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:" Z: k5 K( R6 `
Name = (WCHAR *) L"Poke";; C- `, h* t& Y9 h6 e7 f# @2 d
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hr = m_pDisp->GetIDsOfNames (& c. p4 y7 Q% B' Q; o) O% S
IID_NULL, // reserved( x4 w6 M# a+ c' [7 N
&Name, // Array of names to get IDs for7 h, r5 o1 g$ _0 n5 s
1, // # of names in the array ; ]2 Y* ?4 \# t LOCALE_SYSTEM_DEFAULT, // System locale2 l6 p8 V$ G) \ c& C5 L6 n
&pokeID); // Array of IDs to fill on output # F. j: r4 q& q/ W" O 5 H: p3 \0 [) i; K P0 @; l3 O
if (hr)- r u$ \9 w1 k: I& ~0 r: D
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MessageBox ("Get Poke Unsuccessful");+ t+ c7 S6 Q0 S( A- F1 k& `1 G
return;* T6 h$ y8 v7 ?
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/**************************传递数据给extend**************************************/& j1 O3 p. ]/ L/ s3 d, Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ E8 V! E* K+ ~: a0 c% h6 j# C# {
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valueStr = SysAllocString((WCHAR *) L"1232");6 ]4 l5 ~' ~' O& C
VariantInit(&pokeVariant[0]); ! H. U( l8 `4 @8 L
pokeVariant[0].vt = VT_BSTR;% o: x9 G6 ^, t1 A$ v# u9 Q+ U1 U
pokeVariant[0].bstrVal = valueStr;- Y* L0 y7 s6 V* k9 ]9 o$ n
7 X) m8 {) ^$ m# y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 y7 F6 J) E" A' [4 G
VariantInit(&pokeVariant[1]); + ?+ l" s1 ^ t+ r pokeVariant[1].vt = VT_BSTR; 2 X/ M; x) m6 r' R2 N1 x pokeVariant[1].bstrVal = itemStr;/ M1 F% {: g: `% z. \
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topicStr = SysAllocString((WCHAR *) L"system");2 h0 P* ~; Z* S5 p# m6 |
VariantInit(&pokeVariant[2]); $ T: C, |7 R- B* M) B0 i pokeVariant[2].vt = VT_BSTR;0 ]! R' B4 I Z& }5 B% V& N
pokeVariant[2].bstrVal = topicStr;+ e; Z* a2 F) u; n
7 ^8 x) u6 K% R. f! ~// Set the DISPPARAMS structure that holds the variant.# Y7 i. R) H6 v' L2 Z0 q6 p
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dp.rgvarg = pokeVariant; ! h: R$ s& d! k5 f# D dp.cArgs = 3;6 Y9 j8 n( k" W: }, `- G" l
dp.rgdispidNamedArgs = NULL; / s3 ]% Z% G6 y- L+ v+ [ dp.cNamedArgs = 0;( P1 a, m+ ?# h/ Z0 O
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// Call IDispatch::Invoke()0 V/ K% L* ^* U2 B' ~2 y
$ D. ~) B2 W1 f) [1 A' r hr = m_pDisp->Invoke(! l; Z1 ]- `- N" [9 h) \6 j' ~+ t
pokeID,- _' D r1 @: v# d4 f8 b$ z8 @$ F ~
IID_NULL, # [! ]; a' v2 R- R! C: I1 T; M$ i LOCALE_SYSTEM_DEFAULT, ( t3 r$ _6 |5 S* L1 K8 \7 z DISPATCH_METHOD,4 G a+ b, |$ d* k+ m- ?4 z4 K
&dp,- A' U8 O9 N( o1 t4 O! y& k/ W
NULL,3 X7 i5 N0 u2 u, T6 [' T! J
&ei, 4 e _- f7 P6 I: D. k F! P &uiErr);8 E' n. ]: @' T- r
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SysFreeString(topicStr);) ~$ B; h3 d# [6 f9 L
SysFreeString(itemStr);* [' x2 \; e" P) E/ b7 S
SysFreeString(valueStr);; G; G# ^1 l2 M# I
/ X* ~3 C, d( b1 e4 i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???& F$ _+ \: x2 O1 } U" M: W
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????; C' n/ S1 p) o( V2 g
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2.这是request的程序 w- T" R8 H3 f( `% e: p" P
// Request a value from Extend % J) _2 j! e2 ?0 }: ^// 7 E& F) b8 B6 z; ~// Initialize the variant that will hold the BSTR. Set the variant's2 ~8 D. y, @; i* N- B! |
// type flag to indicate the fact that this variant holds a BSTR. Place the ! h/ \' O0 q3 S3 O) g3 s// BSTR into the variant structure. 7 j1 {% G) k/ L0 W* \; N& A5 B) t7 Y* X: G
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 c; a* P. n+ A' @$ S5 w/ a& K ! i, O) {3 m8 \' @" v$ e+ h9 s! Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 b7 R$ l+ O) g& C$ W4 z VariantInit(&requestVariant[0]); & e- c* o6 T- p6 B' \% S2 w( U
requestVariant[0].vt = VT_BSTR; + p- V4 p- _' h' P3 v. l3 |8 m requestVariant[0].bstrVal = itemStr;( F. W6 K3 {. A' L: X4 @% T ~
# M3 `6 m) Y+ b: t, I- ~# q topicStr = SysAllocString((WCHAR *) L"system");. b( f9 O+ Q( X. X- Y
VariantInit(&requestVariant[1]); ) l9 A7 k& q: W. g
requestVariant[1].vt = VT_BSTR;2 I. r* X! Y7 @. B
requestVariant[1].bstrVal = topicStr;' u# `# Y7 C3 M8 k% N7 h
9 u; `/ H1 M% R5 T5 D0 I" c// Set the DISPPARAMS structure that holds the variant.( y9 t5 O! E' U
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dp2.rgvarg = requestVariant; . f6 Z" x6 S0 I7 \ dp2.cArgs = 2;+ `, R! X: B* S3 S. p% N
dp2.rgdispidNamedArgs = NULL;) n+ V) D' _! z/ l* r/ t
dp2.cNamedArgs = 0; 4 H+ A3 f' m: R9 d8 T5 C) P5 A1 c& `. {
var.vt = VT_EMPTY; 6 E* I: J1 G; d$ I8 s 9 E0 ?% v. J, Z) H// Call IDispatch::Invoke(): J- H1 R3 q' y: I$ s