How to put a horizontal text scrolling on the form (a news line) -- Visual FoxPro : Using Win32 (WinAPI) Functions


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	Font and Text ..msdn

	CreateFont
	DrawText
	GetCharABCWidths
	GetTextAlign
	GetTextCharacterExtra
	GetTextColor
	GetTextExtentPoint32
	GetTextFace
	GetTextMetrics
	SetTextAlign
	SetTextCharacterExtra
	SetTextColor
	TextOut


	Code examples:

	Creating a clipping region from the path selected into the device context of a form



	Creating a window using CreateWindowEx function



	How to put a horizontal text scrolling on the form (a news line)



	How to put a vertical text scrolling on the form (a movie cast)



	Printing text on the client area of the main VFP window



	Printing text on the main VFP window



	Printing text with the Escape function



	Splash Screen for the VFP application



	Using Font and Text functions



	Using FrameRgn for displaying system colors



	Vertical Label control

How to put a horizontal text scrolling on the form (a news line)

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Before you begin:

Shaking VFP form controls

Playing AVI on _screen

Displaying animated images

Form Magnifier


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7694 bytes
Created: 2002-12-22 13:45:42
Modified: 2011-12-10 09:20:22
Visits in 7 days: 219

Listed functions:

BitBlt
CreateCompatibleBitmap
CreateCompatibleDC
CreateFont
CreateSolidBrush
DeleteDC
DeleteObject
FillRect
GetActiveWindow
GetDesktopWindow
GetFocus
GetTickCount
GetWindowDC
ReleaseDC
SelectObject
SetBkColor
SetBkMode
SetTextColor
TextOut

My comment:

The complete character string is written on invisible canvas, which is a virtual device context.

At each Timer tick an offset is calculated, and a smaller part of the large image is copied from the invisible canvas to a visible one.

A visible canvas is the Device Context created either for an instance of a Form or for the _SCREEN object -- the object must have valid HWnd.

Word Index links for this example:

horizontal text scrolling

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