Why is there a white screen when two programs switch to each other? Program 1: I use the windows API of CreateWindowEx(WS_EX_TOPMOST, szWindowClass, szTitle, WS_POPUP | WS_WYWMENU, 0, 0, LCD_XSIZE, LC...
I need to draw a lot of protel circuit diagrams for my graduation thesis! I just can't figure out some of them! Is there any kindhearted person who can help me! Help me graduate smoothly! I will be ve...
Office and commercial PC: i5-4670, 8G DDR3, 500G 64M 7200 rpm HD (I hate this kind of junk hard drive the most), it is stuck. The network administrator refused to add an SSD, I couldn't stand it anymo...
[font=微软雅黑][size=5]The following is a course on DC-DC/AC-DC converters that I have selected for you. The content involves some key points and techniques for converter use and circuit design. I hope th...
I made a 6-layer board using AD16. There are many polygons on the power layer, and there are also polygons on the top and bottom layers. I tried software 16.1.7 1.11 1.17, and the results were all the...