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:% [7 Z6 ?+ C2 Y9 f, u) }
Name = (WCHAR *) L"Poke"; 8 d+ W" Z2 I, P% c8 a; o# H. d# k0 k , F3 @' N- L7 C+ H! [" B
hr = m_pDisp->GetIDsOfNames ( ( r) b) e) x- t( d& Y$ H IID_NULL, // reserved 9 p7 g, ?, A0 s1 z &Name, // Array of names to get IDs for4 r0 G, g; w9 Y2 ^5 f8 r
1, // # of names in the array - `- j: {# K# l LOCALE_SYSTEM_DEFAULT, // System locale ~7 x3 q- {1 u6 \ &pokeID); // Array of IDs to fill on output6 B- l3 c4 Q$ X% S5 p1 E7 y# L3 Z
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if (hr) # V- c3 n# a8 y0 R* r { % A1 @/ }. H' l MessageBox ("Get Poke Unsuccessful"); 5 i8 T7 }# ?$ k- X. V& L return;0 F0 f% }6 w8 k+ \1 P
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/**************************传递数据给extend**************************************/ ' E: w: `6 ^0 Y2 p1 \% W, H pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - X" E! i( l' U( L, A1 c : J! T, J; |$ Q5 S
valueStr = SysAllocString((WCHAR *) L"1232"); ]9 B% k; r/ f2 |
VariantInit(&pokeVariant[0]); ( e0 q ~. B: w# U" c. q pokeVariant[0].vt = VT_BSTR; % A _" O' U6 Q: I pokeVariant[0].bstrVal = valueStr; ! b2 j2 v; K* N ], k- n $ N, [% P; Y, m* z( @/ C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 u, o, u- z2 B) K0 H% @$ O6 L+ k
VariantInit(&pokeVariant[1]); 3 Q0 B' {" ^0 F" V& h7 q( \- X pokeVariant[1].vt = VT_BSTR;1 Y, `; P T) a c; C! g
pokeVariant[1].bstrVal = itemStr; 0 }9 J4 q8 m% G0 a- O! K3 N a2 a0 I( M5 b, N1 C
topicStr = SysAllocString((WCHAR *) L"system"); 6 q8 U8 [/ R: r1 r VariantInit(&pokeVariant[2]); 4 J! d! S7 ~1 Q+ n7 o p- a
pokeVariant[2].vt = VT_BSTR; ( s- g$ P# Y h G6 g pokeVariant[2].bstrVal = topicStr;2 h1 u# p6 a, O- C0 k7 F! g) L
+ E; `7 E$ X8 }4 S: W// Set the DISPPARAMS structure that holds the variant. : o4 ^/ q: b+ C0 U. X9 E1 n3 m( c9 w4 G# x
dp.rgvarg = pokeVariant;/ ] d. Y5 n% U/ _! l2 A
dp.cArgs = 3;- l3 l2 g, `5 g+ D0 s4 d
dp.rgdispidNamedArgs = NULL;& Q# e- P4 G% Y4 c
dp.cNamedArgs = 0;2 P0 Y; Q5 p" n5 V
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// Call IDispatch::Invoke()! b$ e" S5 W$ i! s. O( k. Q2 z
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hr = m_pDisp->Invoke( : {) W$ N# r5 {- }. v! A! ?* j5 V' T& S pokeID, 0 T& }# A( E% i) s; V4 { IID_NULL,7 M2 O2 M- F8 A
LOCALE_SYSTEM_DEFAULT,6 M h, @7 K; Z2 l7 _' j7 t
DISPATCH_METHOD, ! T- w$ R2 I' B1 f w* G &dp, g. T+ Y$ ]4 }+ `
NULL,- E( h* k& ?$ Z! f( J6 i
&ei, " S h* v' K V: _+ x &uiErr);( L8 N6 {0 ]( S/ f' k3 n/ V
% }9 K9 b2 V1 K3 q9 B" ^$ p3 ]' @ SysFreeString(topicStr); ) Q X% @8 N7 O; H4 a SysFreeString(itemStr);0 S. e7 f( l/ j: z. U/ \% B
SysFreeString(valueStr); , G/ H# n' k2 p/ l " Y9 X4 W3 s; ]* I5 Y- O J$ 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???9 u' {$ o; c+ i6 v0 R/ M
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????7 e0 E, e( }1 A/ U6 b$ k+ J; f+ n6 R
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1 N2 p% K. s, Z- O- Y4 l! N2.这是request的程序; Q; u5 b2 [( S: A+ t
// Request a value from Extend 3 W: P: Z3 `' o* g//0 ?0 f/ m! i9 W, J# G+ |
// Initialize the variant that will hold the BSTR. Set the variant's* B# I' y% l! w
// type flag to indicate the fact that this variant holds a BSTR. Place the ! U7 }+ k% h, N: S b// BSTR into the variant structure. 5 n* X0 t: ~, f$ e; S* d) l3 V% O( Z l: ]0 C/ T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: _2 e- N4 N0 _3 P6 o9 r
3 s0 f2 T4 N3 T0 n1 V% | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & \' @, e. t0 G" N: @ VariantInit(&requestVariant[0]); - D8 P# o, P2 e7 A* X5 S1 A requestVariant[0].vt = VT_BSTR;' g3 z/ A3 T7 n; b2 I2 }. g: X
requestVariant[0].bstrVal = itemStr; 7 b+ y2 ?( ^( S# w* ]1 \( q4 C% {" j% E
topicStr = SysAllocString((WCHAR *) L"system");+ o0 ~1 j/ n% R, c8 {
VariantInit(&requestVariant[1]); + ~4 w7 j. k& }" ?2 W. N+ `4 x
requestVariant[1].vt = VT_BSTR;9 Q7 R" l7 |' Q+ c5 r0 b
requestVariant[1].bstrVal = topicStr; ' {) Z) @" E; `# z# J% Y3 J9 _ - w8 I, q2 ]5 O. }% P" H// Set the DISPPARAMS structure that holds the variant.* C" J. A; z0 U! x7 N
( Q, \ ~, o' E, _3 M dp2.rgvarg = requestVariant; 9 N2 v5 W$ c9 ?7 k4 V) ~# T4 M dp2.cArgs = 2;* ~+ ~: {: B# I) d) Q; J, L' B
dp2.rgdispidNamedArgs = NULL; : u' ]. c( \ E' A4 l dp2.cNamedArgs = 0;! e: E( Y/ }$ d+ d
/ m0 F) K3 B( Z& ?: Z var.vt = VT_EMPTY; 8 ?5 D9 Q+ [; V! k7 x" ?$ R- Q! h. X5 [ ) t+ a, z( Q A// Call IDispatch::Invoke()! @8 @2 \- P8 Q9 o