" M, X' u2 F- B0 m
DISPATCH_METHOD, * A K6 n. J- {# { &dp,0 F+ A2 ^( |$ D; l3 q, N
NULL,: i- @% n R& |0 q% ? R
&ei, & n5 x5 `/ K* d7 U5 f9 ~ &uiErr);5 A0 R. A* Y. j& U+ u# p
2 N: H* ]! J5 j4 J
SysFreeString(topicStr); 3 _0 a$ I' q0 G; I4 f7 n/ z SysFreeString(itemStr);' _) `2 m: N. o. r: s0 U- ~4 j, t
SysFreeString(valueStr);6 A5 v' g' B! y" D. B
9 P! @8 |8 _( L4 N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???1 _/ |* |( g" E: m( ?1 ^- \
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???? & p" J! C `. k" T9 e. V4 ~% i( [! G: R! o' f% p- z
4 d% W0 p& c. D: [4 y2.这是request的程序/ h: l+ ]# u% Z& q( ?
// Request a value from Extend6 p" x; P3 S, [: }
//( p+ `5 F, B6 V- G! O+ R
// Initialize the variant that will hold the BSTR. Set the variant's. r% R$ Z% [9 r. ~$ a6 \
// type flag to indicate the fact that this variant holds a BSTR. Place the1 S9 H. m6 e# u$ r
// BSTR into the variant structure. , ?$ T' } |. G/ y: W; i5 w( Q+ B `0 y0 d
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 E' U- o4 J. ~" T+ ]
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + V& L( s. m4 Q7 n) r VariantInit(&requestVariant[0]); & M2 P9 Z8 \. _1 p; }# E
requestVariant[0].vt = VT_BSTR; + \. A/ K1 N# [% y# V requestVariant[0].bstrVal = itemStr;, @5 k1 Y5 Y2 k$ a9 D
' o6 T8 ^& Q @" Z topicStr = SysAllocString((WCHAR *) L"system");4 ?4 k7 x& C1 K2 C; T4 [( s \5 X
VariantInit(&requestVariant[1]); y) M# d+ V) W) I/ b/ F requestVariant[1].vt = VT_BSTR; $ E& Y9 p3 ~& w; U) c3 C requestVariant[1].bstrVal = topicStr;1 y/ `3 }, c( b5 g- e+ Z
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// Set the DISPPARAMS structure that holds the variant. 2 m& L! K. t) q0 ]5 I [$ B. N; q9 w& H' _+ E" Z
dp2.rgvarg = requestVariant; * V( A# I; F7 c- d0 A. C1 G4 T dp2.cArgs = 2; U6 u: a6 Y* Z, g/ [6 f
dp2.rgdispidNamedArgs = NULL; h1 `" E; m% ?& C7 S. V
dp2.cNamedArgs = 0;, [6 I8 g, l9 b( G, W E9 U
0 q6 I! S* ~" g! k# m4 m var.vt = VT_EMPTY; 7 C/ g- ]1 i; X& b& B7 w+ k / Z. S( o: ]% c f// Call IDispatch::Invoke() 6 E. t, B0 h& T( f' T; c5 P9 F% {8 {. H$ Z3 ~
hr = m_pDisp->Invoke( 4 k6 e6 T' v! k8 b1 M requestID,, l I3 t( m7 B5 k6 j6 C7 l$ d. O
IID_NULL, : C1 x9 y* K2 z O# z7 g LOCALE_SYSTEM_DEFAULT, 5 P: Y9 s7 [( r0 `' I0 ?( O7 G( q DISPATCH_METHOD,/ s* G9 @ r& q" a1 y9 v) v0 V
&dp2, 6 ?0 ^' m+ K8 y2 j7 l' k &var,7 l+ u/ k6 D! o9 m8 B: G# z5 v
&ei,7 G: ~, u& r* p' k2 w
&uiErr);- u L) r3 F M/ p
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SysFreeString(topicStr);6 j: Q9 \! O: L6 B; C) m
SysFreeString(itemStr); ) L1 {% c0 P" f& Q3 I* R请问该程序是获得extend里面的哪个值? % [1 g$ O X- D7 j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????