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$ l. o. ^! \' N
Name = (WCHAR *) L"Poke";5 M) X2 i3 U# D, Z
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hr = m_pDisp->GetIDsOfNames ( 2 V H6 F, r' o/ g IID_NULL, // reserved& m% B% H% u6 f2 u/ C$ Z# e
&Name, // Array of names to get IDs for / Y# U( \. @; E' Q$ | 1, // # of names in the array. }4 v, S+ s4 i( y( x) R
LOCALE_SYSTEM_DEFAULT, // System locale # H7 C: Z( P- u9 S &pokeID); // Array of IDs to fill on output2 j4 d' f" Z: X! s3 D7 D5 m
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if (hr)% F8 c( `( x8 g6 l/ E. v
{% \9 J1 E5 Q5 I I
MessageBox ("Get Poke Unsuccessful");2 G$ E! K0 O O% H* O, R) ^
return;8 z# B9 W9 X R
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/**************************传递数据给extend**************************************/ / u* u% |" p5 ?: c" |; a3 h2 p# } pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; w. d, x& W' E9 C9 e& U) D. _ : u8 d( c2 i7 f6 N9 S0 c
valueStr = SysAllocString((WCHAR *) L"1232"); # O# ?+ R9 Y* ?# ^ VariantInit(&pokeVariant[0]); , ?$ M0 ?& o, E9 w" @& x
pokeVariant[0].vt = VT_BSTR; * U3 K1 m% d! b1 L pokeVariant[0].bstrVal = valueStr;9 L) ~: c5 p# E5 K! ~; Z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 Z+ t- r( _2 j, M% {+ q VariantInit(&pokeVariant[1]); : o; P: d7 I$ @8 @ t pokeVariant[1].vt = VT_BSTR;- ^ l7 L& {0 G) l7 N0 \
pokeVariant[1].bstrVal = itemStr;: \6 S4 |9 O6 N7 S8 s5 a" O
( c$ ^" L& u4 R+ ]+ ]( h: }9 X topicStr = SysAllocString((WCHAR *) L"system"); / }' M( b7 g5 b; s- K$ a* X. C VariantInit(&pokeVariant[2]); % K% Y( H) `' E- p9 R+ \
pokeVariant[2].vt = VT_BSTR; % S5 o5 {/ A" J5 [1 }$ K3 z pokeVariant[2].bstrVal = topicStr; # g9 x! d# J$ \ V- B% ?/ B) u" _6 _! M2 _3 ^5 z
// Set the DISPPARAMS structure that holds the variant.4 ]1 l& g9 C) Q' ^
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dp.rgvarg = pokeVariant; ; A# U) f% e0 Q4 ~# K dp.cArgs = 3; ; c- k$ u+ [1 g* W d1 O dp.rgdispidNamedArgs = NULL;: x; v+ X0 K: [+ a
dp.cNamedArgs = 0;' N* N% {* |$ B# H |. O8 ]& s
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// Call IDispatch::Invoke() 9 I9 I9 ^% K; }' x" Z- F, }) ?* ? 2 x d4 e1 Y0 i hr = m_pDisp->Invoke(& ^8 W0 T, d, ]% G; R# U( W5 i
pokeID,+ E$ l% \7 `: g: j: O
IID_NULL, : B1 R0 H* u' [ LOCALE_SYSTEM_DEFAULT, + C' ?+ Q" \, Y7 u# g DISPATCH_METHOD, . X, q( k7 X$ p# P# m &dp, 9 i9 V( ^" M: D0 p NULL," s, ^' L' c! M9 }5 p
&ei, 4 X. y' W2 z$ _- w0 J1 Y &uiErr);2 S1 x* V2 b& G$ `
9 m" w1 B- z, d7 N SysFreeString(topicStr); + x. v/ b- ~4 C! Z) Y& U5 m SysFreeString(itemStr);' Q, Y. ]$ | M
SysFreeString(valueStr); & r& Q4 Y2 ]2 L |4 `" Q V" v6 P; l V4 t6 ~6 x8 x+ `* 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???+ D7 |1 y. y' S; J; k
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 S- R- P7 {: g% C; h& e 1 R, {4 C, O( @" ?+ Z& {5 @8 D8 k' I; n1 }' ?
2.这是request的程序 0 d* X: S) |4 O9 o/ H, T" e// Request a value from Extend0 J" u7 ~9 h! _* ^# Z
//( [! S; J4 J' Y& h
// Initialize the variant that will hold the BSTR. Set the variant's/ i4 p+ }* c& T& t
// type flag to indicate the fact that this variant holds a BSTR. Place the " g: V ?4 d6 ^+ V// BSTR into the variant structure. 1 R. s3 y. H4 W8 J( E: U' t/ c: y9 v v; u5 z' T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ _* B c1 ]3 W7 A% p2 V* m ' Y9 Z! D' g s; L/ v( L& F. g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 P5 v. d: ~2 V' z, G" M4 h. G
VariantInit(&requestVariant[0]); ' g! C5 o R9 L3 e
requestVariant[0].vt = VT_BSTR;* o- p' a7 a) w+ P" ^0 j
requestVariant[0].bstrVal = itemStr;- `' G A' I% g5 g
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topicStr = SysAllocString((WCHAR *) L"system"); , ^( X& s9 \) Z2 f VariantInit(&requestVariant[1]); $ p- f9 @& ^0 n) M requestVariant[1].vt = VT_BSTR; ) z# ~; \ Q m1 @$ k2 r+ c requestVariant[1].bstrVal = topicStr;) C/ L' q' i# w9 o% Z4 I; e
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// Set the DISPPARAMS structure that holds the variant./ a6 f. r d2 x. g% ~