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 x4 q$ D% e" z/ x2 E" Y
Name = (WCHAR *) L"Poke";3 k( f& [- @# c* P
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hr = m_pDisp->GetIDsOfNames (0 \5 r0 ~ S0 ?; ]) u$ h
IID_NULL, // reserved9 U; k. [# ?' i" Y7 N: K; t8 P
&Name, // Array of names to get IDs for # [& H/ z$ D! F, ?' ^$ \* ^' s 1, // # of names in the array 3 X; k8 O) d$ s LOCALE_SYSTEM_DEFAULT, // System locale$ R0 @' @0 A9 P& ]& ~
&pokeID); // Array of IDs to fill on output 6 r! ^7 l1 v8 ^) A6 G: M% [ 0 j1 ~! k/ `( \7 Z if (hr) % c: G" K9 E. E$ W/ d0 O0 o {& `4 A8 ?0 G* U* n/ r$ N
MessageBox ("Get Poke Unsuccessful");8 l: U4 V3 i/ d
return; * Z3 N! _- \" {. u' r) Y } 8 M5 t, `4 y3 p) S( m3 u. v % j3 O+ J3 F% ?* C2 |7 V/**************************传递数据给extend**************************************/, [- b( _0 T% ~/ r+ \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! s- T- P7 O/ Q- L ( D; e/ L4 K1 L' O" D, @* c valueStr = SysAllocString((WCHAR *) L"1232");3 [$ b% ^: n) E5 o% s
VariantInit(&pokeVariant[0]); / s7 h2 \3 z9 Z2 n7 M/ e pokeVariant[0].vt = VT_BSTR;. `( z! F: @; d# `9 g% h
pokeVariant[0].bstrVal = valueStr;/ ]4 Z8 L# n! W/ K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , `( Z* M3 Q& u VariantInit(&pokeVariant[1]); ! N3 g! z4 \7 A8 p; G pokeVariant[1].vt = VT_BSTR; $ }& B0 D; d1 ~8 K' h% o pokeVariant[1].bstrVal = itemStr; # P0 M5 H! \# S7 h5 T# Y / u' d& K9 N. ^) P topicStr = SysAllocString((WCHAR *) L"system"); 8 i- `3 [* |6 t# |+ M0 [ y* u* [ VariantInit(&pokeVariant[2]); 9 R& [. k; c1 g$ u/ |
pokeVariant[2].vt = VT_BSTR;$ Z6 O$ p+ v0 v1 v- x2 D3 O
pokeVariant[2].bstrVal = topicStr;% t# \! c$ v& ?" K: k* Y
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// Set the DISPPARAMS structure that holds the variant.4 }) G$ g: \" {4 P7 I( n7 }
* x* q* t8 E% c dp.rgvarg = pokeVariant; }: p/ ^) E7 O2 O+ c dp.cArgs = 3;" A- V# |1 m' P4 S7 `" K% d+ \
dp.rgdispidNamedArgs = NULL; 1 M1 H9 A0 w. { dp.cNamedArgs = 0;& Y+ O7 V# H1 w. d2 Q |( F
* m+ |+ @+ F5 S% l ]) z// Call IDispatch::Invoke(), O) m5 T$ B* N2 U
' C8 V3 c, s7 W* T9 S. N& K' P hr = m_pDisp->Invoke( 9 R- {! ]. X/ a9 j2 z* n7 i pokeID, ) S: B! j4 X( q8 `$ }6 @7 p$ _ IID_NULL, ( Z7 _& ^* [! C$ p6 L/ ?* K8 I; V LOCALE_SYSTEM_DEFAULT, 8 [3 i) ^+ o) }" U" z' W% D- M% m DISPATCH_METHOD,2 D3 N# C& n6 [4 W" ` J
&dp,8 `0 k' P7 j* C7 {% g2 c
NULL,0 J) w8 A2 M" u7 o- G( E, N
&ei,& k: g& `5 `4 J+ E, z% }5 L! h. A
&uiErr); . ^. I' M3 {0 r! S/ s6 [1 n1 l9 U6 K3 l( N w
SysFreeString(topicStr); 0 Y( J( B# ]6 }" {) z1 |$ Q! K SysFreeString(itemStr); : M& g" a: @4 A/ W! @9 |& a SysFreeString(valueStr); ! {; F: I/ x5 L8 x# N- S5 a& B. E) T4 Z- R: l
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???" O1 ]# O1 b6 `2 H, D
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????2 t8 N2 Z I7 o( ?' R
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2.这是request的程序 0 S1 z8 |, u X3 H& F// Request a value from Extend( Q, m; Y2 Z, k z3 a
//% o s: \; t9 E* I6 t
// Initialize the variant that will hold the BSTR. Set the variant's - L2 x1 N1 K- Y/ ]) v$ l// type flag to indicate the fact that this variant holds a BSTR. Place the & R8 V5 {1 h" m, J! y// BSTR into the variant structure. + O3 A) J5 L: O) T3 P+ T' x9 E C$ l3 |& L, H$ d1 _
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 r% P% r& i1 Y* g , e; b) N! k) ^# ~9 U: L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : }9 e, C0 D+ Z+ O# c# }& D- m VariantInit(&requestVariant[0]); 9 u1 |0 C& ^) @% N8 }
requestVariant[0].vt = VT_BSTR; Q0 o8 W8 T( v( R8 G requestVariant[0].bstrVal = itemStr;5 }0 R: g" u+ P7 f0 s! M
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topicStr = SysAllocString((WCHAR *) L"system");- M( k+ |8 f( e# T5 Z% U- A
VariantInit(&requestVariant[1]); ) I; B7 v. u; Z! f
requestVariant[1].vt = VT_BSTR;: M0 G9 P& w+ y y* `" A' l
requestVariant[1].bstrVal = topicStr; 4 M' C/ y- A" W' `+ p 8 S) ?6 T S; V2 u6 ?$ W// Set the DISPPARAMS structure that holds the variant.4 ~+ u% e) Y t7 `
* R8 \; T/ I8 B5 Z) Z$ |) R dp2.rgvarg = requestVariant; 7 i i9 |' E# F3 I8 \. a dp2.cArgs = 2; $ D5 E% l+ L2 S dp2.rgdispidNamedArgs = NULL; " ?6 Z" h2 M4 {/ B. l) f dp2.cNamedArgs = 0; 3 a1 x) B+ j1 T* `/ I! j1 w * W! ~0 \9 l l# @9 y4 f var.vt = VT_EMPTY;9 T! ]% k& P* {7 c2 F ^
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// Call IDispatch::Invoke() 4 ~1 V8 e9 d9 Z1 p- a & J2 H5 F- g- E2 Z ]; p0 m hr = m_pDisp->Invoke( 6 X1 x' s7 ]' O H requestID,1 T1 I2 n2 a, b5 A3 v7 D
IID_NULL,: j( y$ a4 v0 @: y5 Y
LOCALE_SYSTEM_DEFAULT, & f( Q% [" r- d DISPATCH_METHOD, ) d: A, ?- ]" O( ^3 x/ Z* Z* z &dp2, ' w* V0 q4 a# ^4 M &var,$ n: _, B) f! H1 }! K
&ei,' A4 Z3 R0 m5 s, c/ a
&uiErr);, H1 p& v+ n% o
5 p( ?' ^9 b% E+ g0 z7 E# z SysFreeString(topicStr); - ?: p8 }$ Z4 b0 Z6 ] SysFreeString(itemStr);: H" g( R* h e6 T. C3 P
请问该程序是获得extend里面的哪个值?$ x: ]: ]3 f; {- g5 D9 ^- B2 v
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????