wxDC.Clear() is a method provided by the wxWidgets library which enables the clearing of the entire device context, returning it to its default state. This can be useful in preparing for a new drawing on a particular device context without any interference from previous elements.
Example code:
wxDC* dc = new wxClientDC(this); dc->Clear();
This code creates a new device context, sets it to a client context for the current window, and then clears it.
Another example:
wxDC* dc = new wxMemoryDC(); wxBitmap bitmap(400, 300); dc->SelectObject(bitmap); dc->Clear();
This code creates a new memory device context and selects a new bitmap of size 400x300 for it. The Clear() method is then used to clear the device context before any drawing is done on it.
Overall, wxDC.Clear() is a useful method in the wxWidgets library for clearing device contexts before starting new drawing operations.
C++ (Cpp) wxDC::Clear - 30 examples found. These are the top rated real world C++ (Cpp) examples of wxDC::Clear extracted from open source projects. You can rate examples to help us improve the quality of examples.