create_region
Description:
[ Version ( deprecated = true , deprecated_since = "1.8" , since = "1.0" ) ]
public Context create_region (int x_offset, int y_offset, int width, int height)
public Context create_region (int x_offset, int y_offset, int width, int height)
Warning: create_region is deprecated since 1.8.
Creates a new Cairo context that will updat the region defined by x_offset, y_offset, width and
height.
Note:
Use the draw signal and invalidate_rectangle to obtain a clipped Cairo context for 2D drawing.
Do not call this function within the paint virtual function or from a callback to the paint signal.
Parameters:
| this | |
| x_offset |
offset of the region on the X axis |
| y_offset |
offset of the region on the Y axis |
| width |
width of the region, or -1 for the full surface width |
| height |
height of the region, or -1 for the full surface height |
Returns:
|
a newly created Cairo context. Use |