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： / T$ k! s+ d1 i/ ~ W YName = (WCHAR *) L"Poke";' Z$ z3 | ^+ S' r& C" L1 o
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hr = m_pDisp->GetIDsOfNames ( / m, c7 J! [9 U1 e0 i; j& } IID_NULL, // reserved: Z3 q& {/ j+ h8 d" C; S* i
&Name, // Array of names to get IDs for7 A7 V t3 ?0 u# J, g" _4 a! r
1, // # of names in the array3 o( `8 ]! a! M/ k
LOCALE_SYSTEM_DEFAULT, // System locale 6 v) d1 l3 `# j. N3 b8 b &pokeID); // Array of IDs to fill on output i2 n* a% e8 a5 V# l7 r , V. w, J5 U+ f1 J if (hr)/ @) p3 u, @1 n( y1 F
{, k) a3 x3 m8 v* t7 x. G8 R7 t, ?
MessageBox ("Get Poke Unsuccessful");0 b/ b; v5 f8 S
return; 1 M# P) k& z$ y } 5 v4 W' [% j$ k! S8 {9 E2 I! n8 V6 F" V1 {7 w. f
/**************************传递数据给extend**************************************/ 8 x2 U S- q# V4 }$ m, `: \3 V: S9 N9 M pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . Q( L w; v/ m' O/ r8 a8 x 3 Y( G& t$ H0 I& {
valueStr = SysAllocString((WCHAR *) L"1232");# c$ S5 X3 q0 K+ t8 \ Q; J3 r2 e
VariantInit(&pokeVariant[0]); ; \) i4 r8 V. s) q4 h: t
pokeVariant[0].vt = VT_BSTR; # K0 N2 f6 I( I/ E9 z. ?1 v, c! i pokeVariant[0].bstrVal = valueStr;. S. t$ a$ k* s1 K
' u2 Q6 M' Y, c& y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( _: g t1 R3 e
VariantInit(&pokeVariant[1]); ! N* p* e8 ^3 x9 ?
pokeVariant[1].vt = VT_BSTR;, A4 U, I" }: t
pokeVariant[1].bstrVal = itemStr; * Y. h- p3 D0 }) \, Q9 C& Y: l: k5 @7 l( t5 H/ n2 E
topicStr = SysAllocString((WCHAR *) L"system");5 z' t+ A* j8 _' }! [! d
VariantInit(&pokeVariant[2]); ; {! d/ X0 x9 d9 {
pokeVariant[2].vt = VT_BSTR; , l! C3 {" |( r! d pokeVariant[2].bstrVal = topicStr; - A. c! l; D; V3 o5 q1 b; N' k# F/ s, ~( [2 G. [, X: Q
// Set the DISPPARAMS structure that holds the variant.( H$ d7 S$ T, A2 t4 l
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dp.rgvarg = pokeVariant;: F4 l$ H( t9 E& U: ]
dp.cArgs = 3; 0 e1 g+ i% L1 c$ A1 w1 D dp.rgdispidNamedArgs = NULL;0 y6 D" Z( r+ t$ B# J" T
dp.cNamedArgs = 0;8 }3 m; r- I, E8 v6 ~3 a, d$ S
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// Call IDispatch::Invoke()( F A% Y2 d/ C: X
* A: \0 W. x. @) o* V0 I- }! Z hr = m_pDisp->Invoke(. `5 e/ w h; c3 w
pokeID,# i' p' y: k9 C4 C9 v* r) O4 j
IID_NULL,$ a: W, `* m8 O7 R, c5 `
LOCALE_SYSTEM_DEFAULT,1 [( X- c" }# v, r
DISPATCH_METHOD, ) p" U/ \3 p1 ]3 h5 ~ &dp, 7 P! g+ h( G# k6 u# ] NULL,% N# |, N% g2 F5 b
&ei, 3 E0 Z3 O; H- Y/ X. @ &uiErr); : W- z" H$ T% i9 ~, ]8 w " E9 A: h" S8 g1 Z9 E SysFreeString(topicStr); & A- {0 K- n1 Y+ O SysFreeString(itemStr); ' b' S' r/ o3 m/ x5 j2 R/ H SysFreeString(valueStr); " j V+ v' |/ W/ ?9 U 1 Q' V; i) l. a, 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？？？ # W e/ l; M# }; x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？？？？/ Y+ ?, }2 X) Z
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6 Y0 G- J9 r9 d- a2.这是request的程序 0 \: A: A9 y, l( `// Request a value from Extend5 V/ _ Z* B8 J' V; Q2 r
//9 h) n+ c0 F, S- E5 Q8 Q
// Initialize the variant that will hold the BSTR. Set the variant's% E% q" U4 M$ q D5 E4 E8 _" M5 y
// type flag to indicate the fact that this variant holds a BSTR. Place the % s. D7 q. o |7 n// BSTR into the variant structure. , x2 M$ g6 U( e k% g$ C8 o. j. M/ ~2 e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( h L* e- t" M0 I 6 m1 `7 G) z* e' h. X- |6 h0 t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 N, ~$ R2 E! i- e9 g0 l$ O
VariantInit(&requestVariant[0]); 5 l( I: j% [' r2 N- S6 I b
requestVariant[0].vt = VT_BSTR;. J9 n% }3 L" ?; p+ \! }3 E
requestVariant[0].bstrVal = itemStr; : i; v1 Y1 H; t 0 Y o) F$ D: [! k/ o9 L topicStr = SysAllocString((WCHAR *) L"system"); / G+ d8 a9 m+ ^* O VariantInit(&requestVariant[1]); % ?% M* H9 t* z$ R+ @6 t0 H
requestVariant[1].vt = VT_BSTR; - {' Z- C, c, h6 O' ~ requestVariant[1].bstrVal = topicStr; 8 p, b& E0 H J0 V5 Z$ K - [% [/ F9 H5 E* ^8 Y8 V// Set the DISPPARAMS structure that holds the variant.2 p9 i; M& z- e0 g1 K
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dp2.rgvarg = requestVariant;% H) N+ w$ X: o) y, M3 l, v
dp2.cArgs = 2;( F4 j& \. z c# a% `! y8 ~1 c
dp2.rgdispidNamedArgs = NULL; ) V; o$ n3 F1 z7 l dp2.cNamedArgs = 0;5 v" ?, M+ f7 s. P7 R8 g7 j! ?$ G
* |. ?5 N( ~9 Q1 Y var.vt = VT_EMPTY; / H$ P8 h8 v. n) n/ n; h3 D4 ` & b7 B5 n: Z3 u* l& J// Call IDispatch::Invoke() % O. ^+ q& X# |. I/ F% n 5 ^" o5 }% l5 ]) H4 z5 D" u1 l, B hr = m_pDisp->Invoke( , y- {9 p: Q2 E7 [+ t requestID, 7 `4 @1 m' p* N3 {* A9 [5 t IID_NULL,+ V) I F5 I9 I) V9 T
LOCALE_SYSTEM_DEFAULT,. v. D: z; ~0 f r" f
DISPATCH_METHOD, / O, X) x- T+ W! n7 I I &dp2, 5 o. |8 W3 K& S: i. { &var, @& M: A0 w+ L7 O" ^ l' @) {1 C: G &ei,3 O5 D" n) B# j" T! @
&uiErr); " z! z/ U1 { K2 [5 m ( q9 [5 a, R) m$ ~! [* ?! G SysFreeString(topicStr);' Q% ?' N) z0 l! w0 O/ C- B
SysFreeString(itemStr);" u0 [; b9 f" [" q
请问该程序是获得extend里面的哪个值？$ a! c# R/ Q: k2 x
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？？？？
发表于 2008-11-25 19:37:03
