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:& A) Z" H7 O- n) e1 ~, X ~0 t
Name = (WCHAR *) L"Poke"; / a& B8 `9 b A# ^% O; @ ) y7 I! x+ V- B8 S hr = m_pDisp->GetIDsOfNames (8 |, F( N5 m& m% h5 ^
IID_NULL, // reserved! |2 b$ u% J) S
&Name, // Array of names to get IDs for 6 h' P3 ?5 n7 K7 G 1, // # of names in the array7 d/ j2 y" e' A. W- i( q
LOCALE_SYSTEM_DEFAULT, // System locale" D) `8 g/ u1 y; T) r
&pokeID); // Array of IDs to fill on output . X4 @8 a; v1 P& K0 q% @ ) _) e h* q- J ?+ s2 X
if (hr)) m3 ~, a# S2 l. @
{ 9 B. C) X: c: `1 A9 d5 H" q5 _; X MessageBox ("Get Poke Unsuccessful"); / J* }* U; D( R. u N, W) T; u/ N return; 6 {6 ?2 x7 F W. o4 \9 Z+ A }& V$ k- r) n3 K/ h7 B% |* {9 s4 o- z- K
" j6 p P0 Z) u" Z* z4 T/**************************传递数据给extend**************************************/- N4 p% F1 H/ v- `$ g; I9 K5 ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( Y; g$ B( q R3 a % q) `- N& b. H& j' k valueStr = SysAllocString((WCHAR *) L"1232"); : m2 O; I4 t5 I: P VariantInit(&pokeVariant[0]); 0 z$ r; y. ?. w) g
pokeVariant[0].vt = VT_BSTR; : j' I1 S* q6 m7 P pokeVariant[0].bstrVal = valueStr;$ p+ a% r5 o7 y$ B' I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% {1 G. D6 [+ ?, s6 s. u0 ]
VariantInit(&pokeVariant[1]); ) J1 {* s: n4 m3 w K
pokeVariant[1].vt = VT_BSTR; f# e( Y( L/ G- g4 \
pokeVariant[1].bstrVal = itemStr;/ E5 c. X A6 Y; t2 s
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topicStr = SysAllocString((WCHAR *) L"system"); $ {4 y6 f" E/ P2 l: i VariantInit(&pokeVariant[2]); - M f! w7 [$ ~4 O* p6 @% f pokeVariant[2].vt = VT_BSTR;1 |3 Z" m+ O8 }0 o% B' {; c7 Y
pokeVariant[2].bstrVal = topicStr; : W2 W, W3 M2 Q8 g, \* c+ D. G8 k7 i+ S% x6 w' w6 f, t
// Set the DISPPARAMS structure that holds the variant.5 z8 X" R" N4 z$ W
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dp.rgvarg = pokeVariant; 5 }3 W& p+ V e8 X) V dp.cArgs = 3;/ r: `' g+ w5 p) f9 p: `
dp.rgdispidNamedArgs = NULL;/ W6 J# a8 X$ {7 ~
dp.cNamedArgs = 0; + I% |. R! C5 c$ t ; |/ t9 s9 y$ O7 k// Call IDispatch::Invoke() 0 P/ o* d( J, B* u2 I$ G7 b% b 6 V! t2 B# t" M& L; h hr = m_pDisp->Invoke(8 l) h# h- d% ~$ N: l$ h0 h
pokeID,; m8 _4 I( [! `& c
IID_NULL, ; w* B, ~' j! [ LOCALE_SYSTEM_DEFAULT,2 B( S* `( ^: ~$ Q; A
DISPATCH_METHOD,; W( O- K1 a( \! B$ L9 Z1 }
&dp, , `& p, T: L9 Z7 B NULL, 0 Q. j$ y) a' D7 y) g1 ^" m; Y &ei,! q& s: ^/ P( M' J- X- o3 r1 J
&uiErr);8 N- ?/ \0 V& i/ e
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SysFreeString(topicStr); 1 }1 C4 ~/ j3 z: h2 i SysFreeString(itemStr);+ T; [' ]0 t4 a7 N+ s) h
SysFreeString(valueStr);( Z* z/ t7 z. S) T0 J
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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??? 3 `% h$ G0 X+ w+ Y6 @/ P6 n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 I' M+ x8 g3 u& b' `: E 0 f# F3 R1 t. c3 s- s$ Q; a1 y. }2 Z5 M- F$ i) |
2.这是request的程序 6 f' J% o! v/ Z- ?( p- z// Request a value from Extend7 ~6 f' |* y$ u$ P! }) H5 p" k
// . s5 N, Z$ _& U( E: O5 |6 Y// Initialize the variant that will hold the BSTR. Set the variant's. _0 Y2 S& T5 {# C- p
// type flag to indicate the fact that this variant holds a BSTR. Place the$ K! f, r+ \7 N8 x8 d4 i9 M) Z
// BSTR into the variant structure. # f- h1 C+ J& Z0 m 2 o$ i! ^# R7 T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 k: s, `1 v. g5 }1 I6 i
4 G2 i b4 L f! t topicStr = SysAllocString((WCHAR *) L"system"); 2 e8 q! L) v0 x ~ VariantInit(&requestVariant[1]); ; E& e H/ g1 N( n requestVariant[1].vt = VT_BSTR; . ~' M% K0 D |. I# x requestVariant[1].bstrVal = topicStr;' L# J, F) \1 q6 G& e+ k( n
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// Set the DISPPARAMS structure that holds the variant., o, ]" M& t3 A* V7 w. G
8 x& q0 e3 v K dp2.rgvarg = requestVariant; : C# g6 G2 R( n; w, t1 m- j9 y dp2.cArgs = 2;( a h+ g5 J) o1 b d8 b0 w2 R8 y ^: ~
dp2.rgdispidNamedArgs = NULL;5 ~+ G# K0 g7 x) e* J9 V1 v
dp2.cNamedArgs = 0;! ^, F2 v( o) T1 B4 U, {
2 o2 a" b' m( M2 ]9 v var.vt = VT_EMPTY; ) _, O( b- P" J2 z; E; H # T! R5 ^5 M. g1 |// Call IDispatch::Invoke()* p4 E; S4 Z7 u2 Z9 o5 @
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hr = m_pDisp->Invoke( / r& K3 t7 w- O. d/ b requestID, : `- L$ n! ]% L5 ^4 b! W9 K( M IID_NULL, * s, j: R. {' @' t+ U LOCALE_SYSTEM_DEFAULT, + f% f9 ]$ B" [* I9 v3 h6 G" i7 v DISPATCH_METHOD, 7 p. [5 d [- M, l5 I2 ?5 H9 A &dp2, 3 O5 H! o# i3 B7 R9 x &var, / u! o2 ?2 a1 `; m &ei, ( [2 {: R: m5 t2 b7 } &uiErr);* H8 d! p3 O2 |/ M0 X/ t/ T0 b