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:! _4 n# k; z* U0 g1 M' [" Z
Name = (WCHAR *) L"Poke";* k. [7 l% q9 T( N/ w* m
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hr = m_pDisp->GetIDsOfNames ( 9 X* b2 s+ W* V IID_NULL, // reserved : y, K* p6 K% H1 h' o &Name, // Array of names to get IDs for: P1 \% O* } I4 S' x5 m
1, // # of names in the array8 [; W! `* ^( C
LOCALE_SYSTEM_DEFAULT, // System locale" R- v' V6 @3 [$ D" l
&pokeID); // Array of IDs to fill on output8 Z+ c% Q1 z A* \1 a
5 T; {2 O* u4 q4 s! H' T1 a/ ` E; a+ F d if (hr): Y( P/ x3 J9 @* p
{ # {: { F! L# _* | MessageBox ("Get Poke Unsuccessful"); ( D7 P' Q1 i. E* K# O% ] return; / e# O n$ H0 ^% o } ) @4 U8 I) U' A2 e% l3 K ) D3 ~3 n% B- ^* G1 Y/**************************传递数据给extend**************************************/ . m' o6 i0 @! }" u8 J- B4 f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 s, I) v! v7 n- n' j3 O: {; ?$ C; F
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valueStr = SysAllocString((WCHAR *) L"1232");0 B8 r/ H9 | S W/ O; P9 {
VariantInit(&pokeVariant[0]); 0 D* k# T5 J! \& Q$ _ pokeVariant[0].vt = VT_BSTR; & \: m5 O5 l& q/ { i pokeVariant[0].bstrVal = valueStr; ( ^, _8 | K, |' `1 J7 D . o8 K1 t; P1 Y" } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , }5 b4 g H0 c VariantInit(&pokeVariant[1]); 6 F- ^' K$ H$ d( {
pokeVariant[1].vt = VT_BSTR; / R7 y6 P& E3 M pokeVariant[1].bstrVal = itemStr; / v: ^. w/ C! Y- l& q: L% q ) j! d" h0 ~4 H7 l# F) N8 b topicStr = SysAllocString((WCHAR *) L"system");9 n. r, q- s2 P9 u. P& u: u/ r
VariantInit(&pokeVariant[2]); - t y8 H# Y" b8 V pokeVariant[2].vt = VT_BSTR; - O5 m8 W2 K( T' {1 H3 S/ v pokeVariant[2].bstrVal = topicStr; % U8 B1 M+ k# s% k2 x' J6 h& E" K2 a0 f7 |+ @
// Set the DISPPARAMS structure that holds the variant. 6 H, ^- C' a( y' ~! [* b8 d t3 e5 A- x8 k. a$ b
dp.rgvarg = pokeVariant; % H) S4 Q7 O2 b, A dp.cArgs = 3;: L7 \, c, }0 H
dp.rgdispidNamedArgs = NULL;' p3 [3 Q! h2 Q" K0 [) Q
dp.cNamedArgs = 0;2 l1 K( N- }) h4 q! p" |; Z" Y
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// Call IDispatch::Invoke() 1 \& G! [- Z& _& R U0 x! L$ a9 d) E+ G" m$ \2 J
hr = m_pDisp->Invoke(1 i; E* {* z" i) y
pokeID, 5 q L) l2 T) u7 X% C IID_NULL, 6 o2 J' `; c/ z) M8 L LOCALE_SYSTEM_DEFAULT, + \) c3 i4 Y7 _. e DISPATCH_METHOD,+ ^" ?% U7 P! P; j6 _+ x. @; V
&dp,) m# V9 Z' J& \' g
NULL, 7 h( M" o' u" {7 G' u% L- j &ei,# E6 T% [/ H/ A6 j" a
&uiErr);+ q( J% V' O9 M8 Z5 m' l# _, Z. n
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SysFreeString(topicStr);: w @* L( r% t+ a B( V
SysFreeString(itemStr);9 X& }5 m: u/ u* I0 z
SysFreeString(valueStr); 6 A5 _, \7 h8 I, @% D8 _3 I* x+ t+ _% h" m
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???3 B& ]% ^$ V$ p" J, g8 h8 I6 ]$ p
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????4 ]1 C8 @4 F, M$ Y
" E- }4 i" \* _' ] : Z% I2 M. T* g4 N2.这是request的程序 / b6 F& O& E; l// Request a value from Extend / l8 C* X# h0 R: B; s+ D$ U$ g. D' L// 5 J+ ?" o; N: \2 W// Initialize the variant that will hold the BSTR. Set the variant's0 y9 \" R# c G
// type flag to indicate the fact that this variant holds a BSTR. Place the3 t, T8 f) T( S: i3 i
// BSTR into the variant structure. 6 m) q* K, J' R+ ]2 A + E* P- N1 v7 \3 m- J$ t% l* i5 ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); A1 X; b! L4 Z9 d1 t5 I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( K7 a; h0 G7 X( C/ `8 [ VariantInit(&requestVariant[0]); 7 [$ h( R; c1 r+ e- U/ ?# c
requestVariant[0].vt = VT_BSTR;1 F- D `8 C0 f
requestVariant[0].bstrVal = itemStr;3 p" }" {$ G+ _. `( a
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topicStr = SysAllocString((WCHAR *) L"system");- `4 e" D. _9 k. h" n
VariantInit(&requestVariant[1]); $ ? k. J. P; o6 A
requestVariant[1].vt = VT_BSTR;' J% Z% b1 ?/ z& F5 G: |1 m. ]
requestVariant[1].bstrVal = topicStr;- l( ~6 K: v) \
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// Set the DISPPARAMS structure that holds the variant. 4 S6 e! ~2 F+ x, _% |/ p' N$ N* d7 _0 ]% G. {/ O$ @( ~1 V" |
dp2.rgvarg = requestVariant; ; {4 V( p) ?4 g) }) Z6 m+ \7 e+ w dp2.cArgs = 2; ' d, n' ?( _3 e4 N r dp2.rgdispidNamedArgs = NULL;* u$ e0 g1 E3 t* d& Q* b
dp2.cNamedArgs = 0; 7 }6 y) f$ J% I: k0 z0 _( l2 i% D& V0 b/ X( P
var.vt = VT_EMPTY;+ x( |& R; l- u5 r9 w
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// Call IDispatch::Invoke() - C- |7 o$ O! g7 T 2 A* h5 ?* {: W0 m4 @4 `9 G2 x+ l" W9 p hr = m_pDisp->Invoke( & v8 h2 L+ I; M2 W requestID, e# d# l3 C8 E k
IID_NULL,7 ?/ c( x5 M4 Y% e; N! A! g
LOCALE_SYSTEM_DEFAULT,; k0 ?3 }) w0 [" }/ \
DISPATCH_METHOD, # P q$ h( D4 {; W: z; X &dp2, * o: I) K/ d; D& b+ E0 e% y &var, / v! m, I- P6 _4 Q7 M2 F. Q &ei, ! @( {$ C3 t7 h: H, ?4 Z &uiErr); / b s( ~0 {7 {7 I: K' X0 g' Z 3 s% Q' l9 D. x$ J- X SysFreeString(topicStr);: {# ]+ ~- {4 y2 h7 k+ p- g1 U
SysFreeString(itemStr);& p S6 \, u0 z$ ^% p- c. m
请问该程序是获得extend里面的哪个值?3 i1 _, ?2 y. L( G# A
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????