CD_IMAGE

From 7b52cc13af4e85f1ca2deb6b6c77de9c95ea0dcf Mon Sep 17 00:00:00 2001 From: scuri Date: Fri, 17 Oct 2008 06:10:33 +0000 Subject: First commit - moving from LuaForge to SourceForge --- html/en/drv/image.html | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 html/en/drv/image.html (limited to 'html/en/drv/image.html') diff --git a/html/en/drv/image.html b/html/en/drv/image.html new file mode 100644 index 0000000..f19b3b3 --- /dev/null +++ b/html/en/drv/image.html @@ -0,0 +1,57 @@ + + + + + + +CD_IMAGE + + + + + +

CD_IMAGE - Server Image Driver (cdimage.h)

+ +

This driver provides access to a Server Image, a memory-based + high-performance image that corresponds to the attributes of the system's + devices. It is used for offscreen drawings.

+ +

Use

+ +

The canvas is created by means of a call to function + + cdCreateCanvas(CD_IMAGE, + Data), after which other functions in the CD library can be called as + usual. The function creates a CD canvas based on an existing Server Image. The + Data parameter must be a pointer to an image + created with function + + cdCreateImage.

Any amount of such canvases may exist simultaneously. It is important to + note that a call to function + + cdKillCanvas is required to + properly end the driver. You can call function + + cdKillImage only after + calling cdKillCanvas.

For use with CDLUA, the Server Image passed as parameter must have been + created with function cd.CreateImage + in Lua.

To use this driver in Windows using GDI+ is necessary to call + + cdUseContextPlus(1) +before creating the canvas.

+ +

Behavior of Functions

+ +

This driver is greatly platform-dependent. For further detail, see the + Behavior of Functions in each platform: Microsoft + Windows (GDI), Windows Using GDI+, + X-Windows (XLIB). However, it should be noted that + some functions behave differently from the basic functions of each platform.

+ + + + + -- cgit v1.2.3