. l* t! v3 c& N( S9 C* a# x2.这是request的程序4 v; k: j1 E$ C. o6 N' X
// Request a value from Extend # S6 }, E& Y. l) V. P* S! H3 ^//8 U- `# v C, I. |& O- Y! w: {
// Initialize the variant that will hold the BSTR. Set the variant's 1 S+ R: W( Y- G// type flag to indicate the fact that this variant holds a BSTR. Place the 6 h# N$ n8 U7 z) ~- e* ~0 m// BSTR into the variant structure.6 u' P- v# g9 R/ t, F$ |& R R7 C+ `2 b
( x6 l3 X/ ^" b ^/ n6 z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% M% X) A/ I+ y# V1 j1 n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( ?/ b8 w, K% c% z
VariantInit(&requestVariant[0]); % o8 i2 O. o# [ requestVariant[0].vt = VT_BSTR;( V2 Y, F& o% H& v8 A4 R) ]
requestVariant[0].bstrVal = itemStr; 9 q) d" u* M7 Y. P + D, F7 |! t9 @. x2 W topicStr = SysAllocString((WCHAR *) L"system"); ( B! y& x, {1 e% V8 |5 i& v VariantInit(&requestVariant[1]); 1 J5 E" j! \; Y, f X requestVariant[1].vt = VT_BSTR; 4 y( |( j& q# X. X+ { |2 s requestVariant[1].bstrVal = topicStr; 5 I, F; `$ i+ K+ o" N0 ? A ; e+ Y( C, {9 b+ n4 p, P// Set the DISPPARAMS structure that holds the variant.2 H, E) W6 z* n. G; ?; T+ x" Z. ?
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dp2.rgvarg = requestVariant;/ @; B4 K R0 `. c
dp2.cArgs = 2; & F# Z: M" }2 u. O. E8 X8 b. G$ U# J dp2.rgdispidNamedArgs = NULL;6 Y- i/ c; B) ?$ J/ w7 e
dp2.cNamedArgs = 0; $ C3 w/ e1 J. V% w $ ?" N1 i* w' C3 v" N var.vt = VT_EMPTY; ) t5 y. e T$ p; r% P% V' H; h0 e * j9 @* J6 A A0 h9 ^, U) i. q1 z6 s// Call IDispatch::Invoke() & F7 M! h, o: \ \) @9 v# \% V6 O5 L3 u* ]: n
hr = m_pDisp->Invoke( 3 D+ @9 ]: |& ? requestID, : ~& G& ]+ S# U( r5 H, @) V% y IID_NULL,. z5 o/ l8 l' F. Z; V5 b' b. Z/ q
LOCALE_SYSTEM_DEFAULT, % }& G% ~) Z! I& K' g9 k: K( | DISPATCH_METHOD, - _( ?; ^5 U- W5 D2 W &dp2,7 Z; O& [; u& y5 e
&var,9 I/ ~, h" R" p
&ei, ' a( H# Y. a' e) q6 O/ W &uiErr); b2 T/ i6 D' H W+ g: ~4 t# P