Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Displaying the drive type value
Drawing cursors for the classes defined by the system (preregistered): BUTTON, EDIT, LISTBOX etc.
Enumerating the subkeys of a user-specific key
Enumerating Volumes and Volume Mounting Points (NTFS)
How to enumerate logon sessions on local computer
How to ping a remote site using IP Helper API calls
How to start the screen saver and how to find whether the screen saver is active
Obtaining OS memory performance information
Passing data records between VFP applications via the Clipboard
Pocket PC: base class
Reading the state of mouse buttons within DO WHILE loop
Reading the structure of VFP main menu
Retrieving information about the specified icon
Retrieving the priority class for the current process
Testing Transparent Menu Class with top-level form (requires VFP9)
Vertical Label control
Winsock: retrieving directory listing from an FTP server using passive data connection (FTP, port 21)
Bitmap Class for Visual FoxPro application
Dial the Net Automatically
Disk in drive A:
Displaying animated images on FoxPro form with BitBlt and StretchBlt functions
Displaying bitmap using the AlphaBlend function
Drawing a rectangle using Windows regular edges and borders
Drawing Windows predefined bitmaps using the LoadBitmap functions
The original LoadPicture() function in VFP returns valid handles to bitmaps, icons, cursors, and metafiles

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Before you begin:
Provide valid file names when calling this function.
DECLARE INTEGER GetObjectType IN gdi32 INTEGER h
#DEFINE OBJ_BITMAP    7
#DEFINE OBJ_METAFILE  9

LOCAL obj

* provide valid file names

= LoadObject("badge.bmp")
= LoadObject("BACKGRND.GIF")
= LoadObject("BD04956_.WMF")
= LoadObject("FILES10.ICO")
= LoadObject("H_POINT.CUR")

PROCEDURE LoadObject (lcFilename)
    LOCAL obj
    ? "Filename:", FULLPATH(lcFilename)

    IF FILE(lcFilename)
        obj = LoadPicture (lcFilename)
    ENDIF

    IF TYPE("obj") = "O"
        ? "Handle:", obj.handle
        ? "Handle type:", GetObjectType(obj.handle)
        ? "Width:", obj.width
        ? "Height:", obj.height
    ELSE
        ?? " -- not accessible"
    ENDIF
    ?


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640 bytes  
Created: 2002-03-31 14:09:12  
Modified: 2003-04-23 22:22:10  
Visits in 7 days: 29  
Listed functions:
GetObjectType
Printer friendly API declarations
My comment:
The LoadPicture() function (note this is a VFP function, not Win32 one) loads bitmap files as well as GIF and JPEG files, converting them into memory bitmaps. So after all you get valid bitmap handle -- no need to implement Win32-based algorithms for reading GIFs and JPEGs.
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