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： ( M, e. e1 k6 a" V7 YName = (WCHAR *) L"Poke";0 o3 ~8 p! z8 q- G- R* X: e/ s# G$ f
% x( S. z: u* o0 ^- p6 M hr = m_pDisp->GetIDsOfNames ( 3 {9 v+ r1 v9 v' t+ n" h7 y IID_NULL, // reserved 7 Z2 Y+ U; t2 {9 i9 b2 k" I &Name, // Array of names to get IDs for + d$ A" D# E% s* I! _ 1, // # of names in the array 0 E' t6 J5 j h. y LOCALE_SYSTEM_DEFAULT, // System locale 9 n8 o* H$ E$ Y+ { &pokeID); // Array of IDs to fill on output# J! t% `5 b; L0 ]5 q, L" q2 A
/ p5 s( F. `3 j$ S9 C if (hr)- `7 {& `7 I, {* C; ^' |! O/ Q
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MessageBox ("Get Poke Unsuccessful"); ; A7 ~! D9 O9 {; x- ?; L- _6 j, V return; 8 b: d5 A9 T. j$ | }5 `# _% e1 l/ O0 i% q2 g3 N
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/**************************传递数据给extend**************************************/" n" Q- M' X2 k2 ~7 G+ f9 o0 I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 v8 q% o" L1 @2 ?% P/ z, d - c8 F& L8 _% @ valueStr = SysAllocString((WCHAR *) L"1232");/ f8 l. f: ]: B) ]) }" d. b5 Q
VariantInit(&pokeVariant[0]); # W/ L1 H4 D, h" X% g; v pokeVariant[0].vt = VT_BSTR;$ H9 c6 c% M& l" l& e/ Z
pokeVariant[0].bstrVal = valueStr; / L4 A/ ?! u7 E: F; `/ B* d3 _2 u1 f0 |) U) D9 B3 R7 w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 x7 M. y x5 i7 p/ D
VariantInit(&pokeVariant[1]); X. z% d9 c3 _+ { pokeVariant[1].vt = VT_BSTR; 9 O4 ]+ M, d0 \0 ~7 z; v0 x pokeVariant[1].bstrVal = itemStr; * t) E' Q+ Z9 Y7 t0 s* c3 D2 N ( {. E# f, E3 N2 s! \7 t$ K+ I topicStr = SysAllocString((WCHAR *) L"system");, Q. i8 H/ z& W) d; g3 n
VariantInit(&pokeVariant[2]); 7 |6 ]: ] a: M Q4 R4 ~ pokeVariant[2].vt = VT_BSTR;. r, P8 Q' B* N9 O1 p! M: u/ q
pokeVariant[2].bstrVal = topicStr;5 q1 p; t* _+ i7 I F' `% x% m
/ e' N. V# @/ `// Set the DISPPARAMS structure that holds the variant. 0 I0 s) x1 N0 M5 f& H1 P + j- j0 w* z9 J dp.rgvarg = pokeVariant;5 r& Y3 }& U2 d* U
dp.cArgs = 3;6 J% A! K1 r& h2 O
dp.rgdispidNamedArgs = NULL; # f0 u% Z/ J: t" y dp.cNamedArgs = 0; % B# z) i; [ ]% N% L( ]2 F . n0 q x K7 B/ o$ ]// Call IDispatch::Invoke() $ i9 D- P& N; X; N, `) N1 F ! q7 p6 n, H/ U hr = m_pDisp->Invoke( - U( V5 E0 T4 s2 U pokeID, : E$ q$ [4 W5 H, T0 Y IID_NULL, / I% Z' M, c. e" |( F$ j LOCALE_SYSTEM_DEFAULT, ( O% j* V3 W2 z, h* Q# G( U1 H DISPATCH_METHOD,2 k: k+ x9 q+ O& W6 T8 G
&dp,! X' O/ O0 U, t2 p% }
NULL,+ X( c! u; R. c
&ei, 0 W1 P0 X4 X" H# z K# E2 [ &uiErr); 1 O2 M$ w* C( W a9 V# @ # X; t. v5 G( a* u5 k( ]0 j SysFreeString(topicStr);8 z& q/ w# y( x2 G+ \4 A
SysFreeString(itemStr);9 m4 j; A: q/ K: M8 t. h' @7 \
SysFreeString(valueStr);" f3 p4 t2 P* m8 L# q! r
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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？？？ # U+ M* `( K9 [1 q+ ?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？？？？% q0 S1 y. }2 @( F! ^" E6 Y6 a
g/ s5 V' T9 D6 I 7 D7 |! L2 a* F! ?* K3 j! q2.这是request的程序 ; | r- S. [. J3 ~. D0 x/ o& W// Request a value from Extend! A9 w) z7 @2 ~: u" {5 ^8 s# ]
// ( b& C2 w, Q8 b; o' F1 ^9 m) Q' o1 J// Initialize the variant that will hold the BSTR. Set the variant's 1 I1 ] U/ a# B$ G( N// type flag to indicate the fact that this variant holds a BSTR. Place the + J4 M5 ?) Q! e3 c' O: G// BSTR into the variant structure. 2 |$ L; |* }) t, I& f ; G3 ?7 m& N5 G# `# J& i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. D/ {# F% ?" k4 h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " E2 @- @; N0 D* ^" p2 m VariantInit(&requestVariant[0]); ! E Q6 p. ?4 a0 r
requestVariant[0].vt = VT_BSTR; ; `5 b( h1 o, @* f' ` requestVariant[0].bstrVal = itemStr; ! l x: Z7 ~# r* E) j5 D$ Q* F+ r2 T5 g2 A
topicStr = SysAllocString((WCHAR *) L"system");6 x; w4 d9 D& y! ~4 {+ U& \
VariantInit(&requestVariant[1]); 6 J! v! J: O6 I" d5 Q* ~# {* N/ `8 q: c
requestVariant[1].vt = VT_BSTR;; J9 J, p) s7 l4 ]- R7 ~& G+ Z2 Q" e
requestVariant[1].bstrVal = topicStr;% z* r1 p1 [8 s3 m9 M# W
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// Set the DISPPARAMS structure that holds the variant. ; i9 R% M( {) }. \* ~/ t9 r! U 8 n4 |% S! n9 S0 ]1 U9 ~ dp2.rgvarg = requestVariant; 5 F3 [1 v9 p( P) O2 d: @) i dp2.cArgs = 2; 5 U9 a! E" d. L% @ dp2.rgdispidNamedArgs = NULL; {. }! P8 w% q/ O' j$ v
dp2.cNamedArgs = 0;# v, R# t8 b! a& ]
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var.vt = VT_EMPTY; - G: c% y. X. V; r8 L6 \: {/ D( ]! w" ^/ @8 I& s+ M
// Call IDispatch::Invoke() 9 Q! L( ]& ]. J' r! R' r " ]! S- Q( N* F& u' T. T hr = m_pDisp->Invoke(+ S( Q+ ]- S. _. |4 L9 e: N
requestID,, c0 r4 @) v* _, c( i- K$ F5 k
IID_NULL, 4 E. p$ s0 V" z8 C+ `9 Q. I( j9 _ LOCALE_SYSTEM_DEFAULT,# d' M6 o% s$ r6 U6 g+ @
DISPATCH_METHOD, + C9 A8 T, M. s0 Z! b/ U &dp2, , C1 G. g2 ^% b! W7 S- ? &var,3 j/ Z7 O) I- z
&ei,5 E9 B) u1 r9 `/ t
&uiErr);8 o0 g. M- t1 B
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SysFreeString(topicStr);$ M! u( X, o3 [/ @7 H7 r$ j# e
SysFreeString(itemStr); 8 P4 r/ G. S5 o5 E8 M( {% D: l请问该程序是获得extend里面的哪个值？8 W3 c: ]4 K9 n& `7 [, _
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
