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: , W) P6 w0 l/ Y |Name = (WCHAR *) L"Poke"; 6 s7 y# h& T4 Y- _1 T6 U2 ~ + d% j. V' U; v
hr = m_pDisp->GetIDsOfNames ( % u% ?! n6 c5 m2 s3 `/ h4 A! L IID_NULL, // reserved % U2 @, n7 ?1 F$ X &Name, // Array of names to get IDs for / [* t5 I0 X( j- L1 X* {- f0 U 1, // # of names in the array 1 m1 u5 _2 a* j+ u' j LOCALE_SYSTEM_DEFAULT, // System locale7 {- \+ V: [! [. H( A1 q0 D
&pokeID); // Array of IDs to fill on output u8 |4 r; F, g/ D/ d! y / F& c: N5 M3 j8 v
if (hr) 8 R7 n1 M* e( a1 g) E2 K ] {8 y! @4 [. V: h" @7 E7 ~) \
MessageBox ("Get Poke Unsuccessful"); 8 W* ~' l) @- @6 o, i" J8 a4 D return; - d$ _9 O& _/ L# L# f1 l4 ` }2 y: h& ~0 s- t: ~2 Z! {3 S
q2 q# g% ^* h& s( W4 ]/**************************传递数据给extend**************************************/ 4 `. y6 x, |) B0 ~( q l- S/ g/ S, X8 | pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 m d3 H4 i9 Q8 u ' |: q2 Y1 V" ^2 X
valueStr = SysAllocString((WCHAR *) L"1232"); 4 [# z3 ~! m9 ]. \+ Z7 r VariantInit(&pokeVariant[0]); * I6 [ U9 M+ |, n5 n9 Y& U# P pokeVariant[0].vt = VT_BSTR; 6 \0 J( G. M+ A# W4 D pokeVariant[0].bstrVal = valueStr; . I9 } B1 O( i' B& y. b! f! Y4 ^. M7 w/ X4 V, Q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: d( Y) x. i3 G/ d
VariantInit(&pokeVariant[1]); % L# A8 s; d! v @ i' j- Q pokeVariant[1].vt = VT_BSTR; 3 D1 J1 A$ [% ?/ W; t pokeVariant[1].bstrVal = itemStr; ' U# i4 k0 v' J) A& ~8 W; ?, O x. j3 ?, p7 c0 x& h
topicStr = SysAllocString((WCHAR *) L"system");; Y3 m e* {: J2 U
VariantInit(&pokeVariant[2]); ( k6 K7 `( ~& k+ t1 q( F( i& F
pokeVariant[2].vt = VT_BSTR; 8 T; k: Z4 m$ t2 b$ O1 {% \, e pokeVariant[2].bstrVal = topicStr;; ~) ~) w1 }* K+ j5 v
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// Set the DISPPARAMS structure that holds the variant. - G# H" k& d! k. _) D a I" T4 S u 9 _5 x" a/ Z+ ^, U4 f! r dp.rgvarg = pokeVariant; % N4 P& C5 n# h f! N& y& a- \* k, W: K dp.cArgs = 3; $ S! d4 z5 l/ Y2 z/ a2 n dp.rgdispidNamedArgs = NULL; / ~/ U" X& U3 }8 g' G dp.cNamedArgs = 0;- u# s- }4 R2 n& o6 Y b( E
3 |/ L, H9 T& V! w0 J, [
// Call IDispatch::Invoke()% S( l5 B3 {4 K' h, y
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hr = m_pDisp->Invoke( / X& r) Q) V0 n# q2 [, } @) p pokeID," ^+ c( q: C3 T/ E$ N. C
IID_NULL, * D" O& b' d9 @' d+ P LOCALE_SYSTEM_DEFAULT,4 M Q4 g1 c7 b, L
DISPATCH_METHOD,8 u# B' S1 R+ `+ P
&dp, G% U. u! H4 G0 ^& ?9 J
NULL, ' `+ y( y8 Y/ U1 ], @" f &ei, 8 m: j/ x8 c! ?# Y, t& r &uiErr);* f3 j2 i D0 k! r
9 a0 C4 t9 w% X: m
SysFreeString(topicStr); 9 T; S9 Z5 o$ \+ ]) J SysFreeString(itemStr); ( t- F- Y6 g" S( ^4 T; i+ } SysFreeString(valueStr); 2 M5 f: q F' Z' \( W& A' F G) w# ?/ t' M* p" J _. A; ]$ k
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# K/ B( Z+ g! v S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????8 d$ G3 }+ [4 P! L1 E: Z% A0 [ i9 _
9 b1 @8 v \# f; U9 T! m' n9 a 7 O1 L& c; \5 A2 U- [8 C, f2.这是request的程序9 o k' a0 }) L3 W7 D, r
// Request a value from Extend) M: m. d8 F, S0 ]9 K3 j& X
//3 G5 J2 ?9 c/ j) G1 T
// Initialize the variant that will hold the BSTR. Set the variant's5 ?1 }6 c/ y# G
// type flag to indicate the fact that this variant holds a BSTR. Place the " V& x D1 Z- C7 s// BSTR into the variant structure.6 ^& y" |, b+ a2 t- A* @
* L3 C6 d8 X. ?1 U
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: P7 E1 @+ z4 H f2 O% l( K7 r
8 e7 b3 |& w. M) x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , a, o) Q: Z' v \% l# L5 I VariantInit(&requestVariant[0]); 3 ^* B* j, q j. q requestVariant[0].vt = VT_BSTR;. a3 d# p1 F% h5 t
requestVariant[0].bstrVal = itemStr; " E3 Z( G- V" J, ^4 x * f" M% P* b/ f topicStr = SysAllocString((WCHAR *) L"system"); / C' Q% I4 w R6 K# s7 P VariantInit(&requestVariant[1]); . y: t l' }6 w
requestVariant[1].vt = VT_BSTR;7 i9 e7 w: e& z L
requestVariant[1].bstrVal = topicStr; % w4 R- ]$ m J+ M1 f; y- x; X% G: Q: v
// Set the DISPPARAMS structure that holds the variant.! W$ H/ U/ m: m
V8 I( V5 O) ~. }7 E dp2.rgvarg = requestVariant;7 L' o+ j' i$ w3 A6 Q3 F
dp2.cArgs = 2; . B+ _- o: d: g, p7 I q6 N dp2.rgdispidNamedArgs = NULL; & F9 g% @3 p" I( V ? dp2.cNamedArgs = 0; 0 Y# ~" |2 v+ M. b) r& E) p % {5 t/ i7 r+ S, K S var.vt = VT_EMPTY; : M/ i: k* H; c0 T- [, H7 H+ V! s8 x( N; G3 H* z
// Call IDispatch::Invoke() : Q0 z& Z3 w- n# C# |. U9 w" O' M & \4 w% |/ a% G& o5 L P# C hr = m_pDisp->Invoke(, P/ \- Y) [* v, G/ s) i7 _ J/ C J
requestID, I+ r. H) m5 `3 O IID_NULL,/ B: Q" K/ ~9 c8 O
LOCALE_SYSTEM_DEFAULT,; l n5 H5 V, f5 Z
DISPATCH_METHOD, 1 y' `& a: F3 o* l0 X &dp2, 7 c- O8 p4 f8 l3 e &var,9 q* Y h$ k1 g4 f6 Z0 T: q0 f
&ei,8 s! b- {- Q. ~( \+ f. S, ~
&uiErr); j7 q3 l2 h# _& N& m
( N' y& M6 d; f( N" M5 l" S SysFreeString(topicStr); - v8 X: G8 v& l8 B+ q7 { SysFreeString(itemStr);7 T- ?0 f$ `* ?3 D
请问该程序是获得extend里面的哪个值?4 m! Q+ O" k/ w7 ?2 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????