Why does the rex file in C++ form design disappear?
On the File menu, click New, and then click Project. In the Project Types pane, select CLR in the VisualC++ node, and then select Windows Forms Application in the Templates pane. Type the name of the project, such as "winformsapp". You can accept the default location, type a location, or browse to the directory where you want to save the project. Windows Form Designer opens, displaying the "Form 1" of the created project.