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 SWPGETKEY()
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 Purpose:
 Enable / disable waiting for a keypress before restoring the parent image.

 Syntax:
 lValue = SWPGETKEY(lValue)

 Parameters:
 lValue  Enable / disable indicator.

 Returns:
 The previous setting.

 Default:
 Disabled.

 Description:
 This function enables / disables waiting for a keystroke by the swap system
 before reloading the parent process. The video mode will be restored after
 the key press (if saving of the video mode is enabled). This function can
 be used to pause with a graphics image displayed.

 Example:
 SWPGETKEY(.T.)    // Wait for keypress                                      
 SWPVIDMDE(.T.)    // Save video mode                                        
 SWPRUNCMD("SHOWIMG NICEONE.IMG",0,"","")