LAnnotationWindow::OnDraw
#include "ltwrappr.h"
virtual L_VOID LAnnotationWindow::OnDraw(hdc, Rect)
HDC hdc; |
/* the device context */ |
RECT& Rect; |
/* the rectangle to be updated */ |
This function is called whenever the class object updates its window. This function is available in the Document/Medical Toolkits.
Parameter |
Description |
hdc |
The device context of the bitmap window. |
Rect |
The bitmap window rectangle to be updated. |
Returns
None
Comments
Override this function if you want to do your own drawing on the class object's window.
This function will be called following the class object's own processing of the WM_PAINT message.
The rect parameter is passed by reference, and is a required parameter.
This function is overridden by the LAnnotationWindow to allow the class object to render the annotations to the window. If you override this function then you must call the parent-class implementation of this function for default processing.
Required DLLs and Libraries
LTANN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Functions: |
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Topics: |
Example
For an example, refer to LAnnotationWindow::OnZoom.