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:; b, h( t% n) y/ `0 g' g$ L# t8 t
Name = (WCHAR *) L"Poke";6 `7 x8 J+ ^# i9 w& R+ P% p1 k
+ N ]# ~$ ]) w9 v hr = m_pDisp->GetIDsOfNames ( - m3 K, p' m' {! ~' ]4 E IID_NULL, // reserved! u" |% }7 m8 K- A5 h7 F
&Name, // Array of names to get IDs for2 a' ]2 M0 z1 _$ ~+ U
1, // # of names in the array 4 z6 U! x! {4 q" q+ D LOCALE_SYSTEM_DEFAULT, // System locale7 d" I+ } `6 I: ~6 u* A* a7 B4 y6 f3 o
&pokeID); // Array of IDs to fill on output& Z7 g$ W7 }; G: ?
0 \# ^( @- i; y1 P. |( L: o: F if (hr) / O g, G0 |2 j% } {' G/ ]; D1 Q+ c' V" q# Y+ i
MessageBox ("Get Poke Unsuccessful"); ( ~ K" r5 R, O6 s return; 4 _, ^: h4 f" ] W) j } # a8 e7 T' r0 W4 U 1 K: q$ l. U. T3 i/ y/**************************传递数据给extend**************************************/ % ]* M$ F* x; h9 |/ j: \& L$ x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . e: y$ ^5 j; b% B# h 9 h0 `" J! E9 J S: ^6 p valueStr = SysAllocString((WCHAR *) L"1232"); 9 p; v2 [1 w8 \2 z# U. q VariantInit(&pokeVariant[0]); & T" W+ M/ M0 w4 x2 H/ z- Z/ N pokeVariant[0].vt = VT_BSTR; : z4 O# o" _) ] pokeVariant[0].bstrVal = valueStr; : v) r' \% G1 u+ x! I , E p& N# z9 s9 ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ]0 f( n, ^! q' D: {% P9 Z, @$ \
VariantInit(&pokeVariant[1]); ( c& j9 |7 S3 I& o2 h
pokeVariant[1].vt = VT_BSTR; . |3 q" N' p( t: G/ N pokeVariant[1].bstrVal = itemStr; 8 |( W4 L6 L3 ^9 ]4 v7 \; I$ P 4 L0 |+ P7 N, V* ?' V1 h. M& d" ~ topicStr = SysAllocString((WCHAR *) L"system");$ h* I, i, |3 ?, p; K
VariantInit(&pokeVariant[2]); 3 o( f+ [9 [- b& s6 V pokeVariant[2].vt = VT_BSTR;/ x& x4 _% ]# K; w# r% u' v
pokeVariant[2].bstrVal = topicStr;3 p$ [' d. s# J/ m: L
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// Set the DISPPARAMS structure that holds the variant. $ R+ |! Y5 z9 Y# i' ?# i! p0 U! U# m1 D5 o# Q) {. l
dp.rgvarg = pokeVariant;& e6 M! M% ~% R/ q% A2 a: `+ } h
dp.cArgs = 3;- V2 k1 q6 E2 Z% b$ w, S1 _: V
dp.rgdispidNamedArgs = NULL; $ Z% \/ `& z# x- b3 [ dp.cNamedArgs = 0;8 Y* }+ \- B+ X0 }; I& |' c+ r |
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// Call IDispatch::Invoke() 8 k, [9 u1 g- k. O% @8 ?4 }: } ! d/ Z& n9 x1 l hr = m_pDisp->Invoke( " n; @* J/ f- \) U+ e% p( H! @ pokeID, & T+ o4 S p; r IID_NULL,$ j @6 b o; {9 h% }1 F
LOCALE_SYSTEM_DEFAULT, 9 @* m( t" T1 b DISPATCH_METHOD, ' u8 j( |% a8 T, k. j2 S &dp, 9 M* a K0 F& r) i8 { NULL,1 P) B7 C) e% X/ o
&ei, ) z4 L2 F" h$ Y& x. g- \& c: [ &uiErr); + V7 b, L. l" I6 J7 g+ z, z9 n% z8 N8 ~0 ?& R
SysFreeString(topicStr); 1 n; I, b% M/ ~( v% p7 B SysFreeString(itemStr);8 q9 q0 v$ P' |1 W O
SysFreeString(valueStr); * J5 C8 [! I- E/ J1 K" W ; i$ z4 ?' |3 P* Y9 F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 _. B1 [$ _9 E1 i7 H2 L& M3 J) H: w4 w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????& L; z; }: o$ X
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2.这是request的程序* a& i. t6 |5 t9 a
// Request a value from Extend ' T4 E5 M, a; |$ o8 @$ C// p* g2 z5 }3 N, V1 D+ i
// Initialize the variant that will hold the BSTR. Set the variant's - N$ O" H0 A& g w// type flag to indicate the fact that this variant holds a BSTR. Place the : v' _; Y% J1 U8 p// BSTR into the variant structure. z4 j, P, U. i: ^+ n7 \9 P, s. V; A/ ?
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 n/ w: [" U' F# ~& M1 [, s3 C
/ |5 i& T4 m. y }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 ?9 D) b# T. F8 E$ m: E) N VariantInit(&requestVariant[0]); 3 x& Q$ J. G$ U# h6 f requestVariant[0].vt = VT_BSTR;) Y6 m4 c, _9 F* Y1 J
requestVariant[0].bstrVal = itemStr; 6 p$ ]: Q! g L' s- R u5 J- f- M0 O F( c: k
topicStr = SysAllocString((WCHAR *) L"system");1 _0 [$ H0 t8 O* \, c8 r t
VariantInit(&requestVariant[1]); % U3 P/ t( T3 `. N requestVariant[1].vt = VT_BSTR; ! z, P: N0 n" k5 Z9 A5 O c requestVariant[1].bstrVal = topicStr;6 b- g7 p" _5 F6 d
- Z( e; Q O y. C* D4 t// Set the DISPPARAMS structure that holds the variant.0 {, w7 ~; I2 W; e3 D" ]5 N
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dp2.rgvarg = requestVariant;0 t" r9 }& A+ J( D( K: x
dp2.cArgs = 2;* Z+ ~# \ N |
dp2.rgdispidNamedArgs = NULL; , s8 V$ j% f6 P, E" S$ R dp2.cNamedArgs = 0;7 a$ |1 g* r$ A2 f/ i Z8 A
7 N0 h7 _9 D) h var.vt = VT_EMPTY; - z% y. ?4 o6 H. r( K) B 3 g! E5 Q1 n3 ^ U// Call IDispatch::Invoke() ! w, u \. U: C $ x& }9 q! F8 m hr = m_pDisp->Invoke(" J* ^; X/ U2 z$ d& m4 M
requestID, y" ]% O4 a. Y* ~' H% K+ H IID_NULL,3 ?- P' a P+ V( D+ Y3 ?, i1 \5 t8 E
LOCALE_SYSTEM_DEFAULT, `/ \( e" M* r" t. _3 A/ R" m DISPATCH_METHOD,! b; t; g) _6 P3 N; S# d/ ?; _
&dp2,: V! j/ N9 @3 Q8 [+ h
&var,' m5 |4 x# k; h
&ei,0 a1 D6 h1 I/ {/ k% \! v
&uiErr);: E) z' }" R8 f c9 b4 g! o6 |
( S( W# a7 I, [4 w' Y SysFreeString(topicStr);8 P7 l. D3 F {. W$ E5 g U- d& f3 r
SysFreeString(itemStr);& y7 D# k4 k$ f3 T3 A
请问该程序是获得extend里面的哪个值? 1 J# x; }6 j5 k; g# M, `9 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????