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: $ r6 E5 e4 r. |$ v3 g) w6 K" d9 EName = (WCHAR *) L"Poke";' \8 z$ [( W1 m' q3 Q! W
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hr = m_pDisp->GetIDsOfNames (% A! ^+ u6 `6 e; ~) t I9 m
IID_NULL, // reserved0 E' Q& f& e$ y0 v# p
&Name, // Array of names to get IDs for* Q- g% ]. e e3 Y7 e
1, // # of names in the array - Y7 B% ?& s8 B- Y LOCALE_SYSTEM_DEFAULT, // System locale" m* z7 c" u' ` x: ?
&pokeID); // Array of IDs to fill on output % f9 i4 j. t- N3 { 2 A4 ~. o; S8 \8 j; n$ j if (hr) ' [9 ?) ^4 {- G% `. ]& Q$ o6 O { 0 O7 L; h/ l) C k! b; j2 ? MessageBox ("Get Poke Unsuccessful"); ' _) b Q- C" c& a2 N8 t! M return;: P4 |0 k- [; H' k* D
} * g Q f5 h" [. D1 J + F/ v; J% Q M2 R @9 \/**************************传递数据给extend**************************************/ / C5 k- C3 G- x/ y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% }+ E& s* j8 G2 n9 t3 j* F
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valueStr = SysAllocString((WCHAR *) L"1232"); * W6 V4 A/ R8 m2 K; c" z S VariantInit(&pokeVariant[0]); 4 H$ H& c( D7 V4 g' p1 R9 _+ R pokeVariant[0].vt = VT_BSTR; & E; s: U8 F5 G* d pokeVariant[0].bstrVal = valueStr; " L, |; q4 a) X+ l1 } ! v) `& t9 P0 S% d& r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ ^) m" c- e" w# V4 l0 b VariantInit(&pokeVariant[1]); {0 k$ w& N3 x+ A. R2 b
pokeVariant[1].vt = VT_BSTR; + J4 m& J9 ?; l7 e' j pokeVariant[1].bstrVal = itemStr;: j+ m' C: l1 L0 t5 N' X
7 g6 D# a) p$ T" a topicStr = SysAllocString((WCHAR *) L"system"); 6 k, F+ ?5 |) }0 D, d6 G, m VariantInit(&pokeVariant[2]); ' y2 _5 [; W, W0 A% h$ ^ pokeVariant[2].vt = VT_BSTR; 7 C. l& N3 {5 I/ G6 r r/ ^ pokeVariant[2].bstrVal = topicStr;) s$ f' p7 Y/ Q& j' D
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// Set the DISPPARAMS structure that holds the variant. / Q* n. p& L* ~: v) M+ f0 V7 ]/ k) p& U
dp.rgvarg = pokeVariant; ; i& D |) t# C dp.cArgs = 3;: N- ^3 x5 g o1 `
dp.rgdispidNamedArgs = NULL; ; ]% F7 {: G( W! M dp.cNamedArgs = 0;% ^1 y, D/ R# i9 }# |
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// Call IDispatch::Invoke()9 b p% P- M- Q6 n4 [
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hr = m_pDisp->Invoke(7 q/ \* V' g6 i9 g
pokeID,/ ]+ R) X5 q8 A6 y7 o% _
IID_NULL,! ^: |9 _3 V( R1 X) N
LOCALE_SYSTEM_DEFAULT,: L6 K3 P5 g6 k: A4 B. U
DISPATCH_METHOD,5 ?2 V6 X2 O! w0 f
&dp,' _+ F" a$ X; A0 _* l
NULL, & Z9 c) z+ \; w8 i3 P; f/ ^4 m# ` &ei, ) K P1 i, h { {; s &uiErr); Q( s" I4 z7 r7 Y5 L1 t
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SysFreeString(topicStr);8 x% t: p1 `# ^4 L7 d0 f
SysFreeString(itemStr); " q& L4 X& k/ D0 r6 B( L5 _ SysFreeString(valueStr); : V7 c5 a9 y- j( X; s& H9 ~5 H; Z7 j& K9 a/ D/ R1 X$ A
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???' N7 ~: X4 ^. R: k" r+ D) \
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????6 ~( `) p0 D& \, C5 B, W
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4 _+ f% t \5 Q# R% q+ M2.这是request的程序( T7 [) q* T; M, `
// Request a value from Extend- V0 a! s7 m/ O, D( ]
//6 s4 \ h! T( T3 e0 s3 O* N
// Initialize the variant that will hold the BSTR. Set the variant's ) y# i6 o' v# g8 B+ `// type flag to indicate the fact that this variant holds a BSTR. Place the8 i1 Y2 U' J8 C7 }9 N
// BSTR into the variant structure.8 T- `) R7 @( L$ ~
9 }8 `8 t# x# c, d5 ?$ Z0 I p requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 a4 b6 E0 d' d2 ^# |, J
4 ?/ f) [( D- s& t3 F& J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 R; R0 }/ h D! x% r1 \$ | VariantInit(&requestVariant[0]); * ~2 r) E: Y1 z# Z
requestVariant[0].vt = VT_BSTR;. w0 Y7 e X5 S
requestVariant[0].bstrVal = itemStr; L- U6 {1 @ |4 X4 n
8 i' k9 Y) u" F topicStr = SysAllocString((WCHAR *) L"system");* h z) X6 r. m, A0 F6 d
VariantInit(&requestVariant[1]); $ n' j B5 @# _ w7 ?' p0 D: \
requestVariant[1].vt = VT_BSTR;' ~" D6 _; C# c5 L( K& g2 `
requestVariant[1].bstrVal = topicStr;9 i4 _& X; e: }) u5 p( Z
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// Set the DISPPARAMS structure that holds the variant. " w& W$ E$ s* b' A# \" F# N ) h3 ?/ H, B2 {3 I" O& I2 I dp2.rgvarg = requestVariant;# g; q# h4 I/ L) A4 g
dp2.cArgs = 2; 9 m2 V- D9 [( S) i n dp2.rgdispidNamedArgs = NULL;( {& V' g t: o4 }" Y1 s
dp2.cNamedArgs = 0;; O& \ ^, H9 J) E4 G3 I
8 A V( G: Q C4 J2 C* i var.vt = VT_EMPTY;/ }3 V4 _# r/ L: p" I, I
, Y) f/ ~: ^' `3 i! L& O// Call IDispatch::Invoke() ( R( I1 @: t4 {, V $ X) z% S' p8 N6 n hr = m_pDisp->Invoke(1 Y$ q: l0 G/ ?5 ~, U
requestID, , @! m7 R& B+ ^ IID_NULL,6 M( X X! g! z: g, c
LOCALE_SYSTEM_DEFAULT,* C9 }6 e3 {( N0 o9 k( n
DISPATCH_METHOD, 7 L* ~6 P0 s9 |! p &dp2,5 N) h3 T# O5 b3 M X; Z; J* Q5 [
&var, 1 B$ W$ ^+ {# d0 k &ei," Z' z- B" q% _9 f3 x
&uiErr);- R" N+ S: t5 C
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SysFreeString(topicStr);6 y8 b5 ? J+ j
SysFreeString(itemStr);; d# N7 H( n, {- j( V# w1 y
请问该程序是获得extend里面的哪个值?5 G4 s1 X, A9 B! x6 l! J
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????