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: U) y9 G/ g( m
Name = (WCHAR *) L"Poke";# ^/ W1 z) w, \5 U
- k) F9 o, c. u" b hr = m_pDisp->GetIDsOfNames ( + E- E8 A+ k w: E9 | IID_NULL, // reserved # Z q9 M- u5 i( H &Name, // Array of names to get IDs for8 x4 X5 l# v$ p1 ]5 J) d
1, // # of names in the array! S/ S0 d E9 j$ }3 z$ H
LOCALE_SYSTEM_DEFAULT, // System locale4 U+ r" a. J' @4 C# T# u6 G
&pokeID); // Array of IDs to fill on output ( Z* p: K1 p6 h : V( [) w( i& [: r. y; v; ?$ l if (hr) 5 p1 O5 O3 y2 ~+ U9 i- A: } { 5 i. s* _. c* @/ g, g/ o MessageBox ("Get Poke Unsuccessful"); 9 ]2 F4 i" X T2 H7 F return; 8 P: r8 u% p% K W* y( j* ?" A }" C* e1 b. H9 t* J3 I" r
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/**************************传递数据给extend**************************************/3 x8 E/ x4 N% |/ w! [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); J/ h/ L- H; z; R% n7 n
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valueStr = SysAllocString((WCHAR *) L"1232"); 2 ] D; _3 `7 y& R Z- H3 z VariantInit(&pokeVariant[0]); + g. Z, z- L$ M6 Q1 L
pokeVariant[0].vt = VT_BSTR;; m- A+ m: N4 c* l, n
pokeVariant[0].bstrVal = valueStr; + a$ j. w' s5 x+ G. O* z / \$ Z) q( E9 _6 R' } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 Y% ?, H% y/ C4 ]8 m1 J8 F1 d2 s
VariantInit(&pokeVariant[1]); $ G, V# R" a/ Q, M9 S2 h
pokeVariant[1].vt = VT_BSTR; ' w. Z9 d# n' g0 M pokeVariant[1].bstrVal = itemStr; 9 N+ f( ?( q4 Z; O- {' b6 {7 ?4 r9 L! S% a# ]7 m4 [
topicStr = SysAllocString((WCHAR *) L"system"); 7 x2 L( g6 L7 | j7 A+ e VariantInit(&pokeVariant[2]); % w- S- ]4 ]/ V% e5 g
pokeVariant[2].vt = VT_BSTR;, s% W; {+ ^6 b: F1 a. y- `
pokeVariant[2].bstrVal = topicStr;- j4 x" U% ]1 k, {+ W8 l
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// Set the DISPPARAMS structure that holds the variant. 8 @7 a* b% N8 v5 i* ]8 m: Z4 p) z: O4 B2 ^, J- L2 e4 |
dp.rgvarg = pokeVariant;. V* c! r/ ]* }! v+ o
dp.cArgs = 3; # C5 z" m( b% H) c' K1 o dp.rgdispidNamedArgs = NULL;# N! ?& s6 s+ w
dp.cNamedArgs = 0; / k. C% A8 B' P3 S - ], P H) ?* m4 k// Call IDispatch::Invoke() ' `/ z" y8 D' C' `. Z9 k' w+ y+ Q+ d 7 N) L5 v8 g& g: c& j2 b hr = m_pDisp->Invoke(( b5 Y0 W$ ~3 x
pokeID,2 ], M, K5 C% [% K2 ~
IID_NULL, + D4 _, @, n) _( B LOCALE_SYSTEM_DEFAULT, ; T! \/ h% b, I& K" V DISPATCH_METHOD,) ?0 i3 b7 N: G
&dp, 7 _# o5 g: I! n$ g* y, e. o: F NULL,! M: C @9 C$ m* l. }, l
&ei,4 f3 f! m) B; y2 N
&uiErr); 9 C5 d' h F& ?$ T9 Z( r/ t1 o+ t' _6 N
SysFreeString(topicStr); 7 K2 P" M& @- h0 ^ SysFreeString(itemStr); 5 j3 q) ^( X3 U9 | SysFreeString(valueStr);6 U8 a# _3 j4 k# u
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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???/ c& D! E% V1 j5 L) u
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????5 t3 ?* D0 y$ @% W$ n) H3 r f
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2.这是request的程序$ O. o; z' U$ ?/ R9 h1 N
// Request a value from Extend& N; V9 j; d3 o. M5 Z4 d, z
//6 S" t! [0 V" y; v( f! k
// Initialize the variant that will hold the BSTR. Set the variant's 0 I9 {$ }; |2 P% m, E// type flag to indicate the fact that this variant holds a BSTR. Place the/ d& ?( i# F8 `& y* L$ K0 U
// BSTR into the variant structure.2 e! F) u- H+ u
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# F6 u/ u& F1 \$ T% _- D
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* F* i' M3 e& S- Z8 z. w. T
VariantInit(&requestVariant[0]); % z) G3 C; O/ w requestVariant[0].vt = VT_BSTR;# _3 _( T0 N8 g" I% J: |
requestVariant[0].bstrVal = itemStr; 0 n5 r$ ?1 H! X) _& ]$ j; j0 V( M1 t) J5 k
topicStr = SysAllocString((WCHAR *) L"system");& |& S2 a3 U4 K( E6 d
VariantInit(&requestVariant[1]); 3 p- e) |! x5 B7 b- s requestVariant[1].vt = VT_BSTR;( u z: W1 o: |+ q" V
requestVariant[1].bstrVal = topicStr;- m) \1 O7 G" w' i& t7 E
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// Set the DISPPARAMS structure that holds the variant. # ~) p; b. B2 `. f6 q, f7 m 8 Q" V0 h8 P8 u4 O dp2.rgvarg = requestVariant;% n4 p3 ?7 }" P8 y
dp2.cArgs = 2; % z* {9 c' G% l dp2.rgdispidNamedArgs = NULL;: F4 f, N* t+ R. _" `3 U# N
dp2.cNamedArgs = 0; C0 @/ x5 @- ` B" g: h1 [ z
/ x I8 Y( c7 ?4 z var.vt = VT_EMPTY;: p# U3 i: M; {. {" L
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// Call IDispatch::Invoke(): I0 I& F" S5 h
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hr = m_pDisp->Invoke(8 _! e6 E3 h$ r- W4 L
requestID, 7 P0 O# d' i/ D4 B IID_NULL, 7 w9 W: `' }* N, e' q LOCALE_SYSTEM_DEFAULT, . V, E* S$ _( e: }8 _ DISPATCH_METHOD,/ m2 D; R" O$ I7 l. V
&dp2,9 m- ]$ F, ~. S m( f
&var,) T! p- L1 X0 T# r# `
&ei,4 c. D }" ?* w: a: ~
&uiErr); 0 W- Q- C" ?5 T h3 r" x9 y5 w4 Y1 e/ i2 @
SysFreeString(topicStr);9 Z) O% J0 h& I) z" @
SysFreeString(itemStr); ; r: _+ x; h2 k1 Q0 I请问该程序是获得extend里面的哪个值? 0 k" m; k b# Q$ E* }& h$ 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????