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( j+ `% z, L' e1 `$ w$ a b
Name = (WCHAR *) L"Poke"; # p: E2 U7 N& g2 g+ _7 g$ w . z4 {9 E+ |( z0 g3 m/ i" X+ B" } hr = m_pDisp->GetIDsOfNames (1 K$ U8 U" B, }5 i, U: E( s
IID_NULL, // reserved ( }5 @: c. m0 Z4 K( W &Name, // Array of names to get IDs for : R" I O8 |+ n! p: A+ X 1, // # of names in the array c- t( G6 h% w7 [: }+ f. l. R5 W LOCALE_SYSTEM_DEFAULT, // System locale5 Y" _0 Q# x) r0 [) w
&pokeID); // Array of IDs to fill on output . {# V. g. `- E, _. X# o ; w+ x a7 n b L8 V if (hr) ! B q+ c* l3 a% D: |" E {/ T. i+ D3 v0 H0 {% n
MessageBox ("Get Poke Unsuccessful"); 6 a B; T+ Z/ {: O9 e1 T! L3 a return;6 t6 q4 |6 A" `0 I
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/**************************传递数据给extend**************************************/ 6 ?# B, P( z$ j9 K+ g* J pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) k5 ]6 k9 V. n' d! H
- Q1 l" ?* g+ F" Z; I9 x. W valueStr = SysAllocString((WCHAR *) L"1232");4 N3 Q) b- B# a, k0 E0 M
VariantInit(&pokeVariant[0]); & m; \3 s9 T4 `1 E, \, k" w2 {8 _
pokeVariant[0].vt = VT_BSTR; 7 r- B9 f0 i6 W" i pokeVariant[0].bstrVal = valueStr; / ~+ H" O! N. v8 [; I, J * B. k0 q7 j9 h- Z+ [: r9 B5 n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* \ E3 g2 o8 }/ A* k4 I7 {% Q. N, R0 u
VariantInit(&pokeVariant[1]); : u0 |& M% x6 S/ O/ S' r) p8 W
pokeVariant[1].vt = VT_BSTR; & a6 A" N. g$ t: t8 v pokeVariant[1].bstrVal = itemStr; ' e4 {2 J& b+ h8 W- N1 H2 q: ]5 K8 [2 H
topicStr = SysAllocString((WCHAR *) L"system");( W3 v& ?$ k9 _' L! Q) J5 \3 R
VariantInit(&pokeVariant[2]); K+ P. O3 ^" k# z5 _8 q6 o! J pokeVariant[2].vt = VT_BSTR; 6 W( }; V9 y: m& m pokeVariant[2].bstrVal = topicStr;3 H! x5 l3 e' b3 }/ D
* V3 }2 g8 X$ m// Set the DISPPARAMS structure that holds the variant. % m4 l: ]* G/ `! T; d. \3 v! ? Z# k8 a) Z6 h5 q; [( X N
dp.rgvarg = pokeVariant;9 u B5 }1 M, W" }& v$ d
dp.cArgs = 3; ) O- e# w% {' ]# N- u dp.rgdispidNamedArgs = NULL; 2 T& S S4 \ A dp.cNamedArgs = 0;1 z) _& f4 T0 n1 l e
" D( A2 o* S+ l+ x// Call IDispatch::Invoke() % O5 O; y$ |. c- e; [! g) N8 S+ P O% z/ D$ A# N" M; F
hr = m_pDisp->Invoke(& Z/ B a t) o0 n" F
pokeID, 0 `' G5 ?( g" W c IID_NULL,, w7 Q( ^9 S6 e& w
LOCALE_SYSTEM_DEFAULT,+ N& V1 W9 Y: b" F6 [) e" a
DISPATCH_METHOD,5 t1 t! d( a. i
&dp, ; c; Z* @0 j# P5 Z6 y NULL, : [1 s: h; t3 T% a# @ &ei,* m- j" k% T/ l, c$ g
&uiErr);0 U$ v! p) G w; L8 z5 V3 _0 R O
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SysFreeString(topicStr); ) F5 f* D) D! @. K7 [' L SysFreeString(itemStr); 9 B5 u% i% H7 ?+ l! } SysFreeString(valueStr);; L- ^" q8 _6 ?, z/ n# d1 o3 ]0 B
. P- J+ S6 O" p! P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" @. a' k" x: t
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????% A j8 s9 N: Q& d. W1 [* k
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2.这是request的程序8 T( x# D, E% y! Q4 X- V L
// Request a value from Extend $ G( }3 u& k* ^7 s// 3 A+ _ I& i) @# N. l// Initialize the variant that will hold the BSTR. Set the variant's 8 }2 s& X* s% r: T3 A v// type flag to indicate the fact that this variant holds a BSTR. Place the- _7 q) z9 V" x! q+ M+ ]9 Z8 ?! P" n
// BSTR into the variant structure. ) S5 M2 z0 Z: e) @- y1 {! P7 @$ n9 w8 e" b4 _. [+ P& Q6 I+ c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 q% @2 p# B% G$ v6 K 4 c: U" B5 m ~, F0 F, w' X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% _6 g) S3 x+ P% \4 t" Y: ]
VariantInit(&requestVariant[0]); 9 [1 ?/ e6 Z: \5 \: `/ `: { requestVariant[0].vt = VT_BSTR;- h7 @8 z( p/ u! h/ @& X% H
requestVariant[0].bstrVal = itemStr;3 i, g. b5 r; Q* x
+ A- F- W. y+ ?5 f( V; C- L topicStr = SysAllocString((WCHAR *) L"system");: P1 T( n4 U) L4 A( n/ A( v- @
VariantInit(&requestVariant[1]); 9 \- O6 | T& n2 L0 s
requestVariant[1].vt = VT_BSTR;+ P0 Z! w. K U- ] c4 P
requestVariant[1].bstrVal = topicStr; J, L- Q6 i9 F* V$ s% c, e' q" J2 B
( h3 A Z& ?7 C5 d2 n, ^// Set the DISPPARAMS structure that holds the variant.+ f: s. t1 d q6 S* K" ~$ [- v
- N6 V3 o. o7 C) u7 _ dp2.rgvarg = requestVariant;) O" u* w# z1 o/ O! V
dp2.cArgs = 2;6 c0 m2 U' ?+ ~8 c& d. \9 o! x
dp2.rgdispidNamedArgs = NULL; 0 c7 j2 V7 s/ `! S& |5 i9 q dp2.cNamedArgs = 0;. }" y+ Q1 ?8 s. L4 _* x7 u