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: . R# M6 K) q% yName = (WCHAR *) L"Poke"; 9 ?' {0 b# Z6 E" ` H* _' t' w# e H6 y3 a hr = m_pDisp->GetIDsOfNames (+ m# c6 {8 R; _) W$ @+ R
IID_NULL, // reserved; m1 S( X& R9 K. ~7 \3 G
&Name, // Array of names to get IDs for }" J4 g' t3 L- q) i1 \ f
1, // # of names in the array ' q0 l6 A& N k3 b; D LOCALE_SYSTEM_DEFAULT, // System locale $ Q2 B) R2 x5 s4 s+ @9 }; E ~ &pokeID); // Array of IDs to fill on output/ l4 F5 h. _) U: J; |
( [4 Q+ b4 J4 Q6 J, Z6 t7 I6 s/ }% o/ ^ if (hr)- u5 n4 Q2 W X. V
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MessageBox ("Get Poke Unsuccessful"); 3 r$ P: D: E5 t4 b- \+ p0 z return; / k1 G3 v+ `8 A9 [ } ; [+ s, ] w6 w# ] M$ g0 ] h+ N- C# T1 n2 e, ~. V" m
/**************************传递数据给extend**************************************/( ~5 k+ |" I5 g1 h+ \; A( N
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; a6 R; V6 V; ~4 l! M6 R- U: m
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valueStr = SysAllocString((WCHAR *) L"1232");+ b' c* S; q3 a' n( y' D
VariantInit(&pokeVariant[0]); $ g+ M) z# ~4 J4 l9 }# B
pokeVariant[0].vt = VT_BSTR;7 d2 J8 o! m- w! a. z
pokeVariant[0].bstrVal = valueStr;2 [" Q5 x: B. `6 X
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 T. h5 s% ~5 ?$ c5 B6 I ? VariantInit(&pokeVariant[1]); 3 P+ |, H& {# |& ?) h7 B5 A
pokeVariant[1].vt = VT_BSTR; & S4 J" D# w C; m% a1 \6 y+ D pokeVariant[1].bstrVal = itemStr; - }6 z- d* m, [4 {( J 7 f' c; i7 V* y! I8 M; W topicStr = SysAllocString((WCHAR *) L"system"); ( H: @ K# n2 ?3 Y; } VariantInit(&pokeVariant[2]); % w# h5 f1 j5 u
pokeVariant[2].vt = VT_BSTR;( _$ c; q- ?) Y1 _
pokeVariant[2].bstrVal = topicStr;4 \4 J& A( X4 L9 ~+ [
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// Set the DISPPARAMS structure that holds the variant. 8 t7 B- D( j5 w, o% \( ~3 K/ g+ f4 U5 c
dp.rgvarg = pokeVariant; . L1 u) m# E4 H; m+ `/ C dp.cArgs = 3;% E- ~3 Q5 Y8 e$ ^; o/ Q
dp.rgdispidNamedArgs = NULL; O+ k, F7 B+ H# J. E. l! r
dp.cNamedArgs = 0;8 g* C3 @/ }0 X' ^- W
4 f- a7 s8 R" z: c C. r// Call IDispatch::Invoke() / u r0 X# e9 z+ D5 \, A* ?' L0 D- \4 A. C8 R+ D% s* v
hr = m_pDisp->Invoke(: j) P1 ~/ @ u1 c
pokeID, 8 n. }; X: A( p3 c IID_NULL,3 Q1 ^- i" x3 e O
LOCALE_SYSTEM_DEFAULT,3 }4 d& T. Z( i: }% ~/ w) e
DISPATCH_METHOD,# C' S# j. H/ F
&dp,7 E8 f4 J" b. |* U0 l
NULL, % Z% Y& V* |8 W; c4 r: U5 `0 x &ei, ' I; O8 n: k2 O$ ?$ B9 \0 {8 C &uiErr); ) V) D* v7 N4 C( [3 _ ) M, u' k! _/ O- |/ ]3 W$ t* d* z SysFreeString(topicStr);) {2 |5 j8 M/ Q# |
SysFreeString(itemStr); : o' t0 e, W; G8 o$ J SysFreeString(valueStr); : _2 C$ A1 k8 t5 e7 V7 u 4 C! V4 F- N2 L% @7 O# q5 F: t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???2 s. F# Y- H. I7 ]0 c" C
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????. A! X" s3 [4 R$ j5 j% U: Z
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8 V4 D: |& [+ y6 S M: y5 ?% c2.这是request的程序( O* b& ]0 w }' W/ I9 O6 N9 e
// Request a value from Extend g# H) U$ i* t* @7 [ m b) c// ; \( |' @. x% n2 k2 S// Initialize the variant that will hold the BSTR. Set the variant's ) `6 m: m: p" Y0 B// type flag to indicate the fact that this variant holds a BSTR. Place the % w6 z+ R/ t* C// BSTR into the variant structure.' p; C4 d5 x( h$ {
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 f6 `" o$ z1 E ! ]6 P% R7 ]1 @" z/ t8 S/ [) C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . g2 z; ~' P( }) @! G# f# p* @6 b VariantInit(&requestVariant[0]); 6 _5 t5 x; t' A/ M! L& ~3 G4 c9 A requestVariant[0].vt = VT_BSTR;: |0 I% b2 O, g' j
requestVariant[0].bstrVal = itemStr;0 @5 N8 x" |% `2 Z
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topicStr = SysAllocString((WCHAR *) L"system");- Y& \( ?1 O. Z: I
VariantInit(&requestVariant[1]); # G: a& Q: ]4 ^. X8 _, }
requestVariant[1].vt = VT_BSTR;( q5 g; U1 h3 M' e/ I3 r
requestVariant[1].bstrVal = topicStr; 1 [% C8 `: I9 R' O% N' j1 V, h$ C- I & H- a' B- ?( _' w' e$ K// Set the DISPPARAMS structure that holds the variant.- T# |+ {: ?/ E% k% `# g
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dp2.rgvarg = requestVariant; : l: ?9 ?0 d* ]) V9 b4 y dp2.cArgs = 2; N% T- ]8 C6 ~; t; f# D dp2.rgdispidNamedArgs = NULL; " i) E3 \- k! }1 r! G W8 K5 B1 _ dp2.cNamedArgs = 0;0 M* [; x' U" X- X' T8 m
7 A9 j" Q+ v+ N# O+ W2 ? var.vt = VT_EMPTY; ; o' E4 i9 x. |$ [5 G! Q' N& X; y3 p# h% K7 z! z
// Call IDispatch::Invoke() # D4 ~, n9 \; M" i/ @( s1 l& n2 {( U, c& g3 P* y. ]8 y
hr = m_pDisp->Invoke( G4 n5 V2 M0 d7 U0 q
requestID, & E( h: {7 {& s# u$ d# [ IID_NULL,9 A" M2 j9 y- l1 m4 J9 E1 }( z% g K
LOCALE_SYSTEM_DEFAULT, ' N V! @$ S6 i4 X: t7 K DISPATCH_METHOD, , R5 Y+ u8 Y) J8 i7 I( A &dp2, N9 N/ ?) F9 M, N. W
&var, $ q9 h1 \" ?: o &ei, 8 R% x% K' a, N' _% P &uiErr); $ v1 r* o, x$ f+ m' G$ H/ p5 x9 E5 c. P
SysFreeString(topicStr); C7 }* a, X5 E7 p
SysFreeString(itemStr);! H+ B$ L' @( D* y8 z8 T. d
请问该程序是获得extend里面的哪个值? & S% [3 a" i6 l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????