#include <windows.h>
#define IDB_NUM1 111
int cxClient, cyClient ;
HWND hwnd ,hwndChild ;
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("SineWave") ;
MSG msg ;
WNDCLASS wndclass;
HRGN hRgn ;
POINT edge[5] ;
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 (LTGRAY_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("Program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow ( szAppName, TEXT ("窗口母本程序"),
WS_OVERLAPPEDWINDOW,
10, 10,
20, 50,
NULL, NULL, hInstance, NULL) ;
hwndChild = CreateWindow("BUTTON",
"最上端控件",
WS_CHILD ,
60, 140,
580, 530,
GetDesktopWindow(),
(HMENU) IDB_NUM1,
hInstance,
NULL);
SetWindowPos(hwnd
, HWND_BOTTOM
, 0, 0
, GetSystemMetrics(SM_CXSCREEN),GetSystemMetrics(SM_CYSCREEN)
, SWP_HIDEWINDOW) ;
SetWindowPos(hwndChild, HWND_TOP, 0, 0, 500, 500, SWP_SHOWWINDOW);
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 ;
switch (message)
{
case WM_CREATE:
return 0 ;
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
SetWindowPos(hwnd
, HWND_BOTTOM
, 0, 0
, GetSystemMetrics(SM_CXSCREEN),GetSystemMetrics(SM_CYSCREEN)
, SWP_HIDEWINDOW) ;
SetWindowPos(hwndChild, HWND_TOP, 0, 0, 500, 500, SWP_SHOWWINDOW);
InvalidateRect (hwnd, NULL, FALSE) ;
return 0;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}