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：2 C# w# Y% ?5 }$ M
Name = (WCHAR *) L"Poke"; : J! o6 C. i* f 3 F6 T; i$ m4 O$ K9 Q. b
hr = m_pDisp->GetIDsOfNames (' Y8 N& ?! U4 F$ R! v
IID_NULL, // reserved . \1 {5 }$ Y, n2 G; |! P4 v &Name, // Array of names to get IDs for8 r* g5 z: C" M# a2 {
1, // # of names in the array7 h9 p7 t) _/ S) _- y4 V
LOCALE_SYSTEM_DEFAULT, // System locale+ W, n4 Y3 [8 K! b( w* ^
&pokeID); // Array of IDs to fill on output" ]5 y9 Y+ M# v5 N4 B$ I ?
. k% o3 G0 @/ \' y s, U* I* I4 k: t if (hr) 9 G0 c3 r; p. V$ [$ b) b4 ^ {; |/ q# N* U2 b- b8 s
MessageBox ("Get Poke Unsuccessful");, [9 L% U% z3 U9 a! p i$ G
return; $ f+ E% V" @5 w: R- ` z& m) `8 b- I }; }: }( m" P9 T. }9 p8 A0 B
5 }4 Z. w. z8 J! T0 a1 H5 {6 ~6 I/**************************传递数据给extend**************************************/ 3 h# }) t: o1 G" s* E4 U7 Y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + w7 O. p' f7 j 2 V. v' L+ y3 T9 u0 g; z; V- y valueStr = SysAllocString((WCHAR *) L"1232"); 2 q: B( [& r2 W5 ]% p' }* L VariantInit(&pokeVariant[0]); 4 _% l" Q9 x& d/ Y& E" |
pokeVariant[0].vt = VT_BSTR; 2 J1 f+ v. Y( U8 o \, D( r pokeVariant[0].bstrVal = valueStr;+ p0 H$ w8 ~5 p! `
3 e" r! G: _' {4 M8 N/ Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 z! i% b- W1 z" A
VariantInit(&pokeVariant[1]); 4 T6 L/ _! ` D1 ` pokeVariant[1].vt = VT_BSTR;5 p" r$ [& V3 N0 v1 ]- b7 m% l
pokeVariant[1].bstrVal = itemStr; , N) g U) h, j, y$ M6 _& t: p8 v. S5 w" Y
topicStr = SysAllocString((WCHAR *) L"system");& \7 V, z: I! v; b. Z
VariantInit(&pokeVariant[2]); - u: u4 D U% [) S/ P& ~
pokeVariant[2].vt = VT_BSTR; 8 j& \ X% P5 r$ d; F. I pokeVariant[2].bstrVal = topicStr; 1 f. s9 U1 E: O& ]. Z3 X# L6 A" V) k
// Set the DISPPARAMS structure that holds the variant.8 W" V$ w" X$ Q" _, Q
+ V* ?6 }2 z- p
dp.rgvarg = pokeVariant;/ A9 h. L; z4 A9 M0 ~* Z
dp.cArgs = 3; 2 ]5 R+ a* }# } _& c dp.rgdispidNamedArgs = NULL;5 _6 o: \2 B0 H
dp.cNamedArgs = 0; 9 W2 N) a8 N* q- j, ~ " E! I/ r, B/ ]( v+ n9 z// Call IDispatch::Invoke() ' j: P, M; t% o. b/ Y! @ 9 g- [" f K1 N hr = m_pDisp->Invoke(% w$ L( A" N; b
pokeID, ( D! Q0 T* `' U( a' P IID_NULL, 4 l/ z1 e$ z( k+ v2 `1 s6 @# Y( k5 [ LOCALE_SYSTEM_DEFAULT,1 ?, z7 h; d. T$ M6 `
DISPATCH_METHOD, : P4 L( C/ T; n, }; W &dp, ' {0 V* b& E9 X% K( ^9 x- [: G NULL, ( D# U g C8 \6 |2 v9 X &ei, 2 N/ }) X2 ~ v" [- L; L3 z$ l% u0 h7 V% \ &uiErr); : J! _4 ^+ u) E, D4 v0 S+ g5 C- j 8 l$ @5 L5 a. U4 |# m7 @( x' e SysFreeString(topicStr); " l8 P4 @( a6 X SysFreeString(itemStr);) U! [' Z c6 Q+ X) K `% p5 c
SysFreeString(valueStr);/ H3 X& p; B. T$ b7 t$ e9 V
. Y& V. N7 v5 Z* b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？？？0 O& x# n: z- Z: a) W
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？？？？ ; v: \7 k4 J5 m4 w* X 8 E5 b+ S' P0 e8 \; Y+ O + @- O* u$ ^4 g! w" a2.这是request的程序- B* N5 J& K9 a4 G. ?0 c' X
// Request a value from Extend+ C& ]/ c; ~1 P
// 1 l& o6 Y* k' A3 W& @1 e6 d' ?// Initialize the variant that will hold the BSTR. Set the variant's 7 q. p e- }* H D9 j9 n# n7 [// type flag to indicate the fact that this variant holds a BSTR. Place the % `, [9 M+ m% q$ ~1 d+ K: A7 C, _// BSTR into the variant structure. - {1 z6 s" F( w4 l9 r9 b - _' K& C+ J' d# e- r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! H) y! }" D" [2 }) u, a
. F# x' p1 }. i8 Y- Y- L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, c0 s! D% H1 k# @% F
VariantInit(&requestVariant[0]); . N& g5 W8 s5 U! }) f, U' P
requestVariant[0].vt = VT_BSTR;! l' \4 C( G7 ~) B0 [& e; L z
requestVariant[0].bstrVal = itemStr;$ i/ I2 ^( L$ v% v0 t' {( M3 ~
6 b7 X+ j, h8 b* l6 C5 H0 C3 i4 Q# ] topicStr = SysAllocString((WCHAR *) L"system"); # h( @; D: a( o5 [9 l! }( _1 t VariantInit(&requestVariant[1]); 4 y( h1 u, p) Y8 { requestVariant[1].vt = VT_BSTR; ; f ^0 V6 K5 V requestVariant[1].bstrVal = topicStr; ( [' y: t* s- V0 ~+ u $ t' G/ Y+ A* C, ^- x8 i0 P" s// Set the DISPPARAMS structure that holds the variant.: ?6 ^2 S) G n: U) w9 a* p( x0 @5 }
7 g+ Q" i6 z' K5 V" g [( L dp2.rgvarg = requestVariant;! E* y; ?, \9 v6 i3 o
dp2.cArgs = 2; . I9 R2 {: p8 Z7 d1 L5 _ dp2.rgdispidNamedArgs = NULL; 2 G* h. t( P1 K9 z. F8 X dp2.cNamedArgs = 0;2 P7 w* `& p& ]6 c
- G- \4 V% Y& v$ h var.vt = VT_EMPTY; ) W. E1 Q8 s! g7 G/ ~1 u0 t- w , Q2 L# v7 R- X// Call IDispatch::Invoke() 7 o: A* ~# c' A/ g* k/ B, _ - K$ v6 m! A- A L2 W6 E0 Y hr = m_pDisp->Invoke( 2 S, z" i/ B7 H& a/ O requestID, % N0 n/ @6 ~5 O' Y+ [' Q9 P' B8 B IID_NULL, * O& M. L1 J1 i3 ]5 |, t: Y: e& K LOCALE_SYSTEM_DEFAULT, # A. ?$ H+ J" |$ m2 d DISPATCH_METHOD, 5 \1 u: L9 I8 u; @: v+ ]% U &dp2, 4 P9 K" Q4 [$ H" R" F &var, 7 Y- _; {5 T; e' M &ei, 3 Z2 x) f% [* J% g( ~% L8 L &uiErr); 6 Q+ E1 ?5 e% z7 F( l1 b ; g* t% z( b+ G {; G$ d3 o SysFreeString(topicStr); 2 J$ r4 a4 ?$ p* _5 S SysFreeString(itemStr);* b5 V$ o! E: j, {% x3 r
请问该程序是获得extend里面的哪个值？ * v0 v6 G# v2 b# O/ C( |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
