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:) s& g' \ d1 U$ M8 {
Name = (WCHAR *) L"Poke"; & i! I( Q- }+ I# }* I/ I; i5 v: I 6 L9 k6 Q) j/ k; P M9 X6 M! i+ {1 [
hr = m_pDisp->GetIDsOfNames ( " y% q) H$ b2 c; ?- J) W" A IID_NULL, // reserved 6 x: f% e* R; y. D &Name, // Array of names to get IDs for% T- N& \% n- Y4 ~5 p4 x/ T
1, // # of names in the array, P- W% L! G1 _1 h8 x' F
LOCALE_SYSTEM_DEFAULT, // System locale! q; ^4 k+ j; Z8 H. q( D; h
&pokeID); // Array of IDs to fill on output# M( g" u8 K+ m: w
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if (hr) : h1 Y, L! ~. J6 C: n0 @/ Y { ; s( I* E/ l. j MessageBox ("Get Poke Unsuccessful"); : H6 K! D! s) g9 ?' ~/ e. c+ Y return; / ^+ E( c0 _+ V$ s( F }$ |* q# l% l7 K: ]0 @. v/ _
9 O5 h& W/ m7 G0 o9 J/ ?( r: H! w/**************************传递数据给extend**************************************/ 3 j4 o- {; [/ d+ i4 d pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* q$ M& }5 ^0 p% s5 j
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valueStr = SysAllocString((WCHAR *) L"1232");& S8 u+ u& Y* v, ]9 X0 t
VariantInit(&pokeVariant[0]); ; F* p$ M: a1 I8 h1 x. [" z
pokeVariant[0].vt = VT_BSTR; ! N& w/ o1 r0 H. Z% V* I' Z ^: k pokeVariant[0].bstrVal = valueStr; 3 f5 d: M* k9 K3 p: F1 U. h+ d ' b% X) I1 x9 E a0 C- V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ ?; W# e( r& I
VariantInit(&pokeVariant[1]); . G; J/ t7 S9 g+ R5 b! z
pokeVariant[1].vt = VT_BSTR; ; k# z2 I3 D4 n- o pokeVariant[1].bstrVal = itemStr; ) l, l% W* ? d* b- @; W8 M# ~ 8 T, g) G' ~% T! e0 B topicStr = SysAllocString((WCHAR *) L"system"); " Y& ^$ k. g/ z" U: {) p. b VariantInit(&pokeVariant[2]); & p! Q5 D$ p2 ` W2 _, s6 h pokeVariant[2].vt = VT_BSTR; : j! |# i7 D: T pokeVariant[2].bstrVal = topicStr; / e5 W0 F1 U1 I4 N; ^! N/ I# r" i* C. S, b" S! j& j! ~
// Set the DISPPARAMS structure that holds the variant.' k' T0 H( C6 {8 N& [( \
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dp.rgvarg = pokeVariant; 7 Z- b3 @5 L4 E- p dp.cArgs = 3; " _! q+ W, k; }6 h( E4 C dp.rgdispidNamedArgs = NULL; " L+ z! d8 |" d$ F. \6 g* b* K dp.cNamedArgs = 0; 8 B. r! p/ H8 Q+ T8 P; H# S1 m+ V* p" T# n
// Call IDispatch::Invoke() ; o- k8 C) c7 V3 U/ o( U5 @; w, [4 M9 X! j. Y
hr = m_pDisp->Invoke( & K( D7 g( c" J7 T! E. b1 z- I% J pokeID,* i/ K% A, g/ X; x
IID_NULL,8 x# V( ]; S' _7 U* c- T" n( a1 U
LOCALE_SYSTEM_DEFAULT, . k) \4 U4 \: ] DISPATCH_METHOD, , }0 _% e& H$ j% y) N: r, y& v) D &dp, 7 ~( U% K5 ?& ]/ f2 G NULL,/ z1 U- c6 o v3 s7 B. \
&ei, 3 c8 J9 [2 J$ g, z& @9 ^ &uiErr); ) l9 k9 @# b! l1 e. B# N$ X+ ? 2 {1 a* u" z- { SysFreeString(topicStr); 5 z8 Z0 O4 E7 ]% W SysFreeString(itemStr); # D! r0 \. K( m( P SysFreeString(valueStr); W+ }9 p4 t, c+ ?
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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???: g8 K! r1 U4 ~) c9 q; `' 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????- L/ N, m5 N, C: }! p" E: g
! B& \9 u7 k6 d" c : Z+ \. | W. R) h2.这是request的程序* l' }+ i& j: Z; F/ v/ n1 @
// Request a value from Extend) A$ Z7 @5 g* C9 k1 Y" j2 h
// * G8 X) n6 x" e8 t// Initialize the variant that will hold the BSTR. Set the variant's 5 N8 g: x9 H3 L& ~% k// type flag to indicate the fact that this variant holds a BSTR. Place the) { |7 z) [" @& K
// BSTR into the variant structure. * X) G4 a* T) Q: L8 z# r 4 i0 s$ J/ ]& U1 b9 x, o requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ h7 t/ r3 a4 k! }3 ]2 B
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . z: M K5 V6 @5 d: M: K! `6 O VariantInit(&requestVariant[0]); ! k4 }' M! l% d# F
requestVariant[0].vt = VT_BSTR; . J H9 U8 l/ I X5 }0 f requestVariant[0].bstrVal = itemStr;' A; S0 K# M) V J! K. A: R+ S
7 z0 C) A. S# W2 ~& Q topicStr = SysAllocString((WCHAR *) L"system");2 ^6 O8 B1 }* Q/ J' S6 A
VariantInit(&requestVariant[1]); 4 g" C. B/ j; U; P9 D. c) P1 h+ P requestVariant[1].vt = VT_BSTR; # w" ~2 Z4 k8 w3 F* J; N requestVariant[1].bstrVal = topicStr; ' a0 o( }6 q2 I+ I: e # j K1 n1 u3 Y0 N+ l- \// Set the DISPPARAMS structure that holds the variant.2 n* O' L* S7 r9 s0 E