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# s' q, A GName = (WCHAR *) L"Poke";7 p" z/ n3 {9 T3 k
7 R( U8 `) p. X, P \8 _ h hr = m_pDisp->GetIDsOfNames (, k! J: ]0 Q9 e0 P( l8 V7 B: G
IID_NULL, // reserved 6 c# \& l6 p& ^' w0 f; o2 `* i; C &Name, // Array of names to get IDs for+ t0 r% i8 a2 G1 G' Y
1, // # of names in the array. D0 ]$ |1 P$ A$ w2 w
LOCALE_SYSTEM_DEFAULT, // System locale 6 c$ N% X. W! F &pokeID); // Array of IDs to fill on output 6 j. Z3 z( F: u7 I6 E : C; }/ l3 S+ T9 l: O* ^ if (hr)6 j- P% M( o8 b$ O0 ^% d
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MessageBox ("Get Poke Unsuccessful"); 6 L/ g. L' G, c) S: B6 D, S return; ' @0 n& Q7 o- t( z5 `2 v% E% d: m }. n2 k5 g' i7 A1 ?, z
9 p7 V. e6 f9 B9 J! Y4 e/**************************传递数据给extend**************************************/* G4 e+ i+ t! k1 E% F& L$ G
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 N; C( f) [) I9 W( { 5 N7 `% ~1 n q& ~5 ^
valueStr = SysAllocString((WCHAR *) L"1232");* \3 M$ h: `3 b( d/ `) L1 q
VariantInit(&pokeVariant[0]); 1 [9 R, w0 y0 K. H' n! h( c
pokeVariant[0].vt = VT_BSTR;" Q% Y) }- W F8 ]6 }
pokeVariant[0].bstrVal = valueStr;, {! W d9 \9 h6 |6 S' I E- _. j
5 ^7 m9 S( f" I2 }3 E% Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 }8 L8 t3 l1 M+ G* f" i! ] VariantInit(&pokeVariant[1]); / }. i6 j6 |. S3 u. o pokeVariant[1].vt = VT_BSTR; 0 s" i6 l% [6 s) t% h pokeVariant[1].bstrVal = itemStr;1 c. _5 w# A. z2 j n
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topicStr = SysAllocString((WCHAR *) L"system"); : }/ a9 }( ^- Q VariantInit(&pokeVariant[2]); 1 a8 Z. R% M4 K; A' H7 S
pokeVariant[2].vt = VT_BSTR;& N% J$ F; O( ^ N9 b
pokeVariant[2].bstrVal = topicStr;$ L7 X7 X) G3 x8 V) a
: _( |& q1 H$ ^/ t; a0 ` P// Set the DISPPARAMS structure that holds the variant. : f" A5 P) W2 W5 W6 ?8 G 2 T0 \% R& C. ~ dp.rgvarg = pokeVariant; . E4 x$ w7 h6 p- l dp.cArgs = 3; " F5 s' n, c$ C( X5 h/ q dp.rgdispidNamedArgs = NULL; 7 W! ?( V# i5 }4 ? dp.cNamedArgs = 0;. J) ]8 @, v; ~) n) ]5 D
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// Call IDispatch::Invoke()# s9 Q& T5 F/ t: k) `
! k( s$ Q7 n+ g. B4 h8 L hr = m_pDisp->Invoke(7 f+ `& k! J; G& s. a/ m/ r8 k& z6 K
pokeID,. t; _1 A5 u6 g1 u
IID_NULL,) I6 x6 m* }% n1 a/ k
LOCALE_SYSTEM_DEFAULT,4 l; C* J5 J. d+ d! |$ J" r
DISPATCH_METHOD,( N7 q( G1 ^, |( G! |, a* n
&dp, ' W, v; W$ _' S7 w4 P( \ NULL, ' R5 S$ \6 d# z7 u; @1 P &ei, `. S+ L. F0 @; t+ O
&uiErr);8 R1 ?/ R4 ?4 |0 U. m6 E
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SysFreeString(topicStr); 3 n" Q3 a, z) F- d8 V SysFreeString(itemStr); 9 Y/ T# c- @8 m% I SysFreeString(valueStr);* {; F: \+ u0 Y( ]; C3 s1 P1 p
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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??? f1 ?0 T) Z: J! t( j6 |: F! x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????: L3 q0 x' s: V t! r2 C' U$ ^
# Z" F4 \% u% P D( p6 r9 w: _ # `2 `& t n _2.这是request的程序" y8 d3 j/ s) ?9 t7 y5 o
// Request a value from Extend5 Q, D; p6 u% Y8 y
//# ^/ h3 H' |; X6 V3 s/ K
// Initialize the variant that will hold the BSTR. Set the variant's # W/ l8 ^' _+ a- \// type flag to indicate the fact that this variant holds a BSTR. Place the - ^6 s& S6 B( z: F( M5 e# F// BSTR into the variant structure.0 P w, I: M1 [1 u1 i4 K' i
6 Z. H' r) g3 m# F1 }/ L) P0 K c requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 B- O. G+ V' F6 `, I ! x- M; k, f# A9 o& ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 _" K$ S, U" I0 U5 g6 N0 Q, u% G2 D VariantInit(&requestVariant[0]); 4 ?- X% U* a& X, f" _ requestVariant[0].vt = VT_BSTR; * b w) B* B, B' R# [4 K requestVariant[0].bstrVal = itemStr;- Y3 f+ T# h/ t9 Q9 \; @' b
1 B, V1 j& s7 H8 m topicStr = SysAllocString((WCHAR *) L"system");4 K2 h7 d* }1 P4 L4 y" A$ {
VariantInit(&requestVariant[1]); 2 C. x8 P, X3 N. x
requestVariant[1].vt = VT_BSTR;! a# n4 A. H2 n# k0 X
requestVariant[1].bstrVal = topicStr;# v* D( n4 V3 C
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// Set the DISPPARAMS structure that holds the variant./ {+ g& L0 J0 U+ Q
7 R2 y. O. \, _" Q* S" Y dp2.rgvarg = requestVariant; ) T4 s P, G# K8 c, Q+ i* q! ^# Z dp2.cArgs = 2; $ I. M9 W' [* J1 d( G3 Y% T5 J dp2.rgdispidNamedArgs = NULL; S9 f' b. `( G) ]) C3 m6 Y dp2.cNamedArgs = 0;- n8 ~' }. x7 e9 W# X" h _1 }
/ _% a& M( F, r3 f2 f var.vt = VT_EMPTY; w( L, A* _0 g1 y" v; \3 D" O/ Q8 L( E3 m" X- I8 D# A7 N
// Call IDispatch::Invoke() 7 ]% P# G+ g, t d+ W. D- n' R2 J
hr = m_pDisp->Invoke(5 y8 H, u# F, f$ V# W6 L$ r5 ` Y
requestID, % e. [, G4 {" a2 H$ D& ~ IID_NULL,6 x( U( W4 N# B9 Q- q. k! v' f
LOCALE_SYSTEM_DEFAULT, m! Y% o" ] h. O0 U& i( u; v" @
DISPATCH_METHOD,* |1 A1 J5 T1 m6 H0 T& ~; s
&dp2,! B$ k6 X! }* c9 H6 I! K9 q
&var,6 q% ~6 Q. u4 }6 h {
&ei,2 P; s" M5 F. g' @
&uiErr);, l0 _, x* R! u0 b+ Y
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SysFreeString(topicStr);4 w d0 {/ n5 ?! L2 C
SysFreeString(itemStr); ! c6 U3 q0 Z( s& |3 G请问该程序是获得extend里面的哪个值?+ ~+ o- B' X2 v! m; ]9 q+ R2 ^
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????