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: ( C6 G- q) ~! w+ i, l% F$ X: V: OName = (WCHAR *) L"Poke";% t7 N9 B! G/ u; o) g/ K5 H$ L
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hr = m_pDisp->GetIDsOfNames (! s3 b2 x3 {/ E7 v- f, _+ I
IID_NULL, // reserved8 x; w! z0 _' s( r# p1 [ I$ f
&Name, // Array of names to get IDs for 4 T/ Q4 y4 X7 Q3 B% }( K+ W 1, // # of names in the array }- e3 N. B+ ?; F LOCALE_SYSTEM_DEFAULT, // System locale ; W2 ~! [5 \9 p/ \7 Q, ]9 k &pokeID); // Array of IDs to fill on output6 [* T& L6 j3 d$ G; z
" F8 m8 Q3 v' s5 m @1 ]6 Q- k if (hr) : N+ P5 P* U, f; p/ U5 I { / F- O+ @7 G( x9 Z( t9 u* L MessageBox ("Get Poke Unsuccessful");* f7 Q# ]8 z5 \1 R+ }" F
return;- w( H0 \5 N7 a3 r
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/**************************传递数据给extend**************************************/. v0 R" c& ~! g9 o) c& U$ x1 A
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + v Z3 h) K$ ?7 |% b; K3 h( ~9 c 7 e0 u2 o* N$ Q: y
valueStr = SysAllocString((WCHAR *) L"1232"); 6 z5 U% g( t6 T6 U, b6 g9 O/ B VariantInit(&pokeVariant[0]); 5 _3 A3 G: ?0 B+ q: C5 T1 t: Z pokeVariant[0].vt = VT_BSTR;) ^6 y3 C1 [# Q4 y+ k* W+ Z: c
pokeVariant[0].bstrVal = valueStr;4 Q' o% \7 F6 h/ D4 T4 A" s6 @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) ?/ Y" h% P4 @' G
VariantInit(&pokeVariant[1]); ( a! R$ Q0 }) _5 S pokeVariant[1].vt = VT_BSTR; 5 ?' ?# S( K o! ~; @! H h& m pokeVariant[1].bstrVal = itemStr;* d+ X. c3 B* g9 z! _/ {0 Y
8 R4 A; T) i; q7 ` topicStr = SysAllocString((WCHAR *) L"system"); & C' s1 @: s9 H1 E9 c3 M VariantInit(&pokeVariant[2]); ) H& y! I" Q8 v
pokeVariant[2].vt = VT_BSTR;0 ~# ~' g4 I; P. A9 C- h
pokeVariant[2].bstrVal = topicStr; / q9 `7 R. Q8 O- N5 k$ F% ]8 X% }* D% P& a0 o; f1 E
// Set the DISPPARAMS structure that holds the variant. / U5 ]- R8 Y: h* R! H7 J( b7 t4 y% Q+ m1 t# m# X4 J
dp.rgvarg = pokeVariant;( r& f, O0 A' q% z! Q' Z
dp.cArgs = 3; @7 `1 I2 o3 J
dp.rgdispidNamedArgs = NULL; ) @- q! h H- w% X9 F0 P dp.cNamedArgs = 0; , \- ]4 ]- l8 m" z. H0 I + E4 U7 s8 Z, o- u; v7 X( U) }// Call IDispatch::Invoke(): |* ^2 `* ~5 {- X* _
/ j" i) A8 J) H8 C1 I hr = m_pDisp->Invoke(: h4 @* p- M3 K' X# c
pokeID,7 e( R" r& K) k3 t. h `/ d
IID_NULL,+ W; z4 T5 a1 W" [6 I
LOCALE_SYSTEM_DEFAULT,* G0 a& f# N1 c
DISPATCH_METHOD, 7 G! N. n8 m ^8 g s& h &dp,1 b9 r- Q& M1 C& R* y
NULL,( S( o0 Z9 Z: Y A8 r
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&uiErr);8 J& ?/ l- O/ Y. e
! \9 W& t6 l$ W. ^ SysFreeString(topicStr);3 ~+ L4 m( F7 D; F! R
SysFreeString(itemStr); % X* j9 ~6 {, C) v SysFreeString(valueStr); 7 R" l# j4 v! F, D5 ^1 @( L4 G4 c5 G, a b, c1 F' d
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???" A) a, L" k0 y4 j" p+ i
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????( q X8 V0 c' G0 k a6 ?1 c
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2.这是request的程序- x: d: A- k P% u/ ?( R% M8 Q
// Request a value from Extend / G( E$ T5 m0 R& k% |//4 l) [9 e W2 U
// Initialize the variant that will hold the BSTR. Set the variant's ' r8 v+ }5 p$ @* C$ E5 A! H// type flag to indicate the fact that this variant holds a BSTR. Place the 8 ~/ I6 Z! ?% \+ K. `// BSTR into the variant structure.: z( n: O" u/ h+ Y4 a
3 d5 L: g9 S5 d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . B" G9 l% G5 `) l) q : `( G5 o& y% T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ M$ r- \9 A7 U* t
VariantInit(&requestVariant[0]); . b2 E/ l" T2 u" j' F* A
requestVariant[0].vt = VT_BSTR; " F5 b3 {3 \9 p. x# _. C requestVariant[0].bstrVal = itemStr; ) U8 k% K6 Y0 R1 U E! ^8 T7 I; R8 j7 o0 R
topicStr = SysAllocString((WCHAR *) L"system"); 1 H# L/ @; _) e0 i! q" L! Q7 F- G VariantInit(&requestVariant[1]); * u& n# Z j* Q$ X requestVariant[1].vt = VT_BSTR; : G2 L8 n$ x+ D; O0 [ requestVariant[1].bstrVal = topicStr;- L" Q9 e) y3 G$ V" m" ~0 R
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// Set the DISPPARAMS structure that holds the variant.- U$ t7 m% o1 w. r0 m. ^. g" y& ?
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dp2.rgvarg = requestVariant; 4 w6 [9 ], C. X! k dp2.cArgs = 2; o4 E, c \4 _" _1 p) l
dp2.rgdispidNamedArgs = NULL;; [" C8 X4 k" S- G3 Z: u- J' c5 E
dp2.cNamedArgs = 0;2 i3 x' `1 X i% S4 L