Will the display problem in VC!

colderxl

How to draw a point in VC, can there be functions to display it? I originally wanted to use the map method to post each point and display it like a bitmap, but it seems too slow, please advise!

深蓝旅者

CDC :: FillRect is recommended.
If only one point is drawn, it is generally invisible to the naked eye, and usually larger.
COLORREF SetPixel (
  HDC hdc,
  int X,
  int Y,
  COLORREF crColor
);

colderxl

What should I do if I want to display a point in a rectangular shape? Need to display a small rectangle?

深蓝旅者

Yes, a small rectangle with length = 2 and width = 2 is displayed. If you still can't see it, you can draw a bigger one.

colderxl

Thank you, I've now understood,
Would you like to know how the string pointer wraps?