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:* |0 d! u8 F4 }/ B( Y
Name = (WCHAR *) L"Poke"; 4 e* ]6 l0 n# s# O+ w 3 X/ c6 J9 C% {$ P5 a) M
hr = m_pDisp->GetIDsOfNames ( 2 l8 o7 L- k* w$ D IID_NULL, // reserved ! T5 l/ ~7 c0 u+ |# n' s4 V) H/ E &Name, // Array of names to get IDs for. O4 d. T' m' j) q3 V! S) @3 A
1, // # of names in the array / S, Q5 x- f' n( E! h LOCALE_SYSTEM_DEFAULT, // System locale! D2 v( d' `8 t o
&pokeID); // Array of IDs to fill on output - h6 J3 p# b M" F& o - |1 n8 o, q ?% r) \3 A9 y if (hr) & g6 t/ ]/ r/ h {" W9 S/ i, c' \3 {9 U# ~
MessageBox ("Get Poke Unsuccessful"); 0 a: Q3 c0 U z return;, [, K1 R6 z: e {! O
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( f8 ~% I$ y. D- |# h+ L/**************************传递数据给extend**************************************/ 5 P; D& u/ \$ w2 G8 d( | pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & ^8 O+ v" ~+ @# } . J' P" V* B0 p) I
valueStr = SysAllocString((WCHAR *) L"1232");% a& @# ~( ^' D4 j$ z" p
VariantInit(&pokeVariant[0]); ' z* R/ F6 m. U
pokeVariant[0].vt = VT_BSTR;/ R$ g: `. f p
pokeVariant[0].bstrVal = valueStr; % U5 }' J0 t: @. j! p& _: O " _9 |/ X! o6 x2 C& {1 d4 }5 J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 | D" ]% N0 V$ V0 g3 Z VariantInit(&pokeVariant[1]); ; m& p1 {$ g8 J; M- h( D pokeVariant[1].vt = VT_BSTR; 4 R) G" R, C/ j. i! g/ k pokeVariant[1].bstrVal = itemStr; - e* c8 m; _; K5 y : U( Z9 E* @8 E) c3 R2 \/ O topicStr = SysAllocString((WCHAR *) L"system"); - J% e: v1 o% p3 h: i VariantInit(&pokeVariant[2]); 6 y( C, Z+ i7 |8 ]2 Z pokeVariant[2].vt = VT_BSTR;$ n9 ^. M G; T2 ]
pokeVariant[2].bstrVal = topicStr;/ ]1 A% Q* o3 [: k3 r+ ^2 d
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// Set the DISPPARAMS structure that holds the variant.! y# g) i1 m' U: z
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dp.rgvarg = pokeVariant;) q& i! p B+ f& D5 N4 l
dp.cArgs = 3; ; K2 g7 b5 }$ u/ K7 m9 o dp.rgdispidNamedArgs = NULL; 3 @6 l- ~/ N; J8 V3 C2 b8 k, i. ~ dp.cNamedArgs = 0; . t; h: H' `8 ]" g1 h1 m $ e. H: e* _: F; [7 S// Call IDispatch::Invoke() 1 l5 D# t6 Q' P6 o7 f7 H4 ?: n$ B3 a
hr = m_pDisp->Invoke( 6 A% {6 I: z; a) n4 t( T pokeID,$ _9 X. N1 v6 m3 D; N2 H
IID_NULL,% y, f5 S( o q6 a$ O" _
LOCALE_SYSTEM_DEFAULT,1 V/ l) e- K3 \5 c: y* G. d
DISPATCH_METHOD, W4 N5 G1 `: z8 n+ y
&dp, ' _3 V8 Y# x# t% ` NULL,7 Q# K$ A* ~, G( i
&ei, ) |7 t" A3 d8 m9 | &uiErr); $ L4 V. t2 ] ]" K8 d/ N% {$ G, x
SysFreeString(topicStr); + c" F! F( |/ |; z3 Y0 O8 K/ g SysFreeString(itemStr);" @3 n9 c4 y$ w/ G" L
SysFreeString(valueStr); ) [* w" D% z1 L) L9 a# X * B4 i, O. C& Z1 o* G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???. Z$ C; b0 J5 ^! Z- }: H$ m' K
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 X7 V/ J; g3 p0 Z7 L0 d
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3 F( F" N8 b+ x% c9 d2.这是request的程序2 T1 K' ~' \' S
// Request a value from Extend 3 t8 C6 ^" A: A8 [ {//1 L3 X; K# ? }# e
// Initialize the variant that will hold the BSTR. Set the variant's ! B5 O9 `$ o3 \ J' ~. u2 ?+ c// type flag to indicate the fact that this variant holds a BSTR. Place the' S- }: Z! a n4 H
// BSTR into the variant structure.2 {; t% w/ U; \+ @4 _- j4 R
- Z; b. r1 V9 n/ U; ?$ L8 |/ | requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 a; R5 K) Z# k: U; H' Y: d9 h, t # L1 q% W2 i, q: ^7 X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 D9 I: q' K. c3 X0 |7 S# l2 b0 P- k VariantInit(&requestVariant[0]); v, W% c& _# a- j; L0 z* N requestVariant[0].vt = VT_BSTR;& E. H. e1 }6 W* f, [! T6 W
requestVariant[0].bstrVal = itemStr;8 T; }( j! _2 O' N+ }3 X
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topicStr = SysAllocString((WCHAR *) L"system"); & R7 [) a) {* U VariantInit(&requestVariant[1]); . Z- D9 R3 ~& Z0 a# {
requestVariant[1].vt = VT_BSTR; 2 a8 s- @' s8 A% x( H, s: H& b* \ requestVariant[1].bstrVal = topicStr;! J0 Q; w- m4 z: H/ r$ p
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// Set the DISPPARAMS structure that holds the variant.6 l! ~5 V9 [* q( @ P8 W