Perform insert/paste operation in the background. For most of them, there is a definition for the format name in the header file shlobj.h: Definition The Shell Clipboard Formats are used to transfer shell objects via clipboard and Drag & Drop. LCID for CF_TEXT to CF_UNICODE conversion Resource Interchange File Format (RIFF) audio All non-standard formats must be registered using a unique format name. The Standard Clipboard Formats use numeric IDs defined in WinUser.h. For MSDN links in the tables, the indication is omitted. Links indicate the destination in brackets. This example declares the ChooseColor function which utilizes the CHOOSECOLOR struct.The following type definitions are used in the below tables: ANSI text Null terminated ANSI or multi byte string Unicode text Null terminated Unicode (UTF-16LE) string ANSI / Unicode text list List of null terminated strings followed by a NULL character (double NULL terminated) ASCII / ANSI text ASCII 7-bit text by definition but ANSI 8-bit text may be supported DWORD (BOOL) DWORD value representing a boolean value ( true if not zero) GetOpenFileNameWinAPI = Trim$(Replace(OFN.lpstrFile, vbNullChar, " ")) flags = OFN_FILEMUSTEXIST Or OFN_PATHMUSTEXIST
lpstrFileTitle = String$(MAX_BUFFER - 1, " ") & vbNullChar lpstrFile = String$(MAX_BUFFER - 1, " ") & vbNullChar lpstrFilter = "All Files" & vbNullChar & "*.*" & String$(2, vbNullChar) Public Function GetOpenFileNameWinAPI() As String Private Const CDERR_REGISTERMSGFAIL = &HC Private Const CDERR_MEMALLOCFAILURE = &H9 Private Const CDERR_DIALOGFAILURE = &HFFFF& Private Const OFN_LONGNAMES = &H200000 ' force long names for 3.x modules Private Const OFN_NODEREFERENCELINKS = &H100000 Private Const OFN_EXPLORER = &H80000 ' new look commdlg Private Const OFN_NOLONGNAMES = &H40000 ' force no long names for 4.x modules Private Const OFN_NONETWORKBUTTON = &H20000 Private Const OFN_NOTESTFILECREATE = &H10000 Private Const OFN_NOREADONLYRETURN = &H8000& Private Const OFN_EXTENSIONDIFFERENT = &H400 Private Const OFN_ALLOWMULTISELECT = &H200 Private Const OFN_ENABLETEMPLATEHANDLE = &H80 Private Declare Function CommDlgExtendedError _
Private Declare Function GetOpenFileName _ Private Declare PtrSafe Function CommDlgExtendedError _ Private Declare PtrSafe Function GetOpenFileName _ To pass an array to a DLL procedure, pass the first element of the array ByRef. VarPtr - Returns a pointer to a variable.StrPtr - Returns a pointer to the string portion of a VBA string variable.ObjPtr - Returns a pointer to an object.In VBA7 these functions return a LongPtr and in VBA6 they return a Long. VBA provides pointer functions which can be used to retrieve pointers to variables. Data Typesĭata types need to be matched with equivalent types between VBA and C++.
WINDOWS API COPYIMAGE WINDOWS
Windows API procedures that do return a value should be declared in VBA as Functions. Windows API procedures that do not return a value should be declared in VBA as a Subs. Result = WinAPIURLDownloadToFile(FileURL, DownloadPath) To ensure compatibility with 32-bit and 64-bit platforms in VBA7, use the LongPtr type for all pointers and handles.ĭownloadPath = Environ$("USERPROFILE") & "\Desktop\Example_WinAPI_PtrSafe.txt" To make Windows API declarations compatible with VBA7, the PtrSafe keyword must be used with the Declare statement.
WINDOWS API COPYIMAGE CODE
To declare a procedure using an alias, specify the original name of the procedure as declared within the code resource using the Alias clause. Specify the location of the procedure using the Lib keyword. To declare Windows API procedures use the Declare statement. Because VBA7 requires the PtrSafe keyword to be used in declarations and the LongLong and LongPtr types were added, there are two versions of the VBA Windows API declarations provided by Microsoft. Microsoft has provided the VBA declarations for Windows API procedures to be used freely. Windows API procedures are declared in VBA and then called directly in VBA code or through a wrapper procedure written in VBA which manages usage of the Windows API procedure. The Windows API allows VBA to access functionalities of the Windows Operating System.
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