如何在C ++中通过wxSocket发送wxImage？

Question

How can I send a wxImage through TCP wxSocket in c++?
Should I convert the wxImage to a wxString or can it be directly send over? In that case how do I convert a wxImage tobe a wxString?

Answer 1

You have direct access to the image data via its GetData() member, so you could just send it directly, at least if you have an image without alpha. However in practice, compressing it first would probably be a good idea as uncompressed images are huge. You could either use zlib compression or, perhaps simpler, write the image in PNG or JPEG format to a memory buffer and send this buffer instead.

Converting the image to a string would be possible too but highly suboptimal.

Answer 2

Hai wxImage :: GetData（）返回unsigned char *，因此您可以轻松地以字符串形式发送图像。不要忘记发送图像的宽度和高度，这两个属性必须再次用于将数据转换为图像。