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:- K+ r& F5 `# I( h& G5 d4 B) ?% U
Name = (WCHAR *) L"Poke";2 L/ v$ v) Z) I( a. m
- ^2 X; \3 [# f5 b6 Z4 r hr = m_pDisp->GetIDsOfNames ( 8 q, A$ r, e. b. {' \/ @$ Q/ t IID_NULL, // reserved 4 t1 H6 k% l1 f/ K) n+ S; h" K# I &Name, // Array of names to get IDs for2 V# ~2 h- H. D
1, // # of names in the array , L9 v- q; S$ i( e, L, I LOCALE_SYSTEM_DEFAULT, // System locale : c3 z6 q& o$ ?& V; g+ J9 d &pokeID); // Array of IDs to fill on output) S4 s# h9 Y$ c D9 v
) H; c+ U+ s% `8 H( W2 L if (hr) : H! e+ b( i! I0 o8 I5 d7 e( t { ! W9 c% J5 F" l/ Y. o MessageBox ("Get Poke Unsuccessful"); ; {2 a2 l/ W; b( E: d$ t- T* ~5 @ return; ; b! h3 r" I& w& p* @ Q; R } ' V1 Q. |" n! P: @3 c- y6 T z Y! r9 f& S, {0 E: ]6 T8 }/**************************传递数据给extend**************************************/& t& g% a, f- t8 R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 `7 l4 `. M7 j* U4 U6 c7 X2 E
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valueStr = SysAllocString((WCHAR *) L"1232");, A) i7 `% g1 m/ q" f7 ^
VariantInit(&pokeVariant[0]); ( O. d9 `6 l0 P' ` pokeVariant[0].vt = VT_BSTR;/ i' ]) w2 j' D' d9 L0 @
pokeVariant[0].bstrVal = valueStr;" h. o% z# V; c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! I6 n( M7 {0 f/ O9 p& J- A VariantInit(&pokeVariant[1]); + e: m% h6 |* d V- t. z pokeVariant[1].vt = VT_BSTR; " ?- k {0 @& `7 a pokeVariant[1].bstrVal = itemStr; * |% e/ S8 C; E 6 p* W0 s# V2 Q x9 f! y topicStr = SysAllocString((WCHAR *) L"system");0 t5 ~- y% f9 C( u& j0 y4 q* [
VariantInit(&pokeVariant[2]); , |. o1 X( A% ^2 ?$ A4 y pokeVariant[2].vt = VT_BSTR; y* k% X, ~8 q+ X/ [+ T
pokeVariant[2].bstrVal = topicStr;+ Z! }2 k0 x4 M C
0 J1 r% w5 v4 o2 k. C6 |! Q V// Set the DISPPARAMS structure that holds the variant. * U) C/ l L7 V7 ?0 f: h. \ & C1 J) a& j' a O h0 A$ y dp.rgvarg = pokeVariant; ) y4 Z" ?" d9 s. F3 N: X* E. E( o dp.cArgs = 3; ; H! N0 M* n7 l2 u: y0 [7 H" U dp.rgdispidNamedArgs = NULL; % i: ~3 g* I3 n! N2 M7 L8 ? dp.cNamedArgs = 0; , L3 ~- b# b1 c2 g ' n( p$ i: X3 [// Call IDispatch::Invoke() ( A* D; z9 a( }2 `5 G& ~1 \' G; K3 {2 w: f& o
hr = m_pDisp->Invoke( ; d! |0 I% J+ C3 e& Q# W+ [9 I7 R pokeID, , k* H0 m4 r6 L0 L IID_NULL,* Y3 l, d% F1 t t
LOCALE_SYSTEM_DEFAULT, - i- V3 }+ u" p DISPATCH_METHOD, ' g# _* j. }+ k8 l5 D: O7 h. f7 ^* \ &dp, 2 k. ]) S, r4 ~5 f# b6 Y: L$ e NULL,5 D. J- L( e \8 {/ V7 `2 U3 ^
&ei, 5 g2 {. ^6 A# V &uiErr);* S" l+ H4 w5 Q' ]) @
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SysFreeString(topicStr); $ j9 o- n, p. I! w: V8 k7 J) ?: s2 M SysFreeString(itemStr);) q0 j' z2 O( ?2 d! N
SysFreeString(valueStr); % q8 x3 M1 o. A; E9 d6 | ' T; H) `& Z( K; _; L: P: t& W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??? : T- p0 c9 p/ 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???? , @4 l# _7 b$ [5 {" _$ w! L9 X) b% n1 }8 P
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2.这是request的程序 8 A6 U O& f; F3 \7 L8 j' b$ P// Request a value from Extend / F- E) v/ u: S( Q; C0 Z//) l& r1 Z% j4 N" Z$ c6 a
// Initialize the variant that will hold the BSTR. Set the variant's $ `3 I6 _+ E1 A" u// type flag to indicate the fact that this variant holds a BSTR. Place the% X9 u1 L0 E" \: f
// BSTR into the variant structure.# N( t5 F6 l9 n