| BOOL ShowWindow(hwnd, nCmdShow) | |||||
| HWND hwnd; | /* handle of window, */ | ||||
| int nCmdShow; | /* window visibility flag | */ | |||
The ShowWindow function sets the given window's visibility state.
hwnd
Identifies the window.
nCmdShow
Specifies how the window is to be shown. This parameter can be one of the following values:
| Value | Meaning |
| SW_HIDE | Hides the window and passes activation to another window. |
| SW_MINIMIZE | Minimizes the specified window and activates the top-level window in the system's list. |
| SW_RESTORE | Activates and displays a window. If the window is minimized or maximized, Windows restores it to its original size and position (same as SW_SHOWNORMAL). |
| SW_SHOW | Activates a window and displays it in its current size and position. |
| SW_SHOWMAXIMIZED | Activates a window and displays it as a maximized window. |
| SW_SHOWMINIMIZED | Activates a window and displays it as an icon. |
| SW_SHOWMINNOACTIVE | Displays a window as an icon. The window that is currently active remains active. |
| SW_SHOWNA | Displays a window in its current state. The window that is currently active remains active. |
| SW_SHOWNOACTIVATE | Displays a window in its most recent size and position. The window that is currently active remains active. |
| SW_SHOWNORMAL | Activates and displays a window. If the window is minimized or maximized, Windows restores it to its original size and position (same as SW_RESTORE). |
The return value is nonzero if the window was previously visible. It is zero if the window was previously hidden.
The ShowWindow function must be called only once per application using the nCmdShow parameter from the WinMain function. Subsequent calls to ShowWindow must use one of the values listed in the preceding list, instead of the one specified by the nCmdShow parameter from WinMain.