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 a @: U6 R0 V& ~! ]) gName = (WCHAR *) L"Poke"; : a/ r$ D( W* ]2 n( S( D* L9 \& S " R9 i. U) ?3 p hr = m_pDisp->GetIDsOfNames (0 u) P, y5 J- D0 q. ~$ I8 \& d
IID_NULL, // reserved/ I+ o3 p( E$ m! S3 o* _1 }% b
&Name, // Array of names to get IDs for 0 Q. b8 ~; K+ X) \. U+ E 1, // # of names in the array , d d6 F2 w6 G( w- I; \7 P LOCALE_SYSTEM_DEFAULT, // System locale" N( l# O* S ^# w6 f9 Z/ F( Z$ o
&pokeID); // Array of IDs to fill on output 4 ?( P, I5 h% r3 e3 l6 h# t% s & C' a2 X$ B$ P4 H |7 `& a, g
if (hr)* d% Z" X6 K9 E' G4 @# l
{ o6 i. X: z C% N* m* r MessageBox ("Get Poke Unsuccessful"); / g5 q8 b) I4 t( ^& S/ \ return;8 f. ?* d! M2 i, z
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/**************************传递数据给extend**************************************/ ) @4 s/ x0 V2 Y1 g8 C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# |- l: ~. D) \- Z" U+ N9 z* j
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valueStr = SysAllocString((WCHAR *) L"1232"); 5 M2 V. z0 U% ?( k' \! c VariantInit(&pokeVariant[0]); 6 j, K4 P- u4 a" j# N
pokeVariant[0].vt = VT_BSTR; 9 s0 B6 \+ i4 ? pokeVariant[0].bstrVal = valueStr;& f- T7 [! @' c% y( @" J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # @; q8 o. D6 T8 E" `, N VariantInit(&pokeVariant[1]); ; c, {) M$ j( x M% |; _
pokeVariant[1].vt = VT_BSTR; , {0 y5 }( c0 P pokeVariant[1].bstrVal = itemStr;; f' \3 \* v$ \; C- E/ o
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topicStr = SysAllocString((WCHAR *) L"system");* ?. V! \* E, b* W& o1 k
VariantInit(&pokeVariant[2]); 6 L' e, I, p9 D# u) R7 e
pokeVariant[2].vt = VT_BSTR; , Q& v+ b+ c' z. ] pokeVariant[2].bstrVal = topicStr; & S7 u) X; H0 v 4 n) o& |4 m5 }# Q9 O4 ~5 t5 ~4 Z// Set the DISPPARAMS structure that holds the variant. . ]' V% t3 }& v1 ^ K7 K8 a7 y+ ]" G/ Q) L$ J
dp.rgvarg = pokeVariant; ' M' G1 t* }: l/ a" E+ v; t9 v dp.cArgs = 3;: l. \' m3 C) T* P4 q8 ~4 x
dp.rgdispidNamedArgs = NULL;' t7 S" U! A# b% w
dp.cNamedArgs = 0; . g* n- P% n" U: h+ O - Q" }# m4 E+ f// Call IDispatch::Invoke() D2 L! @. ?" G/ \5 K, w 7 D- w$ R) |2 M* q7 Q hr = m_pDisp->Invoke( 7 @" N) {! T# W9 I b% w pokeID,. _- Z3 J5 ~. r u5 O& S
IID_NULL, % l; X5 O2 C' v$ I4 X LOCALE_SYSTEM_DEFAULT, * c+ p; e2 c% g* N DISPATCH_METHOD, : @0 S2 S7 ^$ H" w" T &dp, 0 K9 O5 d/ s, d; i* D: l NULL,. {; c1 \# w% f0 z0 ^5 E! o
&ei, " i$ z7 U2 R" W. Z/ _3 _: M &uiErr); - w X& t1 Z: i9 g * H4 y4 l5 d# |: J SysFreeString(topicStr); 4 ~) t- f1 B5 y9 O- D SysFreeString(itemStr);$ G& N% G% L7 B: D/ ]$ U0 |' R
SysFreeString(valueStr); / z7 V6 d8 A5 L7 Z# J- O) B5 t5 B2 y
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: X+ `/ G% k$ t" f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???? , b# ~) r+ ?$ X) U, I6 f1 [- c2 P$ Y1 ~
3 D: ?1 d! o: q! O0 c) B2.这是request的程序 6 j4 O5 o) V$ v5 z# U- U6 n// Request a value from Extend - I+ M" o: S6 `% [5 v//. h$ l' j* [9 [: G ^3 b- l
// Initialize the variant that will hold the BSTR. Set the variant's : `5 R8 }6 H# \7 j) V) X8 M// type flag to indicate the fact that this variant holds a BSTR. Place the + g' T8 c; J5 k0 y// BSTR into the variant structure., p+ d, O% P1 k" d0 J
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); W. b% s* M; ]1 b8 I' U3 ^3 S6 {3 j 1 j0 a7 W$ B: J3 S% t6 w3 W* M* [: L! X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # p9 O+ f: O `' \- T VariantInit(&requestVariant[0]); ) q+ p: ?" `" b requestVariant[0].vt = VT_BSTR;- g, N; y# w& D. o" N! w% P6 W- m
requestVariant[0].bstrVal = itemStr;$ d7 s8 p& l4 X3 k4 X! E8 e' s
$ n E$ m; f5 Q/ u u topicStr = SysAllocString((WCHAR *) L"system");4 g5 F4 {% Q1 r8 V
VariantInit(&requestVariant[1]); 1 B- Z. w4 Y1 u1 c2 S/ W; O requestVariant[1].vt = VT_BSTR;& x6 n7 Y6 b, M4 q* f
requestVariant[1].bstrVal = topicStr;0 L: R9 u9 W2 D6 r8 w
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// Set the DISPPARAMS structure that holds the variant.! b9 G! R: {4 S
# \6 @2 s8 c% U$ L$ u dp2.rgvarg = requestVariant;5 u0 D, x( E4 J" H7 d
dp2.cArgs = 2;/ b Z# o) w+ M
dp2.rgdispidNamedArgs = NULL; 3 X2 W5 k+ u9 [0 [& M* V4 C dp2.cNamedArgs = 0; 5 |1 x3 z$ n8 w" r! I+ L0 Q' z3 S% [7 X& Y5 h, T4 l3 I
var.vt = VT_EMPTY; F: v, I$ o( U+ Y3 u5 g3 G5 q& m# e3 _9 z
// Call IDispatch::Invoke()7 ?4 u% g1 E0 Z! u% X6 F" L
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hr = m_pDisp->Invoke(/ b. ^$ l# q8 S C6 q+ V
requestID,* i C7 A- h% K1 X' O
IID_NULL, ( R0 g+ \! S( s3 L/ J% D1 C LOCALE_SYSTEM_DEFAULT,: O; m( x( w: R
DISPATCH_METHOD, , u! i: a( T' U! D/ a0 f& o* q( M &dp2,' B. H8 V3 a; c/ E4 t) _+ d
&var, 2 P$ T4 b& D* X% _6 | &ei,* A6 x* l& z9 ^: E* f* y
&uiErr); $ E- R/ Q* v7 r& l( u 1 g( s @: W. y; _ SysFreeString(topicStr); & P8 h$ ^4 A! h5 G1 q SysFreeString(itemStr); , [& t0 |' O1 ?0 j5 D请问该程序是获得extend里面的哪个值?; O' \, ~2 V, r N$ K
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????