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:/ ^' L: P5 W5 L
Name = (WCHAR *) L"Poke";/ S+ o6 p9 W4 Y [
$ \& F) t5 p* I3 K! |6 a8 W" z. j hr = m_pDisp->GetIDsOfNames ( $ q4 N# O, Y/ ~/ F* Y) J IID_NULL, // reserved8 @$ v! f0 @6 `( t7 k) a/ L
&Name, // Array of names to get IDs for0 _- `7 a4 M( M6 L
1, // # of names in the array s/ N6 R4 A: s# v/ C
LOCALE_SYSTEM_DEFAULT, // System locale% ~# x h) }7 g2 @) Q8 ^
&pokeID); // Array of IDs to fill on output+ @: \3 c9 M# T6 l
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if (hr)% |$ K0 X$ n/ g' N( C& _7 m
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MessageBox ("Get Poke Unsuccessful"); 3 [' k( H3 Q' T+ N! L4 b return; 8 q% X! A3 P( b% F/ t$ M1 W } u1 I" L! k3 ?0 s* S! d4 P% t; w# O* B6 }# R
/**************************传递数据给extend**************************************/ 3 M* h4 m+ @8 q- z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 p7 u J! D. i9 @
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valueStr = SysAllocString((WCHAR *) L"1232");/ j" ?5 i" [4 J+ ~' C5 E3 }1 p
VariantInit(&pokeVariant[0]); . S+ \0 k8 O0 c pokeVariant[0].vt = VT_BSTR; 5 F& W" h) E3 w' D2 @( ~9 Y pokeVariant[0].bstrVal = valueStr; ; s1 v7 k* Z: E. s2 m) u 3 N( j5 q" r% P( t9 [: S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 f* o3 o& n% i) N3 F/ p4 M: U6 } VariantInit(&pokeVariant[1]); 4 ? N1 `7 l* p! m) R$ `$ ^9 i9 J) g
pokeVariant[1].vt = VT_BSTR;/ }: o$ n8 q$ ^. P3 p( s: _
pokeVariant[1].bstrVal = itemStr; & u* \- b# s A! g$ c1 ^ 1 A; s7 t( k. D: b/ g1 s topicStr = SysAllocString((WCHAR *) L"system"); 5 \- Q, e6 X( K z) ~ VariantInit(&pokeVariant[2]); % n6 B& D+ a$ c3 m1 R
pokeVariant[2].vt = VT_BSTR;* o) T* C! U8 S8 |
pokeVariant[2].bstrVal = topicStr;% Z& C V( I$ B, D/ i4 }. k
8 z, E% z7 c2 T9 W// Set the DISPPARAMS structure that holds the variant.( g; a0 g% k: }& y- `' T: \' u
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dp.rgvarg = pokeVariant; " \ ~4 Y# o/ `4 S9 t dp.cArgs = 3;* s7 e) b" d; s
dp.rgdispidNamedArgs = NULL;. w& S F0 v! @3 t: X
dp.cNamedArgs = 0;3 p5 {) B& f5 W) S- g C
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// Call IDispatch::Invoke()% u9 |3 K% J- i
7 X: J3 |: F2 r4 r6 O/ v hr = m_pDisp->Invoke( + Y7 n( o1 @) l9 q6 e9 U/ C/ [ pokeID, . r* R( ~( a m6 u: h. f2 U" A: r* J IID_NULL,1 x% |$ u9 A9 a* S
LOCALE_SYSTEM_DEFAULT, 0 ?' T% s. W1 U, z DISPATCH_METHOD, 9 n; P' z( y& M6 m7 a8 g6 U% Y( D &dp, . _% W6 V, Q+ j5 J NULL,* q: Q& q7 O2 t# n* z# P: _
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&uiErr); _! _1 _! k, s* x: N# a $ O3 q. n$ j$ C% H% x& z2 ] SysFreeString(topicStr); 5 |. \% X7 `3 `. p7 H4 a SysFreeString(itemStr);/ y$ [- E+ m2 |# X2 E8 a) B2 t
SysFreeString(valueStr);, x1 Q6 ?( f9 q+ r( ?2 X! t) W" G
8 W& P: T m8 b- Q8 g% B! P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???, o/ l% c; Z0 g3 ~1 J; T
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???? ! x1 `8 c y' K) ? 9 W4 H6 H% K9 G9 E / F V* w8 w; V0 v2.这是request的程序2 x5 g# Q6 K% F; o/ t6 J% `4 _: {
// Request a value from Extend ) a9 I# p' h$ j) C9 P//, }2 A, @! o- B
// Initialize the variant that will hold the BSTR. Set the variant's 3 X1 Z9 q2 R1 u7 A# W, Z. u5 @// type flag to indicate the fact that this variant holds a BSTR. Place the , [# C; m( g; M; a+ s3 V7 O// BSTR into the variant structure. * I4 z; b3 {7 p( U3 q# m6 J" K6 J5 U) b3 n' t6 P* r
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) g6 Z% Y: Z$ s+ c) k
0 m8 @6 @3 Q& V+ k( J& V0 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# O+ O4 z" C b) W
VariantInit(&requestVariant[0]); 9 N& @$ i- }1 R requestVariant[0].vt = VT_BSTR; Z' J/ q9 b! J* p! G& b7 v
requestVariant[0].bstrVal = itemStr; 7 l2 ?; R$ W j # u) }* S/ c- t" s& A/ g topicStr = SysAllocString((WCHAR *) L"system"); 9 g$ n2 ^6 ]" x a VariantInit(&requestVariant[1]); % D# o) k" W. T& A
requestVariant[1].vt = VT_BSTR;) w, D- ^$ h; k6 M! [
requestVariant[1].bstrVal = topicStr;, l, y9 x0 Q7 |: c& {
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// Set the DISPPARAMS structure that holds the variant.' ^( P/ i! c2 E) D( t! {) O7 a