CanvasPixelWidth ( canvas )
Parameters
| canvas - canvas gadget to measure |
Description
|
Returns the width of a canvas's render surface in physical pixels. Requires Extended language mode. This is the real pixel width of the surface you draw on - the size CanvasBuffer, CameraViewport and CanvasMouseX all work in. It usually differs from GadgetWidth, which reports logical 96-DPI units: on a display scaled to 150%, a 400-unit-wide canvas is 600 pixels wide. Because the canvas resizes with its window (via SetGadgetLayout), read it every frame rather than once at startup. The samples call CameraViewport camera,0,0,CanvasPixelWidth(canvas),CanvasPixelHeight(canvas) at the top of the render loop so the 3D view always fills the current canvas exactly. See it working in the world editor shell sample. See also: CanvasPixelHeight, CanvasMouseX, CanvasBuffer, GadgetWidth, CameraViewport. |
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