* * HELP & MANUAL PREMIUM PACK 4 DEMO VERSION * *
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Description
Select the canvas target (window, control) on which future drawing operations will take place
Syntax
n = Canvas_Attach(hWnd, CtrlID, [, Redraw])
Returns
Number
Parameters
Name |
Type |
Optional |
Meaning |
hWnd |
Number |
No |
Handle of the Canvas Window, Window, or Bitmap to be used by subsequent Canvas statements. |
CtrlID |
Number |
No |
The control id, if the target is a Canvas Control, or zero if the target is a Canvas Window or Bitmap |
Redraw |
Number |
Yes |
%TRUE or %FALSE
This option can provide a great improvement in the execution speed of Canvas statements, as it eliminates repetitive updates to the display.
If this option is set to %TRUE, all drawing statements are buffered until a Canvas_Redraw statement is executed, or the operating system chooses to update the target window.
If this option is missed or set to %FALSE, all graphical statements are performed immediately. |
Remarks
Restrictions
See also
Examples
