Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Custom GDI+ class
Obtaining names and positions for shortcuts located on the Windows Desktop
Using Video Capture: displaying on FoxPro form frames and previewing video obtained from a digital camera
How to change display settings: screen resolution, screen refresh rate
Enumerating devices installed on the local machine
Class for sound recording
Custom HttpRequest class (WinHTTP)
Winsock: sending email messages (SMTP, port 25)
Vertical Label control
How to print FoxPro form
How to convert a bitmap file to monochrome format (1 bpp)
How to activate Windows Calculator
Storing screen shot of a form to bitmap file
How to copy the image of a form to the Clipboard using Bitmap API functions
How to make a VFP form fading out when released (GDI version)
How to put a horizontal text scrolling on the form (a news line, marquee)
How to set Creation Date/Time for a folder (WinNT)
How to print a bitmap file
Splash Screen for the VFP application
Subclassing CommandButton control to create BackColor property
Adding and deleting Scheduled Tasks using NetScheduleJob API functions
Creating irregularly shaped FoxPro form using transparency color key
Custom FTP Class for Visual FoxPro application
Creating the Save dialog box to specify the drive, directory, and name of a file to save

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User rating: 8/10 (1 votes)
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5350 bytes  
Created: 2002-01-25 20:14:30  
Modified: 2011-12-10 09:20:22  
Visits in 7 days: 19  
Listed functions:
CommDlgExtendedError
GetActiveWindow
GetSaveFileName
GlobalAlloc
GlobalFree
GlobalSize
Printer friendly API declarations
My comment:
The OPENFILENAME structure length depends on the OS, and can be 76 or 88 bytes.

This is important, because invalid parameter creates an error. Note that this structure is used with GetOpenFileName and GetSaveFileName functions. There is substantial set of OFN flags to control the dialog behaviour.

To fill the OPENFILENAME structure -- as well as almost all other Comdlg structures used -- you need not just strings but pointers to strings. There is a class PChar in this examples, which creates such extended strings. In more simple cases the StrDup is quite enough to accomplish this task.
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