Win32API How to set a full screen for a window

The first is to consider the timing of full-screen processing, whether you are creating a window or displaying a window, and if the former, you can:

BOOL InitInstance (hinstance hinstance, int ncmdshow)

{

HWND hwnd;

Hinst = hinstance; To store an instance handle in a global variable

UINT width = getsystemmetrics (sm_cxscreen);

UINT height = getsystemmetrics (sm_cyscreen);

Create a window

Hwnd=createwindow (

Szwindowclass,

SzTitle,

Ws_popup,

0,0,

Width,height,

Null,null,

HINSTANCE,

NULL);

if (!hwnd)

{

return FALSE;

}

ShowWindow (HWnd, ncmdshow);

UpdateWindow (HWND);

return TRUE;

}

If you are working on the display window:

BOOL InitInstance (hinstance hinstance, int ncmdshow)

{

HWND hwnd;

Hinst = hinstance; To store an instance handle in a global variable

HWnd = CreateWindow (Szwindowclass, SzTitle, Ws_overlappedwindow,

Cw_usedefault, 0, cw_usedefault, 0, NULL, NULL, HINSTANCE, NULL);

if (!hwnd)

{

return FALSE;

}

HWND Hdesk;

RECT RC;

Hdesk = GetDesktopWindow ();

GetWindowRect (Hdesk, &RC);

SetWindowLong (HWnd, Gwl_style, Ws_border);

SetWindowPos (hWnd, hwnd_topmost, 0, 0, rc.right, Rc.bottom, Swp_showwindow);

ShowWindow (HWnd, ncmdshow);

UpdateWindow (HWND);

return TRUE;

}

You can also allow users to control the full screen time, such as press the "ESC" key to enter the full screen

BOOL InitInstance (hinstance hinstance, int ncmdshow)

{

HWND hwnd;

Hinst = hinstance; To store an instance handle in a global variable

HWnd = CreateWindow (Szwindowclass, SzTitle, Ws_overlappedwindow,

Cw_usedefault, 0, cw_usedefault, 0, NULL, NULL, HINSTANCE, NULL);

if (!hwnd)

{

return FALSE;

}

ShowWindow (HWnd, ncmdshow);

UpdateWindow (HWND)

return TRUE;

}

To handle the ESC key in a window-handling function:

Switch (message)

{

Case WM_KEYDOWN:

Switch (WParam)

{

Case Vk_escape:

{

HWND Hdesk;

RECT RC;

Hdesk = GetDesktopWindow ();

GetWindowRect (Hdesk, &RC);

SetWindowLong (HWnd, Gwl_style, Ws_border);

SetWindowPos (hWnd, hwnd_topmost, 0, 0, rc.right, Rc.bottom, Swp_showwindow);

}

Break

}

return 0;

}