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: 3 x5 O0 ~5 l- q% U6 K- oName = (WCHAR *) L"Poke"; . m$ r5 _2 s1 B) S4 x/ g6 I 1 N+ M9 J( J4 I8 z
hr = m_pDisp->GetIDsOfNames (6 a. _+ l, b! p- H
IID_NULL, // reserved * L0 e1 M# w, O# ^8 j &Name, // Array of names to get IDs for! l4 f" p+ ~4 n5 ]
1, // # of names in the array S% j5 a3 b% i7 ]8 } T) I: Q6 } LOCALE_SYSTEM_DEFAULT, // System locale 0 n* ~: ~( ~* j &pokeID); // Array of IDs to fill on output % I7 ~5 m, u+ D( V ( H0 a$ ?+ \6 Y7 u- O if (hr)4 c. l! D3 o: _0 }$ T0 a
{ ' N9 L8 c) c2 a4 o MessageBox ("Get Poke Unsuccessful"); % y4 i9 N" J' [% J( O% T/ p return;, J+ G/ { |/ o% Y. L$ W1 c
}; F9 f; q; d& U* p3 J" S
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/**************************传递数据给extend**************************************/ . b6 a1 B9 e1 Z9 H& m- k pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" g0 J/ E0 R$ k w
9 C* A* j3 d9 q6 l2 N7 ~& U valueStr = SysAllocString((WCHAR *) L"1232"); % Z3 \( b+ J- e2 c# ~6 u- H VariantInit(&pokeVariant[0]); ( O" Q" x" m8 m! W3 R, ? pokeVariant[0].vt = VT_BSTR; ! J7 C1 k. B$ g9 F4 a! | pokeVariant[0].bstrVal = valueStr;# K' I0 m; i! e
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 p' ^/ m/ W8 \+ _1 U) L, B" O
VariantInit(&pokeVariant[1]); ( K3 }; t# e( R. u8 N pokeVariant[1].vt = VT_BSTR; ! G( u2 [5 D8 K, Z pokeVariant[1].bstrVal = itemStr;' Q& d8 ]$ X i; [
6 E5 r$ u- H$ S/ R0 L, _( | topicStr = SysAllocString((WCHAR *) L"system");0 j" ]9 |+ _" P9 f/ i/ B6 l0 j
VariantInit(&pokeVariant[2]); ! Y( Z! e" s* A! [
pokeVariant[2].vt = VT_BSTR;* n0 f4 S3 f) c+ i* ?) s
pokeVariant[2].bstrVal = topicStr;# X9 @+ {: V& |' H9 Z
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// Set the DISPPARAMS structure that holds the variant.! F* c# D+ C. w% G
% Z5 _0 q+ u+ T. w% ? dp.rgvarg = pokeVariant; ( r; K. F+ o: Q7 P) D# F dp.cArgs = 3;9 w, _7 j% A: a. G% W1 V
dp.rgdispidNamedArgs = NULL;. d' d. [% x1 G. `
dp.cNamedArgs = 0; 8 k2 |- x- b& r) l; d, o3 u4 [3 R% N- K% Q3 f
// Call IDispatch::Invoke() ! U5 x. @( b* P. F5 C , j* d9 E" l5 X hr = m_pDisp->Invoke(: }# R* i9 ^2 g+ ~9 ?
pokeID,8 c3 }$ \/ J6 T j9 T7 d, \0 M
IID_NULL,3 e8 ^9 B5 A. ?! Y3 F
LOCALE_SYSTEM_DEFAULT, : D3 H6 Q% e+ V( A9 \" z5 J DISPATCH_METHOD, $ Q9 \% z l9 V7 o& O" l& A &dp, 3 Q, M! s. ^( t8 h/ ~0 B NULL,, Q& F8 k% `* @0 t$ @- ]' _& m6 L
&ei, 5 g$ z H w, X+ C6 ~ D &uiErr); : J# n- H6 p; U0 S1 r , G/ I. b: I, a0 h4 |) e; E: X% p) T SysFreeString(topicStr); ( U0 N/ H' |) ^" C SysFreeString(itemStr);+ t& G* @5 G3 ~) v4 P @: {
SysFreeString(valueStr);& D. k* |+ O9 V$ Z2 Z, h
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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??? 7 o7 s1 h9 q) h- Y, ~" ~+ C" {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???? / }* D7 m& r1 t* R5 c9 ~5 D: L( u% y) w# P" x4 h1 H; H
0 @, c/ t9 n. t2.这是request的程序- I8 M% ^4 C& S k0 Z4 a
// Request a value from Extend " Z0 ?$ y7 J$ U//6 G' w$ S% u( R# j
// Initialize the variant that will hold the BSTR. Set the variant's % @0 @8 }( p, J// type flag to indicate the fact that this variant holds a BSTR. Place the, S" A. e- t6 M
// BSTR into the variant structure. 4 Y0 W" y* {1 j - k* D1 l7 ^3 G4 y. L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ e7 c/ V2 ]$ O
3 q& P3 V8 {* Y2 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 v A8 P& X9 r2 v0 O& L
VariantInit(&requestVariant[0]); c+ F( t& h1 @
requestVariant[0].vt = VT_BSTR; 5 n6 v, I2 w+ ]: W: \$ y requestVariant[0].bstrVal = itemStr;. c/ l4 l' x7 }
7 S. g. E2 n: M6 m topicStr = SysAllocString((WCHAR *) L"system"); B+ S( N! O6 t6 D( O; V/ E VariantInit(&requestVariant[1]); 6 Y/ \- x& y9 e
requestVariant[1].vt = VT_BSTR; 5 N8 n n4 Q4 _ requestVariant[1].bstrVal = topicStr;8 l" v7 Y8 T; s& r
j+ }$ R Q6 `3 l/ U0 L0 [// Set the DISPPARAMS structure that holds the variant.+ ~3 z; J# V; R0 m
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dp2.rgvarg = requestVariant; 4 l- p) P: j; i* a! F+ |9 @ dp2.cArgs = 2; 0 h0 M F8 ?3 D1 I w: L dp2.rgdispidNamedArgs = NULL;! W+ z4 Y! I8 g, G1 l
dp2.cNamedArgs = 0;, k. D/ E `8 u% m! g) Y
3 W q& e l3 o. {- V! v* R var.vt = VT_EMPTY;! _# K' D7 w, O3 ]$ @+ y( ^
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// Call IDispatch::Invoke()( v2 S+ C/ k6 y }4 x
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hr = m_pDisp->Invoke( # C+ A& q6 [& M; h4 u- m requestID, 5 l" ?9 K$ r5 d2 Y IID_NULL,( e( [* Z; V- F; z: ^
LOCALE_SYSTEM_DEFAULT, 5 V2 v/ h% u( W DISPATCH_METHOD, ; q# j/ [! U/ U2 ? &dp2, # R& N$ s E: D+ m$ u) T &var, 3 [( x9 l, q9 p1 m5 P& u &ei,+ [$ E3 b( c2 i* T0 D- U5 ]! I
&uiErr); - N- G- z" z6 D; D7 e) f7 B6 X+ f) Q* V" v% _% I/ k2 [, e7 L
SysFreeString(topicStr); % B# u. _- J4 z2 h& }& i SysFreeString(itemStr); . |' T8 b5 Q& G4 [; d) D3 r+ J请问该程序是获得extend里面的哪个值?% ^9 ]" X8 t: I- h* B1 G
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????