Win32 SDK中窗口全屏处理 用window api实现程序全屏显示

http://www.cnblogs.com/phinecos/archive/2008/02/14/1069117.html

   首先是考虑全屏处理的时机，是在创建窗口时还是显示窗口时进行，若是前者，则可以：

BOOL InitInstance(HINSTANCE hInstance,  int nCmdShow)
{
   HWND hWnd;
   hInst = hInstance; // 将实例句柄存储在全局变量中
    UINT width = GetSystemMetrics(SM_CXSCREEN);
    UINT height = GetSystemMetrics(SM_CYSCREEN);
   //创建窗口
   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;
}

若是在显示窗口时进行处理:

BOOL InitInstance(HINSTANCE hInstance,  int nCmdShow)
{
   HWND hWnd;
   hInst = hInstance; // 将实例句柄存储在全局变量中
   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;
}

也可以让用户控制全屏的时机，比如按下”ESC“键后进入全屏

BOOL InitInstance(HINSTANCE hInstance,  int nCmdShow)
{
   HWND hWnd;
   hInst = hInstance; // 将实例句柄存储在全局变量中
   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;
}

在窗口处理函数中对ESC键进行处理：

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;
}

作者：洞庭散人

http://zhidao.baidu.com/link?url=TucQ6ISLNXUgOA3dvDX9GE9VG-RO31F8vq9lQQQqdB6v_EqpDXLqsykd612_6cHg6Vk-CYBFdnxgbLZlFj0JNq

给你完整的代码吧。这应该是你想要的。

//请用alt+f4关闭该窗口，以下代码可运行于vc6至vc9(vs2008)版本 
#include <windows.h> 

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ; 

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, 
PSTR szCmdLine, int iCmdShow) 
{ 
static TCHAR szAppName[] = TEXT ("HelloWin") ; 
HWND hwnd ; 
MSG msg ; 
WNDCLASS wndclass ; 

wndclass.style = CS_HREDRAW | CS_VREDRAW ; 
wndclass.lpfnWndProc = WndProc ; 
wndclass.cbClsExtra = 0 ; 
wndclass.cbWndExtra = 0 ; 
wndclass.hInstance = hInstance ; 
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ; 
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ; 
wndclass.hbrBackground= (HBRUSH) GetStockObject (WHITE_BRUSH) ; 
wndclass.lpszMenuName = NULL ; 
wndclass.lpszClassName= szAppName ; 

if (!RegisterClass (&wndclass)) 
{ 
MessageBox ( NULL, TEXT ("This program requires Windows NT!"), 
szAppName, MB_ICONERROR) ; 
return 0 ; 
} 

hwnd = CreateWindow( szAppName, // window class name 
TEXT ("Full Screen Display"), // window caption 
// WS_OVERLAPPEDWINDOW, // window style 
WS_POPUP, 
// CW_USEDEFAULT,// initial x position 
// CW_USEDEFAULT,// initial y position 
// CW_USEDEFAULT,// initial x size 
// CW_USEDEFAULT,// initial y size 
0, 
0, 
::GetSystemMetrics(SM_CXSCREEN), 
::GetSystemMetrics(SM_CYSCREEN), 
NULL, // parent window handle 
NULL, // window menu handle 
hInstance, // program instance handle 
NULL) ; // creation parameters 

ShowWindow (hwnd, iCmdShow) ; 
UpdateWindow (hwnd) ; 

while (GetMessage (&msg, NULL, 0, 0)) 
{ 
TranslateMessage (&msg) ; 
DispatchMessage (&msg) ; 
} 
return msg.wParam ; 
} 

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
HDC hdc ; 
PAINTSTRUCT ps ; 
RECT rect ; 

switch (message) 
{ 
case WM_CREATE: 
// PlaySound (TEXT ("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC) ; 
return 0 ; 
case WM_PAINT: 
hdc = BeginPaint (hwnd, &ps) ; 
GetClientRect (hwnd, &rect) ; 
DrawText (hdc, TEXT ("This window can cover the task item!"), -1, &rect, 
DT_SINGLELINE | DT_CENTER | DT_VCENTER) ; 
EndPaint (hwnd, &ps) ; 
return 0 ; 
case WM_DESTROY: 
PostQuitMessage (0) ; 
return 0 ; 
} 
return DefWindowProc (hwnd, message, wParam, lParam) ; 
}

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谢谢