How do I know, in code, if RadialGradientBrush is not being shown correctly?
问题 I'm using RadialGradientBrush as background for a Button. On one computer, it works well. On the other, the background is transparent. NewComputer: Intel i7-8700, 16Gb ram, 64-bit OS, graphics - Nvidia GeForce GTx1050Ti OldComputer: Intel 6300, 2Gb ram, 32-bit OS, graphics - Intel G965 Express Chipset Family Both computers are running Windows 10 Home, 1809 (17763.503), 1920x1080 monitor. Running the same program on each computer (shown below), I do not get the RadialGradientBrush to show up