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:! ^+ J$ E4 S: h) ^" M
Name = (WCHAR *) L"Poke";7 d! Y: @# U3 G* L
0 K4 @" ^' o' h: C0 v. P7 P8 Y hr = m_pDisp->GetIDsOfNames () q* _5 w: ?3 k' U, x
IID_NULL, // reserved 3 h. |2 I; _1 k4 k' N) g% t3 V! M &Name, // Array of names to get IDs for1 [( U' Y* ?- l- G
1, // # of names in the array7 a2 l" J/ [+ U3 \8 ~. G) [
LOCALE_SYSTEM_DEFAULT, // System locale / i4 E3 ~' X5 E* }2 _* ^ &pokeID); // Array of IDs to fill on output2 e" ]( P* c9 h" S' ]% \% p
) E0 L8 Z; t* m; Z8 ^) {8 k/ ^6 E if (hr)( _2 }# r' n1 C" k$ X6 C' ]
{% z1 X0 g, Z, S
MessageBox ("Get Poke Unsuccessful"); / {( @. P% G; j* M8 _ return;$ m; Y( z5 G! F( |: _6 n5 H8 r
} 6 {2 @* \* g4 u# F' H$ f0 F7 n7 y' l# |6 z% r7 R
/**************************传递数据给extend**************************************/ C; `1 w0 Z" ]6 t' D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! j7 ]7 A8 O; L# o
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valueStr = SysAllocString((WCHAR *) L"1232");" p, P" ~" j; E$ K9 w6 `
VariantInit(&pokeVariant[0]); 0 B; T( |1 l1 H6 R/ ? pokeVariant[0].vt = VT_BSTR; 4 g' m5 g: O$ a; c: E' p9 r pokeVariant[0].bstrVal = valueStr; 7 R" K1 U0 Z/ M; J $ {# K8 R( v; ^$ ^! Z+ w# n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" r8 [ q1 t! d- e- n2 T
VariantInit(&pokeVariant[1]); 8 C1 p/ O; M8 g. O7 c1 M pokeVariant[1].vt = VT_BSTR; 0 h6 k, F9 J& \ pokeVariant[1].bstrVal = itemStr; : Y" C9 ^4 r1 P7 T8 n- q$ s. f ) |4 a2 A2 x3 A' J( w. } topicStr = SysAllocString((WCHAR *) L"system"); ! M! s c9 E% I/ F1 [ VariantInit(&pokeVariant[2]); / j2 E/ M$ t- D( ?- K# ^
pokeVariant[2].vt = VT_BSTR;. n: O6 T: Q- k% G+ |! ~" `
pokeVariant[2].bstrVal = topicStr;9 C# a6 J, {! S# h! M' U
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// Set the DISPPARAMS structure that holds the variant.+ X9 X" ]+ ?9 G- X3 F: r2 D
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dp.rgvarg = pokeVariant;) h/ s+ k8 ?3 R6 w$ ]
dp.cArgs = 3; : q9 H5 r6 R7 E9 B; C3 g dp.rgdispidNamedArgs = NULL;. x, f+ R+ o. C3 Y: S1 T( z% v
dp.cNamedArgs = 0;- |6 u7 s% \# [6 I3 `' L3 [
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// Call IDispatch::Invoke()- H4 l& a3 ?0 ?( k$ }- U
( U& S' R. o1 x2 ]9 j' @6 u* D4 d& c hr = m_pDisp->Invoke( ) y" s+ w$ y4 O pokeID,% X# ~6 g X8 M+ [6 R2 j. V
IID_NULL, - b v A, _) \# d LOCALE_SYSTEM_DEFAULT, 5 o; u) A( v( @ I7 W# t DISPATCH_METHOD,6 ~6 C$ U) c: F" x# z" O( J0 s7 |- p
&dp, # Y* B# _; D- @1 u$ D1 u" ]6 j& j NULL,) m) H% K0 B0 M \6 P/ A" i9 W5 n! P
&ei,& Y2 T( j% h! D
&uiErr);) d: t2 C; F4 |8 b8 ~
9 o2 N8 a8 ^* `5 b SysFreeString(topicStr);( g6 C1 b' b# F+ Z s; m
SysFreeString(itemStr); . p: a5 y/ p1 H5 r g SysFreeString(valueStr);8 _' p1 v4 C1 p8 u2 a* E
* u' P8 ^* }0 W, b; o1 y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??? 7 U4 b5 O) B: ~$ |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* u z4 ^ B, t( ]- s# l 5 j, ~$ N& A! k% o- T8 |8 S0 m3 @( K8 a7 }7 f0 O
2.这是request的程序 3 ^ x/ Y0 \7 j' k W$ g4 _* b// Request a value from Extend4 x% R$ }5 T X0 n1 W% b0 A
//- \4 J+ b. [! | F0 P5 m' A
// Initialize the variant that will hold the BSTR. Set the variant's: g# _2 E$ Z- m
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 d; G: H, }' ?9 S1 C// BSTR into the variant structure.7 k3 D" [9 U2 k6 ^" h i
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! a8 L6 M1 F7 {: R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 |& M2 e! F) a! e VariantInit(&requestVariant[0]); # u1 @0 Y4 h" R9 ? requestVariant[0].vt = VT_BSTR;6 K: T) A: B- r* y
requestVariant[0].bstrVal = itemStr;9 f# [( A* Y9 _. u9 h* A
~/ r4 E9 u1 L0 x8 l/ w topicStr = SysAllocString((WCHAR *) L"system"); ) Q( Y4 d: v2 H VariantInit(&requestVariant[1]); ( Z& [' ~5 M& d( S) Q
requestVariant[1].vt = VT_BSTR;9 r, d* C' r: n
requestVariant[1].bstrVal = topicStr;+ v" W) V/ x9 d% ]- Z+ @! e
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// Set the DISPPARAMS structure that holds the variant.3 k4 `$ l+ g1 i2 L1 a
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dp2.rgvarg = requestVariant;3 f. `0 L& Q6 L# Z0 D# n
dp2.cArgs = 2;: {& [$ I8 g. Y( k- l7 D2 T5 n
dp2.rgdispidNamedArgs = NULL;9 p0 T4 k, B. s/ A
dp2.cNamedArgs = 0;/ I9 K8 l) N3 ]- z6 f
3 \# W. R: q( q7 W. I var.vt = VT_EMPTY; + X" X+ ?4 F- I9 q( p0 ?% j* m d
// Call IDispatch::Invoke() / b! Y# @6 Q7 z* `4 t3 o6 I/ _ R8 Y0 D
hr = m_pDisp->Invoke(! d% W: W; {+ y8 L$ w! K
requestID, * \0 D' y5 I8 R5 h! T$ \7 Z IID_NULL, $ }9 c& o( A4 g9 r+ B! b LOCALE_SYSTEM_DEFAULT, ' l, _6 t# T7 X p DISPATCH_METHOD, . C/ K6 g# ^1 n, B ? &dp2,; L% J" s! q& n2 M9 ]
&var, 2 U( w. V# C I/ t &ei,' a3 [6 {7 [- U1 {- d, M* M
&uiErr); / O' ~2 k% r' B, H I1 _4 L$ K: v2 x3 T
SysFreeString(topicStr); ( A$ H; `( P+ M5 n5 K# D8 u SysFreeString(itemStr); ! P+ ^" n* Z( G( c* ?9 s请问该程序是获得extend里面的哪个值?) ^" y/ R( \% X
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????