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 G& U* ]6 x8 R" ~
Name = (WCHAR *) L"Poke"; i& U9 O( P) w @5 b. k / H6 a+ }) i+ Q& J
hr = m_pDisp->GetIDsOfNames (3 B" ~1 _2 Z" n+ L
IID_NULL, // reserved* ]/ {0 N$ u/ L# i
&Name, // Array of names to get IDs for/ X1 @- J( ?) V, n( R8 @: i ?" ?
1, // # of names in the array; D; s* [5 `. v: s3 x2 ?" l: |
LOCALE_SYSTEM_DEFAULT, // System locale! b, b/ ~ u" Z# ^1 S
&pokeID); // Array of IDs to fill on output" I3 y- [* C. g5 ]% H- \$ y
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if (hr) . G3 a2 N0 ], \2 Z7 u7 y {2 c* X: f7 K: Q. N- r
MessageBox ("Get Poke Unsuccessful"); / }2 |% e _- t! m return; }+ C+ ?' L; q
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/**************************传递数据给extend**************************************/, b7 M, i; q7 W8 @
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( H& O) i0 e4 R; C# N3 X) z ; d4 x' K% D2 c7 q( m
valueStr = SysAllocString((WCHAR *) L"1232"); 1 Y% M1 C0 X& X! K) O$ U) S" E VariantInit(&pokeVariant[0]); 5 h) x- `3 M) S' Y. O' k
pokeVariant[0].vt = VT_BSTR; + M8 a+ N. |+ Q0 e% |8 V pokeVariant[0].bstrVal = valueStr; " X! J* O) `* {3 F% Q1 Z , K% r8 U) z G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' _$ K# H, z" K9 i+ c, Q4 B
VariantInit(&pokeVariant[1]); 2 s2 G! {' M8 C" g# Q2 S pokeVariant[1].vt = VT_BSTR; - `9 H6 S3 @" e* _" M pokeVariant[1].bstrVal = itemStr;* q3 e, z8 U. @ [/ ~ J4 `
" J |. ?! u* C" m. t8 a topicStr = SysAllocString((WCHAR *) L"system"); L# t5 u$ P& a7 x# S) c- h a
VariantInit(&pokeVariant[2]); : N$ z% D0 D. T7 {& a pokeVariant[2].vt = VT_BSTR;7 A6 j+ d$ P" j) W/ J- h" S
pokeVariant[2].bstrVal = topicStr; l& ]. T* R+ K% U7 J
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// Set the DISPPARAMS structure that holds the variant. 4 `+ _1 `1 y, N" E/ ? 5 I- G+ L5 A3 H L& X: \$ ~ dp.rgvarg = pokeVariant; : f7 s( H' u) W5 w5 ]+ m/ C dp.cArgs = 3; 4 i5 y6 A: d! E' W' ` dp.rgdispidNamedArgs = NULL;, h" Y5 ~$ F' p; f- O0 Z1 t
dp.cNamedArgs = 0; 4 D, m& m( t4 Q1 l" C- Q# T8 y! @5 e* c2 r# d
// Call IDispatch::Invoke() 5 q u5 q4 i$ W2 u b1 i, W; I8 [. A/ [- y0 p: t/ e
hr = m_pDisp->Invoke( 6 i% ^3 l4 p/ i" i! | pokeID, $ P$ U2 X6 S: p8 Y) @ IID_NULL,6 l' h$ B* R6 c2 h7 j" ~
LOCALE_SYSTEM_DEFAULT, ) O, e* r3 q4 L/ U% b% z3 s DISPATCH_METHOD,2 ~5 y* J6 ?$ P, b2 e% d7 c2 d7 t* |
&dp,* G( z7 o: l# G- z, i* r3 V- j
NULL, $ s t! s# g+ d. B2 U &ei, $ L# |9 Y% O% a S+ P &uiErr);3 c0 K' o4 E8 {3 j
7 J6 ]# f" X3 A+ U2 E0 B SysFreeString(topicStr);. M4 x. Y/ G, r) I$ N0 ^/ o
SysFreeString(itemStr);! j9 c- _0 c! H9 R& j$ T
SysFreeString(valueStr);6 S/ q! ~2 S0 D1 F
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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???# J, m* {5 t$ G" j' K& Q& n
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???? ' r) h' r; o. u1 N* A% }" y( S7 p# Z4 _; u1 A
5 p4 x& H8 p: d3 l: K2.这是request的程序 7 n: M5 U) L* o7 ^// Request a value from Extend. x" B4 J1 o6 x6 A( o
//* J4 K5 S" ]- x; D) ^" `
// Initialize the variant that will hold the BSTR. Set the variant's 9 I: C8 r2 K) G) o- _) P// type flag to indicate the fact that this variant holds a BSTR. Place the1 e: J# w/ d9 A& |+ t2 ]
// BSTR into the variant structure.* F8 P, g& P. Z% I' _9 k
; S' S* d1 {) w1 E3 P! j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 q) l/ ^2 X H1 o7 Z- p4 n" ? 9 m2 P2 _* F3 }3 Y/ f1 B- f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & e, x! y5 e: b9 R( A U VariantInit(&requestVariant[0]); # V- h, _! R* H& K% ~, X0 m
requestVariant[0].vt = VT_BSTR;' R8 h8 L5 m: s+ l7 k1 ~
requestVariant[0].bstrVal = itemStr;+ h3 ^: C, h+ J: p& p; r
& ^/ q3 N7 u$ F; v topicStr = SysAllocString((WCHAR *) L"system"); 6 E, `, q1 z9 n/ Y+ _; z1 D' F! T( b VariantInit(&requestVariant[1]); / n" N. E& e4 A4 x) v7 `) u. S1 j requestVariant[1].vt = VT_BSTR; 0 K; P4 n9 z4 @7 Z requestVariant[1].bstrVal = topicStr;" O6 V3 Z& j8 M4 @9 J3 n0 k3 O4 T
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// Set the DISPPARAMS structure that holds the variant. Q7 E& p% W8 [" B% `9 [4 t l/ \
dp2.rgvarg = requestVariant;/ z* q5 T2 z/ Z4 c" N! C
dp2.cArgs = 2; 2 v" q7 u- o( M1 l( }" O5 z3 `- P+ W* P* ` dp2.rgdispidNamedArgs = NULL; ( h' ?* K3 v1 E1 m dp2.cNamedArgs = 0;5 `) Y) K' G2 F' [# G) G7 x
* `- _: o U% s& Q. B4 a var.vt = VT_EMPTY;+ K) q+ B4 a& X8 F
8 Y- h5 a* c0 h: d// Call IDispatch::Invoke()' T _* Q" D( z& f
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hr = m_pDisp->Invoke($ a( |* e3 P- G7 i8 v! r T1 J
requestID, 8 f M# M6 n/ M7 L; i4 g IID_NULL, / `" Q. {8 X2 y LOCALE_SYSTEM_DEFAULT, ! N: z: T& k; o) k DISPATCH_METHOD, $ y+ f$ \4 ~' V &dp2,1 ?! p" u4 k0 ?# v
&var, # m4 K4 y$ ]1 J; l &ei,6 ^/ l3 |" c8 l) w7 S+ e/ t
&uiErr); ; k3 j8 T) Y$ L1 g& C/ y' n' I: A( u9 s3 A$ S: V) Q7 v; j& t( A
SysFreeString(topicStr); 2 ~( u- k; r; I2 b/ d9 u SysFreeString(itemStr); ! h0 J2 u7 \% l6 c7 W) S请问该程序是获得extend里面的哪个值?5 U' X8 B0 d8 P" V: w
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????