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Page 465 DLL function calls, 367369 DLL functions, 47 MyDLLFunction, 326 passing strings to, 340 that return structures, 370 structures and, 362 and variants, 356 DLL parameters, 368 DLL servers, 113 DLL structures, 365 DllCanUnloadNow, 373 DllGetClassObject, 373 DllMain, 373 DllRegisterServer, 373 DLLs custom, 341, 355 Executable Finder, 22 finding, 284 finding API functions in, 377394 frequently used, 282284 names of, 281 Visual Basic, 114 DllUnregisterServer, 373 dmDeviceName, 174 dmFields, 204 dmFieldsbits, 206 dmFormName, 174 DM_IN_BUFFER, 204 DM_OUT_BUFFER, 204 DocProp sample project, 7677 documentation importance of, 173n, 203, 206 limitations of, 143, 266n, 271, 272 using Microsoft, 395 DocumentProperties, 75, 203206 DOS header, 381382 Double, 296 double-byte characters, 158 double NULL characters, 176178, 192 dragging/dropping files, 138139 DrawAnimatedRects, 144146, 272 DrawIcon, 26 drawing, 28 OLE objects, 124129, 251254 using XOR operator, 307308 drive mapping, 9499, 221227 DT (person), 7882, 207212 DTR_CONTROL_HANDSHAKE, 314 DumpBin.exe, 284, 377 DumpInfo program, 102, 284, 372, 377394 DWORD, 54, 160, 200, 407 dynamic string pointers, 365 dynamic strings, 174, 259260, 264, 342, 365369 E #else, 372 empty strings, 9, 153, 154, 428 EndDoc, 253 #endif, 372 entry points, 16n, 158, 172, 194 ANSI entry points, 10, 16, 42 indicators for, 10, 24 LoadIconA, 167 Unicode, 10, 16, 42, 340, 342343 Enum statement, 218 EnumDisplaySettings, 41, 43 enumerations of registry key values, 5761 of registry keys, 57 of registry subkeys, 5357, 186189 Visual Basic, 217 Enums, 403404 EnumServicesStatus, 399, 407, 409411 ENUM_SERVICES_STATUS, 409411 ENUM_SERVICE_STATUS, 399400, 401402, 413 EnumSystemLocales, 110111, 234235 Environment string, 176 environment variables, 4751 EnvStr.vbp, 47, 176 Err object, 151 Err.LastDllError, 10, 96, 155, 164, 240, 411 ERROR_BUFFER_TOO_SMALL, 81 ERROR_INVALID_PARAMETER, 106 ERROR_MORE_DATA, 64, 94, 221, 411 errors ActiveX Component Can't Create Object, 240 in API function results, 239 bad DLL calling convention, 8, 257, 326328 ByRef argument mismatch, 171 Cannot Find File message, 179 Can't find DLL Entry Point, 195 compile time, 85 in declarations, 237 descriptions of, 17, 51 DLL declaration, 316 HRESULT, 239240 LastDLLError code, 17n LastError, 17, 151154 mapped drive message, 96 OLE subsystem handling of, 249 overflow, 315, 355 parameter, 161, 181 registry key, 179 runtime error 49, 326328 runtime error 453, 15, 149, 158 structure declaration, 194 that can be ignored, 257258 ways of checking for, 423 Err.Raise, 239, 240
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