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:" G) C% J/ \# P9 m
Name = (WCHAR *) L"Poke"; 0 o8 E) k6 ~, F/ X- L; N+ @% V3 S 8 Z, e' W& M) D6 n
hr = m_pDisp->GetIDsOfNames (; h) H2 I. W, \! X. i" ?/ {
IID_NULL, // reserved 8 f- v! ^& [4 V) u8 C. v &Name, // Array of names to get IDs for ! F X& t- a, \* y 1, // # of names in the array+ a% [) M3 |& r
LOCALE_SYSTEM_DEFAULT, // System locale% ^8 F- K$ K4 L$ M3 u1 ^
&pokeID); // Array of IDs to fill on output 3 \) A$ }1 ?: @: r; d6 g $ c- c9 |! X) B* L
if (hr) # g) Z Z3 R. E2 U, q# h { 6 F. H/ f9 z/ W1 W MessageBox ("Get Poke Unsuccessful");! ]" X- f6 Q) h$ l. _
return;# V5 c& F% Y* u8 g$ w9 l$ e3 D- _
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/**************************传递数据给extend**************************************/ 2 ~1 c$ T/ V0 t% ] pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; ^. l0 W8 C) F0 h, X # I& |$ I. h& m1 I# ? n
valueStr = SysAllocString((WCHAR *) L"1232");9 B! h' s1 M. L+ i
VariantInit(&pokeVariant[0]); 1 p e! u3 |: x. u. T2 l6 E
pokeVariant[0].vt = VT_BSTR; x: V, Y0 k- y: e3 _; W
pokeVariant[0].bstrVal = valueStr; - e$ L. i& y0 H7 K! b% ` ; `* D$ O) F; V+ \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" z- _, f. h& v& Q% w
VariantInit(&pokeVariant[1]); ; l1 Q/ f8 j4 e; I ]2 a* F
pokeVariant[1].vt = VT_BSTR;) Z/ X8 C. G" Z* R) K
pokeVariant[1].bstrVal = itemStr; ' f3 _7 k6 H% _- G) [8 j8 D# O1 p3 [0 `, @8 x% _
topicStr = SysAllocString((WCHAR *) L"system");; V0 `# j6 g4 u5 D/ }+ m
VariantInit(&pokeVariant[2]); , c' Q l! I8 n pokeVariant[2].vt = VT_BSTR; 1 L" s3 R5 W8 h pokeVariant[2].bstrVal = topicStr; $ U$ k5 W! c! O, r1 V3 o) ` ! w" C9 B& y* z, z6 c// Set the DISPPARAMS structure that holds the variant. : P& {6 H7 f' d9 N$ m8 O' |/ h$ n: l8 |* ]
dp.rgvarg = pokeVariant; - P; N8 j9 V J' d: x6 m' E1 T8 l( N6 ` dp.cArgs = 3; 5 N' Z+ F) X! U) \( T; ` ]& T9 y0 I) A dp.rgdispidNamedArgs = NULL; , h( y/ s1 i, w dp.cNamedArgs = 0;" P+ N. ^0 o; H) d( P: q4 G; u
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// Call IDispatch::Invoke() 7 O* W- e6 h% B% K# |; m3 N; I1 w7 q3 E+ x
hr = m_pDisp->Invoke( 9 w0 u2 a4 g D6 S pokeID,; l# @ L7 G; s. l8 w! n3 V
IID_NULL,- G5 B B, d8 D' C
LOCALE_SYSTEM_DEFAULT, 2 c% X% R/ K+ [4 c DISPATCH_METHOD,$ b( N+ m3 v9 [' j
&dp,, H* W9 {( v, |5 P
NULL,* k8 N0 o3 l% |/ J
&ei, / l& T! S) o- v4 e! ? &uiErr);: B7 ?- f6 _+ D# r
2 Z$ I7 g+ f) H7 n- F. t) [ SysFreeString(topicStr);9 a* t- R9 e4 f& _% o
SysFreeString(itemStr);) Z9 k, a p. v2 Z1 |! z1 N a3 K
SysFreeString(valueStr);5 R& ^2 r# H# t# |3 J( Z
# w; l; O$ G9 P* 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???) R% `* O* p" }$ T- ?, 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???? 6 h2 D! I! J- B' y: ~: j6 g8 g3 c; O, @
) Y8 @5 r& y' c" A2.这是request的程序6 B5 b- j: [* X6 {
// Request a value from Extend ; [. E2 s, m7 T$ L" T% v- l// 1 q+ n. Q0 f2 r* c. j! j// Initialize the variant that will hold the BSTR. Set the variant's" b* O M9 \" a$ e7 s! u- A; J
// type flag to indicate the fact that this variant holds a BSTR. Place the 8 Q7 _3 F) D1 m" k// BSTR into the variant structure. ) o* B2 b$ l) ~) C2 ]0 l; I' k9 L/ P$ Y1 F& t- a) R
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. O, f& L/ I# J# \4 D
* s: t; f( ?1 m6 ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 Q% S0 o: f9 l& f) T9 |1 r
VariantInit(&requestVariant[0]); 5 M/ ]; U" t0 _9 E: h
requestVariant[0].vt = VT_BSTR;4 i" G& H6 Y1 o* m- E( N7 S
requestVariant[0].bstrVal = itemStr;: u4 d* _1 q+ f! G, \
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topicStr = SysAllocString((WCHAR *) L"system");; d( m C6 W- [7 z! W
VariantInit(&requestVariant[1]); 7 i* V" F3 Q+ F- B. F requestVariant[1].vt = VT_BSTR; : E& D, a& q2 V requestVariant[1].bstrVal = topicStr; ( @' K, P5 q4 D5 \$ m 7 M! Q2 p0 j$ s* ~- m9 h// Set the DISPPARAMS structure that holds the variant.8 J- K, H- H1 z6 F0 C8 J