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:* |! V2 r2 z' }) [
Name = (WCHAR *) L"Poke"; * o c$ O4 j, ?/ y" ^: b0 n 5 n+ i+ z; G9 \% J
hr = m_pDisp->GetIDsOfNames ( : q6 M; q0 @; I1 z% A& ^ IID_NULL, // reserved7 O4 p) c @; H. f6 G1 H5 [4 q
&Name, // Array of names to get IDs for 8 m) M, w+ S$ s/ n- K z 1, // # of names in the array $ X# w+ y4 x4 q: y- T8 [+ A LOCALE_SYSTEM_DEFAULT, // System locale% A# ~& C8 p5 _; n9 |
&pokeID); // Array of IDs to fill on output 2 D8 O* H0 i. |8 j 6 v5 V9 T1 S9 w7 T) g I' l0 L; s% z/ P
if (hr) % `. I! @/ P m3 {2 ~0 Z { ! y/ C1 j7 @. P1 A5 U MessageBox ("Get Poke Unsuccessful");9 t+ G3 `# r7 @2 R, R. }( ~
return; 9 w8 y5 f9 Z- {! `% C1 H% I' @ } ' m7 p2 w. R u& v+ j! r, l) S! v" l# O5 F4 M
/**************************传递数据给extend**************************************/8 b, }) E7 g4 B- p; n0 \0 e4 e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , D) z' {' z3 S+ i8 G N& Y, d, R # b2 f: k X- d. T" L* a valueStr = SysAllocString((WCHAR *) L"1232"); F+ J8 f- g8 b3 J W VariantInit(&pokeVariant[0]); ; I! I- q2 z9 S3 {* b k* | pokeVariant[0].vt = VT_BSTR; / w" S( m' {% t4 E! a+ @& w pokeVariant[0].bstrVal = valueStr;6 C5 ~& K7 U" w6 x; S+ N2 c2 V. [; t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 F( `; b, l6 g7 e& f
VariantInit(&pokeVariant[1]); : L: x6 M+ I" F5 u
pokeVariant[1].vt = VT_BSTR; ) z* E; i# T6 Y pokeVariant[1].bstrVal = itemStr; ; S% ]- v6 s3 O4 T# \1 |" n ! q6 f6 L$ f b5 i5 M topicStr = SysAllocString((WCHAR *) L"system");1 c5 `' D y- w' X
VariantInit(&pokeVariant[2]); # k7 M' S' T6 R( \2 |. ~ pokeVariant[2].vt = VT_BSTR; 2 y" `2 c a& }; ~ pokeVariant[2].bstrVal = topicStr;( R2 h5 T" d2 w6 c0 a% B% p
% j1 T) ]% Q# l# N) r# m) b// Set the DISPPARAMS structure that holds the variant./ t+ G" C; A, Y E$ M; {/ `
% \* f1 J( Y3 _4 t) k$ A' z dp.rgvarg = pokeVariant;8 L" L8 L; Y4 B" |. E, Y
dp.cArgs = 3; # S. t. Z0 p1 J/ l+ N! |3 h1 W dp.rgdispidNamedArgs = NULL; , _- M; h( z7 H! J dp.cNamedArgs = 0;% O9 Q+ y7 Z" T7 A7 Q* w
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// Call IDispatch::Invoke() z3 L5 p+ v( u+ K' A' A- h% [2 D. b7 z w* t! c) G6 s3 l: t% L
hr = m_pDisp->Invoke( $ G/ j% }4 O; r6 S4 g pokeID,/ D& {( @3 |7 C& z, F: S4 }+ x1 P
IID_NULL,, P, o* J5 G; R2 Q8 h7 [
LOCALE_SYSTEM_DEFAULT,2 |0 t; { \' [# O) O/ i* Y
DISPATCH_METHOD,/ Q) \0 L% J2 f* S% \% D
&dp, ' V a8 O* t8 e0 M4 d0 y3 Y! j. t NULL,% R e3 \8 o8 S4 F0 p- Q$ ~
&ei,7 m0 ~0 q& i3 T1 r* ~9 k
&uiErr);4 F/ X e4 H8 P$ j' u; D% J/ y
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SysFreeString(topicStr);8 X% y- W3 ]- w; h7 @
SysFreeString(itemStr);" r5 ~" m! S/ {8 k* |8 B
SysFreeString(valueStr); . ?4 T5 w, H5 t! E8 ?/ I0 h) L) V* @; d" s) g' d3 L
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???$ p! w) _! _" t, ^0 \5 T
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????" p' a/ b; |/ X
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2.这是request的程序 ) T2 x) D5 d7 P, ]( C5 D; B// Request a value from Extend5 j2 _, G" \0 |: q. l
//; O0 i ~( [/ i1 i* ^& | r+ c
// Initialize the variant that will hold the BSTR. Set the variant's # g- e" t! G! R, o% f// type flag to indicate the fact that this variant holds a BSTR. Place the 9 Y e, h6 l& O5 F; N7 g" \- u4 d4 X// BSTR into the variant structure.8 `: d8 }; ?# K3 O c
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( b$ o/ P K: j$ K& U