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: 8 m. ^+ {5 M8 \+ |+ E% o3 l! oName = (WCHAR *) L"Poke"; + o5 H$ G, h. B4 L [$ [5 W6 } " }! C" U- m1 {6 Q% U3 r hr = m_pDisp->GetIDsOfNames ( 1 O1 |4 l0 Q m/ c& I) u# D IID_NULL, // reserved% R V1 u2 f+ u& x" e! I# E
&Name, // Array of names to get IDs for ; e& ~& }# o) h 1, // # of names in the array % x' y2 C: }( U T. I7 A LOCALE_SYSTEM_DEFAULT, // System locale 2 j1 b @" g. [/ f& V% w &pokeID); // Array of IDs to fill on output" y7 t' U p$ r7 k* a6 z
1 S1 h- x! R+ Q& p; H* k& B5 d if (hr)* G0 }1 P! q, m, k1 o- x; m/ o
{ 6 V$ G* p. b' G) \" E8 r/ S9 U MessageBox ("Get Poke Unsuccessful");2 _4 p' v, ?; W# k5 W! h& J& s! h4 t, z
return; & B; ?9 l. ~2 ]0 ~ } ( ]6 O9 z) {2 r& f& n) R , n3 ^. G5 [, o/**************************传递数据给extend**************************************/ ) ?8 g% l4 Y2 m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " m7 L/ C1 f2 }& L" } , Z+ N0 e! ^+ \2 T; F% d
valueStr = SysAllocString((WCHAR *) L"1232"); S6 B2 k( u: ]3 h" o, M
VariantInit(&pokeVariant[0]); ) E1 W% ?& N1 X pokeVariant[0].vt = VT_BSTR;* ~/ }; Y$ d8 P0 ]
pokeVariant[0].bstrVal = valueStr; % d) h8 h% `$ |+ S: M A: B* s( W. l/ d9 `/ x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! P, N6 t0 ^+ b/ O
VariantInit(&pokeVariant[1]); % [# y' D% ]4 {) m5 N! X6 t pokeVariant[1].vt = VT_BSTR; ' }8 _3 P+ v0 ^7 [1 K; ~3 K3 [ pokeVariant[1].bstrVal = itemStr;7 [3 e4 j6 |) G; C- {
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topicStr = SysAllocString((WCHAR *) L"system");- v6 L4 H: K9 g! A6 y+ _% f
VariantInit(&pokeVariant[2]); ' W- V5 Y8 F8 e) Q5 J
pokeVariant[2].vt = VT_BSTR; & r1 Y: I$ ?! O$ S) C) I+ O+ @ pokeVariant[2].bstrVal = topicStr; , C! x) W; D6 t, G/ N* W8 s* | 3 I0 w/ o! ?0 Z; E! e: L" o' z// Set the DISPPARAMS structure that holds the variant.+ H4 y, Z2 i1 x8 ~: o6 S+ {
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dp.rgvarg = pokeVariant; ' ^' }5 l! F, D( _ dp.cArgs = 3;, k' w+ Q+ n9 h
dp.rgdispidNamedArgs = NULL;8 A3 f) q" A4 a, z: j" s" T4 Z
dp.cNamedArgs = 0; * z% N9 {4 D1 e% s* q$ I) ~" x) z2 e( s% M% m7 r5 \
// Call IDispatch::Invoke()1 M ~; w' G$ f" ]
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hr = m_pDisp->Invoke(: f+ ~5 A/ c& ?9 D2 ~
pokeID, ! p0 v+ v9 ?5 {7 ]; e1 T IID_NULL, & u% P' Q2 J* K LOCALE_SYSTEM_DEFAULT,2 A" ?) i4 V* g6 R, L, s
DISPATCH_METHOD,1 D1 R2 m: H8 E- `' { ~
&dp, 2 m+ P/ Y7 o/ {, n NULL, ! X. D1 J4 E9 g( F: L% S7 h! h &ei, ; ?5 Y% f9 m. {& P: U6 K/ | &uiErr); . `4 P4 U) C% P# t: t3 Y% T# P# b. i1 ^$ X
SysFreeString(topicStr); $ s Z( M& A4 [2 e( z SysFreeString(itemStr);- I3 {; `# N" N+ t/ F- g
SysFreeString(valueStr);6 N- B4 o! ]- X$ P+ P5 ]
5 f5 Z9 f- G6 v& O7 h& s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???& s. O9 J, d) s% l
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???? 0 ]- w5 w0 _3 b: d2 h2 d$ K4 } r3 A* l9 x6 N: Y8 e1 E
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2.这是request的程序% {7 X. Y# e! e! s/ S* @
// Request a value from Extend/ R$ ], ` i9 A, M3 ~
// 4 A# M! m: q/ X) C2 s, d. D// Initialize the variant that will hold the BSTR. Set the variant's ~9 M' R+ o) n5 g
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 X: T+ D. p7 d9 F0 t3 y$ v* H// BSTR into the variant structure.9 m9 V$ |5 f+ ~# X! k+ R3 ^
4 ^/ p: a- U$ H4 ^! ]! | requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ ^" ?- j+ Z; [( [/ @) n + b0 J5 J1 I" Y* J' \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . y( J2 h; @) b9 @, i VariantInit(&requestVariant[0]); / \7 g2 H+ t7 }( R" o requestVariant[0].vt = VT_BSTR;& l- R8 z c3 ?# C5 w
requestVariant[0].bstrVal = itemStr; & }7 t$ Q/ {2 q5 n1 O1 Y5 a7 Y ! y7 G! H2 i# J) ] topicStr = SysAllocString((WCHAR *) L"system"); % F5 m2 d+ j) }" L$ q" r/ n VariantInit(&requestVariant[1]); 1 X* X$ t" f! R# S$ `* S
requestVariant[1].vt = VT_BSTR;0 L, {' V- ^# p! T! i
requestVariant[1].bstrVal = topicStr;1 l: m/ {8 P4 e1 y( L
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// Set the DISPPARAMS structure that holds the variant. : h3 }2 f1 }) g) l% s3 n! p! b5 P) @" K+ z1 Y6 m0 f3 F6 u- y
dp2.rgvarg = requestVariant;2 \, m2 [ K* ]- i. b
dp2.cArgs = 2; , b0 E* }, Y C7 ?5 `0 c: C3 Q dp2.rgdispidNamedArgs = NULL;: l# ~7 Y9 D% [8 U; F
dp2.cNamedArgs = 0;' \( n$ E( t/ ^& T; i z, t
\, J# H8 d' C/ h var.vt = VT_EMPTY;2 T: ?7 A% _; c- f1 e$ I# j; U2 W3 ]1 B
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// Call IDispatch::Invoke() ! I3 Z1 k" l, R% ~2 K, f( \: T* p' ]1 N8 y- S1 l s% c7 M
hr = m_pDisp->Invoke(/ U6 O% a" x% x1 D
requestID, Y. u, s) S% U6 x8 M* x
IID_NULL,2 `4 v: F% r; R6 _/ `1 P- `
LOCALE_SYSTEM_DEFAULT, # n' j" q W- z9 Z7 a5 x w6 ?4 a DISPATCH_METHOD,% C" ^! D/ z" Y) ?: w6 H/ ~
&dp2,6 o/ |0 j( S2 `. z7 f: `
&var, 0 q q' j( f0 t) k% q- z &ei, % b1 V# i& Q9 W) \: j7 g# a &uiErr);: c- p& a* w5 y2 U F6 w
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SysFreeString(topicStr);3 y( ^% _" G$ X8 ^& |$ B; |( S0 k( Q
SysFreeString(itemStr); . S' D" ^9 c% Q7 [请问该程序是获得extend里面的哪个值?! a! M* E2 e# B
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????